Remove many unwrap

Rewrite for dictionary rw indexer
Rewrite for dictionary indexer
2026-08-19 19:21:21 +03:00 · 2026-08-19 18:49:32 +03:00 · 2026-08-19 18:00:03 +03:00 · 2026-08-19 17:39:52 +03:00 · 2026-08-19 17:34:48 +03:00 · 2026-08-19 17:33:22 +03:00
30 changed files with 2493 additions and 1131 deletions
@@ -24,6 +24,17 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"

+[[package]]
+name = "aes"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8eb277bec05f56a0e0591f155a484cbd0f4f07ff2905051a48c72f004f7ed58"
+dependencies = [
+ "cipher",
+ "cpubits",
+ "cpufeatures",
+]
+
 [[package]]
 name = "ahash"
 version = "0.8.12"
@@ -62,6 +73,12 @@ dependencies = [
 "cc",
 ]

+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "alsa"
 version = "0.11.0"
@@ -386,6 +403,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cdd35008169921d80bc60d3d0ab416eecb028c4cd653352907921d95084790be"
 dependencies = [
 "hybrid-array",
+ "zeroize",
 ]

 [[package]]
@@ -457,6 +475,15 @@ version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e748733b7cbc798e1434b6ac524f0c1ff2ab456fe201501e6497c8417a4fc33"

+[[package]]
+name = "bzip2"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a53fac24f34a81bc9954b5d6cfce0c21e18ec6959f44f56e8e90e4bb7c346c"
+dependencies = [
+ "libbz2-rs-sys",
+]
+
 [[package]]
 name = "calloop"
 version = "0.13.0"
@@ -595,6 +622,16 @@ dependencies = [
 "half",
 ]

+[[package]]
+name = "cipher"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e34d8227fe1ba289043aeb13792056ff80fd6de1a9f49137a5f499de8e8c78ea"
+dependencies = [
+ "crypto-common",
+ "inout",
+]
+
 [[package]]
 name = "clap"
 version = "4.6.1"
@@ -668,6 +705,12 @@ dependencies = [
 "cc",
 ]

+[[package]]
+name = "cmov"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c9ea0ac24bc397ab3c98583a3c9ba74fa56b09a4449bbe172b9b1ddb016027a"
+
 [[package]]
 name = "codespan-reporting"
 version = "0.12.0"
@@ -730,6 +773,12 @@ dependencies = [
 "tiny-keccak",
 ]

+[[package]]
+name = "constant_time_eq"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d52eff69cd5e647efe296129160853a42795992097e8af39800e1060caeea9b"
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -868,6 +917,12 @@ dependencies = [
 "windows 0.62.2",
 ]

+[[package]]
+name = "cpubits"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15b85f9c39137c3a891689859392b1bd49812121d0d61c9caf00d46ed5ce06ae"
+
 [[package]]
 name = "cpufeatures"
 version = "0.3.0"
@@ -980,6 +1035,15 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b29fccfdaeb0f9bd90da5759b1d0eaa2f6cfcfe90960124cfc83141ed4e111fd"

+[[package]]
+name = "ctutils"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d5515a3834141de9eafb9717ad39eea8247b5674e6066c404e8c4b365d2a29e"
+dependencies = [
+ "cmov",
+]
+
 [[package]]
 name = "cursor-icon"
 version = "1.2.0"
@@ -998,6 +1062,18 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be1e0bca6c3637f992fc1cc7cbc52a78c1ef6db076dbf1059c4323d6a2048376"

+[[package]]
+name = "deflate64"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac6b926516df9c60bfa16e107b21086399f8285a44ca9711344b9e553c5146e2"
+
+[[package]]
+name = "deranged"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7cd812cc2bc1d69d4764bd80df88b4317eaef9e773c75226407d9bc0876b211c"
+
 [[package]]
 name = "digest"
 version = "0.11.2"
@@ -1007,6 +1083,8 @@ dependencies = [
 "block-buffer",
 "const-oid",
 "crypto-common",
+ "ctutils",
+ "zeroize",
 ]

 [[package]]
@@ -1043,6 +1121,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "89a09f22a6c6069a18470eb92d2298acf25463f14256d24778e1230d789a2aec"
 dependencies = [
 "bitflags 2.10.0",
+ "block2 0.6.2",
+ "libc",
 "objc2 0.6.3",
 ]

@@ -1244,6 +1324,7 @@ checksum = "843fba2746e448b37e26a819579957415c8cef339bf08564fe8b7ddbd959573c"
 dependencies = [
 "crc32fast",
 "miniz_oxide",
+ "zlib-rs",
 ]

 [[package]]
@@ -1675,6 +1756,8 @@ version = "0.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"
 dependencies = [
+ "allocator-api2",
+ "equivalent",
 "foldhash 0.2.0",
 ]

@@ -1717,6 +1800,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dfa686283ad6dd069f105e5ab091b04c62850d3e4cf5d67debad1933f55023df"

+[[package]]
+name = "hmac"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6303bc9732ae41b04cb554b844a762b4115a61bfaa81e3e83050991eeb56863f"
+dependencies = [
+ "digest",
+]
+
 [[package]]
 name = "http"
 version = "1.4.0"
@@ -2175,6 +2267,15 @@ dependencies = [
 "serde_core",
 ]

+[[package]]
+name = "inout"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4250ce6452e92010fdf7268ccc5d14faa80bb12fc741938534c58f16804e03c7"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.12.0"
@@ -2213,11 +2314,15 @@ dependencies = [
 "chrono",
 "criterion",
 "dirs",
+ "hashbrown 0.17.1",
 "hex",
 "iced",
 "iced_core",
+ "mimalloc",
 "rand",
+ "rayon",
 "reqwest",
+ "rfd",
 "rhai",
 "rodio",
 "rusqlite",
@@ -2225,6 +2330,7 @@ dependencies = [
 "serde_json",
 "sha2",
 "tokio",
+ "zip",
 "zstd",
 ]

@@ -2369,6 +2475,12 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"

+[[package]]
+name = "libbz2-rs-sys"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34b357333733e8260735ba5894eb928c02ecc69c78715f01a8019e7fa7f2db4c"
+
 [[package]]
 name = "libc"
 version = "0.2.189"
@@ -2391,6 +2503,15 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6d2cec3eae94f9f509c767b45932f1ada8350c4bdb85af2fcab4a3c14807981"

+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a45a52f43e1c16f667ccfe4dd8c85b7f7c204fd5e3bf46c5b0db9a5c3c0b8e9"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "libredox"
 version = "0.1.12"
@@ -2479,6 +2600,15 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"

+[[package]]
+name = "lzma-rust2"
+version = "0.16.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca93e534d1142d1d0dcca6d25fe302508a5dfb40b302802904577725ea0b695b"
+dependencies = [
+ "sha2",
+]
+
 [[package]]
 name = "mach2"
 version = "0.5.0"
@@ -2536,6 +2666,15 @@ dependencies = [
 "paste",
 ]

+[[package]]
+name = "mimalloc"
+version = "0.1.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d4139bb28d14ad1facf21d5eb8825051b326e172d216b39f6d31df53cc97862"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -2654,6 +2793,15 @@ dependencies = [
 "jni-sys 0.3.0",
 ]

+[[package]]
+name = "no-std-compat"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b93853da6d84c2e3c7d730d6473e8817692dd89be387eb01b94d7f108ecb5b8c"
+dependencies = [
+ "spin",
+]
+
 [[package]]
 name = "num-bigint"
 version = "0.4.6"
@@ -2664,6 +2812,12 @@ dependencies = [
 "num-traits",
 ]

+[[package]]
+name = "num-conv"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "521739c6d2bac4aa25192232afe6841231376b2b26d4d9fae5ecf8ca5772e441"
+
 [[package]]
 name = "num-derive"
 version = "0.4.2"
@@ -3280,6 +3434,16 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"

+[[package]]
+name = "pbkdf2"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "112d82ceb8c5bf524d9af484d4e4970c9fd5a0cc15ba14ad93dccd28873b0629"
+dependencies = [
+ "digest",
+ "hmac",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.2"
@@ -3396,6 +3560,12 @@ dependencies = [
 "windows-sys 0.61.2",
 ]

+[[package]]
+name = "pollster"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f3a9f18d041e6d0e102a0a46750538147e5e8992d3b4873aaafee2520b00ce3"
+
 [[package]]
 name = "portable-atomic"
 version = "1.13.1"
@@ -3420,6 +3590,18 @@ dependencies = [
 "zerovec",
 ]

+[[package]]
+name = "powerfmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
+
+[[package]]
+name = "ppmd-rust"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "efca4c95a19a79d1c98f791f10aebd5c1363b473244630bb7dbde1dc98455a24"
+
 [[package]]
 name = "presser"
 version = "0.3.1"
@@ -3779,6 +3961,33 @@ dependencies = [
 "zune-jpeg",
 ]

+[[package]]
+name = "rfd"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20dafead71c16a34e1ff357ddefc8afc11e7d51d6d2b9fbd07eaa48e3e540220"
+dependencies = [
+ "block2 0.6.2",
+ "dispatch2",
+ "js-sys",
+ "libc",
+ "log",
+ "objc2 0.6.3",
+ "objc2-app-kit 0.3.2",
+ "objc2-core-foundation",
+ "objc2-foundation 0.3.2",
+ "percent-encoding",
+ "pollster",
+ "raw-window-handle",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "wayland-backend",
+ "wayland-client",
+ "wayland-protocols",
+ "web-sys",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "rgb"
 version = "0.8.53"
@@ -3796,6 +4005,7 @@ checksum = "dd4dd0f8c36625202a4ba553c416c19b719947cd2a31d1bda06126e4a5727daf"
 dependencies = [
 "ahash",
 "bitflags 2.10.0",
+ "no-std-compat",
 "num-traits",
 "once_cell",
 "rhai_codegen",
@@ -4162,6 +4372,17 @@ dependencies = [
 "syn 2.0.114",
 ]

+[[package]]
+name = "sha1"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aacc4cc499359472b4abe1bf11d0b12e688af9a805fa5e3016f9a386dc2d0214"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
 name = "sha2"
 version = "0.11.0"
@@ -4381,6 +4602,12 @@ dependencies = [
 "x11rb",
 ]

+[[package]]
+name = "spin"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
+
 [[package]]
 name = "spirv"
 version = "0.3.0+sdk-1.3.268.0"
@@ -4743,6 +4970,26 @@ dependencies = [
 "syn 2.0.114",
 ]

+[[package]]
+name = "time"
+version = "0.3.55"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdb87b95ec50ddfa440816d227a17b2ccbdda963a316a727fda0fc4334f7d134"
+dependencies = [
+ "deranged",
+ "js-sys",
+ "num-conv",
+ "powerfmt",
+ "serde_core",
+ "time-core",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e1c906769ad99c88eaa54e728060edef082f8e358ff32030cb7c7d315e81109"
+
 [[package]]
 name = "tiny-keccak"
 version = "2.0.2"
@@ -4997,6 +5244,12 @@ dependencies = [
 "core_maths",
 ]

+[[package]]
+name = "typed-path"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e28f89b80c87b8fb0cf04ab448d5dd0dd0ade2f8891bae878de66a75a28600e"
+
 [[package]]
 name = "typenum"
 version = "1.20.0"
@@ -6437,12 +6690,57 @@ dependencies = [
 "syn 2.0.114",
 ]

+[[package]]
+name = "zip"
+version = "8.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d04a6b5381502aa6087c94c669499eb1602eb9c5e8198e534de571f7154809b"
+dependencies = [
+ "aes",
+ "bzip2",
+ "constant_time_eq",
+ "crc32fast",
+ "deflate64",
+ "flate2",
+ "getrandom 0.4.1",
+ "hmac",
+ "indexmap",
+ "lzma-rust2",
+ "memchr",
+ "pbkdf2",
+ "ppmd-rust",
+ "sha1",
+ "time",
+ "typed-path",
+ "zeroize",
+ "zopfli",
+ "zstd",
+]
+
+[[package]]
+name = "zlib-rs"
+version = "0.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34b31d188d9d685a4f9c7b46d6e36631b07058d2cfe190267adce54dc230bf12"
+
 [[package]]
 name = "zmij"
 version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4de98dfa5d5b7fef4ee834d0073d560c9ca7b6c46a71d058c48db7960f8cfaf7"

+[[package]]
+name = "zopfli"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f05cd8797d63865425ff89b5c4a48804f35ba0ce8d125800027ad6017d2b5249"
+dependencies = [
+ "bumpalo",
+ "crc32fast",
+ "log",
+ "simd-adler32",
+]
+
 [[package]]
 name = "zstd"
 version = "0.13.3"
@@ -10,7 +10,7 @@ rand = "0.10.2"
 dirs = "6.0.0"
 serde = { version = "1.0.229", features = ["derive"] }
 serde_json = "1.0.151"
-rhai = "1.25.1"
+rhai = { version = "1.25.1", features = ["sync"] }
 chrono = "0.4.45"
 rusqlite = { version = "0.40.2", features = ["chrono", "bundled"] }
 reqwest = { version = "0.13.4", features = ["json", "stream", "multipart"] }
@@ -19,16 +19,25 @@ sha2 = "0.11.0"
 tokio = { version = "1.53.1", features = ["rt", "rt-multi-thread", "macros"] }
 hex = "0.4.3"
 zstd = "0.13.3"
-
-[dev-dependencies]
-criterion = "0.8.2"
-
-[[bench]]
-name = "split_bench"  # Имя файла в benches/ без расширения
-harness = false       # Отключаем стандартный тестовый раннер
+zip = "8.6.0"
+rfd = "0.17.2"
+mimalloc = "0.1.52"
+hashbrown = "0.17.1"
+rayon = "1.12.0"

 [profile.super-release]
 inherits = "release"
 codegen-units = 1
 lto = true
 opt-level = 3
+strip = true
+panic = "abort"
+
+[dev-dependencies]
+criterion = { version = "0.8.2", features = ["html_reports"] }
+
+[[bench]]
+name = "map_bench"
+harness = false
+
+
@@ -0,0 +1,126 @@
+use criterion::{Criterion, criterion_group, criterion_main};
+use std::collections::HashMap as StdHashMap;
+use std::hint::black_box;
+
+use hashbrown::HashMap as BrownHashMap;
+
+const SIZES: [usize; 3] = [5, 10, 50];
+const QUERY_COUNT: usize = 4096;
+
+/// Детерминированный ключ ~17 символов, например "key_9e3779b9_0042".
+fn make_key(i: u64) -> String {
+    let h = i.wrapping_mul(0x9E37_79B9_7F4A_7C15);
+    format!("key_{:08x}_{:04}", h & 0xFFFF_FFFF, i)
+}
+
+// Для длинных ключей (пути/URL) замени на:
+// fn make_key(i: u64) -> String {
+//     format!(
+//         "/api/v2/users/{i}/settings/visibility_{:08x}",
+//         i.wrapping_mul(0x9E37_79B9)
+//     )
+// }
+
+fn make_vec(n: usize) -> Vec<(String, u64)> {
+    (0..n as u64).map(|i| (make_key(i), i)).collect()
+}
+
+fn make_std_map(data: &[(String, u64)]) -> StdHashMap<String, u64> {
+    data.iter().map(|(k, v)| (k.clone(), *v)).collect()
+}
+
+fn make_brown_map(data: &[(String, u64)]) -> BrownHashMap<String, u64> {
+    data.iter().map(|(k, v)| (k.clone(), *v)).collect()
+}
+
+fn make_queries(n: usize, with_misses: bool) -> Vec<String> {
+    let keys: Vec<String> = (0..n as u64).map(make_key).collect();
+    let missing = "__missing_key__".to_string();
+
+    (0..QUERY_COUNT)
+        .map(|i| {
+            if with_misses && i % 16 == 15 {
+                missing.clone()
+            } else {
+                let idx = i.wrapping_mul(2_654_435_761) % n;
+                keys[idx].clone()
+            }
+        })
+        .collect()
+}
+
+fn lookup_std(map: &StdHashMap<String, u64>, queries: &[String]) -> u64 {
+    let mut sum = 0u64;
+    for q in queries {
+        match map.get(black_box(q.as_str())) {
+            Some(v) => sum = sum.wrapping_add(*v),
+            None => sum = sum.wrapping_add(1),
+        }
+    }
+    black_box(sum)
+}
+
+fn lookup_brown(map: &BrownHashMap<String, u64>, queries: &[String]) -> u64 {
+    let mut sum = 0u64;
+    for q in queries {
+        match map.get(black_box(q.as_str())) {
+            Some(v) => sum = sum.wrapping_add(*v),
+            None => sum = sum.wrapping_add(1),
+        }
+    }
+    black_box(sum)
+}
+
+fn lookup_vec(data: &[(String, u64)], queries: &[String]) -> u64 {
+    let mut sum = 0u64;
+    for q in queries {
+        let q = black_box(q);
+        match data.iter().find(|(k, _)| k == q) {
+            Some((_, v)) => sum = sum.wrapping_add(*v),
+            None => sum = sum.wrapping_add(1),
+        }
+    }
+    black_box(sum)
+}
+
+fn bench(c: &mut Criterion) {
+    let mut group = c.benchmark_group("map_vs_vec_str");
+
+    for n in SIZES {
+        let vec_data = make_vec(n);
+        let std_map = make_std_map(&vec_data);
+        let brown_map = make_brown_map(&vec_data);
+
+        let queries_hit = make_queries(n, false);
+        let queries_mixed = make_queries(n, true);
+
+        // std::collections::HashMap (SipHash)
+        group.bench_function(format!("std_hashmap_hit/{n}"), |b| {
+            b.iter(|| lookup_std(black_box(&std_map), black_box(&queries_hit)))
+        });
+        group.bench_function(format!("std_hashmap_mixed/{n}"), |b| {
+            b.iter(|| lookup_std(black_box(&std_map), black_box(&queries_mixed)))
+        });
+
+        // hashbrown (SwissTable + foldhash)
+        group.bench_function(format!("hashbrown_hit/{n}"), |b| {
+            b.iter(|| lookup_brown(black_box(&brown_map), black_box(&queries_hit)))
+        });
+        group.bench_function(format!("hashbrown_mixed/{n}"), |b| {
+            b.iter(|| lookup_brown(black_box(&brown_map), black_box(&queries_mixed)))
+        });
+
+        // Vec<(String, u64)>, линейный поиск
+        group.bench_function(format!("vec_linear_hit/{n}"), |b| {
+            b.iter(|| lookup_vec(black_box(&vec_data), black_box(&queries_hit)))
+        });
+        group.bench_function(format!("vec_linear_mixed/{n}"), |b| {
+            b.iter(|| lookup_vec(black_box(&vec_data), black_box(&queries_mixed)))
+        });
+    }
+
+    group.finish();
+}
+
+criterion_group!(benches, bench);
+criterion_main!(benches);
@@ -1,43 +0,0 @@
-use criterion::{black_box, criterion_group, criterion_main, Criterion};
-
-fn bench_split(c: &mut Criterion) {
-    let input = "data_1";
-
-    c.bench_function("split_with_comma", |b| {
-        b.iter(|| {
-            // black_box запрещает компилятору оптимизировать результат
-            black_box(split_with_coma(black_box(input)))
-        })
-    });
-}
-
-fn bench_split_new(c: &mut Criterion) {
-    let input = "data_1";
-
-    c.bench_function("split_with_comma gpt", |b| {
-        b.iter(|| {
-            // black_box запрещает компилятору оптимизировать результат
-            black_box(split_with_coma(black_box(input)))
-        })
-    });
-}
-
-
-pub fn split_with_coma(ts: &str) -> Vec<String> {
-    ts.split(',')
-        .map(|ts| ts.to_lowercase().trim().to_string())
-        .filter(|t| !t.is_empty())
-        .collect::<Vec<String>>()
-}
-
-pub fn new_split_with_coma(ts: &str) -> Vec<String> {
-    ts.split(',')
-        .map(|s| s.trim())               // 0 аллокаций, просто срез
-        .filter(|s| !s.is_empty())       // отбрасываем пустые до аллокации
-        .map(|s| s.to_lowercase())       // 1 аллокация на валидный токен
-        .collect()
-}
-
-// Можно добавить несколько бенчмарков в группу
-criterion_group!(benches, bench_split, bench_split_new);
-criterion_main!(benches);
@@ -1,14 +1,14 @@
-use crate::lang::SetOrderMode;
-use crate::repetitions::CardSetSettings;
+use crate::lang::{DeckSettings, OrderMode};
+
 use rusqlite::Connection;

-pub fn load_sets(connection: &Connection) -> Vec<CardSetSettings> {
+pub fn load_sets(connection: &Connection) -> Vec<DeckSettings> {
    let mut stmt = connection
        .prepare("SELECT id, name, forward, backward, filter FROM card_set")
        .unwrap();
    let iter = stmt
        .query_map([], |row| {
-            Ok(CardSetSettings {
+            Ok(DeckSettings {
                id: row.get(0)?,
                name: row.get(1)?,
                forward: row.get(2)?,
@@ -16,7 +16,7 @@ pub fn load_sets(connection: &Connection) -> Vec<CardSetSettings> {
                filter: row.get(4)?,
                count: None,
                worst_words_list: None,
-                open_mode: SetOrderMode::Default,
+                open_mode: OrderMode::Default,
            })
        })
        .unwrap();
@@ -29,7 +29,7 @@ pub fn load_sets(connection: &Connection) -> Vec<CardSetSettings> {
    buffer
 }

-pub fn add_set(set: &mut CardSetSettings, connection: &Connection) {
+pub fn add_set(set: &mut DeckSettings, connection: &Connection) {
    let index = connection
        .query_row(
            "INSERT INTO card_set (name, forward, backward, filter) VALUES (?1, ?2, ?3, ?4) RETURNING id",
@@ -43,12 +43,12 @@ pub fn add_set(set: &mut CardSetSettings, connection: &Connection) {
        )
        .unwrap_or_else(|e| {println!("{}", e); 0});

-    set.id = index;
+    set.id = index.into();
 }

-pub fn update_card_set(set: &mut CardSetSettings, connection: &Connection) {
-    if set.id == 0 {
-        add_set(set, &connection);
+pub fn update_deck(set: &mut DeckSettings, connection: &Connection) {
+    if !set.id.is_valid() {
+        add_set(set, connection);
    } else {
        connection
            .execute(
@@ -65,8 +65,8 @@ pub fn update_card_set(set: &mut CardSetSettings, connection: &Connection) {
    }
 }

-pub fn delete_set(set: &CardSetSettings, connection: &Connection) {
-    if set.id == 0 {
+pub fn delete_set(set: &DeckSettings, connection: &Connection) {
+    if !set.id.is_valid() {
        return;
    }
    connection
@@ -1,9 +1,8 @@
-use crate::lang::CardStatistics;
-use crate::repetitions::CardSetSettings;
-use rusqlite::Connection;
+use crate::lang::{CardStatistics, DeckSettings};
+use rusqlite::{params, Connection};
 use std::time::Instant;

-pub fn load_stats_of_set(set: &CardSetSettings, connection: &Connection) -> Vec<CardStatistics> {
+pub fn load_stats_of_deck(set: &DeckSettings, connection: &Connection) -> Vec<CardStatistics> {
    let mut stmt = connection
        .prepare("SELECT id, word_id, score, last_opened FROM card_stats WHERE set_id = ?1")
        .unwrap();
@@ -27,66 +26,40 @@ pub fn load_stats_of_set(set: &CardSetSettings, connection: &Connection) -> Vec<
    buffer
 }

-pub fn add_stat_list(stat: &mut Vec<CardStatistics>, connection: &Connection) {
-    let inserting = stat
-        .iter()
-        .map(|stat| {
-            format!(
-                "({}, {}, {}, {})",
-                stat.word_id.to_string(),
-                stat.set_id.to_string(),
-                stat.score.to_string(),
-                stat.last_open.timestamp().to_string()
-            )
-        })
-        .collect::<Vec<_>>()
-        .join(", ");
-    let query = format!(
-        "INSERT INTO card_stats (word_id, set_id, score, last_opened) VALUES {}",
-        inserting
-    );
-    let count = connection.execute(query.as_str(), ());
+pub fn add_stat_list(stats: &mut [CardStatistics], connection: &mut Connection) {
+    let time = Instant::now();
+    let tx = connection.transaction().unwrap();
+    let count = stats.len();

-    if count.is_err() {
-        println!("{}", count.unwrap_err());
-        return;
-    }
-
-    let last_index: u32 = connection
-        .query_one(
-            "SELECT seq from sqlite_sequence WHERE name == ?1",
-            ("card_stats".to_string(),),
-            |row| row.get(0),
+    {
+        let mut stmt = tx
+            .prepare(
+                "INSERT INTO card_stats (word_id, set_id, score, last_opened) VALUES (?1, ?2, ?3, ?4)",
            )
            .unwrap();

-    let start_index = last_index - (count.unwrap() as u32) + 1;
-
-    let mut index = 0;
-    for id in start_index..=last_index {
-        stat[index].id = id;
-        index += 1;
+        for stat in stats.iter() {
+            stmt.execute(params![
+                stat.word_id,
+                stat.set_id,
+                stat.score,
+                stat.last_open.timestamp()
+            ])
+                .unwrap();
        }
    }

-// pub fn add_stat(stat: &mut CardStatistics, connection: &Connection) {
-//     let time = Instant::now();
-//     let index = connection
-//         .query_row(
-//             "INSERT INTO card_stats (word_id, set_id, score, last_opened) VALUES (?1, ?2, ?3, ?4) RETURNING id",
-//             (
-//                 &stat.word_id,
-//                 &stat.set_id,
-//                 &stat.score,
-//                 &stat.last_open.timestamp(),
-//             ),
-//             |row| row.get(0)
-//         )
-//         .unwrap_or_else(|e| {println!("{}", e); 0});
-//
-//     stat.id = index;
-//     println!("Added stat: {}", time.elapsed().as_millis());
-// }
+    let last_index: u32 = tx.last_insert_rowid() as u32;
+    tx.commit().unwrap();
+
+    let start_index = last_index - (count as u32) + 1;
+
+    for (index, id) in (start_index..=last_index).enumerate() {
+        stats[index].id = id.into();
+    }
+
+    println!("Added {} cards for {:?}", stats.len(), time.elapsed());
+}

 pub fn update_stat_score(stat: &CardStatistics, connection: &Connection) {
    let time = Instant::now();
@@ -104,7 +77,7 @@ pub fn update_stat_score(stat: &CardStatistics, connection: &Connection) {
 }

 pub fn delete_stat(stat: &CardStatistics, connection: &Connection) {
-    if stat.id == 0 {
+    if !stat.id.is_valid() {
        return;
    }
    connection
@@ -1,13 +1,13 @@
-use std::fs;
 use crate::dictionary::app_data_dir;
-use crate::lang::WordOpenMode;
+use crate::lang::{Id, WordOpenMode};
 use chrono::{DateTime, Utc};
+use std::fs;
 use std::fs::{File, OpenOptions};
 use std::io::Write;
 use std::io::{BufRead, BufReader};
 use std::path::PathBuf;

-pub fn get_history_of_set(id: u32) -> Vec<HistoryItem> {
+pub fn get_history_of_set(id: Id) -> Vec<HistoryItem> {
    let app_dir = history_dir();
    let head = app_dir.clone().join(format!("set_{}_history.csv", id));
    let mut lines = Vec::new();
@@ -32,7 +32,7 @@ fn parse_history_items(strings: Vec<String>) -> Vec<HistoryItem> {
        if let [time, word, mode, before, after] = string.split(';').collect::<Vec<&str>>()[..] {
            items.push(HistoryItem {
                timestamp: DateTime::from_timestamp(time.parse().unwrap(), 0).unwrap(),
-                word_id: word.parse::<u32>().unwrap(),
+                word_id: word.parse::<Id>().unwrap(),
                mode: match mode.parse::<u8>().unwrap() {
                    2 => WordOpenMode::Hard,
                    3 => WordOpenMode::Ok,
@@ -48,7 +48,7 @@ fn parse_history_items(strings: Vec<String>) -> Vec<HistoryItem> {
    items
 }

-pub fn push_note(set_id: u32, item: HistoryItem) {
+pub fn push_note(set_id: Id, item: HistoryItem) {
    let app_dir = history_dir();
    let path = app_dir.clone().join(format!("set_{}_history.csv", set_id));

@@ -70,7 +70,7 @@ pub fn push_note(set_id: u32, item: HistoryItem) {
        item.before,
        item.after
    );
-    writeln!(&mut file, "{}", line_str.to_string()).unwrap();
+    writeln!(&mut file, "{}", line_str).unwrap();
 }

 pub fn history_dir() -> PathBuf {
@@ -84,7 +84,7 @@ pub fn history_dir() -> PathBuf {
 #[derive(Clone)]
 pub struct HistoryItem {
    pub timestamp: DateTime<Utc>,
-    pub word_id: u32,
+    pub word_id: Id,
    pub mode: WordOpenMode,
    pub before: u8,
    pub after: u8,
@@ -0,0 +1,85 @@
+use hashbrown::HashMap;
+use rusqlite::Connection;
+use serde_json::Value;
+
+#[derive(Clone)]
+pub struct ImportData(pub(crate) Vec<ImportGroup>);
+
+#[derive(Clone, Debug)]
+pub struct ImportGroup {
+    pub id: u64,
+    pub name: String,
+    pub fields: Vec<String>,
+    pub length: u64,
+    pub mapping: HashMap<String, String>,
+    pub imported: bool,
+}
+
+#[derive(Clone)]
+pub struct ImportNote {
+    pub tags: String,
+    pub fields: Vec<String>,
+}
+
+pub fn load_groups(connection: &Connection) -> ImportData {
+    let json_models: String = connection
+        .query_one("select models from col", (), |row| row.get(0))
+        .unwrap();
+    let raw: Value = serde_json::from_str(json_models.as_str()).unwrap();
+    let sets = raw.as_object().unwrap();
+    let mut total_data = ImportData(vec![]);
+
+    let mut count_stmt = connection
+        .prepare("select mid, count(id) from notes group by mid")
+        .unwrap();
+
+    let counts = count_stmt
+        .query_map([], |row| Ok((row.get(0)?, row.get(1)?)))
+        .unwrap()
+        .map(|x| x.unwrap())
+        .collect::<Vec<(i64, i64)>>();
+
+    for (_, collection) in sets {
+        let fields = collection["flds"]
+            .as_array()
+            .unwrap()
+            .iter()
+            .map(|x| x["name"].as_str().unwrap().to_string())
+            .collect();
+        let mut group = ImportGroup {
+            id: collection["id"].as_u64().unwrap(),
+            name: collection["name"].as_str().unwrap().to_string(),
+            fields,
+            mapping: Default::default(),
+            length: 0,
+            imported: false,
+        };
+        if let Some((_, count)) = counts.iter().find(|(id, _)| *id == group.id as i64) {
+            group.length = *count as u64
+        }
+        println!("{:?}", group);
+        total_data.0.push(group);
+    }
+    total_data
+}
+
+pub fn get_words_of_group(connection: &Connection, group_id: u64) -> Vec<ImportNote> {
+    let mut count_stmt = connection
+        .prepare("select tags, flds from notes where mid == ?1;")
+        .unwrap();
+
+    count_stmt
+        .query_map((group_id as i64,), |row| {
+            Ok(ImportNote {
+                tags: row.get(0)?,
+                fields: row
+                    .get::<usize, String>(1)?
+                    .split('')
+                    .map(|x| x.to_string())
+                    .collect(),
+            })
+        })
+        .unwrap()
+        .map(|x| x.unwrap())
+        .collect::<Vec<ImportNote>>()
+}
@@ -1,8 +1,9 @@
 pub(crate) mod card_sets;
 pub(crate) mod card_stats;
 pub(crate) mod history;
+pub(crate) mod import;
 pub(crate) mod settings;
 pub(crate) mod sqlite;
 pub(crate) mod voice;
-pub(crate) mod words;
 pub(crate) mod web_api;
+pub(crate) mod words;
@@ -4,14 +4,14 @@ pub fn get_setting(key: String, connection: &Connection) -> Option<String> {
    let mut stmt = connection
        .prepare("SELECT value FROM settings WHERE id = ?1")
        .unwrap();
-    let iter = stmt.query_map((key,), |row| row.get(0)).unwrap();
+    let mut iter = stmt.query_map((key,), |row| row.get(0)).unwrap();

-    for row in iter {
-        if let Ok(value) = row {
+    if let Some(row) = iter.next()
+        && let Ok(value) = row
+    {
        return Some(value);
    }
-        return None;
-    }
+
    None
 }

@@ -2,7 +2,7 @@ use crate::dictionary::app_data_dir;
 use std::io;
 use tokio::fs::{File, OpenOptions};
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
-use zstd::{Decoder, Encoder, DEFAULT_COMPRESSION_LEVEL};
+use zstd::{DEFAULT_COMPRESSION_LEVEL, Decoder, Encoder};

 // const API_URL: &str = "http://127.0.0.1:8089/";
 const API_URL: &str = "https://learning.micialware.ru/";
@@ -17,15 +17,22 @@ pub async fn send_data(id: String) {
    let id_url = format!("{api_url}upload/stream/{id}");

    let client = reqwest::Client::new();
-    let new_version = client.post(&id_url).body(data).send().await.unwrap().text().await.unwrap();
+    let new_version = client
+        .post(&id_url)
+        .body(data)
+        .send()
+        .await
+        .unwrap()
+        .text()
+        .await
+        .unwrap();
    set_local_version(new_version.parse::<u32>().unwrap()).await;
 }

 fn compress(data: Vec<u8>) -> Vec<u8> {
    let mut encoder = Encoder::new(Vec::new(), DEFAULT_COMPRESSION_LEVEL).unwrap();
    io::copy(&mut &data[..], &mut encoder).unwrap();
-    let compressed = encoder.finish().unwrap();
-    compressed
+    encoder.finish().unwrap()
 }

 pub async fn load_data(id: String, temp: bool) {
@@ -50,7 +57,14 @@ pub async fn load_data(id: String, temp: bool) {
    tokio::fs::write(db_file, data).await.unwrap();

    let version_url = format!("{API_URL}{id}/version");
-    let version = client.get(&version_url).send().await.unwrap().text().await.unwrap();
+    let version = client
+        .get(&version_url)
+        .send()
+        .await
+        .unwrap()
+        .text()
+        .await
+        .unwrap();
    set_local_version(version.parse::<u32>().unwrap()).await;
 }

@@ -84,25 +98,44 @@ pub async fn get_web_version(key: &str) -> Result<u32, reqwest::Error> {
    let id_url = format!("{API_URL}{key}/version");
    let client = reqwest::Client::new();
    let version = client.get(&id_url).send().await?.text().await?;
-    return Ok(version.parse::<u32>().unwrap());
+    println!("version: {}", version);
+    Ok(version.parse::<u32>().unwrap_or_default())
 }

 pub async fn get_local_version() -> u32 {
    let file = app_data_dir().join("data.meta");
    if file.exists() {
        let mut data = String::new();
-        File::open(file.clone()).await.unwrap().read_to_string(&mut data).await.unwrap();
+        File::open(file.clone())
+            .await
+            .unwrap()
+            .read_to_string(&mut data)
+            .await
+            .unwrap();
        return data.parse::<u32>().unwrap();
    }

-    let mut file = OpenOptions::new().write(true).create(true).open(file).await.unwrap();
+    let mut file = OpenOptions::new()
+        .write(true)
+        .create(true)
+        .truncate(true)
+        .open(file)
+        .await
+        .unwrap();
    file.write_all("0".as_bytes()).await.unwrap();
    0
 }

 pub async fn set_local_version(version: u32) {
    let file_path = app_data_dir().join("data.meta");
-    let mut file = OpenOptions::new().write(true).create(true).truncate(true).open(file_path).await.unwrap();
-    file.write_all(version.to_string().as_bytes()).await.unwrap();
+    let mut file = OpenOptions::new()
+        .write(true)
+        .create(true)
+        .truncate(true)
+        .open(file_path)
+        .await
+        .unwrap();
+    file.write_all(version.to_string().as_bytes())
+        .await
+        .unwrap();
 }
-
@@ -1,12 +1,11 @@
 use crate::lang::{WordData, WordGroup};
-use rusqlite::Connection;
+use rusqlite::{params, Connection};
 use std::collections::HashMap;

 pub fn add_word(word: &mut WordData, connection: &Connection) {
    let index = connection
        .query_row(
-            "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5\
-            ) RETURNING id",
+            "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5) RETURNING id",
            (
                &word.key,
                &word.value,
@@ -21,12 +20,46 @@ pub fn add_word(word: &mut WordData, connection: &Connection) {
            0
        });

-    word.id = index;
+    word.id = index.into();
+}
+
+pub fn add_words(words: &mut [WordData], connection: &mut Connection) {
+    let tx = connection.transaction().unwrap();
+    let count = words.len();
+
+    {
+        let mut stmt = tx
+            .prepare(
+                "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5)",
+            )
+            .unwrap();
+
+        for word in words.iter() {
+            stmt.execute(params![
+                word.key,
+                word.value,
+                word.tags,
+                serde_json::to_string(&word.additional).unwrap(),
+                word.group_id
+            ])
+            .unwrap();
+        }
+    }
+
+    let last_index: u32 = tx.last_insert_rowid() as u32;
+    tx.commit().unwrap();
+
+
+    let start_index = last_index - (count as u32) + 1;
+
+    for (index, id) in (start_index..=last_index).enumerate() {
+        words[index].id = id.into();
+    }
 }

 pub fn update_word(word: &mut WordData, connection: &Connection) {
-    if word.id == 0 {
-        add_word(word, &connection);
+    if !word.id.is_valid() {
+        add_word(word, connection);
    } else {
        connection
            .execute(
@@ -47,7 +80,7 @@ pub fn update_word(word: &mut WordData, connection: &Connection) {
 }

 pub fn delete_word(word: &WordData, connection: &Connection) {
-    if word.id == 0 {
+    if !word.id.is_valid() {
        return;
    }
    connection
@@ -117,16 +150,16 @@ pub fn add_group(group: &mut WordGroup, connection: &Connection) {
            0
        });

-    group.id = index;
+    group.id = index.into();
 }

 pub fn update_group(group: &mut WordGroup, connection: &Connection) {
-    if group.id == 0 {
-        add_group(group, &connection);
+    if !group.id.is_valid() {
+        add_group(group, connection);
    } else {
        connection
            .execute(
-                "UPDATE word_group SET name = ?1 WHERE id = ?5",
+                "UPDATE word_group SET name = ?1 WHERE id = ?2",
                (&group.name, &group.id),
            )
            .unwrap_or_else(|e| {
@@ -137,7 +170,7 @@ pub fn update_group(group: &mut WordGroup, connection: &Connection) {
 }

 pub fn delete_group(group: &WordGroup, connection: &Connection) {
-    if group.id == 0 {
+    if !group.id.is_valid() {
        return;
    }
    connection
@@ -1,22 +1,24 @@
 use crate::data_provider::words::{delete_group, delete_word, update_group, update_word};
 use crate::dictionary::DictionaryMessage::*;
 use crate::dictionary_test::DictionaryQuizState;
+use crate::import::ImportState;
 use crate::lang::{WordData, WordGroup};
-use crate::navigation::Page::Word;
+use crate::navigation::Page::{Import, Word};
 use crate::navigation::{NavigatedPage, Page};
 use crate::styling::*;
 use crate::word::WordState;
 use crate::{AppState, RootMessage};
 use chrono::{DateTime, TimeDelta, Utc};
+use hashbrown::{HashMap, HashSet};
 use iced::alignment::Vertical::Center;
 use iced::widget::button::Style;
 use iced::widget::button::{danger, text};
 use iced::widget::space::horizontal;
 use iced::widget::text_input::default;
 use iced::widget::*;
-use iced::{Border, Color, Length, Shadow, Task};
+use iced::{Border, Color, Shadow, Task};
+use iced_core::Length::Fill;
 use rand::random_range;
-use std::collections::{HashMap, HashSet};
 use std::fs;
 use std::ops::Add;
 use std::path::PathBuf;
@@ -59,15 +61,17 @@ pub enum DictionaryMessage {
    DeleteGroup,
    ChangeDirection,
    TrySave(usize),
+    ToImport,
 }

 impl NavigatedPage<DictionaryMessage> for DictionaryState {
-    fn navigate(&self, message: &DictionaryMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &DictionaryMessage) -> Option<Page> {
        if let Back = message {
            return Some(Page::PreviousPage);
        }
-        if let Test = message {
-            if self.include_map.iter().any(|x| *x) {
+        if let Test = message
+            && self.include_map.iter().any(|x| *x)
+        {
            let mut words = vec![];
            let dict = &self.state.lock().unwrap().dictionary;

@@ -85,7 +89,6 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                self.no_typing,
            )));
        }
-        }
        if let WordAction(index) = message {
            let word: WordData;
            {
@@ -93,44 +96,30 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                let dict = &state.dictionary;
                word = dict[*index].clone();
            }
-            if word.id != 0 {
+            if word.id.is_valid() {
                return Some(Word(WordState::new(word, *index, self.state.clone())));
            }
        }
+        if let ToImport = message {
+            return Some(Import(ImportState::new(self.state.clone())));
+        }
        None
    }

    fn navigated(&mut self) {
-    }
+        let len = self.state.lock().unwrap().dictionary.len();
+
+        self.include_map = vec![false; len];
+        self.tag_map = Default::default();
+        self.update_tags();
    }

-impl DictionaryState {
-    pub fn new(state: Arc<Mutex<AppState>>) -> Self {
-        let len = state.lock().unwrap().dictionary.len();
-
-        let mut result = DictionaryState {
-            include_map: vec![false; len],
-            selected_group_index: 0,
-            state,
-            tag_map: HashMap::new(),
-            reverse: false,
-            search: "".to_string(),
-            no_typing: true,
-            reverse_list: true,
-            auto_save_queue: HashMap::new(),
-        };
-
-        result.update_tags();
-
-        result
-    }
-
-    pub fn update(&mut self, message: DictionaryMessage) -> Task<RootMessage> {
+    fn update(&mut self, message: DictionaryMessage) -> Task<RootMessage> {
        match message {
            NewWord => {
                let mut state = self.state.lock().unwrap();
                let mut word = WordData::new();
-                word.group_id = state.word_groups[self.selected_group_index].id.clone();
+                word.group_id = state.word_groups[self.selected_group_index].id;

                let dict = &mut state.dictionary;
                dict.push(word);
@@ -161,12 +150,11 @@ impl DictionaryState {
                        v = v[..v.len() - 2].to_string()
                    }

-                    while v.contains(",,") {
-                        let index = v.find(",,").unwrap();
+                    while let Some(index) = v.find(",,") {
                        v.remove(index);
                    }

-                    dict.get_mut(i).unwrap().tags = v;
+                    dict[i].tags = v;
                }

                self.update_tags();
@@ -183,7 +171,7 @@ impl DictionaryState {
            }
            Include(i, b) => self.include_map[i] = b,
            IncludeTag(t, v) => {
-                let index: u32;
+                let index;
                {
                    let state = self.state.lock().unwrap();
                    index = state.word_groups[self.selected_group_index].id;
@@ -208,7 +196,7 @@ impl DictionaryState {
                let state = &mut self.state.lock().unwrap();

                state.word_groups.push(WordGroup {
-                    id: 0,
+                    id: 0.into(),
                    name: format!("Группа слов {}", random_range(100..1000)),
                });
            }
@@ -222,18 +210,16 @@ impl DictionaryState {
            SaveGroup => {
                let state = &mut self.state.lock().unwrap();
                let connection = &state.connection;
-                let group = &mut state
-                    .word_groups
-                    .get(self.selected_group_index)
-                    .unwrap()
+                let mut group = state
+                    .word_groups[self.selected_group_index]
                    .clone();

-                update_group(group, connection);
-                state.word_groups[self.selected_group_index] = group.clone();
+                update_group(&mut group, connection);
+                state.word_groups[self.selected_group_index] = group;
            }
            SelectGroup(i) => {
                self.selected_group_index = i;
-                let index: u32;
+                let index;
                {
                    let state = self.state.lock().unwrap();
                    index = state.word_groups[i].id;
@@ -244,16 +230,24 @@ impl DictionaryState {
                if self.selected_group_index == 0 {
                    return Task::none();
                }
+                {
                    let state = &mut self.state.lock().unwrap();

                    if let Some(group) = state.word_groups.get(self.selected_group_index) {
+                        let remove_group_id = group.id;
                        let connection = &state.connection;

                        delete_group(group, connection);
                        state.word_groups.remove(self.selected_group_index);
+                        state
+                            .dictionary
+                            .retain(|word| word.group_id != remove_group_id);
                        self.selected_group_index = 0;
                    }
                }
+
+                self.update_tags()
+            }
            ChangeDirection => {
                self.reverse_list = !self.reverse_list;
            }
@@ -267,17 +261,61 @@ impl DictionaryState {
                    self.save_word(word_index);
                }
            }
+            ToImport => {}
        }

        Task::none()
    }

+    fn view(&self) -> iced::Element<'_, DictionaryMessage> {
+        back_overlay(
+            row![
+                iced::widget::column![
+                    self.groups_panel(),
+                    row![horizontal().width(8), self.words_list(),],
+                    row![
+                        button("Добавить слово").style(jl_button).on_press(NewWord),
+                        horizontal().width(Fill),
+                        button("Импорт").style(text).on_press(ToImport),
+                    ]
+                ]
+                .spacing(5),
+                self.filters(),
+            ]
+            .spacing(DEFAULT_SPACING)
+            .into(),
+            Back,
+        )
+    }
+}
+
+impl DictionaryState {
+    pub fn new(state: Arc<Mutex<AppState>>) -> Self {
+        let len = state.lock().unwrap().dictionary.len();
+
+        let mut result = DictionaryState {
+            include_map: vec![false; len],
+            selected_group_index: 0,
+            state,
+            tag_map: HashMap::new(),
+            reverse: false,
+            search: "".to_string(),
+            no_typing: true,
+            reverse_list: true,
+            auto_save_queue: HashMap::new(),
+        };
+
+        result.update_tags();
+
+        result
+    }
+
    fn save_word(&mut self, i: usize) {
        let state = &mut self.state.lock().unwrap();
        let connection = &state.connection;
-        let word = &mut state.dictionary.get(i).unwrap().clone();
+        let word = &mut state.dictionary[i].clone();

-        update_word(word, &connection);
+        update_word(word, connection);
        state.dictionary[i] = word.clone();
    }

@@ -291,50 +329,32 @@ impl DictionaryState {
        )
    }

-    pub fn view(&self) -> iced::Element<'_, DictionaryMessage> {
-        back_overlay(
-            row![
-                iced::widget::column![
-                    self.groups_panel(),
-                    row![horizontal().width(8), self.words_list(),],
-                    button("Добавить слово").style(jl_button).on_press(NewWord),
-                ]
-                .spacing(5),
-                self.filters(),
-            ]
-            .spacing(DEFAULT_SPACING)
-            .into(),
-            Back,
-        )
-    }
-
    fn words_list(&self) -> iced::Element<'_, DictionaryMessage> {
        let time = Instant::now();
-        let mut col = Column::new().width(Length::Fill);
+        let mut col = Column::new().width(Fill);

-        let mut range = (0..self.include_map.len()).collect::<Vec<_>>();
        let state = self.state.lock().unwrap();
        let group_id = state.word_groups[self.selected_group_index].id;
-        let dict = &mut state.dictionary.clone();

+        let dict = &state.dictionary;
+
+        let mut index = 0;
+
+        for access_index in 0..dict.len() {
+            let mut i = access_index;
            if self.reverse_list {
-            dict.reverse()
-        } else {
-            range = range.iter().rev().map(|x| *x).collect::<Vec<usize>>();
+                i = dict.len() - access_index - 1;
            }
-
-        for word in dict {
-            let i = range.pop().unwrap();
-            if !self.search.is_empty() {
-                if word.key.contains(&self.search) == false
-                    && word.value.contains(&self.search) == false
-                    && word.tags.contains(&self.search) == false
-                {
+            let word = &dict[i];
+            if word.group_id != group_id {
                continue;
            }
-            }

-            if word.group_id != group_id {
+            if !self.search.is_empty()
+                && !word.key.contains(&self.search)
+                && !word.value.contains(&self.search)
+                && !word.tags.contains(&self.search)
+            {
                continue;
            }

@@ -344,12 +364,14 @@ impl DictionaryState {
                value: word.value.clone(),
                tags: word.tags.clone(),
                id: word.id,
-                index: i
+                index: i,
            };

+            index += 1;
+
            let lazy_line = lazy(word_line_data, move |data| {
                let index = data.index;
-                let mut line = Row::new().width(Length::Fill).align_y(Center);
+                let mut line = Row::new().width(Fill).align_y(Center);
                line = line.push(
                    checkbox(data.is_included)
                        .label("")
@@ -360,7 +382,7 @@ impl DictionaryState {
                line = line.push(
                    text_input("Слово", &data.key)
                        .size(ACCENT_FONT_SIZE)
-                        .width(Length::Fill)
+                        .width(Fill)
                        .on_input(move |string| SetKey(index, string))
                        .on_submit(SubmitWord(index))
                        .style(|x, status| {
@@ -372,7 +394,7 @@ impl DictionaryState {
                line = line.push(
                    text_input("Перевод", &data.value)
                        .size(ACCENT_FONT_SIZE)
-                        .width(Length::Fill)
+                        .width(Fill)
                        .on_input(move |string| SetValue(index, string))
                        .on_submit(SubmitWord(index))
                        .style(|x, status| {
@@ -385,7 +407,7 @@ impl DictionaryState {
                line = line.push(
                    text_input("Теги", &data.tags)
                        .size(ACCENT_FONT_SIZE)
-                        .width(Length::Fill)
+                        .width(Fill)
                        .on_input(move |string| SetTags(index, string))
                        .on_submit(SubmitWord(index))
                        .style(|x, status| {
@@ -398,7 +420,7 @@ impl DictionaryState {
                let line_button = || {
                    let action = WordAction(index);

-                    if data.id == 0 {
+                    if !data.id.is_valid() {
                        return button("-").on_press(action).style(|_x, _status| Style {
                            background: None,
                            text_color: Color::BLACK,
@@ -414,14 +436,12 @@ impl DictionaryState {
                line
            });

-
-
-
            col = col.push(lazy_line);
        }

+        println!("Drawing {index} lines");
        println!("Words rendering time: {:?}", time.elapsed());
-        scrollable(col).height(Length::Fill).into()
+        scrollable(col).height(Fill).into()
    }

    fn filters(&self) -> iced::Element<'_, DictionaryMessage> {
@@ -430,7 +450,7 @@ impl DictionaryState {
        iced::widget::column![
            text_input("Поиск", &self.search)
                .on_input(Search)
-                .width(Length::Fill),
+                .width(Fill),
            text!("Всего слов: {}", dict.len()),
            text!(
                "Выбрано слов: {}",
@@ -443,10 +463,10 @@ impl DictionaryState {
            toggler(self.reverse)
                .label("Обратный тест")
                .on_toggle(SetReverse),
-            button(text!("Тест").center().width(Length::Fill))
+            button(text!("Тест").center().width(Fill))
                .style(cta_button)
                .on_press(Test)
-                .width(Length::Fill),
+                .width(Fill),
        ]
        .width(250)
        .spacing(DEFAULT_SPACING)
@@ -454,7 +474,7 @@ impl DictionaryState {
    }

    fn tags_selector(&self) -> iced::Element<'_, DictionaryMessage> {
-        let mut col = Column::new().width(Length::Fill);
+        let mut col = Column::new().width(Fill);
        col = col.push(
            button("Сбросить")
                .on_press(ResetTags)
@@ -476,7 +496,7 @@ impl DictionaryState {
            )
        }

-        container(scrollable(col)).height(Length::Fill).into()
+        container(scrollable(col)).height(Fill).into()
    }

    fn update_tags(&mut self) {
@@ -509,7 +529,7 @@ impl DictionaryState {
        });
    }

-    fn update_words_include(&mut self, group_id: u32) {
+    fn update_words_include(&mut self, group_id: crate::lang::Id) {
        let include_tags = self
            .tag_map
            .iter()
@@ -529,7 +549,9 @@ impl DictionaryState {
            .iter()
            .map(|word| (split_with_coma(word.tags.as_str()), word.group_id))
            .map(|(tags, word_group_id)| {
-                tags.iter().all(|t| include_tags.contains(t)) && word_group_id == group_id
+                !tags.is_empty()
+                    && tags.iter().all(|t| include_tags.contains(t))
+                    && word_group_id == group_id
            })
            .collect();

@@ -543,20 +565,18 @@ impl DictionaryState {
        let state = &self.state.lock().unwrap();
        let groups = &state.word_groups;

-        let mut index = 0;
-        for group in groups {
+        for (index, group) in groups.iter().enumerate() {
            row = row.push(
                button(text!("{}", group.name.clone()))
                    .style(text)
                    .on_press(SelectGroup(index)),
            );
-            index = index + 1;
        }

        let group = state.word_groups[self.selected_group_index].clone();

        iced::widget::column![
-            scrollable(row).width(Length::Fill).horizontal(),
+            scrollable(row).width(Fill).horizontal(),
            row![
                button("⇳").on_press(ChangeDirection).style(jl_button),
                text_input("Название группы слов", &group.name)
@@ -564,12 +584,20 @@ impl DictionaryState {
                    .width(250)
                    .on_submit(SaveGroup),
                horizontal(),
-                button("Удалить").style(danger).on_press(DeleteGroup),
+                self.group_delete_button(),
            ]
            .spacing(DEFAULT_SPACING / 2.0)
        ]
        .into()
    }
+
+    fn group_delete_button(&self) -> iced::Element<'_, DictionaryMessage> {
+        if self.selected_group_index != 0 {
+            button("Удалить").style(danger).on_press(DeleteGroup).into()
+        } else {
+            space().into()
+        }
+    }
 }

 pub fn split_with_coma(ts: &str) -> Vec<String> {
@@ -583,7 +611,7 @@ pub fn app_data_dir() -> PathBuf {
    let mut dir = dirs::data_dir().unwrap();
    dir.push("jap_learn");
    if !dir.exists() {
-        fs::create_dir(dir.clone()).unwrap();
+        fs::create_dir_all(dir.clone()).unwrap();
    }

    dir
@@ -595,6 +623,6 @@ struct WordLineState{
    key: String,
    value: String,
    tags: String,
-    id: u32,
+    id: crate::lang::Id,
    index: usize,
 }
@@ -1,3 +1,4 @@
+use crate::RootMessage;
 use crate::dictionary::split_with_coma;
 use crate::dictionary_test::DictionaryQuizMessage::*;
 use crate::lang::WordData;
@@ -5,12 +6,11 @@ use crate::navigation::Page::PreviousPage;
 use crate::navigation::*;
 use crate::quiz::Score;
 use crate::styling::*;
-use crate::RootMessage;
+use iced::Background::Color;
 use iced::border::Radius;
 use iced::widget::container::Style;
-use iced::widget::{button, container, row, space, text, text_input, Row};
-use iced::Background::Color;
-use iced::{alignment, Border, Element, Fill, Task, Theme};
+use iced::widget::{Row, button, container, row, space, text, text_input};
+use iced::{Border, Element, Fill, Task, Theme, alignment};
 use rand::prelude::SliceRandom;

 #[derive(Debug, Clone)]
@@ -35,34 +35,16 @@ pub enum DictionaryQuizMessage {
 }

 impl NavigatedPage<DictionaryQuizMessage> for DictionaryQuizState {
-    fn navigate(&self, message: &DictionaryQuizMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &DictionaryQuizMessage) -> Option<Page> {
        match message {
            Back => Some(PreviousPage),
            _ => None,
        }
    }

-    fn navigated(&mut self) {
-    }
-}
+    fn navigated(&mut self) {}

-impl DictionaryQuizState {
-    pub fn new(words: Vec<WordData>, reverse: bool, no_typing: bool) -> DictionaryQuizState {
-        DictionaryQuizState {
-            words,
-            current_set: Vec::new(),
-            answer: "".to_string(),
-            view: "---".to_string(),
-            correct: "".to_string(),
-            score: Default::default(),
-            is_help: false,
-            reverse,
-            laps: 0,
-            no_typing,
-        }
-    }
-
-    pub fn update(&mut self, message: DictionaryQuizMessage) -> Task<RootMessage> {
+    fn update(&mut self, message: DictionaryQuizMessage) -> Task<RootMessage> {
        match message {
            Back => {}
            AnswerChanged(c) => self.answer = c.clone(),
@@ -72,7 +54,7 @@ impl DictionaryQuizState {
        Task::none()
    }

-    pub fn view(&self) -> Element<'_, DictionaryQuizMessage> {
+    fn view(&self) -> Element<'_, DictionaryQuizMessage> {
        container(
            iced::widget::column![
                self.laps(),
@@ -119,6 +101,24 @@ impl DictionaryQuizState {
        .center_x(Fill)
        .into()
    }
+}
+
+impl DictionaryQuizState {
+    pub fn new(words: Vec<WordData>, reverse: bool, no_typing: bool) -> DictionaryQuizState {
+        DictionaryQuizState {
+            words,
+            current_set: Vec::new(),
+            answer: "".to_string(),
+            view: "---".to_string(),
+            correct: "".to_string(),
+            score: Default::default(),
+            is_help: false,
+            reverse,
+            laps: 0,
+            no_typing,
+        }
+    }
+
    fn submit(&mut self) {
        if self.view == "---" {
            self.show_next();
@@ -149,7 +149,7 @@ impl DictionaryQuizState {
        if self.answer == self.correct
            || split_with_coma(self.correct.as_str()).contains(&self.answer)
        {
-            if self.is_help == false {
+            if !self.is_help {
                self.score.correct += 1;
            }
            self.show_next()
@@ -171,11 +171,17 @@ impl DictionaryQuizState {
        self.is_help = false;
        self.answer = String::new();

-        if self.current_set.is_empty() {
-            self.update_set();
+        let next : WordData =
+        match self.current_set.pop() {
+            Some(word) => {
+                word
            }
+            None => {
+                self.update_set();
+                 self.current_set.pop().expect("Empty set")
+            }
+        };

-        let next = self.current_set.pop().unwrap();
        if self.reverse {
            self.view = next.value.clone();
            self.correct = next.key.clone();
@@ -206,7 +212,7 @@ impl DictionaryQuizState {
    }

    fn appeal_button(&self) -> Element<'_, DictionaryQuizMessage> {
-        if self.is_help && self.no_typing == false {
+        if self.is_help && !self.no_typing {
            return button("Апелляция").style(jl_button).on_press(Appeal).into();
        }
        space().into()
@@ -18,17 +18,35 @@ pub struct HistoryState {
 }

 impl NavigatedPage<HistoryMessage> for HistoryState {
-    fn navigate(&self, message: &HistoryMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &HistoryMessage) -> Option<Page> {
        match message {
            Back => Some(Page::PreviousPage),
        }
    }
-    fn navigated(&mut self) {
+    fn navigated(&mut self) {}
+    fn update(&mut self, _: HistoryMessage) -> Task<RootMessage> {
+        Task::none()
+    }
+
+    fn view(&self) -> Element<'_, HistoryMessage> {
+        back_overlay(
+            iced::widget::row![
+                horizontal().width(FillPortion(1)),
+                scrollable(self.history_lines().padding(DEFAULT_SPACING))
+                    .height(Fill)
+                    .width(FillPortion(5)),
+                horizontal().width(FillPortion(1))
+            ]
+            .height(Fill)
+            .width(Fill)
+            .into(),
+            Back,
+        )
    }
 }

 impl HistoryState {
-    pub fn new(id: u32, state: Arc<Mutex<AppState>>) -> Self {
+    pub fn new(id: crate::lang::Id, state: Arc<Mutex<AppState>>) -> Self {
        let state = state.lock().unwrap();
        let history = get_history_of_set(id);
        let words = history
@@ -49,26 +67,6 @@ impl HistoryState {
        }
    }

-    pub fn update(&mut self, _: HistoryMessage) -> Task<RootMessage> {
-        Task::none()
-    }
-
-    pub fn view(&self) -> Element<'_, HistoryMessage> {
-        back_overlay(
-            iced::widget::row![
-                horizontal().width(FillPortion(1)),
-                scrollable(self.history_lines().padding(DEFAULT_SPACING))
-                    .height(Fill)
-                    .width(FillPortion(5)),
-                horizontal().width(FillPortion(1))
-            ]
-            .height(Fill)
-            .width(Fill)
-            .into(),
-            Back,
-        )
-    }
-
    fn history_lines(&self) -> Column<'_, HistoryMessage> {
        let mut column = Column::new();
        for (item, index) in self.list.iter().zip(0..self.list.len()) {
@@ -85,11 +83,13 @@ impl HistoryState {
                    .align_x(Center),
                    iced::widget::column![
                        text!("{} ➞ {}", item.before, item.after),
-                        text!("{}",  item.timestamp.with_timezone(&Local).format("%d.%m %H:%M"))
+                        text!(
+                            "{}",
+                            item.timestamp.with_timezone(&Local).format("%d.%m %H:%M")
+                        )
                    ]
                    .spacing(5)
                    .align_x(Center)
-
                ]
                .spacing(5),
            );
@@ -0,0 +1,552 @@
+use crate::data_provider::import::{get_words_of_group, load_groups, ImportData, ImportGroup};
+use crate::data_provider::words::{add_group, add_words};
+use crate::dictionary::app_data_dir;
+use crate::import::ImportMessage::*;
+use crate::lang::{WordData, WordGroup};
+use crate::navigation::{NavigatedPage, Page, RootMessage};
+use crate::styling::*;
+use crate::AppState;
+use iced::widget::button::danger;
+use iced::widget::container::success;
+use iced::widget::{
+    button, checkbox, column, container, progress_bar, row, rule, text, text_input, Row,
+};
+use iced::widget::{scrollable, space};
+use iced::{Element, Task};
+use iced_core::Alignment::Center;
+use iced_core::Length::Fill;
+use iced_core::Padding;
+use rfd::AsyncFileDialog;
+use rusqlite::Connection;
+use std::fs::{File, OpenOptions};
+use std::io::BufReader;
+use std::path::PathBuf;
+use std::sync::{Arc, Mutex};
+use tokio::task::spawn_blocking;
+use zip::ZipArchive;
+
+const DEFAULT_FIELDS: [&str; 6] = ["key", "value", "tags", "reading", "context", "description"];
+
+#[derive(Clone)]
+pub struct ImportState {
+    state: Arc<Mutex<AppState>>,
+    path: Option<PathBuf>,
+    import_data: Option<ImportData>,
+    selected_index: usize,
+    selected_property: Option<String>,
+    custom_property_name: String,
+    skip_empty: bool,
+    separator: String,
+    progress: Option<Arc<Mutex<f32>>>,
+}
+
+#[derive(Clone)]
+pub enum ImportMessage {
+    Back,
+    SelectFile,
+    UpdateFile(PathBuf),
+    UpdateImport(ImportData),
+    NextGroup,
+    PreviousGroup,
+    OpenPropertyMapper(String),
+    EditCustomProperty(String),
+    SetupCustomProperty,
+    SetupDefaultProperty(String),
+    SetupDirect,
+    RemoveMapping(String),
+    SwitchSkipEmpty(bool),
+    EditSeparator(String),
+    StartImport,
+    NextProgress,
+    ImportFinished,
+}
+
+impl NavigatedPage<ImportMessage> for ImportState {
+    fn navigate(&mut self, message: &ImportMessage) -> Option<Page> {
+        if self.progress.is_some() {
+            return None;
+        }
+
+        if let Back = message {
+            return Some(Page::PreviousPage);
+        }
+        None
+    }
+
+    fn navigated(&mut self) {}
+
+    fn update(&mut self, message: ImportMessage) -> Task<RootMessage> {
+        match message {
+            Back => {}
+            UpdateFile(path) => {
+                self.path = Some(path);
+                self.import_data = None;
+                return self.load_package();
+            }
+            SelectFile => return Self::select_import_file(),
+            UpdateImport(import) => {
+                self.selected_index = 0;
+                self.import_data = Some(import);
+            }
+            NextGroup => {
+                self.selected_index += 1;
+                self.selected_property = None;
+                self.custom_property_name.clear();
+            }
+            PreviousGroup => {
+                self.selected_index -= 1;
+                self.selected_property = None;
+                self.custom_property_name.clear();
+            }
+            OpenPropertyMapper(prop) => self.selected_property = Some(prop),
+            EditCustomProperty(prop_name) => self.custom_property_name = prop_name,
+            SetupCustomProperty => {
+                self.setup_mapping(self.custom_property_name.clone());
+            }
+            SetupDefaultProperty(prop_name) => {
+                self.setup_mapping(prop_name);
+            }
+            SetupDirect => {
+                self.setup_mapping(self.selected_property.clone().unwrap());
+            }
+            RemoveMapping(pro_name) => {
+                self.remove_mapping(pro_name);
+            }
+            SwitchSkipEmpty(skip) => {
+                self.skip_empty = skip;
+            }
+            EditSeparator(separator) => {
+                self.separator = separator.clone();
+            }
+            StartImport => {
+                self.progress = Some(Arc::new(Mutex::new(0.0)));
+                return Task::batch([self.start_import(), self.next_progress()]);
+            }
+            NextProgress => {
+                if self.progress.is_none() {
+                    return Task::none();
+                }
+                return self.next_progress();
+            }
+            ImportFinished => {
+                self.progress = None;
+                let group = &mut self.import_data.as_mut().unwrap().0[self.selected_index];
+                group.imported = true;
+            }
+        }
+        Task::none()
+    }
+
+    fn view(&self) -> Element<'_, ImportMessage> {
+        back_overlay(
+            {
+                if let Some(value) = &self.progress {
+                    column![progress_bar(0f32..=1f32, *value.lock().unwrap()),]
+                        .spacing(QUARTER_SPACING)
+                        .into()
+                } else {
+                    scrollable(
+                        column![
+                            row![
+                                button("Выбрать файл").style(jl_button).on_press(SelectFile),
+                                text!("{}", {
+                                    if let Some(path) = &self.path {
+                                        path.to_string_lossy().to_string()
+                                    } else {
+                                        "Файл не выбран".to_string()
+                                    }
+                                })
+                            ]
+                            .align_y(Center)
+                            .spacing(DEFAULT_SPACING),
+                            self.selected_group()
+                        ]
+                        .spacing(DEFAULT_SPACING),
+                    )
+                    .into()
+                }
+            },
+            Back,
+        )
+    }
+}
+
+impl ImportState {
+    fn selected_group(&self) -> Element<'_, ImportMessage> {
+        if let Some(data) = &self.import_data {
+            let group = &data.0[self.selected_index];
+            return column![
+                row![
+                    self.back_button(),
+                    space().width(Fill),
+                    text!("{}", group.name.clone()),
+                    space().width(Fill),
+                    self.next_button()
+                ]
+                .width(Fill),
+                text!("Количество карточек: {}", group.length),
+                self.property_mapper(group),
+                self.import_settings(),
+                self.import_button(group),
+            ]
+            .spacing(DEFAULT_SPACING)
+            .into();
+        }
+        space().into()
+    }
+
+    fn import_button(&self, group: &ImportGroup) -> Element<'_, ImportMessage> {
+        if group.imported {
+            return container(text!("Группа слов успешно импортирована"))
+                .padding(HALF_SPACING)
+                .align_x(Center)
+                .style(success)
+                .width(Fill)
+                .into();
+        }
+        button("Начать импорт")
+            .style(cta_button)
+            .on_press(StartImport)
+            .into()
+    }
+
+    fn property_mapper(&self, group: &ImportGroup) -> Element<'_, ImportMessage> {
+        column![
+            self.property_list(group),
+            rule::horizontal(2),
+            self.property_selector()
+        ]
+        .spacing(HALF_SPACING)
+        .into()
+    }
+
+    fn property_list(&self, group: &ImportGroup) -> Element<'_, ImportMessage> {
+        let mut row = Row::new();
+        for prop in &group.fields {
+            let primary_button_name = (*prop).clone();
+            if let Some(mapped) = group.mapping.get(prop.clone().as_str()) {
+                row = row.push(
+                    column![
+                        button(text!("{}", primary_button_name)),
+                        "↕",
+                        button(text!("{}", mapped))
+                            .style(danger)
+                            .on_press(RemoveMapping(mapped.as_str().to_string())),
+                    ]
+                    .align_x(Center),
+                );
+            } else {
+                row = row.push(
+                    button(text!("{}", primary_button_name))
+                        .on_press(OpenPropertyMapper(prop.clone())),
+                );
+            }
+        }
+        scrollable(row.spacing(HALF_SPACING).padding(Padding {
+            top: 0.0,
+            right: 0.0,
+            bottom: DEFAULT_SPACING,
+            left: 0.0,
+        }))
+        .horizontal()
+        .into()
+    }
+
+    fn property_selector(&self) -> Element<'_, ImportMessage> {
+        if self.selected_property.is_none() {
+            return space().into();
+        }
+        column![
+            self.available_properties(),
+            button("Добавить напрямую").on_press(SetupDirect),
+            row![
+                text_input("Пользовательское поле", &self.custom_property_name)
+                    .on_input(EditCustomProperty),
+                button("Установить привязку").on_press(SetupCustomProperty)
+            ]
+            .spacing(QUARTER_SPACING)
+        ]
+        .spacing(HALF_SPACING)
+        .into()
+    }
+
+    fn available_properties(&self) -> Element<'_, ImportMessage> {
+        let mut row = Row::new();
+
+        for default in DEFAULT_FIELDS {
+            // if group.mapping.values().any(|name| name == default) {
+            //     continue;
+            // }
+            row = row.push(
+                button(text!("{default}")).on_press(SetupDefaultProperty(default.to_string())),
+            );
+        }
+        row.spacing(HALF_SPACING).into()
+    }
+
+    fn import_settings(&self) -> Element<'_, ImportMessage> {
+        column![
+            checkbox(self.skip_empty)
+                .label("Пропускать пустые строки")
+                .on_toggle(SwitchSkipEmpty),
+            column![
+                text!("Разделитель при множественном объединении"),
+                text_input("", &self.separator).on_input(EditSeparator)
+            ]
+        ]
+        .spacing(DEFAULT_SPACING)
+        .into()
+    }
+
+    fn back_button(&self) -> Element<'_, ImportMessage> {
+        let mut button = button("←").style(button::text);
+        if self.selected_index > 0 {
+            button = button.on_press(PreviousGroup);
+        }
+        button.into()
+    }
+
+    fn next_button(&self) -> Element<'_, ImportMessage> {
+        let mut button = button("→").style(button::text);
+        if self.selected_index < self.import_data.as_ref().unwrap().0.len() - 1 {
+            button = button.on_press(NextGroup);
+        }
+        button.into()
+    }
+}
+
+impl ImportState {
+    pub fn new(state: Arc<Mutex<AppState>>) -> ImportState {
+        ImportState {
+            state,
+            path: None,
+            import_data: None,
+            selected_index: 0,
+            selected_property: None,
+            custom_property_name: "".to_string(),
+            skip_empty: true,
+            separator: ", ".to_string(),
+            progress: None,
+        }
+    }
+
+    fn select_import_file() -> Task<RootMessage> {
+        Task::perform(
+            async {
+                let file = AsyncFileDialog::new()
+                    .add_filter("Anki", &["apkg"])
+                    .pick_file()
+                    .await;
+                if let Some(file) = file {
+                    return Some(file.path().into());
+                }
+                None
+            },
+            |result| {
+                if let Some(path) = result {
+                    RootMessage::Import(UpdateFile(path))
+                } else {
+                    RootMessage::None
+                }
+            },
+        )
+    }
+
+    pub fn load_package(&self) -> Task<RootMessage> {
+        let path = self.path.clone().unwrap();
+        Task::perform(
+            async {
+                spawn_blocking(move || {
+                    Self::extract_import_file(path)?;
+                    let data = Self::read_import_file()?;
+                    Ok(data)
+                })
+                .await
+                .unwrap()
+            },
+            |result: Result<ImportData, ()>| {
+                if let Ok(import) = result {
+                    RootMessage::Import(UpdateImport(import))
+                } else {
+                    RootMessage::None
+                }
+            },
+        )
+    }
+
+    fn extract_import_file(path: PathBuf) -> Result<(), ()> {
+        let file = File::open(path).map_err(|_| ())?;
+        let reader = BufReader::new(file);
+        let mut archive = ZipArchive::new(reader).map_err(|_| ())?;
+        let temp_file_path = app_data_dir().join("import");
+        let mut temp_file = OpenOptions::new()
+            .write(true)
+            .create(true)
+            .truncate(true)
+            .open(&temp_file_path)
+            .map_err(|_| ())?;
+        if let Ok(mut file) = archive.by_name("collection.anki21") {
+            std::io::copy(&mut file, &mut temp_file).map_err(|_| ())?;
+            Ok(())
+        } else if let Ok(mut file) = archive.by_name("collection.anki2") {
+            std::io::copy(&mut file, &mut temp_file).map_err(|_| ())?;
+            Ok(())
+        } else {
+            Err(())
+        }
+    }
+    fn read_import_file() -> Result<ImportData, ()> {
+        let temp_file_path = app_data_dir().join("import");
+        let connection = Connection::open(&temp_file_path).map_err(|_| ())?;
+        let data = load_groups(&connection);
+        Ok(data)
+    }
+    fn setup_mapping(&mut self, property_name: String) {
+        let group = self.import_data.as_mut().unwrap();
+        let group = &mut group.0[self.selected_index];
+        group
+            .mapping
+            .insert(self.selected_property.clone().unwrap(), property_name);
+        self.selected_property = None;
+        self.custom_property_name.clear();
+    }
+    fn remove_mapping(&mut self, property_name: String) {
+        let group = self.import_data.as_mut().unwrap();
+        let group = &mut group.0[self.selected_index];
+        let remove_key = group
+            .mapping
+            .keys()
+            .find(|key| group.mapping[*key] == property_name)
+            .unwrap();
+        group.mapping.remove(remove_key.clone().as_str());
+        self.selected_property = None;
+        self.custom_property_name.clear();
+    }
+
+    fn start_import(&self) -> Task<RootMessage> {
+        let state = self.state.clone();
+        let separator = self.separator.clone();
+        let skip_empty = self.skip_empty;
+        let group = self.import_data.as_ref().unwrap().0[self.selected_index].clone();
+        let progress = self.progress.clone().unwrap();
+        println!("{}", group.name);
+        Task::perform(
+            async move {
+                spawn_blocking(move || {
+                    let temp_file_path = app_data_dir().join("import");
+                    let connection = Connection::open(&temp_file_path).map_err(|_| ())?;
+                    let import_list = get_words_of_group(&connection, group.id);
+                    let mut words_list = Vec::with_capacity(import_list.len());
+
+                    let map_indices = Self::get_mapping_indices(&group);
+                    let mut group_entity = WordGroup {
+                        id: 0.into(),
+                        name: group.name.clone(),
+                    };
+                    {
+                        let state = state.lock().unwrap();
+                        add_group(&mut group_entity, &state.connection);
+                    }
+
+                    let group_id = group_entity.id;
+                    for import in import_list {
+                        let mut word = WordData::new();
+
+                        word.tags = import.tags.trim().replace(" ", ", ");
+                        word.group_id = group_id;
+                        for (dest, indices) in &map_indices {
+                            let collected_string = Self::collect_strings(
+                                &import.fields,
+                                indices,
+                                &separator,
+                                skip_empty,
+                            );
+                            match dest.as_str() {
+                                "key" => {
+                                    word.key = collected_string;
+                                }
+                                "value" => {
+                                    word.value = collected_string;
+                                }
+                                "tags" => {
+                                    word.tags = collected_string;
+                                }
+                                &_ => {
+                                    word.additional.insert((*dest).clone(), collected_string);
+                                }
+                            }
+                        }
+
+                        words_list.push(word);
+                    }
+
+                    let mut state = state.lock().unwrap();
+                    let connection = &mut state.connection;
+                    let mut index = 0;
+                    let total_len = words_list.len() as f32 / 1024.0;
+                    for word in &mut words_list.chunks_mut(1024) {
+                        add_words(word, connection);
+                        index += 1;
+                        let mut progress = progress.lock().unwrap();
+                        *progress = index as f32 / total_len;
+                    }
+
+                    state.dictionary.append(&mut words_list);
+                    state.word_groups.push(group_entity);
+
+                    Ok(())
+                })
+                .await
+                .unwrap()
+            },
+            |_: Result<(), ()>| RootMessage::Import(ImportFinished),
+        )
+    }
+
+    fn get_mapping_indices(group: &ImportGroup) -> Vec<(String, Vec<usize>)> {
+        let mut final_props = group.mapping.values().cloned().collect::<Vec<_>>();
+        final_props.sort();
+        final_props.dedup();
+        let mut result = final_props
+            .iter()
+            .map(|name| (name.clone(), Vec::<usize>::with_capacity(1)))
+            .collect::<Vec<_>>();
+        for (key, endpoint) in &group.mapping {
+            let property_index = group.fields.iter().position(|f| f == key).expect("Unknown property");
+            let group_index = result
+                .iter()
+                .position(|(name, _)| name == endpoint)
+                .unwrap();
+            result[group_index].1.push(property_index);
+        }
+
+        result
+    }
+
+    fn collect_strings(
+        properties: &[String],
+        indices: &[usize],
+        separator: &str,
+        skip_empty: bool,
+    ) -> String {
+        let mut working_words = Vec::with_capacity(indices.len());
+        for index in indices {
+            let str = &properties[*index];
+            if skip_empty && str.is_empty() {
+                continue;
+            }
+            working_words.push(str.as_str());
+        }
+
+        working_words.join(separator)
+    }
+
+    fn next_progress(&self) -> Task<RootMessage> {
+        Task::perform(
+            async {
+                tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
+            },
+            |_| RootMessage::Import(NextProgress),
+        )
+    }
+}
@@ -1,18 +1,23 @@
-use crate::data_provider::card_stats::{
-    add_stat_list, delete_stat, load_stats_of_set, update_stat_score,
-};
-use crate::data_provider::history::{push_note, HistoryItem};
-use crate::repetitions::CardSetSettings;
 use crate::AppState;
+use crate::data_provider::card_stats::{delete_stat, load_stats_of_deck, update_stat_score};
+use crate::data_provider::history::{HistoryItem, push_note};
 use chrono::{DateTime, Utc};
-use rand::distr::weighted::WeightedIndex;
 use rand::distr::Distribution;
+use rand::distr::weighted::WeightedIndex;
 use rand::prelude::SliceRandom;
 use rand::rng;
 use rand::rngs::ThreadRng;
-use serde::{Deserialize, Serialize};
-use std::cmp::min;
+use rayon::iter::IndexedParallelIterator;
+use rayon::iter::IntoParallelRefIterator;
+use rayon::iter::ParallelIterator;
+use rhai::{Engine, Scope};
+use rusqlite::ToSql;
+use rusqlite::types::{FromSql, FromSqlError, FromSqlResult, ToSqlOutput, ValueRef};
+use std::cmp::PartialEq;
 use std::collections::HashMap;
+use std::fmt::{Display, Formatter};
+use std::num::ParseIntError;
+use std::str::FromStr;
 use std::sync::{Arc, Mutex};
 use std::time::Instant;

@@ -20,6 +25,55 @@ const MAX_HISTORY_LEN: usize = 20;
 const MAX_HISTORY_LEN_PART: f32 = 0.33;
 const MAX_SCORE: u8 = 25;
 const FADE_PER_DAY: f32 = 0.95;
+#[derive(Clone, PartialEq, Eq, Debug, Hash, Copy)]
+pub struct Id(u32);
+pub const INVALID_ID: Id = Id(0);
+impl FromStr for Id {
+    type Err = ParseIntError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(Id(s.parse::<u32>()?))
+    }
+}
+
+impl From<u32> for Id {
+    fn from(value: u32) -> Self {
+        Id(value)
+    }
+}
+
+impl Into<u32> for Id {
+    fn into(self) -> u32 {
+        self.0
+    }
+}
+impl Display for Id {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
+impl FromSql for Id {
+    fn column_result(value: ValueRef<'_>) -> FromSqlResult<Self> {
+        match value {
+            ValueRef::Integer(i) => Ok(Id(i as u32)),
+            _ => Err(FromSqlError::InvalidType),
+        }
+    }
+}
+
+impl ToSql for Id {
+    fn to_sql(&self) -> rusqlite::Result<ToSqlOutput<'_>> {
+        Ok(ToSqlOutput::from(self.0 as i64))
+    }
+}
+
+impl Id {
+    pub(crate) fn is_valid(self) -> bool {
+        self.0 != 0
+    }
+}
+
 #[derive(Clone, Debug)]
 pub struct KanaSet {
    name: String,
@@ -27,13 +81,11 @@ pub struct KanaSet {
    pub(crate) dictionary: Vec<Vec<(String, String)>>,
    pub(crate) include_map: [bool; 10],
 }
-
 #[derive(Clone, Debug)]
 pub enum KanaType {
    Hiragana,
    Katakana,
 }
-
 impl KanaSet {
    pub fn hiragana() -> Self {
        Self {
@@ -199,14 +251,6 @@ impl KanaSet {
        }
    }

-    /*    pub fn next(&mut self) -> (String, String) {
-        let current_set = self.list();
-
-        let mut rand = rand::rng();
-        let index: u32 = rand.random();
-        current_set[index as usize % current_set.len()].clone()
-    }*/
-
    pub fn list(&self) -> Vec<(String, String)> {
        let mut current_set: Vec<(String, String)> = Vec::new();

@@ -221,7 +265,6 @@ impl KanaSet {
        current_set
    }
 }
-
 impl Default for KanaSet {
    fn default() -> Self {
        KanaSet::hiragana()
@@ -232,45 +275,40 @@ impl PartialEq<Self> for KanaSet {
        self.name == other.name
    }
 }
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
+#[derive(Clone, Debug)]
 pub struct WordData {
-    pub id: u32,
+    pub id: Id,
    pub key: String,
    pub value: String,
    pub tags: String,
    pub additional: HashMap<String, String>,
-    pub group_id: u32,
+    pub group_id: Id,
 }
-
 impl WordData {
    pub fn new() -> Self {
        Self {
-            id: 0,
+            id: INVALID_ID,
            key: String::new(),
            value: String::new(),
            tags: String::new(),
            additional: Default::default(),
-            group_id: 1,
+            group_id: 1.into(),
        }
    }
 }
-
 #[derive(Clone)]
 pub struct WordGroup {
-    pub id: u32,
+    pub id: Id,
    pub name: String,
 }
-
 #[derive(Clone, PartialEq)]
 pub struct CardStatistics {
-    pub id: u32,
-    pub word_id: u32,
-    pub set_id: u32,
+    pub id: Id,
+    pub word_id: Id,
+    pub set_id: Id,
    pub last_open: DateTime<Utc>,
    pub score: u8,
 }
-
 impl CardStatistics {
    pub fn update(&mut self, status: WordOpenMode) {
        match status {
@@ -286,11 +324,7 @@ impl CardStatistics {
            }
        }

-        if self.score < 1 {
-            self.score = 1
-        } else if self.score > MAX_SCORE {
-            self.score = MAX_SCORE
-        }
+        self.score = self.score.clamp(1, MAX_SCORE);
        self.last_open = Utc::now();
    }

@@ -301,7 +335,6 @@ impl CardStatistics {
        (self.score as f32 * multiplier).max(1.0)
    }
 }
-
 #[derive(Clone, Copy)]
 pub enum WordOpenMode {
    Easy,
@@ -309,51 +342,29 @@ pub enum WordOpenMode {
    Hard,
    None,
 }
-
 #[derive(Clone)]
-pub struct CardSet {
+pub struct DeckData {
    words: Vec<WordData>,
    set: Vec<CardStatistics>,
    current_word_index: Option<usize>,
    state: Arc<Mutex<AppState>>,
    order_module: OrderModule,
-    settings: CardSetSettings,
+    settings: DeckSettings,
 }
-
-impl CardSet {
-    pub fn new(settings: &CardSetSettings, state: Arc<Mutex<AppState>>) -> Self {
+impl DeckData {
+    pub fn new(settings: &DeckSettings, state: Arc<Mutex<AppState>>) -> Self {
        let state_for = state.clone();
        let state_locked = state.lock().unwrap();

-        let mut current_set = load_stats_of_set(&settings, &state_locked.connection);
-        let last_list = settings.get_word_list(&state_locked);
-        let saved_ids = current_set.iter().map(|l| l.word_id).collect::<Vec<u32>>();
-        let word_ids = last_list.iter().map(|l| l.id).collect::<Vec<u32>>();
-
-        let new_stats: &mut Vec<CardStatistics> = &mut last_list
+        let mut current_set = load_stats_of_deck(settings, &state_locked.connection);
+        let last_list: Vec<_> = settings
+            .get_word_list(&state_locked)
            .iter()
-            .filter(|word| !saved_ids.contains(&word.id))
-            .map(|word| CardStatistics {
-                id: 0,
-                word_id: word.id.clone(),
-                last_open: Utc::now(),
-                score: 1,
-                set_id: settings.id.clone(),
-            })
+            .map(|w| &state_locked.dictionary[*w])
+            .cloned()
            .collect();
+        let word_ids = last_list.iter().map(|l| l.id).collect::<Vec<Id>>();

-        let time = Instant::now();
-
-        if !new_stats.is_empty() {
-            add_stat_list(new_stats, &state_locked.connection);
-            current_set.append(new_stats);
-        }
-
-        println!(
-            "Added {} stats: {}",
-            new_stats.len(),
-            time.elapsed().as_millis()
-        );
        let mut index = 0;
        for stat in current_set.clone() {
            if !word_ids.contains(&stat.word_id) {
@@ -370,20 +381,19 @@ impl CardSet {
            current_word_index: None,
            state: state_for,
            order_module: match settings.open_mode {
-                SetOrderMode::Default => OrderModule::SemiRandomSRS(SemiRandomSRSModule::new()),
-                SetOrderMode::TrainWorstFirst => {
+                OrderMode::Default => OrderModule::SemiRandomSRS(SemiRandomSRSModule::new()),
+                OrderMode::TrainWorstFirst => {
                    OrderModule::WorstWordsSRS(WorstWordsSRSModule::new())
                }
-                SetOrderMode::FullRandom => OrderModule::RandomSRS(RandomSRSModule::new()),
+                OrderMode::FullRandom => OrderModule::RandomSRS(RandomSRSModule::new()),
            },
            settings: settings.clone(),
        }
    }
-
    pub fn next(&mut self) -> (WordData, CardStatistics) {
        let index = match self.order_module.clone() {
            OrderModule::SemiRandomSRS(mut module) => {
-                if module.initialized == false {
+                if !module.initialized {
                    module.init(self)
                }
                let index = module.next(self);
@@ -391,7 +401,7 @@ impl CardSet {
                index
            }
            OrderModule::RandomSRS(mut module) => {
-                if module.initialized == false {
+                if !module.initialized {
                    module.init(self)
                }
                let index = module.next(self);
@@ -399,7 +409,7 @@ impl CardSet {
                index
            }
            OrderModule::WorstWordsSRS(mut module) => {
-                if module.initialized == false {
+                if !module.initialized {
                    module.init(self)
                }
                let index = module.next(self);
@@ -411,9 +421,8 @@ impl CardSet {
        self.current_word_index = Some(index);
        (self.words[index].clone(), self.set[index].clone())
    }
-
    pub fn open(&mut self, status: WordOpenMode) {
-        if let None = self.current_word_index {
+        if self.current_word_index.is_none() {
            return;
        }
        let index = self.current_word_index.unwrap();
@@ -443,44 +452,44 @@ impl CardSet {
            HistoryItem {
                timestamp: Utc::now(),
                word_id: word.word_id,
-                mode: WordOpenMode::Easy,
+                mode: status,
                before: old_score,
                after: new_score,
            },
        )
    }
-
    pub fn len(&self) -> usize {
        self.set.len()
    }
 }
-
 #[derive(Clone, PartialEq, Copy, Eq)]
-pub enum SetOrderMode {
+pub enum OrderMode {
    Default,
    TrainWorstFirst,
    FullRandom,
 }
-
+#[derive(Clone, Copy, Eq, PartialEq, Default)]
+pub enum AppendMode {
+    Full,
+    #[default]
+    Manual,
+}
 #[derive(Clone)]
 enum OrderModule {
    SemiRandomSRS(SemiRandomSRSModule),
    RandomSRS(RandomSRSModule),
    WorstWordsSRS(WorstWordsSRSModule),
 }
-
 trait SRSModule {
-    fn next(&mut self, set: &mut CardSet) -> usize;
+    fn next(&mut self, set: &mut DeckData) -> usize;
    fn open(&mut self, status: WordOpenMode, index: usize, updated_word: CardStatistics);
-    fn init(&mut self, set: &mut CardSet);
+    fn init(&mut self, set: &mut DeckData);
 }
-
 #[derive(Clone)]
 struct RandomSRSModule {
    basket: Vec<usize>,
    initialized: bool,
 }
-
 impl RandomSRSModule {
    fn new() -> RandomSRSModule {
        Self {
@@ -489,26 +498,26 @@ impl RandomSRSModule {
        }
    }
 }
-
 impl SRSModule for RandomSRSModule {
-    fn next(&mut self, set: &mut CardSet) -> usize {
-        if self.basket.is_empty() {
+    fn next(&mut self, set: &mut DeckData) -> usize {
+        match self.basket.pop() {
+            Some(index) => index,
+            None => {
                self.basket = (0..set.words.len()).collect::<Vec<usize>>();
-            self.basket.shuffle(&mut rand::rng())
+                self.basket.shuffle(&mut rand::rng());
+                self.basket.pop().expect("empty basket")
+            }
        }
-
-        self.basket.pop().unwrap()
    }

    fn open(&mut self, _: WordOpenMode, _: usize, _: CardStatistics) {}

-    fn init(&mut self, set: &mut CardSet) {
+    fn init(&mut self, set: &mut DeckData) {
        self.initialized = true;
        self.basket = (0..set.words.len()).collect::<Vec<usize>>();
        self.basket.shuffle(&mut rand::rng())
    }
 }
-
 #[derive(Clone)]
 struct SemiRandomSRSModule {
    history: Vec<usize>,
@@ -516,7 +525,6 @@ struct SemiRandomSRSModule {
    generator: ThreadRng,
    initialized: bool,
 }
-
 impl SemiRandomSRSModule {
    fn new() -> SemiRandomSRSModule {
        SemiRandomSRSModule {
@@ -527,9 +535,8 @@ impl SemiRandomSRSModule {
        }
    }
 }
-
 impl SRSModule for SemiRandomSRSModule {
-    fn next(&mut self, set: &mut CardSet) -> usize {
+    fn next(&mut self, set: &mut DeckData) -> usize {
        let index = self.last_weights.sample(&mut self.generator);

        if self.history.contains(&index) {
@@ -543,15 +550,13 @@ impl SRSModule for SemiRandomSRSModule {

        index
    }
-
    fn open(&mut self, _: WordOpenMode, index: usize, word: CardStatistics) {
        let new_weight = (100.0 / word.calculated_score()).powf(2.0);
        self.last_weights
            .update_weights(&[(index, &new_weight)])
-            .unwrap();
+            .expect("update weights error");
    }
-
-    fn init(&mut self, set: &mut CardSet) {
+    fn init(&mut self, set: &mut DeckData) {
        self.initialized = true;
        let weights = set
            .set
@@ -561,16 +566,11 @@ impl SRSModule for SemiRandomSRSModule {
        self.last_weights = WeightedIndex::new(weights).unwrap();
    }
 }
-
 impl SemiRandomSRSModule {
-    fn history_len(&self, set: &CardSet) -> usize {
-        min(
-            MAX_HISTORY_LEN,
-            (set.len() as f32 * MAX_HISTORY_LEN_PART) as usize,
-        )
+    fn history_len(&self, set: &DeckData) -> usize {
+        ((set.len() as f32 * MAX_HISTORY_LEN_PART) as usize).clamp(1, MAX_HISTORY_LEN)
    }
 }
-
 #[derive(Clone)]
 struct WorstWordsSRSModule {
    initialized: bool,
@@ -580,29 +580,31 @@ struct WorstWordsSRSModule {
    queue: Vec<usize>,
    rounds_count: u8,
 }
-
 impl SRSModule for WorstWordsSRSModule {
-    fn next(&mut self, set: &mut CardSet) -> usize {
+    fn next(&mut self, set: &mut DeckData) -> usize {
        if self.rounds_remaining == 0 {
            self.fill_pool(set);
            self.rounds_remaining = self.rounds_count;
        }

-        if self.queue.is_empty() {
+        match self.queue.pop() {
+            Some(index) => {
+                index
+            }
+            None => {
                self.queue.append(&mut self.pool.clone());
                self.rounds_remaining -= 1;
+                self.queue.pop().expect("empty queue")
+            }
        }
-
-        self.queue.pop().unwrap()
    }

    fn open(&mut self, _: WordOpenMode, _: usize, _: CardStatistics) {}

-    fn init(&mut self, _: &mut CardSet) {
+    fn init(&mut self, _: &mut DeckData) {
        self.initialized = true;
    }
 }
-
 impl WorstWordsSRSModule {
    fn new() -> WorstWordsSRSModule {
        WorstWordsSRSModule {
@@ -614,8 +616,7 @@ impl WorstWordsSRSModule {
            queue: vec![],
        }
    }
-
-    fn fill_pool(&mut self, set: &CardSet) {
+    fn fill_pool(&mut self, set: &DeckData) {
        let mut sorted = set
            .set
            .clone()
@@ -631,3 +632,88 @@ impl WorstWordsSRSModule {
        self.pool = worst;
    }
 }
+#[derive(Clone)]
+pub struct DeckSettings {
+    pub id: Id,
+    pub name: String,
+    pub forward: String,
+    pub backward: String,
+    pub filter: String,
+    pub count: Option<usize>,
+    pub worst_words_list: Option<Vec<WordData>>,
+    pub open_mode: OrderMode,
+}
+impl DeckSettings {
+    pub(crate) fn with_name(name: String) -> DeckSettings {
+        DeckSettings {
+            id: 0.into(),
+            name,
+            forward: "".to_string(),
+            backward: "".to_string(),
+            filter: "true".to_string(),
+            count: None,
+            worst_words_list: None,
+            open_mode: OrderMode::Default,
+        }
+    }
+    pub fn check_filter(&self) -> bool {
+        let time = Instant::now();
+        let engine = Engine::new();
+        let ast = engine.compile(&self.filter);
+        println!("Compile time is {:?}", time.elapsed());
+        ast.is_ok()
+    }
+    pub fn get_word_list(&self, state: &AppState) -> Vec<usize> {
+        let time = Instant::now();
+        let mut list = vec![];
+        let engine = Engine::new();
+
+        let ast = engine.compile(&self.filter);
+        if ast.is_err() {
+            return list;
+        }
+
+        let ast = ast.unwrap();
+
+        let groups = &state.word_groups;
+
+        list = state
+            .dictionary
+            .par_iter()
+            .enumerate()
+            .filter(|(_, word)| {
+                let mut more = rhai::Map::new();
+                for iced in &word.additional {
+                    more.insert(iced.0.clone().into(), iced.1.clone().into());
+                }
+                let mut scope = Scope::new();
+                scope
+                    .push_constant("id", word.id.0)
+                    .push_constant("key", word.key.clone())
+                    .push_constant("value", word.value.clone())
+                    .push_constant("tags", word.tags.clone())
+                    .push_constant("more", more)
+                    .push_constant(
+                        "group",
+                        groups
+                            .iter()
+                            .find(|g| g.id == word.group_id)
+                            .cloned()
+                            .unwrap()
+                            .name,
+                    );
+
+                let result = engine.eval_ast_with_scope::<bool>(&mut scope, &ast);
+                result.is_ok() && result.unwrap()
+            })
+            .map(|(index, _)| index)
+            .collect();
+
+        println!("Collecting available words is {:?}", time.elapsed());
+
+        list
+    }
+    pub fn require_speech(&self) -> bool {
+        self.forward == "speech" || self.backward == "speech"
+    }
+}
@@ -3,50 +3,47 @@ mod data_provider;
 mod dictionary;
 mod dictionary_test;
 mod history;
+pub mod import;
 mod lang;
 pub mod navigation;
 mod quiz;
 mod randomizer;
 mod repetition;
+mod repetition_settings;
 mod repetitions;
 mod selector;
 pub mod styling;
 mod sync;
 mod word;
 mod writing;
-mod repetition_settings;

+use crate::RootMessage::Keyboard;
 use crate::data_provider::card_sets::load_sets;
 use crate::data_provider::settings::get_setting;
 use crate::data_provider::sqlite::default_connection;
 use crate::data_provider::words::{load_word_groups, load_words};
-use crate::lang::{WordData, WordGroup};
+use crate::lang::{DeckSettings, Id, WordData, WordGroup};
 use crate::navigation::{AppSettings, RootMessage, ScreenState};
 use crate::quiz::*;
-use crate::repetitions::CardSetSettings;
-use crate::RootMessage::Keyboard;
 use chrono::NaiveDate;
-use iced::{keyboard, Subscription, Theme};
-use iced::{window, Font};
-use iced_core::window::Position;
+use hashbrown::HashMap;
+use iced::{Font, window};
+use iced::{Subscription, Theme, keyboard};
 use iced_core::Size;
+use iced_core::window::Position;
+use mimalloc::MiMalloc;
 use rusqlite::Connection;
-use std::collections::HashMap;
+#[cfg(target_os = "linux")]
 use iced_core::window::settings::PlatformSpecific;
+#[global_allocator]
+static GLOBAL: MiMalloc = MiMalloc;

 const USER_FONT: Font = Font::with_name("Noto Sans JP");

 fn main() -> iced::Result {
    println!("Welcome to JapLearn");
-    iced::application(ScreenState::boot, ScreenState::update, ScreenState::view).window(window::Settings{
-        position: Position::Centered,
-        min_size: Some(Size::new(700.0_f32.into(), 700.0_f32.into())),
-        platform_specific: PlatformSpecific {
-            application_id: "JapLearn".to_string(),
-            override_redirect: false
-        },
-        .. Default::default()
-    })
+    iced::application(ScreenState::boot, ScreenState::update, ScreenState::view)
+        .window(window_settings())
        .subscription(subscription)
        .title("JapLearn")
        .settings(iced::Settings {
@@ -59,29 +56,54 @@ fn main() -> iced::Result {
        .run()
 }

+fn window_settings() -> window::Settings {
+    let mut settings = window::Settings {
+        position: Position::Centered,
+        min_size: Some(Size::new(700.0_f32, 700.0_f32)),
+        ..Default::default()
+    };
+
+    #[cfg(target_os = "linux")]
+    {
+        settings.platform_specific = PlatformSpecific {
+            application_id: "JapLearn".to_string(),
+            override_redirect: false,
+        };
+    }
+
+    settings
+}
+
 fn subscription(_state: &ScreenState) -> Subscription<RootMessage> {
-    keyboard::listen().map(|e| Keyboard(e))
+    keyboard::listen().map(Keyboard)
 }

 pub struct AppState {
    pub dictionary: Vec<WordData>,
-    pub card_sets: Vec<CardSetSettings>,
+    pub decks: Vec<DeckSettings>,
    pub word_groups: Vec<WordGroup>,
    pub connection: Connection,
    pub sync_data: AppSettings,
-    pub activity: HashMap<u32, Vec<(NaiveDate, u32)>>
+    pub activity: HashMap<Id, Vec<(NaiveDate, u32)>>,
+}
+
+impl Default for AppState {
+    fn default() -> Self {
+        Self::new()
+    }
 }

 impl AppState {
    pub fn new() -> Self {
-
-
        Self {
            dictionary: vec![],
-            card_sets: vec![],
+            decks: vec![],
            word_groups: vec![],
            connection: default_connection(),
-            sync_data: AppSettings { key: None, auto_web_fetch: false },
+            sync_data: AppSettings {
+                key: None,
+                auto_web_fetch: false,
+            },
            activity: Default::default(),
        }
    }
@@ -94,13 +116,19 @@ fn fill_state(state: &mut AppState) {
    let setting = load_settings(&state.connection);

    state.dictionary = list;
-    state.card_sets = sets;
+    state.decks = sets;
    state.word_groups = groups;
    state.sync_data = setting
 }

 fn load_settings(connection: &Connection) -> AppSettings {
    let key = get_setting("SYNC_KEY".to_string(), connection);
-    let fetch =  get_setting("AUTO_WEB_FETCH".to_string(), connection).unwrap_or("false".to_string()).parse::<bool>().unwrap();
-    AppSettings { key, auto_web_fetch: fetch }
+    let fetch = get_setting("AUTO_WEB_FETCH".to_string(), connection)
+        .unwrap_or("false".to_string())
+        .parse::<bool>()
+        .unwrap();
+    AppSettings {
+        key,
+        auto_web_fetch: fetch,
+    }
 }
@@ -1,9 +1,13 @@
 use crate::data_provider::history::{get_history_of_set, history_dir};
 use crate::data_provider::sqlite::{create_db, default_connection};
-use crate::data_provider::web_api::{get_local_version, get_web_version, load_data, set_local_version};
+use crate::data_provider::web_api::{
+    get_local_version, get_web_version, load_data, set_local_version,
+};
 use crate::dictionary::{app_data_dir, DictionaryMessage, DictionaryState};
 use crate::dictionary_test::{DictionaryQuizMessage, DictionaryQuizState};
 use crate::history::{HistoryMessage, HistoryState};
+use crate::import::{ImportMessage, ImportState};
+use crate::lang::Id;
 use crate::message_navigation;
 use crate::navigation::Page::*;
 use crate::navigation::RootMessage::{DataLoaded, Keyboard, UpdateData};
@@ -19,12 +23,13 @@ use crate::sync::{SyncMessage, SyncState};
 use crate::view_navigation;
 use crate::word::{WordMessage, WordState};
 use crate::writing::{WritingMessage, WritingState};
-use crate::{AppState, fill_state};
+use crate::{fill_state, AppState};
 use chrono::NaiveDate;
+use hashbrown::HashMap;
 use iced::keyboard::Event;
 use iced::{Element, Task};
 use reqwest::Error;
-use std::collections::HashMap;
+use rusqlite::Connection;
 use std::sync::{Arc, Mutex};
 use std::time::Instant;

@@ -54,8 +59,9 @@ pub enum RootMessage {
    Sync(SyncMessage),
    History(HistoryMessage),
    RepetitionSettings(RepetitionSettingsMessage),
+    Import(ImportMessage),
    Keyboard(Event),
-    DataLoaded(HashMap<u32, Vec<(NaiveDate, u32)>>),
+    DataLoaded(HashMap<Id, Vec<(NaiveDate, u32)>>),
    None,
    UpdateData,
 }
@@ -73,7 +79,7 @@ pub enum Page {
    Sync(SyncState),
    History(HistoryState),
    RepetitionSettings(RepetitionSettingsState),
-
+    Import(ImportState),
    PreviousPage,
 }

@@ -97,7 +103,9 @@ impl ScreenState {
            final_task = Task::batch([
                reading_additional_task,
                Task::perform(Self::load_web_backup(key), |result| {
-                    if let Ok(update) = result && update {
+                    if let Ok(update) = result
+                        && update
+                    {
                        UpdateData
                    } else {
                        RootMessage::None
@@ -116,12 +124,15 @@ impl ScreenState {
    async fn load_additional_data() -> RootMessage {
        let directory = history_dir();
        let mut map = HashMap::new();
-        for file in directory.read_dir().unwrap() {
-            if let Ok(file) = file {
+        for file in directory.read_dir().unwrap().flatten() {
            let mut vec = vec![];
-                let history_file_name = file.file_name().into_string().unwrap();
-                let id = history_file_name[4..history_file_name.len() - 12]
-                    .parse::<u32>()
+            let history_file_name = match file.file_name().into_string() {
+                Err(_) => continue,
+                Ok(v) => v,
+            };
+
+            let id: Id = history_file_name[4..history_file_name.len() - 12]
+                .parse::<Id>()
                .unwrap();

            let history = get_history_of_set(id);
@@ -133,13 +144,13 @@ impl ScreenState {
            }
            map.insert(id, vec);
        }
-        }
        DataLoaded(map)
    }

    async fn load_web_backup(string: String) -> Result<bool, Error> {
        let local = get_local_version().await;
        let web = get_web_version(string.as_str()).await?;
+        println!("{} {}", local, web);
        if web > local {
            println!("Web version is newer than local version");
            load_data(string, true).await;
@@ -165,6 +176,9 @@ impl ScreenState {
        if let UpdateData = message {
            println!("Loading data");
            let mut state = self.app_state.lock().unwrap();
+            if cfg!(windows) {
+                state.connection = Connection::open_in_memory().unwrap();
+            }
            let path = app_data_dir();
            let db_file = path.join("data.db");
            let temp_db_file = path.join("data.db.tmp");
@@ -190,7 +204,8 @@ impl ScreenState {
                Word,
                Sync,
                History,
-                RepetitionSettings
+                RepetitionSettings,
+                Import
            );
        }
        println!("Update took {:?}", time.elapsed());
@@ -213,7 +228,8 @@ impl ScreenState {
            Word,
            Sync,
            History,
-            RepetitionSettings
+            RepetitionSettings,
+            Import
        )
    }

@@ -233,7 +249,8 @@ impl ScreenState {
            Word,
            Sync,
            History,
-            RepetitionSettings
+            RepetitionSettings,
+            Import
        );

        println!("View took {:?}", time.elapsed());
@@ -290,7 +307,10 @@ macro_rules! message_navigation {
    ($msg:expr, $stack:expr, $state:expr) => {
        if let Some(new_page) = $state.navigate(&$msg) {
            if let Page::PreviousPage = new_page {
+                if $stack.len() > 1 {
                    $stack.pop();
+                }
+
                return (Task::<RootMessage>::none(), true);
            } else {
                $stack.push(new_page);
@@ -318,8 +338,10 @@ macro_rules! state_navigate_handle {
 }

 pub trait NavigatedPage<T> {
-    fn navigate(&self, message: &T) -> Option<Page>;
+    fn navigate(&mut self, message: &T) -> Option<Page>;
    fn navigated(&mut self);
+    fn update(&mut self, message: T) -> Task<RootMessage>;
+    fn view(&self) -> Element<'_, T>;
 }

 pub trait KeyPressedPage {
@@ -5,7 +5,7 @@ use crate::quiz::QuizMessage::*;
 use crate::styling::*;
 use crate::{RootMessage, USER_FONT};
 use iced::widget::*;
-use iced::{alignment, Element, Fill, Task};
+use iced::{Element, Fill, Task, alignment};
 use rand::seq::SliceRandom;

 #[derive(Clone, Debug)]
@@ -20,7 +20,7 @@ pub struct QuizState {
 }

 impl NavigatedPage<QuizMessage> for QuizState {
-    fn navigate(&self, message: &QuizMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &QuizMessage) -> Option<Page> {
        if let Back = message {
            Some(PreviousPage)
        } else {
@@ -28,8 +28,83 @@ impl NavigatedPage<QuizMessage> for QuizState {
        }
    }

-    fn navigated(&mut self) {
+    fn navigated(&mut self) {}
+
+    fn update(&mut self, message: QuizMessage) -> Task<RootMessage> {
+        match message {
+            ContentChanged(content) => {
+                if content.contains("`") {
+                    self.is_help = true;
+                    self.score.fail += 1;
+
+                    return Task::none();
                }
+                self.current_roman = content;
+                if self.correct_roman == self.current_roman {
+                    if !self.is_help {
+                        self.score.correct += 1;
+                    }
+
+                    self.is_help = false;
+                    self.score.total += 1;
+                    self.update_showed()
+                } else if self.current_roman.len() == self.correct_roman.len() {
+                    self.score.total += 1;
+                    self.score.fail += 1;
+                    self.update_showed()
+                }
+            }
+            Back => {},
+        }
+        Task::none()
+    }
+
+    fn view(&self) -> Element<'_, QuizMessage> {
+        container(
+            iced::widget::column![
+                row![
+                    text!("{}", self.kana.to_lowercase())
+                        .size(54)
+                        .font(USER_FONT),
+                    text!(
+                        "{}",
+                        if self.is_help {
+                            self.correct_roman.clone()
+                        } else {
+                            String::new()
+                        }
+                    ),
+                ]
+                .align_y(alignment::Vertical::Center)
+                .spacing(20),
+                text_input("Романдзи", &self.current_roman)
+                    .size(28)
+                    .width(150)
+                    .on_input(ContentChanged),
+                score_display(&self.score),
+                button("Закончить").style(jl_button).on_press(Back),
+            ]
+            .spacing(DEFAULT_SPACING)
+            .align_x(alignment::Horizontal::Center),
+        )
+        .center_y(Fill)
+        .center_x(Fill)
+        .into()
+    }
+}
+
+fn score_display<'a, T: 'a>(score: &Score) -> Element<'a, T> {
+    row![
+        text!("{}", score.total.to_string()).size(25),
+        text!("{}", score.correct.to_string())
+            .size(25)
+            .color(iced::Color::from_rgb8(60, 170, 60)),
+        text!("{}", score.fail.to_string())
+            .color(iced::Color::from_rgb8(255, 79, 0))
+            .size(25),
+    ]
+    .spacing(DEFAULT_SPACING)
+    .into()
 }

 impl QuizState {
@@ -57,35 +132,6 @@ impl Default for QuizState {
 }

 impl QuizState {
-    pub fn update(&mut self, message: QuizMessage) -> Task<RootMessage> {
-        match message {
-            ContentChanged(content) => {
-                if content.contains("`") {
-                    self.is_help = true;
-                    self.score.fail += 1;
-
-                    return Task::none();
-                }
-                self.current_roman = content;
-                if self.correct_roman == self.current_roman {
-                    if self.is_help == false {
-                        self.score.correct += 1;
-                    }
-
-                    self.is_help = false;
-                    self.score.total += 1;
-                    self.update_showed()
-                } else if self.current_roman.len() == self.correct_roman.len() {
-                    self.score.total += 1;
-                    self.score.fail += 1;
-                    self.update_showed()
-                }
-            }
-            Back => todo!(),
-        }
-        Task::none()
-    }
-
    fn update_showed(&mut self) {
        self.current_roman = String::new();
        let queue = &mut self.queue;
@@ -102,48 +148,6 @@ impl QuizState {
        self.kana = pair.0;
        self.correct_roman = pair.1;
    }
-
-    pub fn view(&self) -> Element<'_, QuizMessage> {
-        container(
-            iced::widget::column![
-                row![
-                    text!("{}", self.kana.to_lowercase())
-                        .size(54)
-                        .font(USER_FONT),
-                    text!(
-                        "{}",
-                        if self.is_help {
-                            self.correct_roman.clone()
-                        } else {
-                            String::new()
-                        }
-                    ),
-                ]
-                .align_y(alignment::Vertical::Center)
-                .spacing(20),
-                text_input("Романдзи", &self.current_roman)
-                    .size(28)
-                    .width(150)
-                    .on_input(ContentChanged),
-                row![
-                    text!("{}", self.score.total.to_string()).size(25),
-                    text!("{}", self.score.correct.to_string())
-                        .size(25)
-                        .color(iced::Color::from_rgb8(60, 170, 60)),
-                    text!("{}", self.score.fail.to_string())
-                        .color(iced::Color::from_rgb8(255, 79, 0))
-                        .size(25),
-                ]
-                .spacing(DEFAULT_SPACING),
-                button("Закончить").style(jl_button).on_press(Back),
-            ]
-            .spacing(DEFAULT_SPACING)
-            .align_x(alignment::Horizontal::Center),
-        )
-        .center_y(Fill)
-        .center_x(Fill)
-        .into()
-    }
 }
 #[derive(Debug, Clone)]
 pub enum QuizMessage {
@@ -1,9 +1,9 @@
+use crate::RootMessage;
 use crate::navigation::{NavigatedPage, Page};
 use crate::randomizer::RandomizerMessage::{Back, Edit, Start};
-use crate::styling::{back_overlay, jl_button, HALF_SPACING};
-use crate::RootMessage;
-use iced::widget::{button, text_editor};
+use crate::styling::{HALF_SPACING, back_overlay, jl_button};
 use iced::Task;
+use iced::widget::{button, text_editor};
 use rand::prelude::SliceRandom;

 #[derive(Clone, Debug)]
@@ -20,32 +20,15 @@ pub enum RandomizerMessage {
 }

 impl NavigatedPage<RandomizerMessage> for RandomizerState {
-    fn navigate(&self, message: &RandomizerMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &RandomizerMessage) -> Option<Page> {
        if let Back = message {
            return Some(Page::PreviousPage);
        }
        None
    }

-    fn navigated(&mut self) {
-    }
-}
-
-impl Default for RandomizerState {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
-impl RandomizerState {
-    pub fn new() -> RandomizerState {
-        RandomizerState {
-            text: Default::default(),
-            list: vec![],
-        }
-    }
-
-    pub fn update(&mut self, message: RandomizerMessage) -> Task<RootMessage> {
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: RandomizerMessage) -> Task<RootMessage> {
        match message {
            Edit(action) => {
                self.text.perform(action);
@@ -65,7 +48,7 @@ impl RandomizerState {
        Task::none()
    }

-    pub fn view(&self) -> iced::Element<'_, RandomizerMessage> {
+    fn view(&self) -> iced::Element<'_, RandomizerMessage> {
        back_overlay(
            iced::widget::column![
                text_editor(&self.text)
@@ -81,3 +64,18 @@ impl RandomizerState {
        )
    }
 }
+
+impl Default for RandomizerState {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl RandomizerState {
+    pub fn new() -> RandomizerState {
+        RandomizerState {
+            text: Default::default(),
+            list: vec![],
+        }
+    }
+}
@@ -1,8 +1,8 @@
 use crate::data_provider::voice::get_voice;
-use crate::lang::{CardSet, CardStatistics, WordData, WordOpenMode};
+use crate::lang::Id;
+use crate::lang::{CardStatistics, DeckData, DeckSettings, WordData, WordOpenMode};
 use crate::navigation::Page::PreviousPage;
 use crate::navigation::{KeyPressedPage, NavigatedPage, Page};
-use crate::repetitions::CardSetSettings;
 use crate::styling::*;
 use crate::{AppState, RootMessage};
 use chrono::Local;
@@ -18,18 +18,18 @@ use tokio::task::spawn_blocking;

 pub struct RepetitionState {
    state: Arc<Mutex<AppState>>,
-    pub settings: CardSetSettings,
-    pub set: CardSet,
+    pub settings: DeckSettings,
+    pub set: DeckData,
    current_word: WordData,
    current_statistic: CardStatistics,
    open: bool,
    can_play: bool,
    sink: Arc<MixerDeviceSink>,
-    opened: HashSet<u32>,
+    opened: HashSet<Id>,
 }

 impl NavigatedPage<RepetitionMessage> for RepetitionState {
-    fn navigate(&self, message: &RepetitionMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &RepetitionMessage) -> Option<Page> {
        if let RepetitionMessage::Back = message {
            Some(PreviousPage)
        } else {
@@ -37,32 +37,8 @@ impl NavigatedPage<RepetitionMessage> for RepetitionState {
        }
    }

-    fn navigated(&mut self) {
-    }
-}
-
-impl RepetitionState {
-    pub(crate) fn new(set: CardSetSettings, state: Arc<Mutex<AppState>>) -> RepetitionState {
-        let mut card_set = CardSet::new(&set, state.clone());
-        let (word, stat) = card_set.next();
-        let sink_handle = rodio::DeviceSinkBuilder::open_default_sink().unwrap();
-
-        RepetitionState {
-            state,
-            settings: set,
-            set: card_set,
-            current_word: word,
-            current_statistic: stat,
-            open: false,
-            can_play: true,
-            sink: Arc::new(sink_handle),
-            opened: HashSet::new(),
-        }
-    }
-}
-
-impl RepetitionState {
-    pub fn update(&mut self, message: RepetitionMessage) -> Task<RootMessage> {
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: RepetitionMessage) -> Task<RootMessage> {
        match message {
            RepetitionMessage::Back => {}
            RepetitionMessage::Next => return self.next(),
@@ -87,7 +63,59 @@ impl RepetitionState {

        Task::none()
    }
+    fn view(&self) -> Element<'_, RepetitionMessage> {
+        back_overlay(
+            column![
+                container(self.draw_forward())
+                    .width(Fill)
+                    .height(Fill)
+                    .align_x(Center)
+                    .align_y(alignment::Vertical::Center),
+                rule::horizontal(2),
+                container(self.draw_backward())
+                    .width(Fill)
+                    .height(Fill)
+                    .align_x(Center)
+                    .align_y(alignment::Vertical::Center),
+                container(self.answer_bar())
+                    .width(Fill)
+                    .align_x(Center)
+                    .height(80),
+                text!(
+                    "Затронуто слов {}, {}%",
+                    self.opened.len(),
+                    (self.opened.len() as f32 / self.set.len() as f32 * 10000.0).round() / 100.0
+                )
+            ]
+            .height(Fill)
+            .width(Fill)
+            .into(),
+            RepetitionMessage::Back,
+        )
+    }
+}

+impl RepetitionState {
+    pub(crate) fn new(set: DeckSettings, state: Arc<Mutex<AppState>>) -> RepetitionState {
+        let mut card_set = DeckData::new(&set, state.clone());
+        let (word, stat) = card_set.next();
+        let sink_handle = rodio::DeviceSinkBuilder::open_default_sink().unwrap();
+
+        RepetitionState {
+            state,
+            settings: set,
+            set: card_set,
+            current_word: word,
+            current_statistic: stat,
+            open: false,
+            can_play: true,
+            sink: Arc::new(sink_handle),
+            opened: HashSet::new(),
+        }
+    }
+}
+
+impl RepetitionState {
    fn next(&mut self) -> Task<RootMessage> {
        if self.open {
            self.answer(WordOpenMode::None)
@@ -137,36 +165,6 @@ impl RepetitionState {
            state.activity.insert(id, vec![(now, 1)]);
        }
    }
-    pub fn view(&self) -> Element<'_, RepetitionMessage> {
-        back_overlay(
-            column![
-                container(self.draw_forward())
-                    .width(Fill)
-                    .height(Fill)
-                    .align_x(Center)
-                    .align_y(alignment::Vertical::Center),
-                rule::horizontal(2),
-                container(self.draw_backward())
-                    .width(Fill)
-                    .height(Fill)
-                    .align_x(Center)
-                    .align_y(alignment::Vertical::Center),
-                container(self.answer_bar())
-                    .width(Fill)
-                    .align_x(Center)
-                    .height(80),
-                text!(
-                    "Затронуто слов {}, {}%",
-                    self.opened.len(),
-                    (self.opened.len() as f32 / self.set.len() as f32 * 10000.0).round() / 100.0
-                )
-            ]
-            .height(Fill)
-            .width(Fill)
-            .into(),
-            RepetitionMessage::Back,
-        )
-    }

    fn draw_forward(&self) -> Element<'_, RepetitionMessage> {
        self.draw_card_view(self.settings.forward.as_str())
@@ -197,6 +195,7 @@ impl RepetitionState {
                "speech" => self.draw_voice(),
                "reading" => self.draw_reading(word),
                "context" => self.draw_context(word),
+                "description" => self.draw_description(word),
                _ => space().into(),
            })
        }
@@ -272,6 +271,12 @@ impl RepetitionState {
            Some(context) => text!("{}", context).size(24).into(),
        }
    }
+    fn draw_description(&self, word: &WordData) -> Element<'_, RepetitionMessage> {
+        match word.additional.get("context") {
+            None => space().into(),
+            Some(context) => text!("{}", context).size(24).into(),
+        }
+    }
 }

 impl KeyPressedPage for RepetitionState {
@@ -285,8 +290,8 @@ impl KeyPressedPage for RepetitionState {
            text: _,
            repeat: _,
        } = message
+            && let Code(code) = pk
        {
-            if let Code(code) = pk {
            return match code {
                keyboard::key::Code::Space => self.next(),
                keyboard::key::Code::Digit1 => self.answer(WordOpenMode::None),
@@ -296,7 +301,7 @@ impl KeyPressedPage for RepetitionState {
                _ => Task::none(),
            };
        }
-        }
+
        Task::none()
    }
 }
@@ -313,7 +318,7 @@ pub enum RepetitionMessage {
 async fn play_sound(sink: Arc<MixerDeviceSink>, text: String) {
    let data = get_voice(text.as_str()).await;
    spawn_blocking(move || {
-        rodio::play(&sink.mixer(), data).unwrap().sleep_until_end();
+        rodio::play(sink.mixer(), data).unwrap().sleep_until_end();
    })
    .await
    .unwrap();
@@ -1,23 +1,25 @@
-use crate::data_provider::card_sets::{delete_set, update_card_set};
+use crate::AppState;
+use crate::data_provider::card_sets::{delete_set, update_deck};
+use crate::lang::DeckSettings;
 use crate::navigation::Page::PreviousPage;
 use crate::navigation::{NavigatedPage, Page, RootMessage};
 use crate::repetition_settings::RepetitionSettingsMessage::*;
-use crate::repetitions::CardSetSettings;
 use crate::styling::*;
-use crate::AppState;
 use iced::widget::button::danger;
 use iced::widget::{button, column, row, scrollable, space, text, text_input};
 use iced::{Element, Task};
 use iced_core::Length::Fill;
-use iced_core::Padding;
+use iced_core::{color, Padding, Theme};
 use std::sync::{Arc, Mutex};
 use std::time::Duration;
+use iced::widget::text_input::Catalog;

 pub struct RepetitionSettingsState {
-    set: CardSetSettings,
+    set: DeckSettings,
    index: usize,
    state: Arc<Mutex<AppState>>,
    real_delete: bool,
+    correct_filter: bool,
 }

 impl RepetitionSettingsState {
@@ -25,19 +27,22 @@ impl RepetitionSettingsState {
        let set;
        {
            let local_state = p1.lock().unwrap();
-            set = local_state.card_sets[index].clone();
+            set = local_state.decks[index].clone();
        }
+        let filter_state = set.check_filter();
+
        RepetitionSettingsState {
            index,
            set,
            state: p1,
            real_delete: false,
+            correct_filter: filter_state,
        }
    }
 }

 impl NavigatedPage<RepetitionSettingsMessage> for RepetitionSettingsState {
-    fn navigate(&self, message: &RepetitionSettingsMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &RepetitionSettingsMessage) -> Option<Page> {
        if let Back = message {
            Some(PreviousPage)
        } else {
@@ -45,18 +50,14 @@ impl NavigatedPage<RepetitionSettingsMessage> for RepetitionSettingsState {
        }
    }

-    fn navigated(&mut self) {
-    }
-}
-
-impl RepetitionSettingsState {
-    pub fn update(&mut self, message: RepetitionSettingsMessage) -> Task<RootMessage> {
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: RepetitionSettingsMessage) -> Task<RootMessage> {
        match message {
            Back => {}
            Save => {
                let mut state = self.state.lock().unwrap();
-                update_card_set(&mut self.set, &state.connection);
-                state.card_sets[self.index] = self.set.clone();
+                update_deck(&mut self.set, &state.connection);
+                state.decks[self.index] = self.set.clone();
            }
            SetName(new) => {
                self.set.name = new;
@@ -69,6 +70,7 @@ impl RepetitionSettingsState {
            }
            SetFilter(new) => {
                self.set.filter = new;
+                self.correct_filter = self.set.check_filter();
            }
            TryFilter => {
                let state = self.state.lock().unwrap();
@@ -76,24 +78,24 @@ impl RepetitionSettingsState {
                self.set.count = Some(count);
            }
            DeleteSet => {
-                if self.real_delete == false {
+                if !self.real_delete {
                    self.real_delete = true;
                    return Task::future(async {
                        tokio::time::sleep(Duration::from_millis(3000)).await;
-                        return RootMessage::RepetitionSettings(RevertDeleteSet);
+                        RootMessage::RepetitionSettings(RevertDeleteSet)
                    });
                }
                let mut state = self.state.lock().unwrap();
                delete_set(&self.set, &state.connection);
-                state.card_sets.remove(self.index);
+                state.decks.remove(self.index);
                return Task::done(RootMessage::RepetitionSettings(Back));
-            },
+            }
            RevertDeleteSet => self.real_delete = false,
        }
        Task::none()
    }

-    pub fn view(&self) -> Element<'_, RepetitionSettingsMessage> {
+    fn view(&self) -> Element<'_, RepetitionSettingsMessage> {
        back_overlay(
            iced::widget::column![
                scrollable(
@@ -115,7 +117,13 @@ impl RepetitionSettingsState {
                        .spacing(QUARTER_SPACING),
                        column![
                            text!("Фильтр"),
-                            text_input("", &self.set.filter).on_input(SetFilter),
+                            text_input("", &self.set.filter).style(|x, status| {
+                                let mut primary = Theme::default()(x, status);
+                                if !self.correct_filter {
+                                    primary.border.color = color!(255, 255, 0);
+                                }
+                                primary
+                            }).on_input(SetFilter),
                            button("Проверить фильтр")
                                .style(jl_button)
                                .on_press(TryFilter),
@@ -150,8 +158,10 @@ impl RepetitionSettingsState {
            Back,
        )
    }
+}

-    fn count_view(&self, set: &CardSetSettings) -> Element<'_, RepetitionSettingsMessage> {
+impl RepetitionSettingsState {
+    fn count_view(&self, set: &DeckSettings) -> Element<'_, RepetitionSettingsMessage> {
        if let Some(count) = set.count {
            return text!("Количество слов: {}", count).into();
        }
@@ -1,7 +1,7 @@
-use crate::data_provider::card_sets::{delete_set, update_card_set};
-use crate::data_provider::card_stats::load_stats_of_set;
+use crate::data_provider::card_sets::update_deck;
+use crate::data_provider::card_stats::{add_stat_list, load_stats_of_deck};
 use crate::history::HistoryState;
-use crate::lang::{SetOrderMode, WordData};
+use crate::lang::{AppendMode, CardStatistics, DeckSettings, Id, OrderMode};
 use crate::navigation::Page::{History, PreviousPage, Repetition, RepetitionSettings};
 use crate::navigation::{NavigatedPage, Page};
 use crate::repetition::RepetitionState;
@@ -9,141 +9,229 @@ use crate::repetition_settings::RepetitionSettingsState;
 use crate::repetitions::RepetitionsMessage::*;
 use crate::styling::*;
 use crate::{AppState, RootMessage};
-use chrono::{Days, Local};
-use iced::widget::button::{danger, Status};
+use chrono::{Days, Local, Utc};
+use hashbrown::{HashMap, HashSet};
 pub use iced::widget::button::{Catalog, Style};
-use iced::widget::container::bordered_box;
+use iced::widget::button::{Status, danger};
 use iced::widget::tooltip::Position::Top;
-use iced::widget::{button, column, container, lazy, radio, row, scrollable, space, svg, text, text_input, tooltip, Column, Row};
+use iced::widget::{
+    Column, Row, button, column, container, lazy, radio, row, scrollable, space, svg, text,
+    text_input, tooltip,
+};
 use iced::{Background, Border, Center, Color, Element, Fill, Length, Shadow, Task, Theme};
+use iced_core::Padding;
 use iced_core::border::Radius;
 use iced_core::svg::Handle;
-use iced_core::Padding;
-use rhai::{Engine, Scope};
+use std::ops::Deref;
 use std::sync::{Arc, Mutex};

 #[derive(Clone)]
 pub struct RepetitionsState {
-    selected_set: Option<usize>,
-    correct_filters: Vec<bool>,
-    pub state: Arc<Mutex<AppState>>,
+    word_id_index_map: HashMap<Id, usize>,
+    selected_deck_index: Option<usize>,
+    decks: Vec<DeckViewData>,
+    state: Arc<Mutex<AppState>>,
 }

 impl NavigatedPage<RepetitionsMessage> for RepetitionsState {
-    fn navigate(&self, message: &RepetitionsMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &RepetitionsMessage) -> Option<Page> {
        if let Back = message {
            Some(PreviousPage)
        } else if let GoToHistory = message {
-            let card_set;
-            {
-                card_set = self.state.lock().unwrap().card_sets[self.selected_set.unwrap()].id;
-            }
-            Some(History(HistoryState::new(card_set, self.state.clone())))
+            Some(History(HistoryState::new(
+                self.selected_deck().unwrap().id,
+                self.state.clone(),
+            )))
        } else if let GoToRepetition = message {
            let clone = self.state.clone();
-            let card_set;
+
+            let selected_set = self.selected_deck_mut().unwrap();
+            if selected_set.append_mode == AppendMode::Full {
+                Self::append_all_words(&mut clone.lock().unwrap(), selected_set);
+                selected_set.existing_words_indices = selected_set.available_words_indices.clone();
+            } else {
+                if selected_set
+                    .available_words_indices
+                    .as_ref()
+                    .unwrap()
+                    .is_empty()
+                    || selected_set
+                        .existing_words_indices
+                        .as_ref()
+                        .unwrap()
+                        .is_empty()
                {
-                card_set = self.state.lock().unwrap().card_sets[self.selected_set.unwrap()].clone();
+                    return None;
                }
-            Some(Repetition(RepetitionState::new(card_set, clone)))
+            }
+
+            Some(Repetition(RepetitionState::new(
+                selected_set.general_settings.clone(),
+                clone,
+            )))
        } else if let GoToSettings = message {
            Some(RepetitionSettings(RepetitionSettingsState::new(
-                self.selected_set.unwrap(),
+                self.selected_deck().unwrap().index.unwrap(),
                self.state.clone(),
            )))
        } else {
            None
        }
    }
-
    fn navigated(&mut self) {
-        self.selected_set = None;
+        let index = self.selected_deck_index.unwrap();
+        let state = self.state.lock().unwrap();
+        if let Some(global_deck) = state.decks.get(index) {
+            if global_deck.id != self.selected_deck().unwrap().id {
+                drop(state);
+                self.decks.remove(index);
+                self.clear_selection();
+            }
+        } else {
+            drop(state);
+            self.decks.remove(index);
+            self.clear_selection()
        }
    }
-
-impl RepetitionsState {
-    pub(crate) fn new(state: Arc<Mutex<AppState>>) -> RepetitionsState {
-        let count = state.lock().unwrap().card_sets.len();
-        RepetitionsState {
-            selected_set: None,
-            correct_filters: vec![true; count],
-            state,
-        }
-    }
-}
-
-impl RepetitionsState {
-    pub fn update(&mut self, message: RepetitionsMessage) -> Task<RootMessage> {
-        let mut state = self.state.lock().unwrap();
+    fn update(&mut self, message: RepetitionsMessage) -> Task<RootMessage> {
        match message {
            Next => {}
            Back => {}
            GoToRepetition => {}
            GoToHistory => {}
            GoToSettings => {}
+
            CreateSet => {
-                let index = state.card_sets.len() + 1;
-                state
-                    .card_sets
-                    .push(CardSetSettings::with_name(format!("Card set #{}", index)));
-                self.correct_filters.push(true);
+                let index = self.decks.len() + 1;
+                self.decks.push(DeckViewData {
+                    general_settings: DeckSettings::with_name(format!("Колода #{}", index)),
+                    existing_words_indices: None,
+                    available_words_indices: None,
+                    append_mode: Default::default(),
+                    index: None,
+                });
            }
            DeleteSet => {
-                let set = state.card_sets.remove(self.selected_set.unwrap());
-                self.correct_filters.remove(self.selected_set.unwrap());
-                self.selected_set = None;
-                delete_set(&set, &state.connection);
+                let index = self.selected_deck_index.unwrap();
+                self.clear_selection();
+                let deck = self.decks.remove(index);
+                if deck.id.is_valid() {
+                    let mut state = self.state.lock().unwrap();
+                    state.decks.remove(index);
+                    self.decks = self
+                        .decks
+                        .clone()
+                        .into_iter()
+                        .map(|mut deck| {
+                            deck.index = state.decks.iter().position(|d| d.id == deck.id);
+                            deck
+                        })
+                        .collect();
+                }
+            }
+            SetName(value) => {
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.name = value;
            }
            SelectSet(index) => {
-                self.selected_set = Some(index);
-                let mut set = state.card_sets.get(index).unwrap().clone();
-                set.update_worst_words(&state);
-                state.card_sets[index] = set;
+                self.select_deck(index);
+                let deck = self.selected_deck().unwrap();
+                if deck.existing_words_indices.is_none() {
+                    let state = self.state.lock().unwrap();
+                    let added: Vec<_> = load_stats_of_deck(deck, &state.connection)
+                        .iter()
+                        .map(|c| self.word_id_index_map[&c.word_id])
+                        .collect();
+                    let total = deck.get_word_list(&state);
+                    drop(state);
+                    let deck = self.selected_deck_mut().unwrap();
+                    deck.existing_words_indices = Some(added);
+                    deck.available_words_indices = Some(total);
                }
-            SetName(new) => {
-                state.card_sets[self.selected_set.unwrap()].name = new;
            }
            Save => {
-                for i in 0..state.card_sets.len() {
-                    self.correct_filters[i] = state.card_sets[i].check_filter();
+                let mut deck = self.selected_deck().unwrap().clone();
+                let mut state = self.state.lock().unwrap();
+                {
+                    update_deck(&mut deck.general_settings, &state.connection);
+                    if let Some(index) = deck.index {
+                        state.decks[index] = deck.general_settings.clone();
+                    } else {
+                        state.decks.push(deck.general_settings.clone());
+                        deck.index = Some(state.decks.len() - 1);
+                        self.decks[self.selected_deck_index.unwrap()] = deck.clone();
                    }
-
-                let set = &mut state.card_sets[self.selected_set.unwrap()].clone();
-
-                update_card_set(set, &state.connection);
-
-                state.card_sets[self.selected_set.unwrap()] = set.clone();
                }
-            SetForward(new) => {
-                state.card_sets[self.selected_set.unwrap()].forward = new;
            }
-            SetBackward(new) => {
-                state.card_sets[self.selected_set.unwrap()].backward = new;
+            SetForward(value) => {
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.forward = value;
            }
-            SetFilter(new) => {
-                state.card_sets[self.selected_set.unwrap()].filter = new;
+            SetBackward(value) => {
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.backward = value;
+            }
+            SetFilter(value) => {
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.filter = value;
            }
            TryFilter => {
-                let set = state.card_sets.get(self.selected_set.unwrap()).unwrap();
-                let count = set.get_word_list(&state).len();
-                state.card_sets[self.selected_set.unwrap()].count = Some(count);
+                let state = self.state.lock().unwrap();
+                let deck = self.selected_deck().unwrap();
+                let count = deck.get_word_list(&state).len();
+                drop(state);
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.count = Some(count);
            }
            SetOpenMode(mode) => {
-                state
-                    .card_sets
-                    .get_mut(self.selected_set.unwrap())
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.open_mode = mode;
+            }
+            SetAppendMode(mode) => {
+                let deck = self.selected_deck_mut().unwrap();
+                deck.append_mode = mode;
+            }
+            AppendWords(count) => {
+                let adding: Vec<usize>;
+                {
+                    {
+                        let deck = self.selected_deck().unwrap();
+                        let existing_words_indices = deck.existing_words_indices.as_ref().unwrap();
+                        let mut created_set = HashSet::with_capacity(existing_words_indices.len());
+                        existing_words_indices.iter().for_each(|c| {
+                            created_set.insert(c);
+                        });
+                        adding = deck
+                            .available_words_indices
+                            .as_ref()
                            .unwrap()
-                    .open_mode = mode;
+                            .iter()
+                            .filter(|c| !created_set.contains(c))
+                            .take(count)
+                            .cloned()
+                            .collect();
+                    }
+
+                    let deck = self.selected_deck_mut().unwrap();
+                    deck.existing_words_indices
+                        .as_mut()
+                        .unwrap()
+                        .append(&mut adding.clone());
+                }
+
+                let deck = self.selected_deck().unwrap();
+                let mut state = self.state.lock().unwrap();
+                Self::append_words(&mut state, &deck.general_settings, adding.into_iter());
            }
        }
        Task::none()
    }

-    pub fn view(&self) -> Element<'_, RepetitionsMessage> {
+    fn view(&self) -> Element<'_, RepetitionsMessage> {
        back_overlay(
            row![
                column![
-                    scrollable(self.sets_list()).height(Fill),
+                    scrollable(self.decks_list()).height(Fill),
                    button("Добавить")
                        .style(jl_button)
                        .width(Fill)
@@ -151,7 +239,7 @@ impl RepetitionsState {
                ]
                .spacing(DEFAULT_SPACING)
                .width(Length::FillPortion(1)),
-                self.selected_set_view(),
+                self.selected_deck_view(),
            ]
            .align_y(Center)
            .spacing(DEFAULT_SPACING)
@@ -161,9 +249,55 @@ impl RepetitionsState {
            Back,
        )
    }
+}

-    fn launch_delete_button(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
-        if set.id != 0 {
+impl RepetitionsState {
+    pub(crate) fn new(state: Arc<Mutex<AppState>>) -> RepetitionsState {
+        let state_ = state.lock().unwrap();
+        let mut map = HashMap::with_capacity(state_.dictionary.len());
+
+        state_
+            .dictionary
+            .iter()
+            .enumerate()
+            .for_each(|(index, word)| {
+                map.insert(word.id, index);
+            });
+
+        let decks = Self::get_decks_from_state(&state_);
+        drop(state_);
+        RepetitionsState {
+            word_id_index_map: map,
+            selected_deck_index: None,
+            decks,
+            state,
+        }
+    }
+
+    fn get_decks_from_state(state: &AppState) -> Vec<DeckViewData> {
+        state
+            .decks
+            .iter()
+            .enumerate()
+            .map(|(index, deck)| DeckViewData {
+                general_settings: deck.clone(),
+                existing_words_indices: None,
+                available_words_indices: None,
+                append_mode: Default::default(),
+                index: Some(index),
+            })
+            .collect()
+    }
+}
+
+impl RepetitionsState {
+    fn launch_delete_button(&self, deck: &DeckViewData) -> Element<'_, RepetitionsMessage> {
+        if deck.id.is_valid() {
+            if deck.append_mode == AppendMode::Manual
+                && deck.existing_words_indices.as_ref().unwrap().is_empty()
+            {
+                return text!("Добавьте карточки или измените фильтр").into();
+            }
            return row![
                space().width(Fill),
                button(text!("Начать повторение").width(200).center())
@@ -174,24 +308,15 @@ impl RepetitionsState {
        }
        button("Удалить").style(danger).on_press(DeleteSet).into()
    }
-
-    fn selected_set_view(&self) -> Element<'_, RepetitionsMessage> {
-        if let Some(index) = self.selected_set {
-            let set;
-            {
-                let state = self.state.lock().unwrap();
-                if state.card_sets.len() <= index {
-                    return space().width(Length::FillPortion(3)).into();
-                }
-                set = state.card_sets[index].clone();
-            }
+    fn selected_deck_view(&self) -> Element<'_, RepetitionsMessage> {
+        if let Some(deck) = &self.selected_deck() {
            return column![
                scrollable(
                    column![
                        column![
                            text!("Название набора"),
                            row![
-                                text_input("", &set.name).on_input(SetName),
+                                text_input("", &deck.name).on_input(SetName),
                                button(svg(Handle::from_memory(SETTINGS_ICON)))
                                    .width(43)
                                    .on_press(GoToSettings),
@@ -200,42 +325,58 @@ impl RepetitionsState {
                        ]
                        .spacing(QUARTER_SPACING),
                        {
-                            if set.id == 0 {
+                            if !deck.id.is_valid() {
                                column![
                                    column![
                                        text!("Передняя сторона"),
-                                        text_input("", &set.forward).on_input(SetForward),
+                                        text_input("", &deck.forward).on_input(SetForward),
                                    ]
                                    .spacing(QUARTER_SPACING),
                                    column![
                                        text!("Задняя сторона"),
-                                        text_input("", &set.backward).on_input(SetBackward),
+                                        text_input("", &deck.backward).on_input(SetBackward),
                                    ]
                                    .spacing(QUARTER_SPACING),
                                    column![
                                        text!("Фильтр"),
-                                        text_input("", &set.filter).on_input(SetFilter),
+                                        text_input("", &deck.filter).on_input(SetFilter),
                                        button("Проверить фильтр")
                                            .style(jl_button)
                                            .on_press(TryFilter),
-                                        self.count_view(&set),
+                                        self.count_view(deck),
                                    ]
                                    .spacing(QUARTER_SPACING),
                                ]
                                .spacing(DEFAULT_SPACING)
                            } else {
-                                self.filled_set_data_view(&set)
-                            }
-                        },
+                                column![
+                                    self.filled_deck_data_view(deck),
+                                    self.word_append_panel(deck),
                                    radio(
                                        "Обычный режим",
-                            SetOrderMode::Default,
-                            Some(set.open_mode),
+                                        OrderMode::Default,
+                                        Some(deck.open_mode),
+                                        SetOpenMode
+                                    ),
+                                    radio(
+                                        "Начать с плохих слов",
+                                        OrderMode::TrainWorstFirst,
+                                        Some(deck.open_mode),
+                                        SetOpenMode
+                                    ),
+                                    radio(
+                                        "Полностью случайно",
+                                        OrderMode::FullRandom,
+                                        Some(deck.open_mode),
                                        SetOpenMode
                                    ),
-                        self.words_words_view(&set),
                                    button("История").style(jl_button).on_press(GoToHistory),
                                ]
+                                .spacing(HALF_SPACING)
+                            }
+                        },
+                        // self.words_words_view(&set),
+                    ]
                    .spacing(DEFAULT_SPACING)
                    .padding(Padding {
                        top: 0.0,
@@ -247,40 +388,36 @@ impl RepetitionsState {
                .height(Fill),
                row![
                    button("Сохранить").style(jl_button).on_press(Save),
-                    self.launch_delete_button(&set)
-                ]
-                .spacing(DEFAULT_SPACING),
+                    self.launch_delete_button(deck)
                ]
                .spacing(DEFAULT_SPACING)
-            .width(Length::FillPortion(3))
+                .align_y(Center),
+            ]
+            .spacing(DEFAULT_SPACING)
+            .width(Length::FillPortion(2))
            .into();
        }
-        space().width(Length::FillPortion(3)).into()
+        space().width(Length::FillPortion(2)).into()
    }
-
-    fn filled_set_data_view(&self, set: &CardSetSettings) -> Column<'_, RepetitionsMessage> {
-        column![self.activity_bar(set)].align_x(Center)
+    fn filled_deck_data_view(&self, deck: &DeckSettings) -> Column<'_, RepetitionsMessage> {
+        column![self.activity_bar(deck), self.count_comparator_view()]
+            .align_x(Center)
            .width(Fill)
            .spacing(DEFAULT_SPACING)
-            .into()
    }
-    fn activity_bar(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
+    fn activity_bar(&self, deck: &DeckSettings) -> Element<'_, RepetitionsMessage> {
        const MAX_DAY_COUNT: f32 = 128.0;

        let state = self.state.lock().unwrap();
-        let history = state.activity.get(&set.id);
+        let history = state.activity.get(&deck.id);
        let mut counts: Vec<u32> = vec![0; 30 * 7];
        let now = Local::now().date_naive();

-
        if let Some(history) = history {
            for (date, activity) in history {
                let distance = now - *date;
                let index = counts.len() as i64 - distance.num_days() - 1;
                
-                if index == 210 {
-                    println!("invalid index")
-                }
                if index < 0 {
                    continue;
                }
@@ -299,8 +436,7 @@ impl RepetitionsState {
                })
                .spacing(QUARTER_SPACING);

-
-            let mut iter = counts.into_iter();
+            let mut iter = counts.iter();
            for i in 0..30 {
                let mut column = Column::new().spacing(QUARTER_SPACING);

@@ -308,13 +444,17 @@ impl RepetitionsState {
                    let value = *iter.next().unwrap() as f32;
                    let k = (value / MAX_DAY_COUNT).min(1.0) * 0.9 + 0.1;

-                    let date = now.clone().checked_sub_days(Days::new(30 * 7 - i * 7 - j - 1)).unwrap();
+                    let date = (*now)
+                        .checked_sub_days(Days::new(30 * 7 - i * 7 - j - 1))
+                        .unwrap();

                    column = column.push(tooltip(
                        iced::widget::container(space().height(15).width(15)).style(
                            move |x: &Theme| container::Style {
                                text_color: None,
-                                background: Some(Background::Color(x.palette().primary.scale_alpha(k))),
+                                background: Some(Background::Color(
+                                    x.palette().primary.scale_alpha(k),
+                                )),
                                border: Border {
                                    color: Default::default(),
                                    width: 0.0,
@@ -331,67 +471,81 @@ impl RepetitionsState {

                row = row.push(column);
            }
-            scrollable(column!["Карта активности", row].spacing(QUARTER_SPACING).align_x(Center))
-        }).into()
-
-    }
-
-    fn words_words_view(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
-        column![
-            text!("Худшие слова"),
-            container(scrollable(self.worst_words_list(&set)).height(200)).style(bordered_box),
-            radio(
-                "Начать с плохих слов",
-                SetOrderMode::TrainWorstFirst,
-                Some(set.open_mode),
-                SetOpenMode
-            ),
-            radio(
-                "Полностью случайно",
-                SetOrderMode::FullRandom,
-                Some(set.open_mode),
-                SetOpenMode
+            scrollable(
+                column!["Карта активности", row]
+                    .spacing(QUARTER_SPACING)
+                    .align_x(Center),
            )
-        ]
-        .spacing(DEFAULT_SPACING)
+        })
        .into()
    }
-
-    fn worst_words_list(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
-        let mut column = Column::new();
-
-        for word in set.worst_words_list.clone().unwrap() {
-            column = column.push(text!("{} | {}", &word.key, &word.value));
+    fn word_append_panel(&self, deck: &DeckViewData) -> Element<'_, RepetitionsMessage> {
+        column![
+            text!("Режим добавления карточек"),
+            row![
+                radio(
+                    "Добавлять все доступные",
+                    AppendMode::Full,
+                    Some(deck.append_mode),
+                    SetAppendMode
+                ),
+                radio(
+                    "Добавлять вручную",
+                    AppendMode::Manual,
+                    Some(deck.append_mode),
+                    SetAppendMode
+                )
+            ]
+            .spacing(HALF_SPACING),
+            self.adder_panel(deck),
+        ]
+        .spacing(HALF_SPACING)
+        .into()
+    }
+    fn adder_panel(&self, deck: &DeckViewData) -> Element<'_, RepetitionsMessage> {
+        match deck.append_mode {
+            AppendMode::Full => space().into(),
+            AppendMode::Manual => row![
+                button("+5").on_press(AppendWords(5)),
+                button("+10").on_press(AppendWords(10)),
+                button("+15").on_press(AppendWords(15)),
+                button("+20").on_press(AppendWords(20))
+            ]
+            .spacing(HALF_SPACING)
+            .into(),
        }
-        column.into()
    }

-    fn count_view(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
-        if let Some(count) = set.count {
+    fn count_comparator_view(&self) -> Element<'_, RepetitionsMessage> {
+        let selected_deck = self.selected_deck().unwrap();
+        let now = selected_deck.existing_words_indices.as_ref().unwrap().len();
+        let available = selected_deck
+            .available_words_indices
+            .as_ref()
+            .unwrap()
+            .len();
+        text!("{} слова добавлено из {}", now, available).into()
+    }
+    fn count_view(&self, deck: &DeckSettings) -> Element<'_, RepetitionsMessage> {
+        if let Some(count) = deck.count {
            return text!("Количество слов: {}", count).into();
        }
        space().into()
    }
-
-    fn sets_list(&self) -> Column<'_, RepetitionsMessage> {
+    fn decks_list(&self) -> Column<'_, RepetitionsMessage> {
        let mut column = Column::new();
-        let mut i = 0;
-        let sets = &self.state.lock().unwrap().card_sets;
-        for set in sets {
+
+        for (i, deck) in self.decks.iter().enumerate() {
            column = column.push(
-                button(text!("{}", set.name.clone()))
-                    .on_press_with(move || SelectSet(i.clone()))
+                button(text!("{}", &deck.name))
+                    .on_press_with(move || SelectSet(i))
                    .style(move |_x: &Theme, status: Status| Style {
                        background: if status == Status::Hovered {
                            Some(Background::Color(Color::WHITE.scale_alpha(0.2)))
                        } else {
                            None
                        },
-                        text_color: if self.correct_filters[i.clone()] {
-                            _x.palette().primary
-                        } else {
-                            _x.palette().warning
-                        },
+                        text_color: _x.palette().primary,
                        border: Border {
                            color: Default::default(),
                            width: 0.0,
@@ -401,13 +555,65 @@ impl RepetitionsState {
                        snap: false,
                    }),
            );
-            i += 1;
        }

        column
    }
 }

+impl RepetitionsState {
+    fn append_all_words(state: &mut AppState, deck: &DeckViewData) {
+        let existing = deck.existing_words_indices.as_ref().unwrap();
+        let mut created_set = HashSet::with_capacity(existing.len());
+        existing.iter().for_each(|c| {
+            created_set.insert(c);
+        });
+        let required = deck
+            .available_words_indices
+            .as_ref()
+            .unwrap()
+            .iter()
+            .filter(|i| !created_set.contains(i))
+            .cloned();
+        Self::append_words(state, deck, required);
+    }
+    fn append_words(state: &mut AppState, deck: &DeckSettings, indices: impl Iterator<Item = usize>) {
+        let words = &state.dictionary;
+        let stats = &mut indices
+            .map(|i| {
+                let word = &words[i];
+                CardStatistics {
+                    id: 0.into(),
+                    word_id: word.id,
+                    last_open: Utc::now(),
+                    score: 1,
+                    set_id: deck.id,
+                }
+            })
+            .collect::<Vec<_>>();
+
+        if !stats.is_empty() {
+            add_stat_list(stats, &mut state.connection);
+        }
+    }
+
+    fn select_deck(&mut self, index: usize) {
+        if self.decks.get(index).is_some() {
+            self.selected_deck_index = Some(index);
+        }
+    }
+
+    fn selected_deck(&self) -> Option<&DeckViewData> {
+        self.decks.get(self.selected_deck_index?)
+    }
+    fn selected_deck_mut(&mut self) -> Option<&mut DeckViewData> {
+        self.decks.get_mut(self.selected_deck_index?)
+    }
+
+    fn clear_selection(&mut self) {
+        self.selected_deck_index = None;
+    }
+}
 #[derive(Clone)]
 pub enum RepetitionsMessage {
    Next,
@@ -422,111 +628,25 @@ pub enum RepetitionsMessage {
    SetBackward(String),
    SetFilter(String),
    TryFilter,
-    SetOpenMode(SetOrderMode),
+    SetOpenMode(OrderMode),
+    SetAppendMode(AppendMode),
    GoToHistory,
    GoToSettings,
+    AppendWords(usize),
 }

 #[derive(Clone)]
-pub struct CardSetSettings {
-    pub id: u32,
-    pub name: String,
-    pub forward: String,
-    pub backward: String,
-    pub filter: String,
-    pub count: Option<usize>,
-    pub worst_words_list: Option<Vec<WordData>>,
-    pub open_mode: SetOrderMode,
+struct DeckViewData {
+    general_settings: DeckSettings,
+    existing_words_indices: Option<Vec<usize>>,
+    available_words_indices: Option<Vec<usize>>,
+    append_mode: AppendMode,
+    index: Option<usize>,
 }
+impl Deref for DeckViewData {
+    type Target = DeckSettings;

-impl CardSetSettings {
-    fn with_name(name: String) -> CardSetSettings {
-        CardSetSettings {
-            id: 0,
-            name,
-            forward: "".to_string(),
-            backward: "".to_string(),
-            filter: "true".to_string(),
-            count: None,
-            worst_words_list: None,
-            open_mode: SetOrderMode::Default,
-        }
-    }
-
-    fn check_filter(&self) -> bool {
-        let engine = Engine::new();
-        let ast = engine.compile(&self.filter);
-        ast.is_ok()
-    }
-
-    pub fn get_word_list(&self, state: &AppState) -> Vec<WordData> {
-        let mut list = vec![];
-        let engine = Engine::new();
-        let ast = engine.compile(&self.filter);
-        if ast.is_err() {
-            return list;
-        }
-
-        let ast = ast.unwrap();
-
-        let groups = &state.word_groups;
-
-        for word in &state.dictionary {
-            let mut more = rhai::Map::new();
-            for iced in &word.additional {
-                more.insert(iced.0.clone().into(), iced.1.clone().into());
-            }
-            let mut scope = Scope::new();
-            scope
-                .push_constant("key", word.key.clone())
-                .push_constant("value", word.value.clone())
-                .push_constant("tags", word.tags.clone())
-                .push_constant("more", more)
-                .push_constant(
-                    "group",
-                    groups
-                        .iter()
-                        .find(|g| g.id == word.group_id)
-                        .cloned()
-                        .unwrap()
-                        .name,
-                );
-
-            let result = engine.eval_ast_with_scope::<bool>(&mut scope, &ast);
-            if result.is_ok() && result.unwrap() {
-                list.push(word.clone());
-            }
-        }
-
-        list
-    }
-
-    pub fn require_speech(&self) -> bool {
-        self.forward == "speech" || self.backward == "speech"
-    }
-
-    fn update_worst_words(&mut self, state: &AppState) {
-        if let Some(_) = self.worst_words_list {
-            return;
-        }
-
-        let connection = &state.connection;
-        let mut stats = load_stats_of_set(self, connection);
-        stats.sort_by_key(|s| s.calculated_score() as i32);
-        let avg = stats.iter().map(|s| s.calculated_score()).sum::<f32>() / stats.len() as f32;
-        let avg = avg * 0.7;
-        let bad: Vec<WordData> = stats
-            .iter()
-            .take_while(|word| word.calculated_score() < avg)
-            .map(|stat| {
-                state.dictionary[state
-                    .dictionary
-                    .binary_search_by_key(&stat.word_id, |x| x.id)
-                    .unwrap()]
-                .clone()
-            })
-            .collect();
-
-        self.worst_words_list = Some(bad.clone());
+    fn deref(&self) -> &Self::Target {
+        &self.general_settings
    }
 }
@@ -36,7 +36,7 @@ pub enum SelectorMessage {
 }

 impl NavigatedPage<SelectorMessage> for SelectorState {
-    fn navigate(&self, message: &SelectorMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &SelectorMessage) -> Option<Page> {
        if let SelectorMessage::Goto = message {
            return if self.is_writing {
                let writing = WritingState::new(&self.set);
@@ -62,19 +62,8 @@ impl NavigatedPage<SelectorMessage> for SelectorState {
        None
    }

-    fn navigated(&mut self) {
-    }
-}
-
-impl SelectorState {
-    pub fn new(state: Arc<Mutex<AppState>>) -> Self {
-        Self {
-            set: Default::default(),
-            is_writing: false,
-            state,
-        }
-    }
-    pub fn update(&mut self, message: SelectorMessage) -> Task<RootMessage> {
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: SelectorMessage) -> Task<RootMessage> {
        match message {
            SelectorMessage::Change => match self.set.chars_type {
                KanaType::Katakana => self.set = KanaSet::hiragana(),
@@ -86,19 +75,7 @@ impl SelectorState {
        }
        Task::none()
    }
-
-    fn nav_style(theme: &Theme, status: Status) -> Style {
-        let mut basic = button::text(theme, status);
-        basic.background = if status == Status::Hovered {
-            Some(Background::Color(Color::WHITE.scale_alpha(0.1)))
-        } else {
-            None
-        };
-        basic.border.radius = BUTTON_RADIUS.into();
-        basic
-    }
-
-    pub fn view(&self) -> Element<'_, SelectorMessage> {
+    fn view(&self) -> Element<'_, SelectorMessage> {
        container(
            iced::widget::column![
                row![
@@ -132,6 +109,27 @@ impl SelectorState {
        .padding(10)
        .into()
    }
+}
+
+impl SelectorState {
+    pub fn new(state: Arc<Mutex<AppState>>) -> Self {
+        Self {
+            set: Default::default(),
+            is_writing: false,
+            state,
+        }
+    }
+
+    fn nav_style(theme: &Theme, status: Status) -> Style {
+        let mut basic = button::text(theme, status);
+        basic.background = if status == Status::Hovered {
+            Some(Background::Color(Color::WHITE.scale_alpha(0.1)))
+        } else {
+            None
+        };
+        basic.border.radius = BUTTON_RADIUS.into();
+        basic
+    }

    fn rows_selector(&self) -> Element<'_, SelectorMessage> {
        let mut row = Row::new();
@@ -1,10 +1,10 @@
 use crate::repetitions::Style;
+use iced::Element;
 use iced::border::Radius;
 use iced::widget::button::*;
 use iced::widget::{button, container};
-use iced::Element;
-use iced_core::alignment::Horizontal::Left;
 use iced_core::Length::Fill;
+use iced_core::alignment::Horizontal::Left;
 use iced_core::{Border, Theme};

 pub const HALF_SPACING: f32 = DEFAULT_SPACING / 2.0;
@@ -4,7 +4,7 @@ use crate::navigation::Page::PreviousPage;
 use crate::navigation::{NavigatedPage, Page};
 use crate::styling::*;
 use crate::sync::SyncMessage::*;
-use crate::{fill_state, AppState, RootMessage};
+use crate::{AppState, RootMessage, fill_state};
 use iced::widget::button::danger;
 use iced::widget::container::rounded_box;
 use iced::widget::{button, column, container, progress_bar, row, space, text, toggler};
@@ -12,7 +12,6 @@ use iced::{Center, Element, Fill, Font, Length, Task};
 use std::sync::{Arc, Mutex};
 use std::time::Duration;

-
 #[derive(Clone)]
 pub enum SyncMessage {
    Back,
@@ -38,7 +37,7 @@ pub struct SyncState {
 }

 impl NavigatedPage<SyncMessage> for SyncState {
-    fn navigate(&self, message: &SyncMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &SyncMessage) -> Option<Page> {
        if let Back = message
            && !self.frozen
        {
@@ -49,23 +48,7 @@ impl NavigatedPage<SyncMessage> for SyncState {
    }

    fn navigated(&mut self) {}
-}
-
-impl SyncState {
-    pub fn new(state: Arc<Mutex<AppState>>) -> SyncState {
-        let auto_fetch;
-        {
-            auto_fetch = state.lock().unwrap().sync_data.auto_web_fetch;
-        }
-        Self {
-            auto_fetch,
-            state,
-            frozen: false,
-            progress: 0.0,
-        }
-    }
-
-    pub fn update(&mut self, message: SyncMessage) -> Task<RootMessage> {
+    fn update(&mut self, message: SyncMessage) -> Task<RootMessage> {
        match message {
            Back => {}
            CopyKey => {
@@ -83,7 +66,7 @@ impl SyncState {
            }
            KeyCopied => {}
            IdReceived(new_id) => {
-                if validate_id(&new_id) == false {
+                if !validate_id(&new_id) {
                    return Task::none();
                }
                let mut state = self.state.lock().unwrap();
@@ -136,7 +119,7 @@ impl SyncState {
                let mut state = self.state.lock().unwrap();
                state.sync_data = updated_state.sync_data;
                state.connection = updated_state.connection;
-                state.card_sets = updated_state.card_sets;
+                state.decks = updated_state.decks;
                state.dictionary = updated_state.dictionary;
                state.word_groups = updated_state.word_groups;
            }
@@ -146,19 +129,22 @@ impl SyncState {
                state.sync_data.key = None;
                delete_settings("SYNC_KEY".to_string(), &state.connection);
                delete_settings("AUTO_WEB_FETCH".to_string(), &state.connection);
-
            }
            SwitchAutoSync => {
                self.auto_fetch = !self.auto_fetch;
                let mut state = self.state.lock().unwrap();
                state.sync_data.auto_web_fetch = self.auto_fetch;
-                set_setting("AUTO_WEB_FETCH".to_string(), self.auto_fetch.to_string(), &state.connection);
+                set_setting(
+                    "AUTO_WEB_FETCH".to_string(),
+                    self.auto_fetch.to_string(),
+                    &state.connection,
+                );
            }
        }
        Task::none()
    }

-    pub fn view(&self) -> Element<'_, SyncMessage> {
+    fn view(&self) -> Element<'_, SyncMessage> {
        back_overlay(
            row![space().width(Fill), self.sync_column(), space().width(Fill)]
                .spacing(DEFAULT_SPACING)
@@ -167,6 +153,21 @@ impl SyncState {
            Back,
        )
    }
+}
+
+impl SyncState {
+    pub fn new(state: Arc<Mutex<AppState>>) -> SyncState {
+        let auto_fetch;
+        {
+            auto_fetch = state.lock().unwrap().sync_data.auto_web_fetch;
+        }
+        Self {
+            auto_fetch,
+            state,
+            frozen: false,
+            progress: 0.0,
+        }
+    }

    fn sync_column(&self) -> Element<'_, SyncMessage> {
        let network_view: Element<'_, SyncMessage> = if self.frozen {
@@ -197,7 +198,9 @@ impl SyncState {
                        button("↓ Скачать").style(jl_button).on_press(GetLast)
                    ]
                    .spacing(DEFAULT_SPACING),
-                    toggler(self.auto_fetch).label("Автоматическая синхронизация").on_toggle(|_| SwitchAutoSync),
+                    toggler(self.auto_fetch)
+                        .label("Автоматическая синхронизация")
+                        .on_toggle(|_| SwitchAutoSync),
                    container(network_view).width(Fill),
                    button("Отключить синхронизацию")
                        .style(danger)
@@ -6,7 +6,7 @@ use crate::styling::*;
 use crate::word::WordMessage::*;
 use crate::{AppState, RootMessage};
 use iced::widget::button::danger;
-use iced::widget::{button, column, row, rule, scrollable, space, text, text_input};
+use iced::widget::{button, column, row, rule, scrollable, text, text_input};
 use iced::{Element, Fill, Task};
 use std::sync::{Arc, Mutex};

@@ -18,7 +18,7 @@ pub struct WordState {
 }

 impl NavigatedPage<WordMessage> for WordState {
-    fn navigate(&self, message: &WordMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &WordMessage) -> Option<Page> {
        if let Back = message {
            Some(PreviousPage)
        } else {
@@ -26,18 +26,8 @@ impl NavigatedPage<WordMessage> for WordState {
        }
    }

-    fn navigated(&mut self) {
-    }
-}
-
-impl WordState {
-    pub(crate) fn new(word: WordData, index: usize, state: Arc<Mutex<AppState>>) -> WordState {
-        WordState { state, index, word }
-    }
-}
-
-impl WordState {
-    pub fn update(&mut self, message: WordMessage) -> Task<RootMessage> {
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: WordMessage) -> Task<RootMessage> {
        match message {
            Back => {}
            Save => {
@@ -59,11 +49,9 @@ impl WordState {
            SetValue(n) => {
                self.word.value = n;
            }
-            SetAdditional(key, value) => match key.as_str() {
-                _ => {
+            SetAdditional(key, value) => {
                self.word.additional.insert(key, value.clone());
            }
-            },
            AddAdditional(key) => {
                self.word.additional.insert(key, "".to_string());
            }
@@ -74,7 +62,7 @@ impl WordState {
        Task::none()
    }

-    pub fn view(&self) -> Element<'_, WordMessage> {
+    fn view(&self) -> Element<'_, WordMessage> {
        let mut fast_add = row![];
        if !self.word.additional.contains_key("reading") {
            fast_add = fast_add.push(
@@ -137,38 +125,40 @@ impl WordState {
            Back,
        )
    }
+}

+impl WordState {
+    pub(crate) fn new(word: WordData, index: usize, state: Arc<Mutex<AppState>>) -> WordState {
+        WordState { state, index, word }
+    }
+}
+
+impl WordState {
    fn get_view_for_more(&self, value: (&String, &String)) -> Element<'_, WordMessage> {
        match value.0.as_str() {
-            "reading" => self.reading_field(value),
-            "description" => self.description_field(value),
-            "context" => self.context_field(value),
-            _ => space().into(),
+            "reading" => self.reading_field(value.1),
+            "description" => self.description_field(value.1),
+            "context" => self.context_field(value.1),
+            _ => self.additional_field(value.1, value.0.clone(), value.0.clone()),
        }
    }

-    fn reading_field(&self, value: (&String, &String)) -> Element<'_, WordMessage> {
+    fn reading_field(&self, value: &str) -> Element<'_, WordMessage> {
        self.additional_field(value, "Чтение слова".to_string(), "reading".to_string())
    }

-    fn description_field(&self, value: (&String, &String)) -> Element<'_, WordMessage> {
+    fn description_field(&self, value: &str) -> Element<'_, WordMessage> {
        self.additional_field(value, "Описание".to_string(), "description".to_string())
    }

-    fn context_field(&self, value: (&String, &String)) -> Element<'_, WordMessage> {
+    fn context_field(&self, value: &str) -> Element<'_, WordMessage> {
        self.additional_field(value, "В контексте".to_string(), "context".to_string())
    }
-
-    fn additional_field(
-        &self,
-        value: (&String, &String),
-        name: String,
-        id: String,
-    ) -> Element<'_, WordMessage> {
+    fn additional_field(&self, value: &str, name: String, id: String) -> Element<'_, WordMessage> {
        column![
            text!("{}", name),
            row![
-                text_input(id.clone().as_str(), &value.1)
+                text_input(id.clone().as_str(), value)
                    .on_input({
                        let value = id.clone();
                        move |string| SetAdditional(value.clone(), string)
@@ -1,10 +1,10 @@
+use crate::RootMessage;
 use crate::lang::KanaSet;
 use crate::navigation::Page::PreviousPage;
 use crate::navigation::{NavigatedPage, Page};
 use crate::styling::*;
-use crate::RootMessage;
 use iced::widget::*;
-use iced::{alignment, Element, Fill, Task};
+use iced::{Element, Fill, Task, alignment};
 use rand::seq::SliceRandom;

 #[derive(Clone, Debug)]
@@ -19,7 +19,7 @@ pub struct WritingState {
 }

 impl NavigatedPage<WritingMessage> for WritingState {
-    fn navigate(&self, message: &WritingMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &WritingMessage) -> Option<Page> {
        if let WritingMessage::Back = message {
            Some(PreviousPage)
        } else {
@@ -27,65 +27,16 @@ impl NavigatedPage<WritingMessage> for WritingState {
        }
    }

-    fn navigated(&mut self) {
-    }
-}
-
-impl WritingState {
-    pub(crate) fn new(set: &KanaSet) -> WritingState {
-        let mut list = set.list();
-        list.shuffle(&mut rand::rng());
-        WritingState {
-            kana: "".to_string(),
-            set: list.clone(),
-            original_set: list,
-            kana_total: "".to_string(),
-            roman_total: "".to_string(),
-            next_text: "Дальше".to_string(),
-            show_all: false,
-        }
-    }
-}
-
-impl WritingState {
-    pub fn update(&mut self, message: WritingMessage) -> Task<RootMessage> {
+    fn navigated(&mut self) {}
+    fn update(&mut self, message: WritingMessage) -> Task<RootMessage> {
        match message {
-            WritingMessage::Back => todo!(),
+            WritingMessage::Back => {},
            WritingMessage::Next => self.next(),
            WritingMessage::SwitchShowMode(b) => self.show_all = b,
        }
        Task::none()
    }
-
-    fn next(&mut self) {
-        if self.set.is_empty() {
-            self.kana = "".to_string();
-            self.roman_total = "".to_string();
-            self.kana_total = "".to_string();
-
-            self.set = self.original_set.clone();
-            self.set.shuffle(&mut rand::rng());
-            return;
-        }
-
-        if self.show_all {
-            if self.set.is_empty() == false && self.kana_total.is_empty() == false {
-                self.set.clear();
-            }
-            for pair in &self.set {
-                self.kana = "---".to_string();
-                self.roman_total += &*format!("{} ", &pair.1.clone()).to_string();
-                self.kana_total += &*format!("{} ", &pair.0).to_string();
-            }
-        } else {
-            let current = self.set.pop().unwrap();
-            self.kana_total += &*format!("{} ", &current.0).to_string();
-            self.roman_total += &*format!("{} ", &current.1.clone()).to_string();
-            self.kana = current.1;
-        }
-    }
-
-    pub fn view(&self) -> Element<'_, WritingMessage> {
+    fn view(&self) -> Element<'_, WritingMessage> {
        container(
            iced::widget::column![
                checkbox(self.show_all)
@@ -112,6 +63,52 @@ impl WritingState {
        .padding(10)
        .into()
    }
+}
+
+impl WritingState {
+    pub(crate) fn new(set: &KanaSet) -> WritingState {
+        let mut list = set.list();
+        list.shuffle(&mut rand::rng());
+        WritingState {
+            kana: "".to_string(),
+            set: list.clone(),
+            original_set: list,
+            kana_total: "".to_string(),
+            roman_total: "".to_string(),
+            next_text: "Дальше".to_string(),
+            show_all: false,
+        }
+    }
+}
+
+impl WritingState {
+    fn next(&mut self) {
+        if self.set.is_empty() {
+            self.kana = "".to_string();
+            self.roman_total = "".to_string();
+            self.kana_total = "".to_string();
+
+            self.set = self.original_set.clone();
+            self.set.shuffle(&mut rand::rng());
+            return;
+        }
+
+        if self.show_all {
+            if !self.set.is_empty() && !self.kana_total.is_empty() {
+                self.set.clear();
+            }
+            for pair in &self.set {
+                self.kana = "---".to_string();
+                self.roman_total += &*format!("{} ", pair.1.clone()).to_string();
+                self.kana_total += &*format!("{} ", pair.0).to_string();
+            }
+        } else {
+            let current = self.set.pop().unwrap();
+            self.kana_total += &*format!("{} ", current.0).to_string();
+            self.roman_total += &*format!("{} ", current.1.clone()).to_string();
+            self.kana = current.1;
+        }
+    }

    fn answers(&self) -> Element<'_, WritingMessage> {
        if self.set.is_empty() {
Author	SHA1	Message	Date
micialware	01f0999772	Remove many unwrap	2026-08-19 19:21:21 +03:00
micialware	39f8845119	Rewrite for dictionary rw indexer	2026-08-19 18:49:32 +03:00
micialware	e7023752f1	Rewrite for dictionary indexer	2026-08-19 18:00:03 +03:00
micialware	746071125a	Remove unnecessary into()	2026-08-19 17:39:52 +03:00
micialware	bb673ed7c7	Remove debug from repetitions.rs	2026-08-19 17:34:48 +03:00
micialware	98c8093961	Fixing some code problems	2026-08-19 17:33:22 +03:00
micialware	a4d77196d0	Small code edit	2026-08-18 17:47:37 +03:00
micialware	4187344a29	Filter check on edit page	2026-08-18 17:45:50 +03:00
micialware	d3c28179b6	Use is_valid for Id	2026-08-18 17:31:19 +03:00
micialware	3cd7c12baa	Fixing bugs	2026-08-18 17:15:03 +03:00
micialware	306febc514	Rename set to deck in repetitions.rs	2026-08-18 15:16:51 +03:00
micialware	80785ff9e6	Rewrite repetitions page	2026-08-18 15:13:10 +03:00
micialware	9e28b05167	More migration code	2026-08-18 12:58:02 +03:00
micialware	97c76350e1	Migrate to Id type	2026-08-18 12:47:06 +03:00
micialware	99b3818181	Rename and clear bad code	2026-08-18 12:14:35 +03:00
micialware	3fcbd235cf	Migrate to hashbrown structures	2026-08-16 23:50:14 +03:00
micialware	dcf7352553	Fix windows autofetch	2026-08-16 23:42:56 +03:00
micialware	11b38479c1	Fixing partial adding bug	2026-08-16 14:23:00 +03:00
micialware	51c8d7be74	Adding words by parts	2026-08-15 21:32:24 +03:00
micialware	8f789facd7	Add anki21 format and fix multi import bug	2026-08-15 20:16:48 +03:00
micialware	e676898135	Clippy code cleanup	2026-08-15 13:22:59 +03:00
micialware	9917702c4c	Fix warnings	2026-08-14 23:52:48 +03:00
micialware	0332e40feb	Clear some logs and minimize binary file size	2026-08-14 23:49:37 +03:00
micialware	eb6c9c5084	Optimized again dictionary page and working import	2026-08-14 23:03:15 +03:00
micialware	17e06256c1	loading inner collections	2026-08-14 11:17:22 +03:00
micialware	4d0788e0f5	Import page base	2026-08-13 22:38:48 +03:00
micialware	4ca7aa7044	Add basic methods into NavigatedPage	2026-08-13 22:03:47 +03:00