Fixing Into<u32> clippy

Cargo.lock

@@ -73,6 +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"
@@ -1750,6 +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",
 ]
 
@@ -2306,17 +2314,19 @@ dependencies = [
  "chrono",
  "criterion",
  "dirs",
+ "hashbrown 0.17.1",
  "hex",
  "iced",
  "iced_core",
  "mimalloc",
+ "parking_lot",
  "rand",
+ "rayon",
  "reqwest",
  "rfd",
  "rhai",
  "rodio",
  "rusqlite",
- "serde",
  "serde_json",
  "sha2",
  "tokio",
@@ -2783,6 +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"
@@ -3986,6 +4005,7 @@ checksum = "dd4dd0f8c36625202a4ba553c416c19b719947cd2a31d1bda06126e4a5727daf"
 dependencies = [
  "ahash",
  "bitflags 2.10.0",
+ "no-std-compat",
  "num-traits",
  "once_cell",
  "rhai_codegen",
@@ -4582,6 +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"

Cargo.toml

@@ -8,9 +8,8 @@ iced = { version = "0.14.0", features = ["tokio", "svg", "lazy"]}
 iced_core = "0.14.0"
 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"] }
@@ -22,6 +21,9 @@ zstd = "0.13.3"
 zip = "8.6.0"
 rfd = "0.17.2"
 mimalloc = "0.1.52"
+hashbrown = "0.17.1"
+rayon = "1.12.0"
+parking_lot = "0.12.5"
 
 [profile.super-release]
 inherits = "release"
@@ -32,10 +34,10 @@ strip = true
 panic = "abort"
 
 [dev-dependencies]
-criterion = "0.8.2"
+criterion = { version = "0.8.2", features = ["html_reports"] }
 
 [[bench]]
-name = "split_bench"  # Имя файла в benches/ без расширения
+name = "map_bench"
-harness = false       # Отключаем стандартный тестовый раннер
+harness = false
 
 

benches/map_bench.rs

@@ -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);

benches/split_bench.rs

@@ -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);

src/data_provider/card_sets.rs

@@ -1,14 +1,14 @@
-use crate::lang::SetOrderMode;
+use crate::lang::{DeckSettings, OrderMode};
-use crate::repetitions::CardSetSettings;
+
 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();
@@ -29,8 +29,8 @@ 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
+    let index : u32 = connection
         .query_row(
             "INSERT INTO card_set (name, forward, backward, filter) VALUES (?1, ?2, ?3, ?4) RETURNING id",
             (
@@ -41,14 +41,14 @@ pub fn add_set(set: &mut CardSetSettings, connection: &Connection) {
             ),
             |row| row.get(0)
         )
-        .unwrap_or_else(|e| {println!("{}", e); 0});
+        .unwrap();
 
-    set.id = index;
+    set.id = index.into();
 }
 
-pub fn update_card_set(set: &mut CardSetSettings, connection: &Connection) {
+pub fn update_deck(set: &mut DeckSettings, connection: &Connection) {
-    if set.id == 0 {
+    if !set.id.is_valid() {
-        add_set(set, &connection);
+        add_set(set, connection);
     } else {
         connection
             .execute(
@@ -61,18 +61,15 @@ pub fn update_card_set(set: &mut CardSetSettings, connection: &Connection) {
                     &set.id
                 ),
             )
-            .unwrap_or_else(|e| {println!("{}", e); 0});
+            .unwrap();
     }
 }
 
-pub fn delete_set(set: &CardSetSettings, connection: &Connection) {
+pub fn delete_set(set: &DeckSettings, connection: &Connection) {
-    if set.id == 0 {
+    if !set.id.is_valid() {
         return;
     }
     connection
         .execute("DELETE FROM card_set WHERE id = ?1", (&set.id,))
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }

src/data_provider/card_stats.rs

@@ -1,9 +1,8 @@
-use crate::lang::CardStatistics;
+use crate::lang::{CardStatistics, DeckSettings};
-use crate::repetitions::CardSetSettings;
+use rusqlite::{Connection, params};
-use rusqlite::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();
@@ -27,67 +26,41 @@ pub fn load_stats_of_set(set: &CardSetSettings, connection: &Connection) -> Vec<
     buffer
 }
 
-pub fn add_stat_list(stat: &mut Vec<CardStatistics>, connection: &Connection) {
+pub fn add_stat_list(stats: &mut [CardStatistics], connection: &mut Connection) {
-    let inserting = stat
+    let time = Instant::now();
-        .iter()
+    let tx = connection.transaction().unwrap();
-        .map(|stat| {
+    let count = stats.len();
-            format!(
+
-                "({}, {}, {}, {})",
+    {
-                stat.word_id.to_string(),
+        let mut stmt = tx
-                stat.set_id.to_string(),
+            .prepare(
-                stat.score.to_string(),
+                "INSERT INTO card_stats (word_id, set_id, score, last_opened) VALUES (?1, ?2, ?3, ?4)",
-                stat.last_open.timestamp().to_string()
             )
-        })
+            .unwrap();
-        .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(), ());
 
-    if count.is_err() {
+        for stat in stats.iter() {
-        println!("{}", count.unwrap_err());
+            stmt.execute(params![
-        return;
+                stat.word_id,
+                stat.set_id,
+                stat.score,
+                stat.last_open.timestamp()
+            ])
+            .unwrap();
+        }
     }
 
-    let last_index: u32 = connection
+    let last_index: u32 = tx.last_insert_rowid() as u32;
-        .query_one(
+    tx.commit().unwrap();
-            "SELECT seq from sqlite_sequence WHERE name == ?1",
-            ("card_stats".to_string(),),
-            |row| row.get(0),
-        )
-        .unwrap();
 
-    let start_index = last_index - (count.unwrap() as u32) + 1;
+    let start_index = last_index - (count as u32) + 1;
 
-    let mut index = 0;
+    for (index, id) in (start_index..=last_index).enumerate() {
-    for id in start_index..=last_index {
+        stats[index].id = id.into();
-        stat[index].id = id;
-        index += 1;
     }
+
+    println!("Added {} cards for {:?}", stats.len(), time.elapsed());
 }
 
-// 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());
-// }
-
 pub fn update_stat_score(stat: &CardStatistics, connection: &Connection) {
     let time = Instant::now();
 
@@ -96,21 +69,15 @@ pub fn update_stat_score(stat: &CardStatistics, connection: &Connection) {
             "UPDATE card_stats SET score = ?1, last_opened = ?2 WHERE id = ?3",
             (&stat.score, &stat.last_open.timestamp(), &stat.id),
         )
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
     println!("Updated stat: {}", time.elapsed().as_millis());
 }
 
 pub fn delete_stat(stat: &CardStatistics, connection: &Connection) {
-    if stat.id == 0 {
+    if !stat.id.is_valid() {
         return;
     }
     connection
         .execute("DELETE FROM card_stats WHERE id = ?1", (&stat.id,))
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }

src/data_provider/history.rs

@@ -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();
@@ -30,17 +30,25 @@ fn parse_history_items(strings: Vec<String>) -> Vec<HistoryItem> {
     let mut items = Vec::with_capacity(strings.len());
     for string in strings {
         if let [time, word, mode, before, after] = string.split(';').collect::<Vec<&str>>()[..] {
+            let id = word.parse::<Id>();
+            if id.is_err() {
+                continue;
+            }
+            let id = id.unwrap();
+            if !id.is_valid() {
+                continue;
+            }
             items.push(HistoryItem {
-                timestamp: DateTime::from_timestamp(time.parse().unwrap(), 0).unwrap(),
+                timestamp: DateTime::from_timestamp(time.parse().unwrap_or_default(), 0).unwrap(),
-                word_id: word.parse::<u32>().unwrap(),
+                word_id: id,
-                mode: match mode.parse::<u8>().unwrap() {
+                mode: match mode.parse::<u8>().unwrap_or_default() {
                     2 => WordOpenMode::Hard,
                     3 => WordOpenMode::Ok,
                     4 => WordOpenMode::Easy,
                     _ => WordOpenMode::None,
                 },
-                before: before.parse().unwrap(),
+                before: before.parse().unwrap_or_default(),
-                after: after.parse().unwrap(),
+                after: after.parse().unwrap_or_default(),
             });
         }
     }
@@ -48,7 +56,7 @@ 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 +78,7 @@ 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 +92,7 @@ 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,

src/data_provider/import.rs

@@ -1,6 +1,6 @@
+use hashbrown::HashMap;
 use rusqlite::Connection;
 use serde_json::Value;
-use std::collections::HashMap;
 
 #[derive(Clone)]
 pub struct ImportData(pub(crate) Vec<ImportGroup>);
@@ -12,7 +12,7 @@ pub struct ImportGroup {
     pub fields: Vec<String>,
     pub length: u64,
     pub mapping: HashMap<String, String>,
-    pub imported: bool
+    pub imported: bool,
 }
 
 #[derive(Clone)]
@@ -68,13 +68,18 @@ pub fn get_words_of_group(connection: &Connection, group_id: u64) -> Vec<ImportN
         .prepare("select tags, flds from notes where mid == ?1;")
         .unwrap();
 
-    count_stmt.query_map((group_id as i64, ), |row| {
+    count_stmt
-        Ok(ImportNote {
+        .query_map((group_id as i64,), |row| {
-            tags: row.get(0)?,
+            Ok(ImportNote {
-            fields: row.get::<usize, String>(1)?
+                tags: row.get(0)?,
-                .split('')
+                fields: row
-                .map(|x| x.to_string())
+                    .get::<usize, String>(1)?
-                .collect()
+                    .split('')
+                    .map(|x| x.to_string())
+                    .collect(),
+            })
         })
-    }).unwrap().map(|x| x.unwrap()).collect::<Vec<ImportNote>>()
+        .unwrap()
+        .map(|x| x.unwrap())
+        .collect::<Vec<ImportNote>>()
 }

src/data_provider/mod.rs

@@ -1,9 +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 import;
+pub(crate) mod words;

src/data_provider/settings.rs

@@ -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 Some(row) = iter.next()
-        if let Ok(value) = row {
+        && let Ok(value) = row
-            return Some(value);
+    {
-        }
+        return Some(value);
-        return None;
     }
+
     None
 }
 
@@ -27,10 +27,7 @@ pub fn set_setting(key: String, value: String, connection: &Connection) {
 pub fn delete_settings(key: String, connection: &Connection) {
     connection
         .execute("DELETE FROM settings WHERE id = ?1", (&key,))
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }
 
 fn create_settings(key: String, value: String, connection: &Connection) {
@@ -39,10 +36,7 @@ fn create_settings(key: String, value: String, connection: &Connection) {
             "INSERT into settings (id, value) VALUES (?1, ?2)",
             (key, value),
         )
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }
 
 fn update_settings(key: String, value: String, connection: &Connection) {
@@ -53,10 +47,7 @@ set value = ?2
 where id = ?1",
             (key, value),
         )
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }
 
 fn get_settings_list(connection: &Connection) -> Vec<String> {

src/data_provider/sqlite.rs

@@ -62,4 +62,4 @@ pub fn default_connection() -> Connection {
     let connection = Connection::open(db_file).unwrap();
     connection.execute("PRAGMA foreign_keys = ON;", []).unwrap();
     connection
-}
+}

src/data_provider/web_api.rs

@@ -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();
+    encoder.finish().unwrap()
-    compressed
 }
 
 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();
+    let mut file = OpenOptions::new()
-    file.write_all(version.to_string().as_bytes()).await.unwrap();
+        .write(true)
+        .create(true)
+        .truncate(true)
+        .open(file_path)
+        .await
+        .unwrap();
+    file.write_all(version.to_string().as_bytes())
+        .await
+        .unwrap();
 }
-

src/data_provider/words.rs

@@ -1,9 +1,9 @@
 use crate::lang::{WordData, WordGroup};
-use rusqlite::{params, Connection};
+use rusqlite::{Connection, params};
 use std::collections::HashMap;
 
 pub fn add_word(word: &mut WordData, connection: &Connection) {
-    let index = connection
+    let index : u32 = connection
         .query_row(
             "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5) RETURNING id",
             (
@@ -14,52 +14,47 @@ pub fn add_word(word: &mut WordData, connection: &Connection) {
                 &word.group_id,
             ),
             |row| row.get(0),
-        )
+        ).unwrap();
-        .unwrap_or_else(|e| {
-            println!("{}", e);
-            0
-        });
 
-    word.id = index;
+    word.id = index.into();
 }
 
-pub fn add_words(words: &mut[WordData], connection: &mut Connection) {
+pub fn add_words(words: &mut [WordData], connection: &mut Connection) {
     let tx = connection.transaction().unwrap();
     let count = words.len();
 
     {
-        let mut stmt = tx.prepare(
+        let mut stmt = tx
-            "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5)",
+            .prepare(
-        ).unwrap();
+                "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();
+            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 last_index: u32 = connection
-        .query_one(
-            "SELECT seq from sqlite_sequence WHERE name == ?1",
-            ("words".to_string(),),
-            |row| row.get(0),
-        )
-        .unwrap();
-
     let start_index = last_index - (count as u32) + 1;
 
-    let mut index = 0;
+    for (index, id) in (start_index..=last_index).enumerate() {
-    for id in start_index..=last_index {
+        words[index].id = id.into();
-        words[index].id = id;
-        index += 1;
     }
 }
 
 pub fn update_word(word: &mut WordData, connection: &Connection) {
-    if word.id == 0 {
+    if !word.id.is_valid() {
-        add_word(word, &connection);
+        add_word(word, connection);
     } else {
         connection
             .execute(
@@ -72,23 +67,17 @@ pub fn update_word(word: &mut WordData, connection: &Connection) {
                     &word.id,
                 ),
             )
-            .unwrap_or_else(|e| {
+            .unwrap();
-                println!("{}", e);
-                0
-            });
     }
 }
 
 pub fn delete_word(word: &WordData, connection: &Connection) {
-    if word.id == 0 {
+    if !word.id.is_valid() {
         return;
     }
     connection
         .execute("DELETE FROM words WHERE id = ?1", (&word.id,))
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }
 
 pub fn load_words(connection: &Connection) -> Vec<WordData> {
@@ -139,44 +128,35 @@ pub fn load_word_groups(connection: &Connection) -> Vec<WordGroup> {
 }
 
 pub fn add_group(group: &mut WordGroup, connection: &Connection) {
-    let index = connection
+    let index: u32 = connection
         .query_row(
             "INSERT INTO word_group (name) VALUES (?1) RETURNING id",
             (&group.name,),
             |row| row.get(0),
         )
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 
-    group.id = index;
+    group.id = index.into();
 }
 
 pub fn update_group(group: &mut WordGroup, connection: &Connection) {
-    if group.id == 0 {
+    if !group.id.is_valid() {
-        add_group(group, &connection);
+        add_group(group, connection);
     } else {
         connection
             .execute(
                 "UPDATE word_group SET name = ?1 WHERE id = ?2",
                 (&group.name, &group.id),
             )
-            .unwrap_or_else(|e| {
+            .unwrap();
-                println!("{}", e);
-                0
-            });
     }
 }
 
 pub fn delete_group(group: &WordGroup, connection: &Connection) {
-    if group.id == 0 {
+    if !group.id.is_valid() {
         return;
     }
     connection
         .execute("DELETE FROM word_group WHERE id = ?1", (&group.id,))
-        .unwrap_or_else(|e| {
+        .unwrap();
-            println!("{}", e);
-            0
-        });
 }

src/dictionary.rs

@@ -9,6 +9,7 @@ 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};
@@ -18,11 +19,11 @@ use iced::widget::*;
 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;
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 use std::time::{Duration, Instant};
 
 #[derive(Clone)]
@@ -65,38 +66,38 @@ pub enum DictionaryMessage {
 }
 
 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 let Test = message
-            if self.include_map.iter().any(|x| *x) {
+            && self.include_map.iter().any(|x| *x)
-                let mut words = vec![];
+        {
-                let dict = &self.state.lock().unwrap().dictionary;
+            let mut words = vec![];
+            let dict = &self.state.lock().dictionary;
 
-                words = self
+            words = self
-                    .include_map
+                .include_map
-                    .iter()
+                .iter()
-                    .zip(0..self.include_map.len())
+                .zip(0..self.include_map.len())
-                    .filter(|(flag, _)| **flag)
+                .filter(|(flag, _)| **flag)
-                    .map(|(_, index)| dict[index].clone())
+                .map(|(_, index)| dict[index].clone())
-                    .collect();
+                .collect();
 
-                return Some(Page::DictionaryQuiz(DictionaryQuizState::new(
+            return Some(Page::DictionaryQuiz(DictionaryQuizState::new(
-                    words,
+                words,
-                    self.reverse,
+                self.reverse,
-                    self.no_typing,
+                self.no_typing,
-                )));
+            )));
-            }
         }
         if let WordAction(index) = message {
             let word: WordData;
             {
-                let state = self.state.lock().unwrap();
+                let state = self.state.lock();
                 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())));
             }
         }
@@ -107,7 +108,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
     }
 
     fn navigated(&mut self) {
-        let len = self.state.lock().unwrap().dictionary.len();
+        let len = self.state.lock().dictionary.len();
 
         self.include_map = vec![false; len];
         self.tag_map = Default::default();
@@ -117,9 +118,9 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
     fn update(&mut self, message: DictionaryMessage) -> Task<RootMessage> {
         match message {
             NewWord => {
-                let mut state = self.state.lock().unwrap();
+                let mut state = self.state.lock();
                 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);
@@ -128,21 +129,21 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
 
             SetKey(i, v) => {
                 {
-                    let dict = &mut self.state.lock().unwrap().dictionary;
+                    let dict = &mut self.state.lock().dictionary;
                     dict[i].key = v;
                 }
                 return self.launch_auto_save_offset(i);
             }
             SetValue(i, v) => {
                 {
-                    let dict = &mut self.state.lock().unwrap().dictionary;
+                    let dict = &mut self.state.lock().dictionary;
                     dict[i].value = v
                 }
                 return self.launch_auto_save_offset(i);
             }
             SetTags(i, mut v) => {
                 {
-                    let dict = &mut self.state.lock().unwrap().dictionary;
+                    let dict = &mut self.state.lock().dictionary;
 
                     let current_tags_value = dict[i].tags.clone();
 
@@ -150,12 +151,11 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                         v = v[..v.len() - 2].to_string()
                     }
 
-                    while v.contains(",,") {
+                    while let Some(index) = v.find(",,") {
-                        let index = v.find(",,").unwrap();
                         v.remove(index);
                     }
 
-                    dict.get_mut(i).unwrap().tags = v;
+                    dict[i].tags = v;
                 }
 
                 self.update_tags();
@@ -163,7 +163,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
             }
 
             WordAction(i) => {
-                let state = &mut self.state.lock().unwrap();
+                let state = &mut self.state.lock();
                 let dict = &mut state.dictionary;
                 let word = dict.remove(i);
                 self.include_map.remove(i);
@@ -172,9 +172,9 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
             }
             Include(i, b) => self.include_map[i] = b,
             IncludeTag(t, v) => {
-                let index: u32;
+                let index;
                 {
-                    let state = self.state.lock().unwrap();
+                    let state = self.state.lock();
                     index = state.word_groups[self.selected_group_index].id;
                 }
                 self.tag_map.insert(t, v);
@@ -194,37 +194,33 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
             Back => {}
             Test => {}
             CreateGroup => {
-                let state = &mut self.state.lock().unwrap();
+                let state = &mut self.state.lock();
 
                 state.word_groups.push(WordGroup {
-                    id: 0,
+                    id: 0.into(),
                     name: format!("Группа слов {}", random_range(100..1000)),
                 });
             }
             EditGroup(new) => {
-                let state = &mut self.state.lock().unwrap();
+                let state = &mut self.state.lock();
                 let group = state.word_groups.get_mut(self.selected_group_index);
                 if let Some(group) = group {
                     group.name = new.clone();
                 }
             }
             SaveGroup => {
-                let state = &mut self.state.lock().unwrap();
+                let state = &mut self.state.lock();
                 let connection = &state.connection;
-                let group = &mut state
+                let mut group = state.word_groups[self.selected_group_index].clone();
-                    .word_groups
-                    .get(self.selected_group_index)
-                    .unwrap()
-                    .clone();
 
-                update_group(group, connection);
+                update_group(&mut group, connection);
-                state.word_groups[self.selected_group_index] = group.clone();
+                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();
+                    let state = self.state.lock();
                     index = state.word_groups[i].id;
                 }
                 self.update_words_include(index)
@@ -234,7 +230,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                     return Task::none();
                 }
                 {
-                    let state = &mut self.state.lock().unwrap();
+                    let state = &mut self.state.lock();
 
                     if let Some(group) = state.word_groups.get(self.selected_group_index) {
                         let remove_group_id = group.id;
@@ -277,7 +273,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                     self.groups_panel(),
                     row![horizontal().width(8), self.words_list(),],
                     row![
-                        button("Добавить слово").style(jl_button).on_press(NewWord),
+                        self.add_word_button(),
                         horizontal().width(Fill),
                         button("Импорт").style(text).on_press(ToImport),
                     ]
@@ -294,7 +290,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
 
 impl DictionaryState {
     pub fn new(state: Arc<Mutex<AppState>>) -> Self {
-        let len = state.lock().unwrap().dictionary.len();
+        let len = state.lock().dictionary.len();
 
         let mut result = DictionaryState {
             include_map: vec![false; len],
@@ -314,11 +310,11 @@ impl DictionaryState {
     }
 
     fn save_word(&mut self, i: usize) {
-        let state = &mut self.state.lock().unwrap();
+        let state = &mut self.state.lock();
         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();
     }
 
@@ -336,7 +332,7 @@ impl DictionaryState {
         let time = Instant::now();
         let mut col = Column::new().width(Fill);
 
-        let state = self.state.lock().unwrap();
+        let state = self.state.lock();
         let group_id = state.word_groups[self.selected_group_index].id;
 
         let dict = &state.dictionary;
@@ -353,13 +349,12 @@ impl DictionaryState {
                 continue;
             }
 
-            if !self.search.is_empty() {
+            if !self.search.is_empty()
-                if word.key.contains(&self.search) == false
+                && !word.key.contains(&self.search)
-                    && word.value.contains(&self.search) == false
+                && !word.value.contains(&self.search)
-                    && word.tags.contains(&self.search) == false
+                && !word.tags.contains(&self.search)
-                {
+            {
-                    continue;
+                continue;
-                }
             }
 
             let word_line_data = WordLineState {
@@ -424,7 +419,7 @@ 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,
@@ -449,7 +444,7 @@ impl DictionaryState {
     }
 
     fn filters(&self) -> iced::Element<'_, DictionaryMessage> {
-        let dict = &self.state.lock().unwrap().dictionary;
+        let dict = &self.state.lock().dictionary;
 
         iced::widget::column![
             text_input("Поиск", &self.search)
@@ -505,7 +500,7 @@ impl DictionaryState {
 
     fn update_tags(&mut self) {
         let mut tags_list: HashSet<String> = HashSet::new();
-        let dict = &self.state.lock().unwrap().dictionary;
+        let dict = &self.state.lock().dictionary;
 
         dict.iter().for_each(|element| {
             split_with_coma(element.tags.as_str())
@@ -533,7 +528,7 @@ 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()
@@ -546,14 +541,16 @@ impl DictionaryState {
             return;
         }
 
-        let dict = &self.state.lock().unwrap().dictionary;
+        let dict = &self.state.lock().dictionary;
         let time = Instant::now();
 
         self.include_map = dict
             .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)) && tags.len() != 0 && word_group_id == group_id
+                !tags.is_empty()
+                    && tags.iter().all(|t| include_tags.contains(t))
+                    && word_group_id == group_id
             })
             .collect();
 
@@ -564,17 +561,15 @@ impl DictionaryState {
         let mut row = Row::new();
         row = row.push(button("+").style(text).on_press(CreateGroup));
 
-        let state = &self.state.lock().unwrap();
+        let state = &self.state.lock();
         let groups = &state.word_groups;
 
-        let mut index = 0;
+        for (index, group) in groups.iter().enumerate() {
-        for group in groups {
             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();
@@ -602,6 +597,18 @@ impl DictionaryState {
             space().into()
         }
     }
+
+    fn add_word_button(&self) -> iced::Element<'_, DictionaryMessage> {
+        let state = self.state.lock();
+        let group_id = state.word_groups[self.selected_group_index].id;
+        let button = button("Добавить слово").style(jl_button);
+
+        if group_id.is_valid() {
+            return button.on_press(NewWord).into();
+        }
+
+        button.into()
+    }
 }
 
 pub fn split_with_coma(ts: &str) -> Vec<String> {
@@ -615,7 +622,7 @@ 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
@@ -627,6 +634,6 @@ struct WordLineState {
     key: String,
     value: String,
     tags: String,
-    id: u32,
+    id: crate::lang::Id,
     index: usize,
 }

src/dictionary_test.rs

@@ -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::widget::{Row, button, container, row, space, text, text_input};
-use iced::Background::Color;
+use iced::{Border, Element, Fill, Task, Theme, alignment};
-use iced::{alignment, Border, Element, Fill, Task, Theme};
 use rand::prelude::SliceRandom;
 
 #[derive(Debug, Clone)]
@@ -35,15 +35,14 @@ 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) {}
-    }
 
     fn update(&mut self, message: DictionaryQuizMessage) -> Task<RootMessage> {
         match message {
@@ -95,12 +94,12 @@ impl NavigatedPage<DictionaryQuizMessage> for DictionaryQuizState {
                 ]
                 .spacing(DEFAULT_SPACING),
             ]
-                .spacing(DEFAULT_SPACING)
+            .spacing(DEFAULT_SPACING)
-                .align_x(alignment::Horizontal::Center),
+            .align_x(alignment::Horizontal::Center),
         )
-            .center_y(Fill)
+        .center_y(Fill)
-            .center_x(Fill)
+        .center_x(Fill)
-            .into()
+        .into()
     }
 }
 
@@ -120,7 +119,6 @@ impl DictionaryQuizState {
         }
     }
 
-    
     fn submit(&mut self) {
         if self.view == "---" {
             self.show_next();
@@ -151,7 +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()
@@ -173,11 +171,14 @@ impl DictionaryQuizState {
         self.is_help = false;
         self.answer = String::new();
 
-        if self.current_set.is_empty() {
+        let next: WordData = match self.current_set.pop() {
-            self.update_set();
+            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();
@@ -208,7 +209,7 @@ 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()

src/history.rs

@@ -9,7 +9,8 @@ use iced::alignment::Horizontal::Center;
 use iced::widget::space::horizontal;
 use iced::widget::*;
 use iced::{Element, Fill, FillPortion, Task};
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 
 #[derive(Clone)]
 pub struct HistoryState {
@@ -18,13 +19,12 @@ 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()
     }
@@ -38,17 +38,17 @@ impl NavigatedPage<HistoryMessage> for HistoryState {
                     .width(FillPortion(5)),
                 horizontal().width(FillPortion(1))
             ]
-                .height(Fill)
+            .height(Fill)
-                .width(Fill)
+            .width(Fill)
-                .into(),
+            .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 state = state.lock();
         let history = get_history_of_set(id);
         let words = history
             .iter()
@@ -68,8 +68,6 @@ impl HistoryState {
         }
     }
 
-
-
     fn history_lines(&self) -> Column<'_, HistoryMessage> {
         let mut column = Column::new();
         for (item, index) in self.list.iter().zip(0..self.list.len()) {
@@ -86,11 +84,13 @@ 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),
             );

src/import.rs

@@ -21,7 +21,8 @@ use rusqlite::Connection;
 use std::fs::{File, OpenOptions};
 use std::io::BufReader;
 use std::path::PathBuf;
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 use tokio::task::spawn_blocking;
 use zip::ZipArchive;
 
@@ -62,8 +63,8 @@ pub enum ImportMessage {
 }
 
 impl NavigatedPage<ImportMessage> for ImportState {
-    fn navigate(&self, message: &ImportMessage) -> Option<Page> {
+    fn navigate(&mut self, message: &ImportMessage) -> Option<Page> {
-        if let Some(_) = self.progress {
+        if self.progress.is_some() {
             return None;
         }
 
@@ -80,10 +81,12 @@ impl NavigatedPage<ImportMessage> for ImportState {
             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 => {
@@ -128,12 +131,7 @@ impl NavigatedPage<ImportMessage> for ImportState {
             }
             ImportFinished => {
                 self.progress = None;
-                let group = self
+                let group = &mut self.import_data.as_mut().unwrap().0[self.selected_index];
-                    .import_data.as_mut()
-                    .unwrap()
-                    .0
-                    .get_mut(self.selected_index)
-                    .unwrap();
                 group.imported = true;
             }
         }
@@ -144,7 +142,7 @@ impl NavigatedPage<ImportMessage> for ImportState {
         back_overlay(
             {
                 if let Some(value) = &self.progress {
-                    column![progress_bar(0f32..=1f32, *value.lock().unwrap()),]
+                    column![progress_bar(0f32..=1f32, *value.lock()),]
                         .spacing(QUARTER_SPACING)
                         .into()
                 } else {
@@ -200,7 +198,9 @@ impl ImportState {
 
     fn import_button(&self, group: &ImportGroup) -> Element<'_, ImportMessage> {
         if group.imported {
-            return container(text!("Группа слов успешно импортирована")).padding(HALF_SPACING).align_x(Center)
+            return container(text!("Группа слов успешно импортирована"))
+                .padding(HALF_SPACING)
+                .align_x(Center)
                 .style(success)
                 .width(Fill)
                 .into();
@@ -254,7 +254,7 @@ impl ImportState {
     }
 
     fn property_selector(&self) -> Element<'_, ImportMessage> {
-        if self.selected_property == None {
+        if self.selected_property.is_none() {
             return space().into();
         }
         column![
@@ -360,7 +360,7 @@ impl ImportState {
                 spawn_blocking(move || {
                     Self::extract_import_file(path)?;
                     let data = Self::read_import_file()?;
-                    return Ok(data);
+                    Ok(data)
                 })
                 .await
                 .unwrap()
@@ -379,15 +379,17 @@ impl ImportState {
         let file = File::open(path).map_err(|_| ())?;
         let reader = BufReader::new(file);
         let mut archive = ZipArchive::new(reader).map_err(|_| ())?;
-        let db_file = archive.by_name("collection.anki2");
+        let temp_file_path = app_data_dir().join("import");
-        if let Ok(mut file) = db_file {
+        let mut temp_file = OpenOptions::new()
-            let temp_file_path = app_data_dir().join("import");
+            .write(true)
-            let mut temp_file = OpenOptions::new()
+            .create(true)
-                .write(true)
+            .truncate(true)
-                .create(true)
+            .open(&temp_file_path)
-                .truncate(true)
+            .map_err(|_| ())?;
-                .open(&temp_file_path)
+        if let Ok(mut file) = archive.by_name("collection.anki21") {
-                .map_err(|_| ())?;
+            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 {
@@ -402,7 +404,7 @@ impl ImportState {
     }
     fn setup_mapping(&mut self, property_name: String) {
         let group = self.import_data.as_mut().unwrap();
-        let group = group.0.get_mut(self.selected_index).unwrap();
+        let group = &mut group.0[self.selected_index];
         group
             .mapping
             .insert(self.selected_property.clone().unwrap(), property_name);
@@ -411,7 +413,7 @@ impl ImportState {
     }
     fn remove_mapping(&mut self, property_name: String) {
         let group = self.import_data.as_mut().unwrap();
-        let group = group.0.get_mut(self.selected_index).unwrap();
+        let group = &mut group.0[self.selected_index];
         let remove_key = group
             .mapping
             .keys()
@@ -439,11 +441,11 @@ impl ImportState {
 
                     let map_indices = Self::get_mapping_indices(&group);
                     let mut group_entity = WordGroup {
-                        id: 0,
+                        id: 0.into(),
                         name: group.name.clone(),
                     };
                     {
-                        let state = state.lock().unwrap();
+                        let state = state.lock();
                         add_group(&mut group_entity, &state.connection);
                     }
 
@@ -452,11 +454,11 @@ impl ImportState {
                         let mut word = WordData::new();
 
                         word.tags = import.tags.trim().replace(" ", ", ");
-                        word.group_id = group_id.clone();
+                        word.group_id = group_id;
                         for (dest, indices) in &map_indices {
                             let collected_string = Self::collect_strings(
                                 &import.fields,
-                                &indices,
+                                indices,
                                 &separator,
                                 skip_empty,
                             );
@@ -476,18 +478,17 @@ impl ImportState {
                             }
                         }
 
-                        println!("{word:?}");
                         words_list.push(word);
                     }
 
-                    let mut state = state.lock().unwrap();
+                    let mut state = state.lock();
                     let connection = &mut state.connection;
                     let mut index = 0;
-                    let total_len = words_list.len() as f32 / 256.0;
+                    let total_len = words_list.len() as f32 / 1024.0;
-                    for word in &mut words_list.chunks_mut(256) {
+                    for word in &mut words_list.chunks_mut(1024) {
                         add_words(word, connection);
                         index += 1;
-                        let mut progress = progress.lock().unwrap();
+                        let mut progress = progress.lock();
                         *progress = index as f32 / total_len;
                     }
 
@@ -511,29 +512,31 @@ impl ImportState {
             .iter()
             .map(|name| (name.clone(), Vec::<usize>::with_capacity(1)))
             .collect::<Vec<_>>();
-        for key in group.mapping.keys() {
+        for (key, endpoint) in &group.mapping {
-            let endpoint = group.mapping.get(key).unwrap();
+            let property_index = group
-            let property_index = group.fields.iter().position(|f| f == key).unwrap();
+                .fields
+                .iter()
+                .position(|f| f == key)
+                .expect("Unknown property");
             let group_index = result
                 .iter()
                 .position(|(name, _)| name == endpoint)
                 .unwrap();
-            result.get_mut(group_index).unwrap().1.push(property_index);
+            result[group_index].1.push(property_index);
         }
 
         result
     }
 
     fn collect_strings(
-        properties: &Vec<String>,
+        properties: &[String],
-        indices: &Vec<usize>,
+        indices: &[usize],
         separator: &str,
         skip_empty: bool,
     ) -> String {
         let mut working_words = Vec::with_capacity(indices.len());
-        for i in 0..indices.len() {
+        for index in indices {
-            let index = indices[i];
+            let str = &properties[*index];
-            let str = properties.get(index).unwrap();
             if skip_empty && str.is_empty() {
                 continue;
             }

src/lang.rs

@@ -1,25 +1,80 @@
-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 rayon::iter::IndexedParallelIterator;
-use std::cmp::min;
+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::sync::{Arc, Mutex};
+use std::fmt::{Display, Formatter};
+use std::num::ParseIntError;
+use std::str::FromStr;
+use std::sync::Arc;
+use parking_lot::Mutex;
 use std::time::Instant;
 
 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 From<Id> for u32 {
+    fn from(value: Id) -> Self {
+        value.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 +82,11 @@ 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 +252,6 @@ 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 +266,6 @@ impl KanaSet {
         current_set
     }
 }
-
 impl Default for KanaSet {
     fn default() -> Self {
         KanaSet::hiragana()
@@ -232,45 +276,40 @@ impl PartialEq<Self> for KanaSet {
         self.name == other.name
     }
 }
-
+#[derive(Clone, Debug)]
-#[derive(Clone, Debug, Serialize, Deserialize)]
 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 id: Id,
-    pub word_id: u32,
+    pub word_id: Id,
-    pub set_id: u32,
+    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 +325,7 @@ impl CardStatistics {
             }
         }
 
-        if self.score < 1 {
+        self.score = self.score.clamp(1, MAX_SCORE);
-            self.score = 1
-        } else if self.score > MAX_SCORE {
-            self.score = MAX_SCORE
-        }
         self.last_open = Utc::now();
     }
 
@@ -301,7 +336,6 @@ impl CardStatistics {
         (self.score as f32 * multiplier).max(1.0)
     }
 }
-
 #[derive(Clone, Copy)]
 pub enum WordOpenMode {
     Easy,
@@ -309,51 +343,29 @@ 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 DeckData {
-impl CardSet {
+    pub fn new(settings: &DeckSettings, state: Arc<Mutex<AppState>>) -> Self {
-    pub fn new(settings: &CardSetSettings, state: Arc<Mutex<AppState>>) -> Self {
         let state_for = state.clone();
-        let state_locked = state.lock().unwrap();
+        let state_locked = state.lock();
 
-        let mut current_set = load_stats_of_set(&settings, &state_locked.connection);
+        let mut current_set = load_stats_of_deck(settings, &state_locked.connection);
-        let last_list = settings.get_word_list(&state_locked);
+        let last_list: Vec<_> = settings
-        let saved_ids = current_set.iter().map(|l| l.word_id).collect::<Vec<u32>>();
+            .get_word_list(&state_locked)
-        let word_ids = last_list.iter().map(|l| l.id).collect::<Vec<u32>>();
-
-        let new_stats: &mut Vec<CardStatistics> = &mut last_list
             .iter()
-            .filter(|word| !saved_ids.contains(&word.id))
+            .map(|w| &state_locked.dictionary[*w])
-            .map(|word| CardStatistics {
+            .cloned()
-                id: 0,
-                word_id: word.id.clone(),
-                last_open: Utc::now(),
-                score: 1,
-                set_id: settings.id.clone(),
-            })
             .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 +382,19 @@ impl CardSet {
             current_word_index: None,
             state: state_for,
             order_module: match settings.open_mode {
-                SetOrderMode::Default => OrderModule::SemiRandomSRS(SemiRandomSRSModule::new()),
+                OrderMode::Default => OrderModule::SemiRandomSRS(SemiRandomSRSModule::new()),
-                SetOrderMode::TrainWorstFirst => {
+                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 +402,7 @@ impl CardSet {
                 index
             }
             OrderModule::RandomSRS(mut module) => {
-                if module.initialized == false {
+                if !module.initialized {
                     module.init(self)
                 }
                 let index = module.next(self);
@@ -399,7 +410,7 @@ impl CardSet {
                 index
             }
             OrderModule::WorstWordsSRS(mut module) => {
-                if module.initialized == false {
+                if !module.initialized {
                     module.init(self)
                 }
                 let index = module.next(self);
@@ -411,9 +422,8 @@ 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();
@@ -437,50 +447,50 @@ impl CardSet {
                 self.order_module = OrderModule::WorstWordsSRS(module);
             }
         }
-        update_stat_score(word, &self.state.lock().unwrap().connection);
+        update_stat_score(word, &self.state.lock().connection);
         push_note(
             self.settings.id,
             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 +499,26 @@ impl RandomSRSModule {
         }
     }
 }
-
 impl SRSModule for RandomSRSModule {
-    fn next(&mut self, set: &mut CardSet) -> usize {
+    fn next(&mut self, set: &mut DeckData) -> usize {
-        if self.basket.is_empty() {
+        match self.basket.pop() {
-            self.basket = (0..set.words.len()).collect::<Vec<usize>>();
+            Some(index) => index,
-            self.basket.shuffle(&mut rand::rng())
+            None => {
+                self.basket = (0..set.words.len()).collect::<Vec<usize>>();
+                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 +526,6 @@ struct SemiRandomSRSModule {
     generator: ThreadRng,
     initialized: bool,
 }
-
 impl SemiRandomSRSModule {
     fn new() -> SemiRandomSRSModule {
         SemiRandomSRSModule {
@@ -527,9 +536,8 @@ 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 +551,13 @@ 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 DeckData) {
-    fn init(&mut self, set: &mut CardSet) {
         self.initialized = true;
         let weights = set
             .set
@@ -561,16 +567,11 @@ impl SRSModule for SemiRandomSRSModule {
         self.last_weights = WeightedIndex::new(weights).unwrap();
     }
 }
-
 impl SemiRandomSRSModule {
-    fn history_len(&self, set: &CardSet) -> usize {
+    fn history_len(&self, set: &DeckData) -> usize {
-        min(
+        ((set.len() as f32 * MAX_HISTORY_LEN_PART) as usize).clamp(1, MAX_HISTORY_LEN)
-            MAX_HISTORY_LEN,
-            (set.len() as f32 * MAX_HISTORY_LEN_PART) as usize,
-        )
     }
 }
-
 #[derive(Clone)]
 struct WorstWordsSRSModule {
     initialized: bool,
@@ -580,29 +581,29 @@ 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() {
-            self.queue.append(&mut self.pool.clone());
+            Some(index) => index,
-            self.rounds_remaining -= 1;
+            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 +615,7 @@ impl WorstWordsSRSModule {
             queue: vec![],
         }
     }
-
+    fn fill_pool(&mut self, set: &DeckData) {
-    fn fill_pool(&mut self, set: &CardSet) {
         let mut sorted = set
             .set
             .clone()
@@ -631,3 +631,88 @@ 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"
+    }
+}

src/main.rs

@@ -3,39 +3,38 @@ 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;
-pub mod import;
 
+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 hashbrown::HashMap;
-use iced::{window, Font};
+use iced::{Font, window};
-use iced_core::window::Position;
+use iced::{Subscription, Theme, keyboard};
 use iced_core::Size;
-use rusqlite::Connection;
+use iced_core::window::Position;
-use std::collections::HashMap;
+#[cfg(target_os = "linux")]
 use iced_core::window::settings::PlatformSpecific;
 use mimalloc::MiMalloc;
-
+use rusqlite::Connection;
 #[global_allocator]
 static GLOBAL: MiMalloc = MiMalloc;
 
@@ -43,7 +42,8 @@ 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())
+    iced::application(ScreenState::boot, ScreenState::update, ScreenState::view)
+        .window(window_settings())
         .subscription(subscription)
         .title("JapLearn")
         .settings(iced::Settings {
@@ -52,51 +52,58 @@ fn main() -> iced::Result {
         })
         .font(include_bytes!("../noto.ttf"))
         .default_font(USER_FONT)
-        .theme(Theme::GruvboxDark).run()
+        .theme(Theme::GruvboxDark)
+        .run()
 }
 
 fn window_settings() -> window::Settings {
-    let mut settings = window::Settings{
+    let mut settings = window::Settings {
         position: Position::Centered,
-        min_size: Some(Size::new(700.0_f32.into(), 700.0_f32.into())),
+        min_size: Some(Size::new(700.0_f32, 700.0_f32)),
-        .. Default::default()
+        ..Default::default()
     };
 
     #[cfg(target_os = "linux")]
     {
-        settings.platform_specific =
+        settings.platform_specific = PlatformSpecific {
-            PlatformSpecific {
+            application_id: "JapLearn".to_string(),
-                application_id: "JapLearn".to_string(),
+            override_redirect: false,
-                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(),
         }
     }
@@ -109,13 +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();
+    let fetch = get_setting("AUTO_WEB_FETCH".to_string(), connection)
-    AppSettings { key, auto_web_fetch: fetch }
+        .unwrap_or("false".to_string())
+        .parse::<bool>()
+        .unwrap();
+    AppSettings {
+        key,
+        auto_web_fetch: fetch,
+    }
 }

src/navigation.rs

@@ -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::{
-use crate::dictionary::{app_data_dir, DictionaryMessage, DictionaryState};
+    get_local_version, get_web_version, load_data, set_local_version,
+};
+use crate::dictionary::{DictionaryMessage, DictionaryState, app_data_dir};
 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};
@@ -21,13 +25,14 @@ use crate::word::{WordMessage, WordState};
 use crate::writing::{WritingMessage, WritingState};
 use crate::{AppState, fill_state};
 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::sync::Arc;
+use parking_lot::Mutex;
 use std::time::Instant;
-use crate::import::{ImportMessage, ImportState};
 
 impl Default for ScreenState {
     fn default() -> Self {
@@ -57,7 +62,7 @@ pub enum RootMessage {
     RepetitionSettings(RepetitionSettingsMessage),
     Import(ImportMessage),
     Keyboard(Event),
-    DataLoaded(HashMap<u32, Vec<(NaiveDate, u32)>>),
+    DataLoaded(HashMap<Id, Vec<(NaiveDate, u32)>>),
     None,
     UpdateData,
 }
@@ -93,13 +98,15 @@ impl ScreenState {
         let reading_additional_task = Task::perform(Self::load_additional_data(), |data| data);
 
         let final_task;
-        let state_guard = state.app_state.lock().unwrap();
+        let state_guard = state.app_state.lock();
         if state_guard.sync_data.auto_web_fetch {
             let key = state_guard.sync_data.key.clone().unwrap();
             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
@@ -118,23 +125,25 @@ impl ScreenState {
     async fn load_additional_data() -> RootMessage {
         let directory = history_dir();
         let mut map = HashMap::new();
-        for file in directory.read_dir().unwrap() {
+        for file in directory.read_dir().unwrap().flatten() {
-            if let Ok(file) = file {
+            let mut vec = vec![];
-                let mut vec = vec![];
+            let history_file_name = match file.file_name().into_string() {
-                let history_file_name = file.file_name().into_string().unwrap();
+                Err(_) => continue,
-                let id = history_file_name[4..history_file_name.len() - 12]
+                Ok(v) => v,
-                    .parse::<u32>()
+            };
-                    .unwrap();
 
-                let history = get_history_of_set(id);
+            let id: Id = history_file_name[4..history_file_name.len() - 12]
-                let by_date = history.chunk_by(|x, x1| {
+                .parse::<Id>()
-                    x.timestamp.naive_local().date() == x1.timestamp.naive_local().date()
+                .unwrap();
-                });
+
-                for group in by_date {
+            let history = get_history_of_set(id);
-                    vec.push((group[0].timestamp.naive_local().date(), group.len() as u32));
+            let by_date = history.chunk_by(|x, x1| {
-                }
+                x.timestamp.naive_local().date() == x1.timestamp.naive_local().date()
-                map.insert(id, vec);
+            });
+            for group in by_date {
+                vec.push((group[0].timestamp.naive_local().date(), group.len() as u32));
             }
+            map.insert(id, vec);
         }
         DataLoaded(map)
     }
@@ -142,11 +151,12 @@ impl ScreenState {
     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;
             set_local_version(web).await;
-        }else {
+        } else {
             return Ok(false);
         }
         Ok(true)
@@ -160,13 +170,16 @@ impl ScreenState {
         }
 
         if let DataLoaded(data) = message {
-            self.app_state.lock().unwrap().activity = data;
+            self.app_state.lock().activity = data;
             return Task::none();
         }
 
-        if let UpdateData = message{
+        if let UpdateData = message {
             println!("Loading data");
-            let mut state = self.app_state.lock().unwrap();
+            let mut state = self.app_state.lock();
+            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");
@@ -295,7 +308,10 @@ macro_rules! message_navigation {
     ($msg:expr, $stack:expr, $state:expr) => {
         if let Some(new_page) = $state.navigate(&$msg) {
             if let Page::PreviousPage = new_page {
-                $stack.pop();
+                if $stack.len() > 1 {
+                    $stack.pop();
+                }
+
                 return (Task::<RootMessage>::none(), true);
             } else {
                 $stack.push(new_page);
@@ -323,7 +339,7 @@ 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>;

src/quiz.rs

@@ -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 +28,7 @@ impl NavigatedPage<QuizMessage> for QuizState {
         }
     }
 
-    fn navigated(&mut self) {
+    fn navigated(&mut self) {}
-    }
 
     fn update(&mut self, message: QuizMessage) -> Task<RootMessage> {
         match message {
@@ -42,7 +41,7 @@ impl NavigatedPage<QuizMessage> for QuizState {
                 }
                 self.current_roman = content;
                 if self.correct_roman == self.current_roman {
-                    if self.is_help == false {
+                    if !self.is_help {
                         self.score.correct += 1;
                     }
 
@@ -55,13 +54,11 @@ impl NavigatedPage<QuizMessage> for QuizState {
                     self.update_showed()
                 }
             }
-            Back => todo!(),
+            Back => {}
         }
         Task::none()
     }
 
-
-
     fn view(&self) -> Element<'_, QuizMessage> {
         container(
             iced::widget::column![
@@ -84,27 +81,32 @@ impl NavigatedPage<QuizMessage> for QuizState {
                     .size(28)
                     .width(150)
                     .on_input(ContentChanged),
-                row![
+                score_display(&self.score),
-                    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)
+            .spacing(DEFAULT_SPACING)
-                .align_x(alignment::Horizontal::Center),
+            .align_x(alignment::Horizontal::Center),
         )
-            .center_y(Fill)
+        .center_y(Fill)
-            .center_x(Fill)
+        .center_x(Fill)
-            .into()
+        .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 {
     pub(crate) fn new() -> QuizState {
         QuizState {

src/randomizer.rs

@@ -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::styling::{HALF_SPACING, back_overlay, jl_button};
-use crate::RootMessage;
-use iced::widget::{button, text_editor};
 use iced::Task;
+use iced::widget::{button, text_editor};
 use rand::prelude::SliceRandom;
 
 #[derive(Clone, Debug)]
@@ -20,15 +20,14 @@ 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) {
+    fn navigated(&mut self) {}
-    }
     fn update(&mut self, message: RandomizerMessage) -> Task<RootMessage> {
         match message {
             Edit(action) => {
@@ -59,11 +58,12 @@ impl NavigatedPage<RandomizerMessage> for RandomizerState {
                     .placeholder("Каждый элемент с новой строки"),
                 button("Перемешать").style(jl_button).on_press(Start),
             ]
-                .spacing(HALF_SPACING)
+            .spacing(HALF_SPACING)
-                .into(),
+            .into(),
             Back,
         )
-    }}
+    }
+}
 
 impl Default for RandomizerState {
     fn default() -> Self {
@@ -78,6 +78,4 @@ impl RandomizerState {
             list: vec![],
         }
     }
-
-
 }

src/repetition.rs

@@ -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;
@@ -13,23 +13,24 @@ use iced::widget::{Column, button, column, container, row, rule, space, text, to
 use iced::{Element, Fill, Task, Theme, alignment, keyboard};
 use rodio::MixerDeviceSink;
 use std::collections::HashSet;
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 use tokio::task::spawn_blocking;
 
 pub struct RepetitionState {
     state: Arc<Mutex<AppState>>,
-    pub settings: CardSetSettings,
+    pub settings: DeckSettings,
-    pub set: CardSet,
+    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 {
@@ -37,8 +38,7 @@ impl NavigatedPage<RepetitionMessage> for RepetitionState {
         }
     }
 
-    fn navigated(&mut self) {
+    fn navigated(&mut self) {}
-    }
     fn update(&mut self, message: RepetitionMessage) -> Task<RootMessage> {
         match message {
             RepetitionMessage::Back => {}
@@ -88,17 +88,17 @@ impl NavigatedPage<RepetitionMessage> for RepetitionState {
                     (self.opened.len() as f32 / self.set.len() as f32 * 10000.0).round() / 100.0
                 )
             ]
-                .height(Fill)
+            .height(Fill)
-                .width(Fill)
+            .width(Fill)
-                .into(),
+            .into(),
             RepetitionMessage::Back,
         )
     }
 }
 
 impl RepetitionState {
-    pub(crate) fn new(set: CardSetSettings, state: Arc<Mutex<AppState>>) -> RepetitionState {
+    pub(crate) fn new(set: DeckSettings, state: Arc<Mutex<AppState>>) -> RepetitionState {
-        let mut card_set = CardSet::new(&set, state.clone());
+        let mut card_set = DeckData::new(&set, state.clone());
         let (word, stat) = card_set.next();
         let sink_handle = rodio::DeviceSinkBuilder::open_default_sink().unwrap();
 
@@ -117,8 +117,6 @@ impl RepetitionState {
 }
 
 impl RepetitionState {
-
-
     fn next(&mut self) -> Task<RootMessage> {
         if self.open {
             self.answer(WordOpenMode::None)
@@ -151,7 +149,7 @@ impl RepetitionState {
     }
 
     fn increment_counter(&mut self) {
-        let mut state = self.state.lock().unwrap();
+        let mut state = self.state.lock();
         let id = self.settings.id;
         let activity = state.activity.get_mut(&id);
 
@@ -169,7 +167,6 @@ impl RepetitionState {
         }
     }
 
-
     fn draw_forward(&self) -> Element<'_, RepetitionMessage> {
         self.draw_card_view(self.settings.forward.as_str())
     }
@@ -294,18 +291,18 @@ impl KeyPressedPage for RepetitionState {
             text: _,
             repeat: _,
         } = message
+            && let Code(code) = pk
         {
-            if let Code(code) = pk {
+            return match code {
-                return match code {
+                keyboard::key::Code::Space => self.next(),
-                    keyboard::key::Code::Space => self.next(),
+                keyboard::key::Code::Digit1 => self.answer(WordOpenMode::None),
-                    keyboard::key::Code::Digit1 => self.answer(WordOpenMode::None),
+                keyboard::key::Code::Digit2 => self.answer(WordOpenMode::Hard),
-                    keyboard::key::Code::Digit2 => self.answer(WordOpenMode::Hard),
+                keyboard::key::Code::Digit3 => self.answer(WordOpenMode::Ok),
-                    keyboard::key::Code::Digit3 => self.answer(WordOpenMode::Ok),
+                keyboard::key::Code::Digit4 => self.answer(WordOpenMode::Easy),
-                    keyboard::key::Code::Digit4 => self.answer(WordOpenMode::Easy),
+                _ => Task::none(),
-                    _ => Task::none(),
+            };
-                };
-            }
         }
+
         Task::none()
     }
 }
@@ -322,7 +319,7 @@ 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();

src/repetition_settings.rs

@@ -1,43 +1,50 @@
-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::text_input::Catalog;
 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::{Padding, Theme, color};
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 use std::time::Duration;
 
+
 pub struct RepetitionSettingsState {
-    set: CardSetSettings,
+    set: DeckSettings,
     index: usize,
     state: Arc<Mutex<AppState>>,
     real_delete: bool,
+    correct_filter: bool,
 }
 
 impl RepetitionSettingsState {
-    pub(crate) fn new(index: usize, p1: Arc<Mutex<AppState>>) -> RepetitionSettingsState {
+    pub(crate) fn new(index: usize, state: Arc<Mutex<AppState>>) -> RepetitionSettingsState {
         let set;
         {
-            let local_state = p1.lock().unwrap();
+            let local_state = state.lock();
-            set = local_state.card_sets[index].clone();
+            set = local_state.decks[index].clone();
         }
+        let filter_state = set.check_filter();
+
         RepetitionSettingsState {
             index,
             set,
-            state: p1,
+            state,
             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 {
@@ -45,15 +52,14 @@ impl NavigatedPage<RepetitionSettingsMessage> for RepetitionSettingsState {
         }
     }
 
-    fn navigated(&mut self) {
+    fn navigated(&mut self) {}
-    }
     fn update(&mut self, message: RepetitionSettingsMessage) -> Task<RootMessage> {
         match message {
             Back => {}
             Save => {
-                let mut state = self.state.lock().unwrap();
+                let mut state = self.state.lock();
-                update_card_set(&mut self.set, &state.connection);
+                update_deck(&mut self.set, &state.connection);
-                state.card_sets[self.index] = self.set.clone();
+                state.decks[self.index] = self.set.clone();
             }
             SetName(new) => {
                 self.set.name = new;
@@ -66,25 +72,26 @@ impl NavigatedPage<RepetitionSettingsMessage> for RepetitionSettingsState {
             }
             SetFilter(new) => {
                 self.set.filter = new;
+                self.correct_filter = self.set.check_filter();
             }
             TryFilter => {
-                let state = self.state.lock().unwrap();
+                let state = self.state.lock();
                 let count = self.set.get_word_list(&state).len();
                 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();
+                let mut state = self.state.lock();
                 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()
@@ -112,7 +119,15 @@ impl NavigatedPage<RepetitionSettingsMessage> for 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),
@@ -142,17 +157,15 @@ impl NavigatedPage<RepetitionSettingsMessage> for RepetitionSettingsState {
                 ]
                 .spacing(DEFAULT_SPACING),
             ]
-                .spacing(DEFAULT_SPACING)
+            .spacing(DEFAULT_SPACING)
-                .into(),
+            .into(),
             Back,
         )
     }
 }
 
 impl RepetitionSettingsState {
-
+    fn count_view(&self, set: &DeckSettings) -> Element<'_, RepetitionSettingsMessage> {
-
-    fn count_view(&self, set: &CardSetSettings) -> Element<'_, RepetitionSettingsMessage> {
         if let Some(count) = set.count {
             return text!("Количество слов: {}", count).into();
         }

src/repetitions.rs

@@ -1,7 +1,7 @@
-use crate::data_provider::card_sets::{delete_set, update_card_set};
+use crate::data_provider::card_sets::update_deck;
-use crate::data_provider::card_stats::load_stats_of_set;
+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;
@@ -9,117 +9,220 @@ use crate::repetition_settings::RepetitionSettingsState;
 use crate::repetitions::RepetitionsMessage::*;
 use crate::styling::*;
 use crate::{AppState, RootMessage};
-use chrono::{Days, Local};
+use chrono::{Days, Local, Utc};
-use iced::widget::button::{danger, Status};
+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 std::ops::Deref;
-use rhai::{Engine, Scope};
+use std::sync::Arc;
-use std::sync::{Arc, Mutex};
+use parking_lot::Mutex;
 
 #[derive(Clone)]
 pub struct RepetitionsState {
-    selected_set: Option<usize>,
+    word_id_index_map: HashMap<Id, usize>,
-    correct_filters: Vec<bool>,
+    selected_deck_index: Option<usize>,
-    pub state: Arc<Mutex<AppState>>,
+    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;
+            Some(History(HistoryState::new(
-            {
+                self.selected_deck().unwrap().id,
-                card_set = self.state.lock().unwrap().card_sets[self.selected_set.unwrap()].id;
+                self.state.clone(),
-            }
+            )))
-            Some(History(HistoryState::new(card_set, self.state.clone())))
         } else if let GoToRepetition = message {
             let clone = self.state.clone();
-            let card_set;
+
-            {
+            let selected_set = self.selected_deck_mut().unwrap();
-                card_set = self.state.lock().unwrap().card_sets[self.selected_set.unwrap()].clone();
+            if selected_set.append_mode == AppendMode::Full {
+                Self::append_all_words(&mut clone.lock(), 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()
+                {
+                    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();
+        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()
+        }
     }
     fn update(&mut self, message: RepetitionsMessage) -> Task<RootMessage> {
-        let mut state = self.state.lock().unwrap();
         match message {
             Next => {}
             Back => {}
             GoToRepetition => {}
             GoToHistory => {}
             GoToSettings => {}
+
             CreateSet => {
-                let index = state.card_sets.len() + 1;
+                let index = self.decks.len() + 1;
-                state
+                self.decks.push(DeckViewData {
-                    .card_sets
+                    general_settings: DeckSettings::with_name(format!("Колода #{}", index)),
-                    .push(CardSetSettings::with_name(format!("Card set #{}", index)));
+                    existing_words_indices: None,
-                self.correct_filters.push(true);
+                    available_words_indices: None,
+                    append_mode: Default::default(),
+                    index: None,
+                });
             }
             DeleteSet => {
-                let set = state.card_sets.remove(self.selected_set.unwrap());
+                let index = self.selected_deck_index.unwrap();
-                self.correct_filters.remove(self.selected_set.unwrap());
+                self.clear_selection();
-                self.selected_set = None;
+                let deck = self.decks.remove(index);
-                delete_set(&set, &state.connection);
+                if deck.id.is_valid() {
+                    let mut state = self.state.lock();
+                    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);
+                self.select_deck(index);
-                let mut set = state.card_sets.get(index).unwrap().clone();
+                let deck = self.selected_deck().unwrap();
-                set.update_worst_words(&state);
+                if deck.existing_words_indices.is_none() {
-                state.card_sets[index] = set;
+                    let state = self.state.lock();
-            }
+                    let added: Vec<_> = load_stats_of_deck(deck, &state.connection)
-            SetName(new) => {
+                        .iter()
-                state.card_sets[self.selected_set.unwrap()].name = new;
+                        .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);
+                }
             }
             Save => {
-                for i in 0..state.card_sets.len() {
+                let mut deck = self.selected_deck().unwrap().clone();
-                    self.correct_filters[i] = state.card_sets[i].check_filter();
+                let mut state = self.state.lock();
+                {
+                    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) => {
+            SetForward(value) => {
-                state.card_sets[self.selected_set.unwrap()].forward = new;
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.forward = value;
             }
-            SetBackward(new) => {
+            SetBackward(value) => {
-                state.card_sets[self.selected_set.unwrap()].backward = new;
+                let deck = self.selected_deck_mut().unwrap();
+                deck.general_settings.backward = value;
             }
-            SetFilter(new) => {
+            SetFilter(value) => {
-                state.card_sets[self.selected_set.unwrap()].filter = new;
+                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 state = self.state.lock();
-                let count = set.get_word_list(&state).len();
+                let deck = self.selected_deck().unwrap();
-                state.card_sets[self.selected_set.unwrap()].count = Some(count);
+                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
+                let deck = self.selected_deck_mut().unwrap();
-                    .card_sets
+                deck.general_settings.open_mode = mode;
-                    .get_mut(self.selected_set.unwrap())
+            }
-                    .unwrap()
+            SetAppendMode(mode) => {
-                    .open_mode = 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()
+                            .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();
+                Self::append_words(&mut state, &deck.general_settings, adding.into_iter());
             }
         }
         Task::none()
@@ -129,7 +232,7 @@ impl NavigatedPage<RepetitionsMessage> for RepetitionsState {
         back_overlay(
             row![
                 column![
-                    scrollable(self.sets_list()).height(Fill),
+                    scrollable(self.decks_list()).height(Fill),
                     button("Добавить")
                         .style(jl_button)
                         .width(Fill)
@@ -137,34 +240,65 @@ impl NavigatedPage<RepetitionsMessage> for RepetitionsState {
                 ]
                 .spacing(DEFAULT_SPACING)
                 .width(Length::FillPortion(1)),
-                self.selected_set_view(),
+                self.selected_deck_view(),
             ]
-                .align_y(Center)
+            .align_y(Center)
-                .spacing(DEFAULT_SPACING)
+            .spacing(DEFAULT_SPACING)
-                .width(Fill)
+            .width(Fill)
-                .height(Fill)
+            .height(Fill)
-                .into(),
+            .into(),
             Back,
         )
     }
-
 }
 
 impl RepetitionsState {
     pub(crate) fn new(state: Arc<Mutex<AppState>>) -> RepetitionsState {
-        let count = state.lock().unwrap().card_sets.len();
+        let state_ = state.lock();
+        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 {
-            selected_set: None,
+            word_id_index_map: map,
-            correct_filters: vec![true; count],
+            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> {
-    fn launch_delete_button(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
+        if deck.id.is_valid() {
-        if set.id != 0 {
+            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())
@@ -175,24 +309,15 @@ impl RepetitionsState {
         }
         button("Удалить").style(danger).on_press(DeleteSet).into()
     }
-
+    fn selected_deck_view(&self) -> Element<'_, RepetitionsMessage> {
-    fn selected_set_view(&self) -> Element<'_, RepetitionsMessage> {
+        if let Some(deck) = &self.selected_deck() {
-        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();
-            }
             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),
@@ -201,41 +326,57 @@ 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",
+                                        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
+                                    ),
+                                    button("История").style(jl_button).on_press(GoToHistory),
+                                ]
+                                .spacing(HALF_SPACING)
                             }
                         },
-                        radio(
+                        // self.words_words_view(&set),
-                            "Обычный режим",
-                            SetOrderMode::Default,
-                            Some(set.open_mode),
-                            SetOpenMode
-                        ),
-                        self.words_words_view(&set),
-                        button("История").style(jl_button).on_press(GoToHistory),
                     ]
                     .spacing(DEFAULT_SPACING)
                     .padding(Padding {
@@ -248,40 +389,36 @@ impl RepetitionsState {
                 .height(Fill),
                 row![
                     button("Сохранить").style(jl_button).on_press(Save),
-                    self.launch_delete_button(&set)
+                    self.launch_delete_button(deck)
                 ]
-                .spacing(DEFAULT_SPACING),
+                .spacing(DEFAULT_SPACING)
+                .align_y(Center),
             ]
             .spacing(DEFAULT_SPACING)
-            .width(Length::FillPortion(3))
+            .width(Length::FillPortion(2))
             .into();
         }
-        space().width(Length::FillPortion(3)).into()
+        space().width(Length::FillPortion(2)).into()
     }
-
+    fn filled_deck_data_view(&self, deck: &DeckSettings) -> Column<'_, RepetitionsMessage> {
-    fn filled_set_data_view(&self, set: &CardSetSettings) -> Column<'_, RepetitionsMessage> {
+        column![self.activity_bar(deck), self.count_comparator_view()]
-        column![self.activity_bar(set)].align_x(Center)
+            .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 state = self.state.lock();
-        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;
                 }
@@ -300,8 +437,7 @@ impl RepetitionsState {
                 })
                 .spacing(QUARTER_SPACING);
 
-
+            let mut iter = counts.iter();
-            let mut iter = counts.into_iter();
             for i in 0..30 {
                 let mut column = Column::new().spacing(QUARTER_SPACING);
 
@@ -309,13 +445,17 @@ 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,
@@ -332,67 +472,81 @@ impl RepetitionsState {
 
                 row = row.push(column);
             }
-            scrollable(column!["Карта активности", row].spacing(QUARTER_SPACING).align_x(Center))
+            scrollable(
-        }).into()
+                column!["Карта активности", row]
-
+                    .spacing(QUARTER_SPACING)
-    }
+                    .align_x(Center),
-
-    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
             )
-        ]
+        })
-        .spacing(DEFAULT_SPACING)
         .into()
     }
-
+    fn word_append_panel(&self, deck: &DeckViewData) -> Element<'_, RepetitionsMessage> {
-    fn worst_words_list(&self, set: &CardSetSettings) -> Element<'_, RepetitionsMessage> {
+        column![
-        let mut column = Column::new();
+            text!("Режим добавления карточек"),
-
+            row![
-        for word in set.worst_words_list.clone().unwrap() {
+                radio(
-            column = column.push(text!("{} | {}", &word.key, &word.value));
+                    "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> {
+    fn count_comparator_view(&self) -> Element<'_, RepetitionsMessage> {
-        if let Some(count) = set.count {
+        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 decks_list(&self) -> Column<'_, RepetitionsMessage> {
-    fn sets_list(&self) -> Column<'_, RepetitionsMessage> {
         let mut column = Column::new();
-        let mut i = 0;
+
-        let sets = &self.state.lock().unwrap().card_sets;
+        for (i, deck) in self.decks.iter().enumerate() {
-        for set in sets {
             column = column.push(
-                button(text!("{}", set.name.clone()))
+                button(text!("{}", &deck.name))
-                    .on_press_with(move || SelectSet(i.clone()))
+                    .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()] {
+                        text_color: _x.palette().primary,
-                            _x.palette().primary
-                        } else {
-                            _x.palette().warning
-                        },
                         border: Border {
                             color: Default::default(),
                             width: 0.0,
@@ -402,13 +556,69 @@ 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,
@@ -423,111 +633,25 @@ pub enum RepetitionsMessage {
     SetBackward(String),
     SetFilter(String),
     TryFilter,
-    SetOpenMode(SetOrderMode),
+    SetOpenMode(OrderMode),
+    SetAppendMode(AppendMode),
     GoToHistory,
     GoToSettings,
+    AppendWords(usize),
 }
 
 #[derive(Clone)]
-pub struct CardSetSettings {
+struct DeckViewData {
-    pub id: u32,
+    general_settings: DeckSettings,
-    pub name: String,
+    existing_words_indices: Option<Vec<usize>>,
-    pub forward: String,
+    available_words_indices: Option<Vec<usize>>,
-    pub backward: String,
+    append_mode: AppendMode,
-    pub filter: String,
+    index: Option<usize>,
-    pub count: Option<usize>,
-    pub worst_words_list: Option<Vec<WordData>>,
-    pub open_mode: SetOrderMode,
 }
+impl Deref for DeckViewData {
+    type Target = DeckSettings;
 
-impl CardSetSettings {
+    fn deref(&self) -> &Self::Target {
-    fn with_name(name: String) -> CardSetSettings {
+        &self.general_settings
-        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());
     }
 }

src/selector.rs

@@ -15,7 +15,8 @@ use iced::{Element, Task, alignment};
 use iced_core::Alignment::Center;
 use iced_core::Background;
 use iced_core::Color;
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 
 pub struct SelectorState {
     pub set: KanaSet,
@@ -36,7 +37,7 @@ 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);
@@ -62,8 +63,7 @@ impl NavigatedPage<SelectorMessage> for SelectorState {
         None
     }
 
-    fn navigated(&mut self) {
+    fn navigated(&mut self) {}
-    }
     fn update(&mut self, message: SelectorMessage) -> Task<RootMessage> {
         match message {
             SelectorMessage::Change => match self.set.chars_type {
@@ -105,10 +105,10 @@ impl NavigatedPage<SelectorMessage> for SelectorState {
                     .on_press(SelectorMessage::Goto)
                     .style(cta_button),
             ]
-                .spacing(DEFAULT_SPACING),
+            .spacing(DEFAULT_SPACING),
         )
-            .padding(10)
+        .padding(10)
-            .into()
+        .into()
     }
 }
 
@@ -121,7 +121,6 @@ impl SelectorState {
         }
     }
 
-
     fn nav_style(theme: &Theme, status: Status) -> Style {
         let mut basic = button::text(theme, status);
         basic.background = if status == Status::Hovered {
@@ -133,8 +132,6 @@ impl SelectorState {
         basic
     }
 
-
-
     fn rows_selector(&self) -> Element<'_, SelectorMessage> {
         let mut row = Row::new();
 

src/styling.rs

@@ -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;

src/sync.rs

@@ -4,15 +4,15 @@ 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};
 use iced::{Center, Element, Fill, Font, Length, Task};
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 use std::time::Duration;
 
-
 #[derive(Clone)]
 pub enum SyncMessage {
     Back,
@@ -38,7 +38,7 @@ 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
         {
@@ -53,7 +53,7 @@ impl NavigatedPage<SyncMessage> for SyncState {
         match message {
             Back => {}
             CopyKey => {
-                let state = self.state.lock().unwrap();
+                let state = self.state.lock();
                 let key = state.sync_data.key.clone().unwrap();
                 return iced::clipboard::write(key)
                     .map(|_val: String| RootMessage::Sync(KeyCopied));
@@ -67,17 +67,17 @@ impl NavigatedPage<SyncMessage> for 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();
+                let mut state = self.state.lock();
                 state.sync_data.key = Some(new_id.clone());
                 set_setting("SYNC_KEY".to_string(), new_id, &state.connection);
             }
             Send => {
                 self.prepare_to_db_interaction();
 
-                let id = self.state.lock().unwrap().sync_data.key.clone().unwrap();
+                let id = self.state.lock().sync_data.key.clone().unwrap();
                 let tasks = Task::batch([
                     Task::perform(
                         async { tokio::time::sleep(Duration::from_millis(200)).await },
@@ -89,7 +89,7 @@ impl NavigatedPage<SyncMessage> for SyncState {
                 return tasks;
             }
             GetLast => {
-                let id = self.state.lock().unwrap().sync_data.key.clone().unwrap();
+                let id = self.state.lock().sync_data.key.clone().unwrap();
                 let tasks = Task::batch([
                     Task::perform(
                         async { tokio::time::sleep(Duration::from_millis(200)).await },
@@ -117,26 +117,29 @@ impl NavigatedPage<SyncMessage> for SyncState {
                 let mut updated_state = AppState::new();
                 fill_state(&mut updated_state);
 
-                let mut state = self.state.lock().unwrap();
+                let mut state = self.state.lock();
                 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;
             }
             Disable => {}
             DisableSync => {
-                let mut state = self.state.lock().unwrap();
+                let mut state = self.state.lock();
                 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();
+                let mut state = self.state.lock();
                 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()
@@ -157,7 +160,7 @@ impl SyncState {
     pub fn new(state: Arc<Mutex<AppState>>) -> SyncState {
         let auto_fetch;
         {
-            auto_fetch = state.lock().unwrap().sync_data.auto_web_fetch;
+            auto_fetch = state.lock().sync_data.auto_web_fetch;
         }
         Self {
             auto_fetch,
@@ -167,8 +170,6 @@ impl SyncState {
         }
     }
 
-
-
     fn sync_column(&self) -> Element<'_, SyncMessage> {
         let network_view: Element<'_, SyncMessage> = if self.frozen {
             progress_bar(0.0..=5.0, self.progress).into()
@@ -176,7 +177,7 @@ impl SyncState {
             space().into()
         };
         {
-            if let Some(key) = self.state.lock().unwrap().sync_data.key.clone() {
+            if let Some(key) = self.state.lock().sync_data.key.clone() {
                 column![
                     text!("Ваш ключ синхронизации"),
                     container(
@@ -198,7 +199,9 @@ 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)
@@ -231,7 +234,7 @@ impl SyncState {
         }
         self.frozen = true;
         self.progress = 0.0;
-        let state = self.state.lock().unwrap();
+        let state = self.state.lock();
         state
             .connection
             .query_row("PRAGMA wal_checkpoint(TRUNCATE)", [], |_| Ok(()))

src/word.rs

@@ -8,7 +8,8 @@ use crate::{AppState, RootMessage};
 use iced::widget::button::danger;
 use iced::widget::{button, column, row, rule, scrollable, text, text_input};
 use iced::{Element, Fill, Task};
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
+use parking_lot::Mutex;
 
 #[derive(Clone)]
 pub struct WordState {
@@ -18,7 +19,7 @@ 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 {
@@ -31,13 +32,13 @@ impl NavigatedPage<WordMessage> for WordState {
         match message {
             Back => {}
             Save => {
-                let mut state = self.state.lock().unwrap();
+                let mut state = self.state.lock();
                 state.dictionary[self.index] = self.word.clone();
                 update_word(&mut self.word, &state.connection);
                 return Task::done(RootMessage::Word(Back));
             }
             Delete => {
-                let mut state = self.state.lock().unwrap();
+                let mut state = self.state.lock();
                 state.dictionary.remove(self.index);
                 delete_word(&self.word, &state.connection);
                 return Task::done(RootMessage::Word(Back));
@@ -49,11 +50,9 @@ impl NavigatedPage<WordMessage> for WordState {
             SetValue(n) => {
                 self.word.value = n;
             }
-            SetAdditional(key, value) => match key.as_str() {
+            SetAdditional(key, value) => {
-                _ => {
+                self.word.additional.insert(key, value.clone());
-                    self.word.additional.insert(key, value.clone());
+            }
-                }
-            },
             AddAdditional(key) => {
                 self.word.additional.insert(key, "".to_string());
             }
@@ -145,23 +144,18 @@ impl WordState {
         }
     }
 
-    fn reading_field(&self, value:  &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) -> 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) -> Element<'_, WordMessage> {
+    fn context_field(&self, value: &str) -> Element<'_, WordMessage> {
         self.additional_field(value, "В контексте".to_string(), "context".to_string())
     }
-    fn additional_field(
+    fn additional_field(&self, value: &str, name: String, id: String) -> Element<'_, WordMessage> {
-        &self,
-        value: &String,
-        name: String,
-        id: String,
-    ) -> Element<'_, WordMessage> {
         column![
             text!("{}", name),
             row![

src/writing.rs

@@ -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 {
@@ -27,11 +27,10 @@ impl NavigatedPage<WritingMessage> for WritingState {
         }
     }
 
-    fn navigated(&mut self) {
+    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,
         }
@@ -56,13 +55,13 @@ impl NavigatedPage<WritingMessage> for WritingState {
                 ]
                 .spacing(DEFAULT_SPACING)
             ]
-                .spacing(DEFAULT_SPACING)
+            .spacing(DEFAULT_SPACING)
-                .align_x(alignment::Horizontal::Center),
+            .align_x(alignment::Horizontal::Center),
         )
-            .center_x(Fill)
+        .center_x(Fill)
-            .center_y(Fill)
+        .center_y(Fill)
-            .padding(10)
+        .padding(10)
-            .into()
+        .into()
     }
 }
 
@@ -83,8 +82,6 @@ impl WritingState {
 }
 
 impl WritingState {
-
-
     fn next(&mut self) {
         if self.set.is_empty() {
             self.kana = "".to_string();
@@ -97,24 +94,22 @@ impl WritingState {
         }
 
         if self.show_all {
-            if self.set.is_empty() == false && self.kana_total.is_empty() == false {
+            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.roman_total += &*format!("{} ", pair.1.clone()).to_string();
-                self.kana_total += &*format!("{} ", &pair.0).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.kana_total += &*format!("{} ", current.0).to_string();
-            self.roman_total += &*format!("{} ", &current.1.clone()).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() {
             text!("{}", self.kana_total).size(36).into()