Faster new set initializing

src/data_provider/card_stats.rs

@@ -1,6 +1,7 @@
 use crate::lang::CardStatistics;
 use crate::repetitions::CardSetSettings;
 use rusqlite::Connection;
+use std::time::Instant;
 
 pub fn load_stats_of_set(set: &CardSetSettings, connection: &Connection) -> Vec<CardStatistics> {
     let mut stmt = connection.prepare("SELECT id, word_id, score, last_opened FROM card_stats WHERE set_id = ?1").unwrap();
@@ -22,7 +23,37 @@ pub fn load_stats_of_set(set: &CardSetSettings, connection: &Connection) -> Vec<
     buffer
 }
 
+
+pub fn add_stat_list(stat: &mut Vec<CardStatistics>, connection: &Connection) {
+    let inserting = stat.iter().map(|stat| format!("({}, {}, {}, {})", stat.word_id.to_string(), stat.set_id.to_string(), stat.score.to_string(), stat.last_open.timestamp().to_string())).collect::<Vec<_>>().join(", ");
+    let query = format!("INSERT INTO card_stats (word_id, set_id, score, last_opened) VALUES {}", inserting);
+    let count = connection
+        .execute(
+            query.as_str(),
+            (
+            ),
+        );
+
+    if count.is_err() {
+        println!("{}", count.unwrap_err());
+        return;
+    }
+
+    let last_index : u32 = connection.query_one("SELECT seq from sqlite_sequence WHERE name == ?1", ("card_stats".to_string(),), |row| row.get(0)).unwrap();
+
+    let start_index = last_index - (count.unwrap() as u32) + 1;
+
+    let mut index = 0;
+    for id in start_index..=last_index {
+        stat[index].id = id as u32;
+        index += 1;
+    }
+
+}
+
+
 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",
@@ -37,9 +68,12 @@ pub fn add_stat(stat: &mut CardStatistics, connection: &Connection) {
         .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();
+
         connection
             .execute(
                 "UPDATE card_stats SET score = ?1, last_opened = ?2 WHERE id = ?3",
@@ -50,6 +84,8 @@ pub fn update_stat_score(stat: &CardStatistics, connection: &Connection){
                 ),
             )
             .unwrap_or_else(|e| {println!("{}", e); 0});
+    println!("Updated stat: {}", time.elapsed().as_millis());
+
 }
 
 pub fn delete_stat(stat: &CardStatistics, connection: &Connection) {