code cleanup

src/data_provider/history.rs

@@ -33,7 +33,6 @@ 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>>()[..] {
-            
             items.push(HistoryItem {
                 timestamp: DateTime::from_timestamp(time.parse().unwrap(), 0).unwrap(),
                 word_id: word.parse::<u32>().unwrap(),
@@ -55,16 +54,25 @@ fn parse_history_items(strings: Vec<String>) -> Vec<HistoryItem> {
 pub fn push_note(set_id: u32, item: HistoryItem) {
     let app_dir = app_data_dir();
     let path = app_dir.clone().join(format!("set_{}_history.csv", set_id));
-    
-    let mut file = OpenOptions::new().create(true).append(true).open(path).unwrap();
-    let line_str = format!("{};{};{};{};{}", item.timestamp.timestamp(), item.word_id, match item.mode {
-        WordOpenMode::Easy => 4,
-        WordOpenMode::Ok => 3,
-        WordOpenMode::Hard => 2,
-        WordOpenMode::None => 1
-    },
-                           item.before,
-                           item.after);
+
+    let mut file = OpenOptions::new()
+        .create(true)
+        .append(true)
+        .open(path)
+        .unwrap();
+    let line_str = format!(
+        "{};{};{};{};{}",
+        item.timestamp.timestamp(),
+        item.word_id,
+        match item.mode {
+            WordOpenMode::Easy => 4,
+            WordOpenMode::Ok => 3,
+            WordOpenMode::Hard => 2,
+            WordOpenMode::None => 1,
+        },
+        item.before,
+        item.after
+    );
     writeln!(&mut file, "{}", line_str.to_string()).unwrap();
 }