обновление

.gitignore

@@ -1 +1,2 @@
 /target
+/.idea

Cargo.lock

@@ -48,6 +48,15 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
+[[package]]
+name = "bincode"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -972,10 +981,12 @@ dependencies = [
 
 [[package]]
 name = "rumus"
-version = "0.1.0"
+version = "0.5.0"
 dependencies = [
+ "bincode",
  "crossterm",
  "dirs",
+ "encoding_rs",
  "lofty",
  "ratatui",
  "rodio",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rumus"
-version = "0.1.0"
+version = "0.5.0"
 edition = "2024"
 
 [dependencies]
@@ -12,4 +12,6 @@ dirs = "5"
 lofty = "0.22"
 serde = { version = "1", features = ["derive"] }
 toml = "0.8"
-rustfft = "6"
+rustfft = "6"
+bincode = "1.3"
+encoding_rs = "0.8"

src/app.rs

@@ -1,9 +1,11 @@
-use std::time::Duration;
+use std::collections::HashSet;
+use std::path::PathBuf;
+use std::time::{Duration, Instant};
 
 use crate::audio::AudioPlayer;
-use crate::library::{Library, SortMode};
+use crate::library::{Library, RightRow, SortMode};
 use crate::state::{RepeatMode, SavedState};
-use crate::track::scan_dir;
+use crate::track::{scan_source, Track};
 
 #[derive(Clone, Copy, PartialEq)]
 pub enum Panel {
@@ -15,6 +17,7 @@ pub enum Panel {
 pub enum InputMode {
     Normal,
     Search,
+    Command,
 }
 
 pub struct App {
@@ -25,35 +28,69 @@ pub struct App {
     pub active_panel: Panel,
     pub input_mode: InputMode,
     pub search_buffer: String,
-    /// Исходный (неотфильтрованный) список треков — для пересборки библиотеки
-    raw_tracks: Vec<crate::track::Track>,
-    /// Директория с музыкой — чтобы сохранить в state
-    music_dir: String,
+    pub command_buffer: String,
+    pub request_quit: bool,
+    raw_tracks: Vec<Track>,
+    default_dir: String,
+    /// Единый список источников: папки и плейлисты.
+    sources: Vec<String>,
+    deleted_paths: HashSet<PathBuf>,
     pub repeat: RepeatMode,
     pub shuffle: bool,
+    pub show_help: bool,
+    pub show_libs: bool,
+    status_set_at: Instant,
 }
 
+const STATUS_RESET_AFTER: Duration = Duration::from_secs(2);
+
 impl App {
     pub fn new(music_dir: &str) -> Result<Self, Box<dyn std::error::Error>> {
-        let tracks = scan_dir(music_dir);
-        let library = Library::build(tracks.clone(), SortMode::ByArtist);
+        let saved = crate::state::load();
 
         let mut app = Self {
-            library,
+            library: Library::build(Vec::new(), SortMode::ByArtist),
             player: AudioPlayer::new()?,
-            status: "? — help".into(),
+            status: "F1 - помощь, : - команда".into(),
             playing_index: None,
             active_panel: Panel::Left,
             input_mode: InputMode::Normal,
             search_buffer: String::new(),
-            raw_tracks: tracks,
-            music_dir: music_dir.to_string(),
+            command_buffer: String::new(),
+            request_quit: false,
+            raw_tracks: Vec::new(),
+            default_dir: music_dir.to_string(),
+            sources: saved.sources.clone(),
+            deleted_paths: HashSet::new(),
             repeat: RepeatMode::Off,
             shuffle: false,
+            show_help: false,
+            show_libs: false,
+            status_set_at: Instant::now(),
         };
 
-        // Восстанавливаем сохранённое состояние
-        let saved = crate::state::load();
+        // Если sources пуст — первый запуск, добавляем базовую директорию
+        if app.sources.is_empty() {
+            app.sources.push(music_dir.to_string());
+        }
+
+        // Пробуем загрузить кэш
+        let cached = crate::state::load_cache();
+        app.raw_tracks = match cached {
+            Some(c) if !c.is_empty() => c,
+            _ => {
+                let mut tracks = Vec::new();
+                for src in &app.sources {
+                    let path = PathBuf::from(src);
+                    tracks.extend(scan_source(&path));
+                }
+                crate::state::save_cache(&tracks);
+                tracks
+            }
+        };
+
+        app.rebuild_library();
+
         if let Some(vol) = saved.volume {
             app.player.set_volume(vol);
         }
@@ -63,20 +100,472 @@ impl App {
         if let Some(sh) = saved.shuffle {
             app.shuffle = sh;
         }
-        if saved.sort_by_filename == Some(true) {
-            app.library = Library::build(app.raw_tracks.clone(), SortMode::ByFilename);
+        if let Some(mode) = saved.sort_mode {
+            if mode != SortMode::ByArtist {
+                app.library = Library::build(app.raw_tracks.clone(), mode);
+            }
         }
 
+        app.restore_playing(&saved);
         Ok(app)
     }
 
+    fn set_status(&mut self, text: String) {
+        self.status = text;
+        self.status_set_at = Instant::now();
+    }
+
+    fn default_status(&self) -> String {
+        match self.playing_index.and_then(|i| self.library.track(i)) {
+            Some(t) => format!("{} — {}", t.artist, t.title),
+            None => "F1 - помощь, : - команда".into(),
+        }
+    }
+
+    pub fn tick_status(&mut self) {
+        if self.input_mode != InputMode::Normal {
+            return;
+        }
+        if self.status_set_at.elapsed() < STATUS_RESET_AFTER {
+            return;
+        }
+        let default = self.default_status();
+        if self.status != default {
+            self.status = default;
+        }
+    }
+
+    fn restore_playing(&mut self, saved: &SavedState) {
+        let Some(path_str) = &saved.last_playing_path else {
+            return;
+        };
+
+        let target_path = std::path::PathBuf::from(path_str);
+        let Some(idx) = self
+            .library
+            .all_tracks
+            .iter()
+            .position(|t| t.path == target_path)
+        else {
+            return;
+        };
+
+        let start_pos = saved.last_playing_pos_secs.map(Duration::from_secs);
+
+        if let Some(track) = self.library.track(idx).cloned() {
+            if self.player.play(&track.path, start_pos).is_ok() {
+                self.playing_index = Some(idx);
+                self.library.sync_with_playing(idx);
+                self.player.toggle_pause();
+                self.set_status(format!("Восстановлен: {} — {}", track.artist, track.title));
+            }
+        }
+    }
+
+    pub fn toggle_help(&mut self) {
+        self.show_help = !self.show_help;
+    }
+
+    // ── Командный режим (:) ────────────────────────────────────
+
+    pub fn start_command(&mut self) {
+        self.input_mode = InputMode::Command;
+        self.command_buffer.clear();
+        self.status_set_at = Instant::now();
+    }
+
+    pub fn cancel_command(&mut self) {
+        self.input_mode = InputMode::Normal;
+        self.command_buffer.clear();
+        self.set_status("Команда отменена".into());
+    }
+
+    pub fn command_push(&mut self, c: char) {
+        self.command_buffer.push(c);
+        self.status_set_at = Instant::now();
+    }
+
+    pub fn command_pop(&mut self) {
+        self.command_buffer.pop();
+        self.status_set_at = Instant::now();
+    }
+
+    pub fn commit_command(&mut self) {
+        let cmd = self.command_buffer.trim().to_string();
+        self.input_mode = InputMode::Normal;
+        self.command_buffer.clear();
+
+        if cmd.is_empty() {
+            return;
+        }
+
+        let mut parts = cmd.splitn(2, char::is_whitespace);
+        let name = parts.next().unwrap_or("");
+        let args = parts.next().unwrap_or("").trim();
+
+        match name {
+            "add" => self.add_source(args),
+            "load" => self.load_source(args),
+            "reload" => self.reload_library(),
+            "save" => self.save_now(),
+            "savepl" => self.save_playlist(args),
+            "libs" => {
+                self.show_libs = true;
+                self.set_status("Источники библиотеки".into());
+            }
+            "rm" => self.remove_source(args),
+            "clear" => self.clear_sources(),
+            "help" => {
+                self.show_help = true;
+                self.set_status("Справка".into());
+            }
+            "q" | "quit" => {
+                self.request_quit = true;
+            }
+            _ => {
+                self.set_status(format!("Неизвестная команда: {}", name));
+            }
+        }
+    }
+
+    fn add_source(&mut self, raw_path: &str) {
+        if raw_path.is_empty() {
+            self.set_status("Использование: :add <путь>".into());
+            return;
+        }
+
+        let expanded = expand_tilde(raw_path);
+        let path = PathBuf::from(&expanded);
+
+        if !path.exists() {
+            self.set_status(format!("Путь не существует: {}", expanded));
+            return;
+        }
+
+        self.set_status(format!("Сканирование {}...", expanded));
+        let new_tracks = scan_source(&path);
+
+        if new_tracks.is_empty() {
+            self.set_status(format!("Нет треков в {}", expanded));
+            return;
+        }
+
+        let existing: HashSet<PathBuf> = self.raw_tracks.iter().map(|t| t.path.clone()).collect();
+        let mut added = 0;
+        for track in new_tracks {
+            if !existing.contains(&track.path) && !self.deleted_paths.contains(&track.path) {
+                self.raw_tracks.push(track);
+                added += 1;
+            }
+        }
+
+        if !self.sources.contains(&expanded) {
+            self.sources.push(expanded.clone());
+        }
+
+        self.rebuild_library();
+        crate::state::save_cache(&self.raw_tracks);
+        self.set_status(format!("Добавлено {} треков из {}", added, expanded));
+    }
+
+    fn load_source(&mut self, raw_path: &str) {
+        if raw_path.is_empty() {
+            self.set_status("Использование: :load <путь>".into());
+            return;
+        }
+
+        let expanded = expand_tilde(raw_path);
+        let path = PathBuf::from(&expanded);
+
+        if !path.exists() {
+            self.set_status(format!("Путь не существует: {}", expanded));
+            return;
+        }
+
+        self.set_status(format!("Загрузка {}...", expanded));
+        let new_tracks = scan_source(&path);
+
+        if new_tracks.is_empty() {
+            self.set_status(format!("Нет треков в {}", expanded));
+            return;
+        }
+
+        // Очищаем текущую сессию
+        self.raw_tracks = new_tracks;
+        self.sources = vec![expanded.clone()];
+        self.deleted_paths.clear();
+
+        self.rebuild_library();
+        crate::state::save_cache(&self.raw_tracks);
+        self.set_status(format!("Загружено {} треков из {}", self.raw_tracks.len(), expanded));
+    }
+
+    fn remove_source(&mut self, arg: &str) {
+        let idx: usize = match arg.parse() {
+            Ok(i) => i,
+            Err(_) => {
+                self.set_status("Использование: :rm <индекс>".into());
+                return;
+            }
+        };
+
+        if idx >= self.sources.len() {
+            self.set_status(format!("Нет источника с индексом {}", idx));
+            return;
+        }
+
+        let removed = self.sources.remove(idx);
+        self.set_status(format!("Источник удалён: {}", removed));
+        self.reload_library();
+    }
+
+    fn clear_sources(&mut self) {
+        if self.sources.is_empty() {
+            self.set_status("Список источников уже пуст".into());
+            return;
+        }
+        self.sources.clear();
+        self.raw_tracks.clear();
+        self.deleted_paths.clear();
+        self.playing_index = None;
+        self.player.stop();
+        self.rebuild_library();
+        crate::state::save_cache(&self.raw_tracks);
+        self.set_status("Все источники удалены".into());
+    }
+
+    fn rebuild_from_sources(&mut self) {
+        let mut all = Vec::new();
+        for src in &self.sources {
+            let path = PathBuf::from(expand_tilde(src));
+            all.extend(scan_source(&path));
+        }
+
+        let mut seen = HashSet::new();
+        all.retain(|t| seen.insert(t.path.clone()));
+
+        self.raw_tracks = all;
+        self.deleted_paths.clear();
+
+        crate::state::save_cache(&self.raw_tracks);
+        self.rebuild_library();
+    }
+
+    pub fn reload_library(&mut self) {
+        self.rebuild_from_sources();
+        self.set_status(format!("Пересканировано {} треков", self.raw_tracks.len()));
+    }
+
+    pub fn save_now(&mut self) {
+        self.persist();
+        let msg = format!("Сохранено {} треков", self.raw_tracks.len());
+        self.set_status(msg);
+    }
+
+    fn save_playlist(&mut self, raw_path: &str) {
+        if raw_path.is_empty() {
+            self.set_status("Использование: :savepl <файл.m3u|.pls>".into());
+            return;
+        }
+
+        let path = PathBuf::from(expand_tilde(raw_path));
+        let is_pls = path
+            .extension()
+            .and_then(|e| e.to_str())
+            .map(|s| s.eq_ignore_ascii_case("pls"))
+            .unwrap_or(false);
+
+        let tracks: Vec<Track> = self
+            .raw_tracks
+            .iter()
+            .filter(|t| !self.deleted_paths.contains(&t.path))
+            .cloned()
+            .collect();
+
+        let res = if is_pls {
+            crate::track::save_playlist_pls(&path, &tracks)
+        } else {
+            crate::track::save_playlist_m3u(&path, &tracks)
+        };
+
+        match res {
+            Ok(_) => self.set_status(format!("Плейлист сохранён: {}", path.display())),
+            Err(e) => self.set_status(format!("Ошибка сохранения: {}", e)),
+        }
+    }
+
+    // ── Удаление из списка (клавиша Del) ───────────────────────
+    pub fn delete_selected(&mut self) {
+        match self.active_panel {
+            Panel::Left => self.delete_current_left_group(),
+            Panel::Right => self.delete_current_right_item(),
+        }
+        self.rebuild_library();
+    }
+
+    fn delete_current_left_group(&mut self) {
+        let Some(group) = self.library.artists.get(self.library.artist_selected) else {
+            return;
+        };
+        let group_name = group.name.clone();
+
+        let to_remove: Vec<PathBuf> = group
+            .rows
+            .iter()
+            .filter_map(|r| match r {
+                RightRow::Track { index_in_library } => {
+                    self.library.track(*index_in_library).map(|t| t.path.clone())
+                }
+                _ => None,
+            })
+            .collect();
+
+        let count = to_remove.len();
+        for p in &to_remove {
+            self.deleted_paths.insert(p.clone());
+        }
+        self.raw_tracks
+            .retain(|t| !self.deleted_paths.contains(&t.path));
+
+        if let Some(idx) = self.playing_index {
+            if let Some(t) = self.library.track(idx) {
+                if to_remove.contains(&t.path) {
+                    self.player.stop();
+                    self.playing_index = None;
+                }
+            }
+        }
+
+        self.set_status(format!("Удалено: {} ({} треков)", group_name, count));
+    }
+
+    fn delete_current_right_item(&mut self) {
+        let rows = self.library.current_right_rows();
+        let Some(row) = rows.get(self.library.right_selected).cloned() else {
+            return;
+        };
+
+        match row {
+            RightRow::Track { index_in_library } => {
+                if let Some(track) = self.library.track(index_in_library).cloned() {
+                    let name = format!("{} — {}", track.artist, track.title);
+                    self.deleted_paths.insert(track.path.clone());
+                    self.raw_tracks.retain(|t| t.path != track.path);
+
+                    if Some(index_in_library) == self.playing_index {
+                        self.player.stop();
+                        self.playing_index = None;
+                    }
+
+                    self.set_status(format!("Удалено: {}", name));
+                }
+            }
+            RightRow::AlbumHeader { name } => {
+                let start = self.library.right_selected + 1;
+                let mut to_remove: Vec<PathBuf> = Vec::new();
+                for r in rows.iter().skip(start) {
+                    match r {
+                        RightRow::Track { index_in_library } => {
+                            if let Some(t) = self.library.track(*index_in_library) {
+                                to_remove.push(t.path.clone());
+                            }
+                        }
+                        RightRow::AlbumHeader { .. } => break,
+                    }
+                }
+
+                let count = to_remove.len();
+                for p in &to_remove {
+                    self.deleted_paths.insert(p.clone());
+                }
+                self.raw_tracks
+                    .retain(|t| !self.deleted_paths.contains(&t.path));
+
+                if let Some(idx) = self.playing_index {
+                    if let Some(t) = self.library.track(idx) {
+                        if to_remove.contains(&t.path) {
+                            self.player.stop();
+                            self.playing_index = None;
+                        }
+                    }
+                }
+
+                self.set_status(format!("Удалено: {} ({} треков)", name, count));
+            }
+        }
+    }
+
+    // ── Переключение треков ────────────────────────────────────
+
+    pub fn next_track(&mut self) {
+        let total = self.library.all_tracks.len();
+        if total == 0 {
+            self.set_status("Библиотека пуста".into());
+            return;
+        }
+
+        let next = match self.playing_index {
+            Some(i) if i + 1 < total => i + 1,
+            Some(_) => {
+                if self.repeat == RepeatMode::Off {
+                    self.set_status("Конец плейлиста".into());
+                    return;
+                }
+                0
+            }
+            None => 0,
+        };
+
+        self.play_index(next);
+        self.library.sync_with_playing(next);
+    }
+
+    pub fn prev_track(&mut self) {
+        let total = self.library.all_tracks.len();
+        if total == 0 {
+            self.set_status("Библиотека пуста".into());
+            return;
+        }
+
+        let prev = match self.playing_index {
+            Some(0) => {
+                if self.repeat == RepeatMode::Off {
+                    self.set_status("Это первый трек".into());
+                    return;
+                }
+                total - 1
+            }
+            Some(i) => i - 1,
+            None => 0,
+        };
+
+        self.play_index(prev);
+        self.library.sync_with_playing(prev);
+    }
+
     fn persist(&self) {
+        crate::state::save_cache(&self.raw_tracks);
+
+        let playing_path = self
+            .playing_index
+            .and_then(|i| self.library.track(i))
+            .map(|t| t.path.to_string_lossy().to_string());
+
+        let playing_pos = if self.playing_index.is_some() {
+            Some(self.player.position().as_secs())
+        } else {
+            None
+        };
+
         let state = SavedState {
-            last_path: Some(self.music_dir.clone()),
+            last_path: Some(self.default_dir.clone()),
             volume: Some(self.player.volume()),
-            sort_by_filename: Some(self.library.sort_mode == SortMode::ByFilename),
+            sort_mode: Some(self.library.sort_mode),
             repeat: Some(self.repeat),
             shuffle: Some(self.shuffle),
+            last_playing_path: playing_path,
+            last_playing_pos_secs: playing_pos,
+            sources: self.sources.clone(),
         };
         crate::state::save(&state);
     }
@@ -90,44 +579,47 @@ impl App {
     pub fn start_search(&mut self) {
         self.input_mode = InputMode::Search;
         self.search_buffer.clear();
-        self.status = "Поиск: ".into();
+        self.status_set_at = Instant::now();
     }
 
     pub fn cancel_search(&mut self) {
         self.input_mode = InputMode::Normal;
         self.search_buffer.clear();
         self.rebuild_library();
-        self.status = "Поиск отменён".into();
+        self.set_status("Поиск отменён".into());
     }
 
     pub fn commit_search(&mut self) {
         self.input_mode = InputMode::Normal;
-        self.status = if self.search_buffer.is_empty() {
-            "Фильтр сброшен".into()
+        let msg = if self.search_buffer.is_empty() {
+            "Фильтр сброшен".to_string()
         } else {
             format!("Фильтр: {}", self.search_buffer)
         };
+        self.set_status(msg);
     }
 
     pub fn search_push(&mut self, c: char) {
         self.search_buffer.push(c);
         self.rebuild_library();
-        self.status = format!("Поиск: {}", self.search_buffer);
+        self.status_set_at = Instant::now();
     }
 
     pub fn search_pop(&mut self) {
         self.search_buffer.pop();
         self.rebuild_library();
-        self.status = format!("Поиск: {}", self.search_buffer);
+        self.status_set_at = Instant::now();
     }
 
     fn rebuild_library(&mut self) {
         let mode = self.library.sort_mode;
-        self.library = Library::build_with_filter(
-            self.raw_tracks.clone(),
-            mode,
-            self.search_buffer.clone(),
-        );
+        let filtered: Vec<Track> = self
+            .raw_tracks
+            .iter()
+            .filter(|t| !self.deleted_paths.contains(&t.path))
+            .cloned()
+            .collect();
+        self.library = Library::build_with_filter(filtered, mode, self.search_buffer.clone());
         if let Some(i) = self.playing_index {
             self.library.sync_with_playing(i);
         }
@@ -154,27 +646,29 @@ impl App {
             Panel::Left => Panel::Right,
             Panel::Right => Panel::Left,
         };
-        self.status = match self.active_panel {
-            Panel::Left => "Активна: исполнители".into(),
-            Panel::Right => "Активна: альбомы/треки".into(),
+        let msg = match self.active_panel {
+            Panel::Left => "Активна: левая панель".to_string(),
+            Panel::Right => "Активна: правая панель".to_string(),
         };
+        self.set_status(msg);
     }
 
-    /// f — прыжок к играющему треку
     pub fn jump_to_playing(&mut self) {
         if let Some(i) = self.playing_index {
             self.library.sync_with_playing(i);
             self.active_panel = Panel::Right;
-            self.status = "→ к играющему треку".into();
+            self.set_status("→ к играющему треку".into());
         } else {
-            self.status = "Ничего не играет".into();
+            self.set_status("Ничего не играет".into());
         }
     }
 
-    /// g — в начало, G — в конец
     pub fn goto_start(&mut self) {
         match self.active_panel {
-            Panel::Left => self.library.artist_selected = 0,
+            Panel::Left => {
+                self.library.artist_selected = 0;
+                self.library.left_state.select(Some(0));
+            }
             Panel::Right => self.library.right_goto_start(),
         }
     }
@@ -184,6 +678,9 @@ impl App {
             Panel::Left => {
                 if !self.library.artists.is_empty() {
                     self.library.artist_selected = self.library.artists.len() - 1;
+                    self.library
+                        .left_state
+                        .select(Some(self.library.artist_selected));
                 }
             }
             Panel::Right => self.library.right_goto_end(),
@@ -196,12 +693,12 @@ impl App {
         let Some(track) = self.library.track(index_in_library).cloned() else {
             return;
         };
-        match self.player.play(&track.path) {
+        match self.player.play(&track.path, None) {
             Ok(_) => {
-                self.status = format!("▶ {} — {}", track.artist, track.title);
                 self.playing_index = Some(index_in_library);
+                self.set_status(format!("{} — {}", track.artist, track.title));
             }
-            Err(e) => self.status = format!("Ошибка: {}", e),
+            Err(e) => self.set_status(format!("Ошибка: {}", e)),
         }
     }
 
@@ -209,27 +706,25 @@ impl App {
         if let Some(idx) = self.library.right_track_index() {
             self.play_index(idx);
         } else {
-            self.status = "Выделен заголовок альбома".into();
+            self.set_status("Выделен заголовок группы".into());
         }
     }
 
     pub fn stop(&mut self) {
         self.player.stop();
         self.playing_index = None;
-        self.status = "Остановлено".into();
+        self.set_status("Остановлено".into());
     }
 
     pub fn toggle_pause(&mut self) {
         self.player.toggle_pause();
     }
 
-    /// Автопереход с учётом repeat и shuffle
     pub fn maybe_advance(&mut self) {
         if self.playing_index.is_none() || !self.player.is_finished() {
             return;
         }
 
-        // Repeat One — играем тот же трек
         if self.repeat == RepeatMode::One {
             if let Some(i) = self.playing_index {
                 self.play_index(i);
@@ -243,7 +738,6 @@ impl App {
         }
 
         let next = if self.shuffle {
-            // Псевдослучайный выбор без rand-крейта
             let seed = std::time::SystemTime::now()
                 .duration_since(std::time::UNIX_EPOCH)
                 .map(|d| d.as_nanos() as usize)
@@ -256,8 +750,7 @@ impl App {
                     if self.repeat == RepeatMode::All {
                         0
                     } else {
-                        // Off — останавливаемся
-                        self.status = "Конец плейлиста".into();
+                        self.set_status("Конец плейлиста".into());
                         self.playing_index = None;
                         return;
                     }
@@ -275,37 +768,39 @@ impl App {
             RepeatMode::All => RepeatMode::One,
             RepeatMode::One => RepeatMode::Off,
         };
-        self.status = match self.repeat {
-            RepeatMode::Off => "Repeat: off".into(),
-            RepeatMode::All => "Repeat: all".into(),
-            RepeatMode::One => "Repeat: one".into(),
+        let msg = match self.repeat {
+            RepeatMode::Off => "Repeat: off".to_string(),
+            RepeatMode::All => "Repeat: all".to_string(),
+            RepeatMode::One => "Repeat: one".to_string(),
         };
+        self.set_status(msg);
     }
 
     pub fn toggle_shuffle(&mut self) {
         self.shuffle = !self.shuffle;
-        self.status = if self.shuffle {
-            "Shuffle: on".into()
+        let msg = if self.shuffle {
+            "Shuffle: on".to_string()
         } else {
-            "Shuffle: off".into()
+            "Shuffle: off".to_string()
         };
+        self.set_status(msg);
     }
 
-    // ── Громкость, перемотка ───────────────────────────────────
-
     pub fn volume_up(&mut self) {
         self.player.change_volume(0.05);
-        self.status = format!("Громкость: {}%", (self.player.volume() * 100.0) as u32);
+        let msg = format!("Громкость: {}%", (self.player.volume() * 100.0) as u32);
+        self.set_status(msg);
     }
 
     pub fn volume_down(&mut self) {
         self.player.change_volume(-0.05);
-        self.status = format!("Громкость: {}%", (self.player.volume() * 100.0) as u32);
+        let msg = format!("Громкость: {}%", (self.player.volume() * 100.0) as u32);
+        self.set_status(msg);
     }
 
     pub fn seek(&mut self, delta_secs: i64) {
         if self.playing_index.is_none() {
-            self.status = "Ничего не воспроизводится".into();
+            self.set_status("Ничего не воспроизводится".into());
             return;
         }
         let total = self
@@ -317,22 +812,22 @@ impl App {
         match self.player.seek_by(delta_secs, total) {
             Ok(new_pos) => {
                 let sign = if delta_secs >= 0 { "+" } else { "" };
-                self.status = format!(
+                let msg = format!(
                     "Перемотка {}{}с → {:02}:{:02}",
                     sign,
                     delta_secs,
                     new_pos.as_secs() / 60,
                     new_pos.as_secs() % 60,
                 );
+                self.set_status(msg);
             }
-            Err(_) => self.status = "Перемотка недоступна".into(),
+            Err(_) => self.set_status("Перемотка недоступна".into()),
         }
     }
 
-    /// Перемотка по цифрам 1–9 (10%..90%)
     pub fn seek_percent(&mut self, percent: u8) {
         if self.playing_index.is_none() {
-            self.status = "Ничего не воспроизводится".into();
+            self.set_status("Ничего не воспроизводится".into());
             return;
         }
         let total = match self
@@ -342,21 +837,22 @@ impl App {
         {
             Some(d) if !d.is_zero() => d,
             _ => {
-                self.status = "Длительность неизвестна".into();
+                self.set_status("Длительность неизвестна".into());
                 return;
             }
         };
         let target = total.mul_f32(percent as f32 / 100.0);
         match self.player.seek_to(target) {
             Ok(_) => {
-                self.status = format!(
+                let msg = format!(
                     "→ {}% ({:02}:{:02})",
                     percent,
                     target.as_secs() / 60,
                     target.as_secs() % 60,
                 );
+                self.set_status(msg);
             }
-            Err(_) => self.status = "Перемотка недоступна".into(),
+            Err(_) => self.set_status("Перемотка недоступна".into()),
         }
     }
 
@@ -369,7 +865,8 @@ impl App {
 
     pub fn toggle_sort(&mut self) {
         let new_mode = match self.library.sort_mode {
-            SortMode::ByArtist => SortMode::ByFilename,
+            SortMode::ByArtist => SortMode::ByAlbum,
+            SortMode::ByAlbum => SortMode::ByFilename,
             SortMode::ByFilename => SortMode::ByArtist,
         };
 
@@ -378,8 +875,15 @@ impl App {
             .and_then(|i| self.library.track(i))
             .map(|t| t.path.clone());
 
+        let filtered: Vec<Track> = self
+            .raw_tracks
+            .iter()
+            .filter(|t| !self.deleted_paths.contains(&t.path))
+            .cloned()
+            .collect();
+
         self.library = Library::build_with_filter(
-            self.raw_tracks.clone(),
+            filtered,
             new_mode,
             self.search_buffer.clone(),
         );
@@ -391,9 +895,31 @@ impl App {
             self.library.sync_with_playing(i);
         }
 
-        self.status = match new_mode {
-            SortMode::ByArtist => "Сортировка: по артисту/альбому".into(),
-            SortMode::ByFilename => "Сортировка: по имени файла".into(),
+        let msg = match new_mode {
+            SortMode::ByArtist => "Сортировка: по артисту/альбому".to_string(),
+            SortMode::ByAlbum => "Сортировка: по альбому/артисту".to_string(),
+            SortMode::ByFilename => "Сортировка: по имени файла".to_string(),
         };
+        self.set_status(msg);
     }
+
+    // ── Геттеры для UI ─────────────────────────────────────────
+
+    pub fn sources(&self) -> &[String] {
+        &self.sources
+    }
+}
+
+fn expand_tilde(path: &str) -> String {
+    if let Some(rest) = path.strip_prefix("~/") {
+        if let Some(home) = dirs::home_dir() {
+            return home.join(rest).to_string_lossy().to_string();
+        }
+    }
+    if path == "~" {
+        if let Some(home) = dirs::home_dir() {
+            return home.to_string_lossy().to_string();
+        }
+    }
+    path.to_string()
 }

src/audio.rs

@@ -124,7 +124,6 @@ where
     fn total_duration(&self) -> Option<Duration> {
         self.inner.total_duration()
     }
-    // ВАЖНО: пробрасываем try_seek, иначе Sink::try_seek вернёт NotSupported
     fn try_seek(&mut self, pos: Duration) -> Result<(), rodio::source::SeekError> {
         self.inner.try_seek(pos)
     }
@@ -150,17 +149,31 @@ impl AudioPlayer {
         })
     }
 
-    pub fn play(&mut self, path: &PathBuf) -> Result<(), Box<dyn std::error::Error>> {
+    /// Запускает трек, опционально перематывая в `start_pos` ДО начала воспроизведения.
+    /// Перемотка делается на декодере — это предотвращает щелчок на старте.
+    pub fn play(
+        &mut self,
+        path: &PathBuf,
+        start_pos: Option<Duration>,
+    ) -> Result<(), Box<dyn std::error::Error>> {
         self.sink.stop();
         self.paused_pos = None;
+
         let file = File::open(path)?;
-        // Decoder::try_from автоматически настраивает seekable и byte_len[citation:1][citation:19]
-        let decoder = Decoder::try_from(file)?;
+        let mut decoder = Decoder::try_from(file)?;
+
+        if let Some(pos) = start_pos {
+            if !pos.is_zero() {
+                let _ = decoder.try_seek(pos);
+            }
+        }
+
         let tapped = TapSource {
             inner: decoder,
             bus: self.spectrum.clone(),
         };
         self.sink.append(tapped);
+        // ВАЖНО: явно снимаем паузу — sink.stop() не сбрасывает состояние pause.
         self.sink.play();
         Ok(())
     }

src/library.rs

@@ -1,14 +1,20 @@
+use ratatui::widgets::ListState;
+use serde::{Deserialize, Serialize};
+
 use crate::track::Track;
 
 #[derive(Clone)]
 pub enum RightRow {
+    /// Заголовок группы: в режиме ByArtist - название альбома,
+    /// в режиме ByAlbum - имя исполнителя.
     AlbumHeader { name: String },
     Track { index_in_library: usize },
 }
 
-#[derive(Clone, Copy, PartialEq)]
+#[derive(Clone, Copy, PartialEq, Serialize, Deserialize)]
 pub enum SortMode {
     ByArtist,
+    ByAlbum,
     ByFilename,
 }
 
@@ -23,8 +29,9 @@ pub struct Library {
     pub artist_selected: usize,
     pub right_selected: usize,
     pub sort_mode: SortMode,
-    /// Активный фильтр поиска (пусто — без фильтра)
     pub filter: String,
+    pub left_state: ListState,
+    pub right_state: ListState,
 }
 
 impl Library {
@@ -37,7 +44,6 @@ impl Library {
         mode: SortMode,
         filter: String,
     ) -> Self {
-        // Применяем фильтр
         if !filter.is_empty() {
             let f = filter.to_lowercase();
             tracks.retain(|t| {
@@ -48,87 +54,165 @@ impl Library {
         }
 
         match mode {
-            SortMode::ByArtist => {
-                use std::collections::BTreeMap;
+            SortMode::ByArtist => Self::build_by_artist(tracks, mode, filter),
+            SortMode::ByAlbum => Self::build_by_album(tracks, mode, filter),
+            SortMode::ByFilename => Self::build_by_filename(tracks, mode, filter),
+        }
+    }
 
-                let mut map: BTreeMap<String, BTreeMap<String, Vec<Track>>> = BTreeMap::new();
-                for t in tracks.drain(..) {
-                    map.entry(t.artist.clone())
-                        .or_default()
-                        .entry(t.album.clone())
-                        .or_default()
-                        .push(t);
-                }
+    fn build_by_artist(
+        mut tracks: Vec<Track>,
+        mode: SortMode,
+        filter: String,
+    ) -> Self {
+        use std::collections::BTreeMap;
 
-                let mut all_tracks = Vec::new();
-                let mut artists = Vec::new();
+        let mut map: BTreeMap<String, BTreeMap<String, Vec<Track>>> = BTreeMap::new();
+        for t in tracks.drain(..) {
+            map.entry(t.artist.clone())
+                .or_default()
+                .entry(t.album.clone())
+                .or_default()
+                .push(t);
+        }
 
-                for (artist_name, albums_map) in map {
-                    let mut rows = Vec::new();
+        let mut all_tracks = Vec::new();
+        let mut artists = Vec::new();
 
-                    for (album_name, mut album_tracks) in albums_map {
-                        album_tracks.sort_by(|a, b| {
-                            a.track_number
-                                .unwrap_or(u32::MAX)
-                                .cmp(&b.track_number.unwrap_or(u32::MAX))
-                                .then(a.title.cmp(&b.title))
-                        });
+        for (artist_name, albums_map) in map {
+            let mut rows = Vec::new();
 
-                        rows.push(RightRow::AlbumHeader { name: album_name });
-
-                        for t in album_tracks {
-                            let idx = all_tracks.len();
-                            all_tracks.push(t);
-                            rows.push(RightRow::Track {
-                                index_in_library: idx,
-                            });
-                        }
-                    }
-
-                    artists.push(ArtistView {
-                        name: artist_name,
-                        rows,
-                    });
-                }
-
-                Library {
-                    all_tracks,
-                    artists,
-                    artist_selected: 0,
-                    right_selected: 0,
-                    sort_mode: mode,
-                    filter,
-                }
-            }
-
-            SortMode::ByFilename => {
-                tracks.sort_by(|a, b| a.path.cmp(&b.path));
-                let all_tracks = tracks;
-
-                let mut rows = Vec::new();
-                rows.push(RightRow::AlbumHeader {
-                    name: "Все файлы".into(),
+            for (album_name, mut album_tracks) in albums_map {
+                album_tracks.sort_by(|a, b| {
+                    a.track_number
+                        .unwrap_or(u32::MAX)
+                        .cmp(&b.track_number.unwrap_or(u32::MAX))
+                        .then(a.title.cmp(&b.title))
                 });
-                for i in 0..all_tracks.len() {
+
+                rows.push(RightRow::AlbumHeader { name: album_name });
+
+                for t in album_tracks {
+                    let idx = all_tracks.len();
+                    all_tracks.push(t);
                     rows.push(RightRow::Track {
-                        index_in_library: i,
+                        index_in_library: idx,
                     });
                 }
+            }
 
-                let artists = vec![ArtistView {
-                    name: "Все файлы".into(),
-                    rows,
-                }];
+            artists.push(ArtistView {
+                name: artist_name,
+                rows,
+            });
+        }
 
-                Library {
-                    all_tracks,
-                    artists,
-                    artist_selected: 0,
-                    right_selected: 0,
-                    sort_mode: mode,
-                    filter,
+        Self::finalize(all_tracks, artists, mode, filter)
+    }
+
+    fn build_by_album(
+        mut tracks: Vec<Track>,
+        mode: SortMode,
+        filter: String,
+    ) -> Self {
+        use std::collections::BTreeMap;
+
+        // Album -> Artist -> Vec<Track>
+        let mut map: BTreeMap<String, BTreeMap<String, Vec<Track>>> = BTreeMap::new();
+        for t in tracks.drain(..) {
+            map.entry(t.album.clone())
+                .or_default()
+                .entry(t.artist.clone())
+                .or_default()
+                .push(t);
+        }
+
+        let mut all_tracks = Vec::new();
+        let mut albums = Vec::new();
+
+        for (album_name, artists_map) in map {
+            let mut rows = Vec::new();
+
+            for (artist_name, mut artist_tracks) in artists_map {
+                artist_tracks.sort_by(|a, b| {
+                    a.track_number
+                        .unwrap_or(u32::MAX)
+                        .cmp(&b.track_number.unwrap_or(u32::MAX))
+                        .then(a.title.cmp(&b.title))
+                });
+
+                // Заголовок группы = имя исполнителя
+                rows.push(RightRow::AlbumHeader { name: artist_name });
+
+                for t in artist_tracks {
+                    let idx = all_tracks.len();
+                    all_tracks.push(t);
+                    rows.push(RightRow::Track {
+                        index_in_library: idx,
+                    });
                 }
             }
+
+            albums.push(ArtistView {
+                name: album_name,
+                rows,
+            });
+        }
+
+        Self::finalize(all_tracks, albums, mode, filter)
+    }
+
+    fn build_by_filename(
+        mut tracks: Vec<Track>,
+        mode: SortMode,
+        filter: String,
+    ) -> Self {
+        tracks.sort_by(|a, b| a.path.cmp(&b.path));
+        let all_tracks = tracks;
+
+        let mut rows = Vec::new();
+        rows.push(RightRow::AlbumHeader {
+            name: "Все файлы".into(),
+        });
+        for i in 0..all_tracks.len() {
+            rows.push(RightRow::Track {
+                index_in_library: i,
+            });
+        }
+
+        let groups = vec![ArtistView {
+            name: "Все файлы".into(),
+            rows,
+        }];
+
+        Self::finalize(all_tracks, groups, mode, filter)
+    }
+
+    /// Общая инициализация ListState и позиций курсора.
+    fn finalize(
+        all_tracks: Vec<Track>,
+        groups: Vec<ArtistView>,
+        mode: SortMode,
+        filter: String,
+    ) -> Self {
+        let right_selected = first_track_row_in(groups.first());
+
+        let mut left_state = ListState::default();
+        let mut right_state = ListState::default();
+        if !groups.is_empty() {
+            left_state.select(Some(0));
+        }
+        right_state.select(Some(right_selected));
+
+        Library {
+            all_tracks,
+            artists: groups,
+            artist_selected: 0,
+            right_selected,
+            sort_mode: mode,
+            filter,
+            left_state,
+            right_state,
         }
     }
 
@@ -163,6 +247,11 @@ impl Library {
         }
         self.artist_selected = new as usize;
         self.right_selected = self.first_track_row();
+
+        self.right_state = ListState::default();
+
+        self.left_state.select(Some(self.artist_selected));
+        self.right_state.select(Some(self.right_selected));
     }
 
     pub fn right_move(&mut self, delta: isize) {
@@ -188,9 +277,11 @@ impl Library {
             new_pos = len - 1;
         } else if new_pos >= len {
             new_pos = 0;
+			self.right_state = ListState::default();
         }
 
         self.right_selected = track_rows[new_pos as usize];
+        self.right_state.select(Some(self.right_selected));
     }
 
     pub fn right_goto_start(&mut self) {
@@ -215,8 +306,20 @@ impl Library {
             }) {
                 self.artist_selected = ai;
                 self.right_selected = pos;
+                self.left_state.select(Some(ai));
+                self.right_state.select(Some(pos));
                 return;
             }
         }
     }
+}
+
+fn first_track_row_in(group: Option<&ArtistView>) -> usize {
+    group
+        .and_then(|a| {
+            a.rows
+                .iter()
+                .position(|r| matches!(r, RightRow::Track { .. }))
+        })
+        .unwrap_or(0)
 }

src/main.rs

@@ -7,7 +7,7 @@ mod ui;
 
 use std::time::Duration;
 
-use crossterm::event::{self, Event, KeyCode, KeyEventKind};
+use crossterm::event::{self, Event, KeyCode, KeyEvent, KeyEventKind, KeyModifiers};
 
 use crate::app::{App, InputMode};
 
@@ -26,7 +26,13 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut app = App::new(&music_dir)?;
 
     loop {
+        if app.request_quit {
+            app.on_exit();
+            break;
+        }
+
         app.maybe_advance();
+        app.tick_status();
         app.player.spectrum.recompute();
         terminal.draw(|f| ui::draw(f, &mut app))?;
 
@@ -35,7 +41,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
                 if key.kind == KeyEventKind::Release {
                     continue;
                 }
-                if handle_key(key.code, &mut app) {
+                if handle_key(key, &mut app) {
                     app.on_exit();
                     break;
                 }
@@ -47,10 +53,66 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     Ok(())
 }
 
-fn handle_key(code: KeyCode, app: &mut App) -> bool {
-    // Режим поиска
+fn handle_key(key: KeyEvent, app: &mut App) -> bool {
+    let ctrl = key.modifiers.contains(KeyModifiers::CONTROL);
+
+    if key.code == KeyCode::F(1) {
+        app.toggle_help();
+        return false;
+    }
+
+    if app.show_help {
+        if key.code == KeyCode::Esc {
+            app.toggle_help();
+        }
+        return false;
+    }
+
+    if app.show_libs {
+        if key.code == KeyCode::Esc {
+            app.show_libs = false;
+        }
+        return false;
+    }
+
+    if app.input_mode == InputMode::Command {
+        match key.code {
+            KeyCode::Esc => app.cancel_command(),
+            KeyCode::Enter => app.commit_command(),
+            KeyCode::Backspace => app.command_pop(),
+            KeyCode::Char(c) => app.command_push(c),
+            _ => {}
+        }
+        return false;
+    }
+
+    if ctrl {
+        match key.code {
+            KeyCode::Right => {
+                app.next_track();
+                return false;
+            }
+            KeyCode::Left => {
+                app.prev_track();
+                return false;
+            }
+            KeyCode::Char(c) => match c.to_ascii_lowercase() {
+                'd' => {
+                    app.next_track();
+                    return false;
+                }
+                'a' => {
+                    app.prev_track();
+                    return false;
+                }
+                _ => {}
+            },
+            _ => {}
+        }
+    }
+
     if app.input_mode == InputMode::Search {
-        match code {
+        match key.code {
             KeyCode::Esc => app.cancel_search(),
             KeyCode::Enter => app.commit_search(),
             KeyCode::Backspace => app.search_pop(),
@@ -60,8 +122,16 @@ fn handle_key(code: KeyCode, app: &mut App) -> bool {
         return false;
     }
 
-    // Обычный режим
-    match code {
+    if key.code == KeyCode::Delete {
+        app.delete_selected();
+        return false;
+    }
+
+    match key.code {
+        KeyCode::Char(':') => {
+            app.start_command();
+            return false;
+        }
         KeyCode::Char('+') | KeyCode::Char('=') => {
             app.volume_up();
             return false;
@@ -101,7 +171,7 @@ fn handle_key(code: KeyCode, app: &mut App) -> bool {
         _ => {}
     }
 
-    if let KeyCode::Char(c) = code {
+    if let KeyCode::Char(c) = key.code {
         match c {
             '1'..='9' => {
                 let pct = (c as u8 - b'0') * 10;
@@ -117,7 +187,6 @@ fn handle_key(code: KeyCode, app: &mut App) -> bool {
                 't' => app.toggle_sort(),
                 'f' => app.jump_to_playing(),
                 'g' => {
-                    // 'g' (строчная) — в начало, 'G' (заглавная) — в конец
                     if c == 'G' {
                         app.goto_end();
                     } else {

src/state.rs

@@ -3,13 +3,21 @@ use std::path::PathBuf;
 
 use serde::{Deserialize, Serialize};
 
+use crate::library::SortMode;
+use crate::track::Track;
+
 #[derive(Serialize, Deserialize, Default)]
 pub struct SavedState {
     pub last_path: Option<String>,
     pub volume: Option<f32>,
-    pub sort_by_filename: Option<bool>,
+    pub sort_mode: Option<SortMode>,
     pub repeat: Option<RepeatMode>,
     pub shuffle: Option<bool>,
+    pub last_playing_path: Option<String>,
+    pub last_playing_pos_secs: Option<u64>,
+    /// Единый список источников: папки и плейлисты.
+    #[serde(default)]
+    pub sources: Vec<String>,
 }
 
 #[derive(Serialize, Deserialize, Clone, Copy, PartialEq, Debug, Default)]
@@ -20,10 +28,14 @@ pub enum RepeatMode {
     One,
 }
 
-fn config_path() -> Option<PathBuf> {
+pub fn config_path() -> Option<PathBuf> {
     dirs::config_dir().map(|p| p.join("rumus").join("state.toml"))
 }
 
+fn cache_path() -> Option<PathBuf> {
+    dirs::data_dir().map(|p| p.join("rumus").join("library.bin"))
+}
+
 pub fn load() -> SavedState {
     let Some(path) = config_path() else {
         return SavedState::default();
@@ -44,4 +56,22 @@ pub fn save(state: &SavedState) {
     if let Ok(text) = toml::to_string_pretty(state) {
         let _ = fs::write(path, text);
     }
+}
+
+pub fn load_cache() -> Option<Vec<Track>> {
+    let path = cache_path()?;
+    let bytes = fs::read(&path).ok()?;
+    bincode::deserialize(&bytes).ok()
+}
+
+pub fn save_cache(tracks: &[Track]) {
+    let Some(path) = cache_path() else {
+        return;
+    };
+    if let Some(parent) = path.parent() {
+        let _ = fs::create_dir_all(parent);
+    }
+    if let Ok(bytes) = bincode::serialize(&tracks.to_vec()) {
+        let _ = fs::write(path, bytes);
+    }
 }

src/track.rs

@@ -1,10 +1,11 @@
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use std::time::Duration;
 
 use lofty::file::{AudioFile, TaggedFileExt};
 use lofty::tag::Accessor;
+use serde::{Deserialize, Serialize};
 
-#[derive(Clone)]
+#[derive(Clone, Serialize, Deserialize)]
 pub struct Track {
     pub path: PathBuf,
     pub title: String,
@@ -69,7 +70,6 @@ impl Track {
     }
 }
 
-/// Собирает все аудиофайлы в директории (без сортировки)
 pub fn scan_dir(dir: &str) -> Vec<Track> {
     use walkdir::WalkDir;
     let mut tracks = Vec::new();
@@ -91,4 +91,112 @@ pub fn scan_dir(dir: &str) -> Vec<Track> {
         }
     }
     tracks
+}
+
+/// Универсальный сканер источника: папка или файл плейлиста.
+pub fn scan_source(path: &Path) -> Vec<Track> {
+    if path.is_dir() {
+        scan_dir(&path.to_string_lossy())
+    } else if path.is_file() {
+        read_playlist(path)
+            .into_iter()
+            .map(|p| Track::from_path(&p))
+            .collect()
+    } else {
+        Vec::new()
+    }
+}
+
+// ── Плейлисты (M3U / M3U8 / PLS) ───────────────────────────────
+
+pub fn read_playlist(path: &Path) -> Vec<PathBuf> {
+    let bytes = match std::fs::read(path) {
+        Ok(b) => b,
+        Err(_) => return Vec::new(),
+    };
+
+    let content = match std::str::from_utf8(&bytes) {
+        Ok(s) => s.to_string(),
+        Err(_) => {
+            let (decoded, _, _) = encoding_rs::WINDOWS_1251.decode(&bytes);
+            decoded.into_owned()
+        }
+    };
+
+    let content = content.trim_start_matches('\u{FEFF}');
+
+    let parent = path.parent().unwrap_or(Path::new(""));
+    let is_pls = path
+        .extension()
+        .and_then(|e| e.to_str())
+        .map(|s| s.eq_ignore_ascii_case("pls"))
+        .unwrap_or(false);
+
+    if is_pls {
+        parse_pls(content, parent)
+    } else {
+        parse_m3u(content, parent)
+    }
+}
+
+fn parse_m3u(content: &str, parent: &Path) -> Vec<PathBuf> {
+    content
+        .lines()
+        .map(|l| l.trim())
+        .filter(|l| !l.is_empty() && !l.starts_with('#'))
+        .map(|l| resolve_path(l, parent))
+        .filter(|p| p.exists())
+        .collect()
+}
+
+fn parse_pls(content: &str, parent: &Path) -> Vec<PathBuf> {
+    let mut files = Vec::new();
+    for line in content.lines() {
+        let line = line.trim();
+        if line.to_lowercase().starts_with("file") {
+            if let Some((_, val)) = line.split_once('=') {
+                let p = resolve_path(val.trim(), parent);
+                if p.exists() {
+                    files.push(p);
+                }
+            }
+        }
+    }
+    files
+}
+
+fn resolve_path(s: &str, parent: &Path) -> PathBuf {
+    let p = PathBuf::from(s);
+    if p.is_relative() {
+        parent.join(p)
+    } else {
+        p
+    }
+}
+
+pub fn save_playlist_m3u(path: &Path, tracks: &[Track]) -> std::io::Result<()> {
+    let mut out = String::from("#EXTM3U\n");
+    for t in tracks {
+        let dur = t.duration.as_secs();
+        out.push_str(&format!(
+            "#EXTINF:{},{} - {}\n{}\n",
+            dur,
+            t.artist,
+            t.title,
+            t.path.display()
+        ));
+    }
+    std::fs::write(path, out)
+}
+
+pub fn save_playlist_pls(path: &Path, tracks: &[Track]) -> std::io::Result<()> {
+    let mut out = String::from("[playlist]\n");
+    for (i, t) in tracks.iter().enumerate() {
+        let num = i + 1;
+        out.push_str(&format!("File{}={}\n", num, t.path.display()));
+        out.push_str(&format!("Title{}={} - {}\n", num, t.artist, t.title));
+        out.push_str(&format!("Length{}={}\n", num, t.duration.as_secs()));
+    }
+    out.push_str(&format!("NumberOfEntries={}\nVersion=2\n", tracks.len()));
+    std::fs::write(path, out)
 }

src/ui.rs

@@ -1,6 +1,6 @@
 use ratatui::prelude::*;
 use ratatui::widgets::{
-    Bar, BarChart, BarGroup, Block, Borders, Gauge, List, ListItem, ListState, Paragraph,
+    Bar, BarChart, BarGroup, Block, Borders, Clear, List, ListItem, Paragraph, Wrap,
 };
 
 use crate::app::{App, InputMode, Panel};
@@ -12,9 +12,7 @@ pub fn draw(f: &mut Frame, app: &mut App) {
         .direction(Direction::Vertical)
         .constraints([
             Constraint::Min(1),
-            Constraint::Length(6), // эквалайзер
-            Constraint::Length(3), // прогресс
-            Constraint::Length(3), // статус + vol
+            Constraint::Length(3),
         ])
         .split(f.area());
 
@@ -23,14 +21,30 @@ pub fn draw(f: &mut Frame, app: &mut App) {
         .constraints([Constraint::Percentage(30), Constraint::Percentage(70)])
         .split(chunks[0]);
 
-    draw_left_panel(f, app, top[0]);
+    let left_col = Layout::default()
+        .direction(Direction::Vertical)
+        .constraints([
+            Constraint::Min(1),
+            Constraint::Length(8),
+        ])
+        .split(top[0]);
+
+    draw_left_panel(f, app, left_col[0]);
+    draw_equalizer(f, app, left_col[1]);
     draw_right_panel(f, app, top[1]);
-    draw_equalizer(f, app, chunks[1]);
-    draw_progress(f, app, chunks[2]);
-    draw_status(f, app, chunks[3]);
+    draw_status(f, app, chunks[1]);
+
+    if app.show_help {
+        draw_help(f, f.area());
+    }
+    if app.show_libs {
+        draw_dirs(f, app, f.area());
+    }
 }
 
-fn draw_left_panel(f: &mut Frame, app: &App, area: Rect) {
+fn draw_left_panel(f: &mut Frame, app: &mut App, area: Rect) {
+    f.render_widget(Clear, area);
+
     let items: Vec<ListItem> = app
         .library
         .artists
@@ -44,17 +58,27 @@ fn draw_left_panel(f: &mut Frame, app: &App, area: Rect) {
         Style::default().add_modifier(Modifier::DIM)
     };
 
-    let mut list_state = ListState::default();
-    if !app.library.artists.is_empty() {
-        list_state.select(Some(app.library.artist_selected));
-    }
+    let sel = if app.library.artists.is_empty() {
+        None
+    } else {
+        Some(app.library.artist_selected)
+    };
+    app.library.left_state.select(sel);
+
+    let title_text = match app.library.sort_mode {
+        SortMode::ByArtist => " Исполнители ",
+        SortMode::ByAlbum => " Альбомы ",
+        SortMode::ByFilename => " Источник ",
+    };
+    let album_color = Color::Rgb(100, 149, 237);
+    let title = Span::styled(title_text, Style::default().fg(album_color));
 
     let list = List::new(items)
-        .block(Block::default().borders(Borders::ALL).title(" Исполнители "))
+        .block(Block::default().borders(Borders::ALL).title(title))
         .highlight_style(highlight)
         .highlight_symbol("> ");
 
-    f.render_stateful_widget(list, area, &mut list_state);
+    f.render_stateful_widget(list, area, &mut app.library.left_state);
 }
 
 fn fmt_dur(d: std::time::Duration) -> String {
@@ -65,7 +89,9 @@ fn fmt_dur(d: std::time::Duration) -> String {
     }
 }
 
-fn draw_right_panel(f: &mut Frame, app: &App, area: Rect) {
+fn draw_right_panel(f: &mut Frame, app: &mut App, area: Rect) {
+    f.render_widget(Clear, area);
+
     let rows = app.library.current_right_rows();
 
     let items: Vec<ListItem> = rows
@@ -89,14 +115,14 @@ fn draw_right_panel(f: &mut Frame, app: &App, area: Rect) {
 
                 let inner_width = area.width.saturating_sub(6) as usize;
                 let pad = inner_width
-                    .saturating_sub(name.len() + total_str.len() + 3)
+                    .saturating_sub(name.len() + total_str.len() + 4)
                     .max(1);
-                let line = format!("{} {} {}", name, "─".repeat(pad), total_str);
+                let line = format!("{} ] {} {}", name, "─".repeat(pad), total_str);
 
                 let album_color = Color::Rgb(100, 149, 237);
 
                 ListItem::new(Line::from(vec![
-                    Span::styled("▶ ", Style::default().fg(album_color)),
+                    Span::styled("[ ", Style::default().fg(album_color)),
                     Span::styled(
                         line,
                         Style::default()
@@ -126,29 +152,62 @@ fn draw_right_panel(f: &mut Frame, app: &App, area: Rect) {
                     Style::default()
                 };
 
+                let left = format!("  {}{}{}", marker, num, title);
+                let inner_width = area.width.saturating_sub(4) as usize;
+
+                let left_len = left.chars().count();
+                let dur_len = dur.chars().count();
+                let pad = inner_width
+                    .saturating_sub(left_len + dur_len)
+                    .max(1);
+
                 ListItem::new(Line::from(vec![
-                    Span::raw("  "),
-                    Span::raw(marker),
-                    Span::styled(format!("{}{}", num, title), style),
-                    Span::raw("  "),
-                    Span::styled(dur, Style::default().fg(Color::DarkGray)),
+                    Span::styled(left, style),
+                    Span::raw(" ".repeat(pad)),
+                    Span::styled(dur, style),
                 ]))
             }
         })
         .collect();
 
-    let title = match app.library.sort_mode {
+    let selected_name = app
+        .library
+        .artists
+        .get(app.library.artist_selected)
+        .map(|a| a.name.as_str())
+        .unwrap_or("—");
+
+    let title_text = match app.library.sort_mode {
         SortMode::ByArtist => {
-            let artist_name = app
-                .library
-                .artists
-                .get(app.library.artist_selected)
-                .map(|a| a.name.as_str())
-                .unwrap_or("—");
-            format!(" Альбомы и треки — {} ", artist_name)
+            if app.library.filter.is_empty() {
+                format!(" Альбомы и треки - {} ", selected_name)
+            } else {
+                format!(
+                    " Альбомы и треки - {} [{}] ",
+                    selected_name, app.library.filter
+                )
+            }
+        }
+        SortMode::ByAlbum => {
+            if app.library.filter.is_empty() {
+                format!(" Исполнители и треки - {} ", selected_name)
+            } else {
+                format!(
+                    " Исполнители и треки - {} [{}] ",
+                    selected_name, app.library.filter
+                )
+            }
+        }
+        SortMode::ByFilename => {
+            if app.library.filter.is_empty() {
+                " Альбомы и треки ".into()
+            } else {
+                format!(" Альбомы и треки [{}] ", app.library.filter)
+            }
         }
-        SortMode::ByFilename => " Альбомы и треки ".into(),
     };
+    let album_color = Color::Rgb(100, 149, 237);
+    let title = Span::styled(title_text, Style::default().fg(album_color));
 
     let highlight = if app.active_panel == Panel::Right {
         Style::default().add_modifier(Modifier::REVERSED)
@@ -156,51 +215,50 @@ fn draw_right_panel(f: &mut Frame, app: &App, area: Rect) {
         Style::default().add_modifier(Modifier::DIM)
     };
 
-    let mut list_state = ListState::default();
-    if !rows.is_empty() {
-        list_state.select(Some(app.library.right_selected));
-    }
+    let sel = if rows.is_empty() {
+        None
+    } else {
+        Some(app.library.right_selected)
+    };
+    app.library.right_state.select(sel);
 
     let list = List::new(items)
         .block(Block::default().borders(Borders::ALL).title(title))
         .highlight_style(highlight)
         .highlight_symbol("> ");
 
-    f.render_stateful_widget(list, area, &mut list_state);
+    f.render_stateful_widget(list, area, &mut app.library.right_state);
 }
 
-/// Цветной эквалайзер: 32 столбика с градиентом от синего к красному
 fn draw_equalizer(f: &mut Frame, app: &App, area: Rect) {
+    let inner_width = area.width.saturating_sub(1) as usize;
+    if inner_width == 0 {
+        return;
+    }
+
+    let num_bars = (inner_width / 2).max(4);
+
     let bars_data = app.player.spectrum.bars();
-    let num_bars = 32;
+    let step = (bars_data.len() / num_bars).max(1);
 
     let mut display: Vec<f32> = Vec::with_capacity(num_bars);
     for i in 0..num_bars {
-        let a = bars_data[i * 2];
-        let b = bars_data[i * 2 + 1];
-        display.push((a + b) / 2.0);
+        let start = i * step;
+        let end = (start + step).min(bars_data.len());
+        if start >= bars_data.len() {
+            display.push(0.0);
+            continue;
+        }
+        let sum: f32 = bars_data[start..end].iter().sum();
+        display.push(sum / (end - start).max(1) as f32);
     }
 
     let bars: Vec<Bar> = display
         .iter()
-        .enumerate()
-        .map(|(i, &v)| {
-            let ratio = i as f64 / (num_bars - 1).max(1) as f64;
-            let color = if ratio < 0.2 {
-                Color::Rgb(0, 100, 255)
-            } else if ratio < 0.4 {
-                Color::Rgb(0, 200, 255)
-            } else if ratio < 0.6 {
-                Color::Rgb(0, 255, 100)
-            } else if ratio < 0.8 {
-                Color::Rgb(255, 200, 0)
-            } else {
-                Color::Rgb(255, 50, 50)
-            };
-
+        .map(|&v| {
             Bar::default()
                 .value((v * 100.0) as u64)
-                .style(Style::default().fg(color))
+                .style(Style::default().fg(Color::Rgb(100, 149, 237)))
         })
         .collect();
 
@@ -220,49 +278,53 @@ fn draw_equalizer(f: &mut Frame, app: &App, area: Rect) {
     f.render_widget(chart, area);
 }
 
-fn draw_progress(f: &mut Frame, app: &App, area: Rect) {
-    let (pos, total) = app.progress();
-    let ratio = if total.as_secs_f64() > 0.0 {
-        (pos.as_secs_f64() / total.as_secs_f64()).clamp(0.0, 1.0)
-    } else {
-        0.0
-    };
-
-    let gauge = Gauge::default()
-        .block(Block::default().borders(Borders::ALL).title(" Прогресс "))
-        .gauge_style(Style::default().fg(Color::Green))
-        .ratio(ratio)
-        .label(format!(
-            "{:02}:{:02} / {:02}:{:02}",
-            pos.as_secs() / 60,
-            pos.as_secs() % 60,
-            total.as_secs() / 60,
-            total.as_secs() % 60,
-        ));
-
-    f.render_widget(gauge, area);
-}
-
 fn draw_status(f: &mut Frame, app: &App, area: Rect) {
     let inner = Layout::default()
         .direction(Direction::Horizontal)
         .constraints([
             Constraint::Min(1),
+            Constraint::Length(18),
             Constraint::Length(16),
             Constraint::Length(12),
         ])
         .split(area);
 
-    let (status_text, status_title) = if app.input_mode == InputMode::Search {
-        (format!("> {}", app.search_buffer), " Поиск ")
-    } else {
-        (app.status.clone(), " Статус ")
+    let (status_text, status_title) = match app.input_mode {
+        InputMode::Search => (format!(">{}", app.search_buffer), " Поиск "),
+        InputMode::Command => (format!(":{}", app.command_buffer), " Команда "),
+        InputMode::Normal => {
+            let prefix = if app.player.is_paused() { "|| " } else { "   " };
+            (format!("{}{}", prefix, app.status), " Статус ")
+        }
     };
 
     let status = Paragraph::new(status_text)
-        .block(Block::default().borders(Borders::ALL).title(status_title));
+        .block(
+            Block::default()
+                .borders(Borders::ALL)
+                .title(status_title)
+                .title_style(Style::default().fg(Color::Rgb(100, 149, 237)))
+        );
     f.render_widget(status, inner[0]);
 
+    let (pos, total) = app.progress();
+    let time_text = format!(
+        "{:02}:{:02} / {:02}:{:02}",
+        pos.as_secs() / 60,
+        pos.as_secs() % 60,
+        total.as_secs() / 60,
+        total.as_secs() % 60,
+    );
+    let time = Paragraph::new(time_text)
+        .alignment(Alignment::Center)
+        .block(
+            Block::default()
+                .borders(Borders::ALL)
+                .title(" Время ")
+                .title_style(Style::default().fg(Color::Rgb(100, 149, 237)))
+        );
+    f.render_widget(time, inner[1]);
+
     let mode_str = match (app.repeat, app.shuffle) {
         (RepeatMode::Off, false) => "".to_string(),
         (RepeatMode::Off, true) => "SHUF".to_string(),
@@ -273,12 +335,157 @@ fn draw_status(f: &mut Frame, app: &App, area: Rect) {
     };
     let mode = Paragraph::new(mode_str)
         .alignment(Alignment::Center)
-        .block(Block::default().borders(Borders::ALL).title(" Mode "));
-    f.render_widget(mode, inner[1]);
+        .block(
+           Block::default()
+           .borders(Borders::ALL)
+           .title(" Режим ")
+           .title_style(Style::default().fg(Color::Rgb(100, 149, 237)))
+        );
+    f.render_widget(mode, inner[2]);
 
-    let vol_text = format!("vol: {}%", (app.player.volume() * 100.0) as u32);
+    let vol_text = format!("Vol: {}%", (app.player.volume() * 100.0) as u32);
     let vol = Paragraph::new(vol_text)
         .alignment(Alignment::Center)
-        .block(Block::default().borders(Borders::ALL).title(" Звук "));
-    f.render_widget(vol, inner[2]);
+        .block(
+           Block::default()
+           .borders(Borders::ALL)
+           .title(" Звук ")
+           .title_style(Style::default().fg(Color::Rgb(100, 149, 237)))
+        );
+    f.render_widget(vol, inner[3]);
+}
+
+fn draw_dirs(f: &mut Frame, app: &App, screen: Rect) {
+    let count = app.sources().len();
+
+    // Строки: заголовок (1) + пустая (1) + "Список" (1) + N + пустая (1) + подсказка (1)
+    let content_lines = 5 + count;
+    let desired_height = (content_lines + 2) as u16;
+
+    let width = 70u16.min(screen.width.saturating_sub(4));
+    let max_h = screen.height.saturating_sub(4);
+    let height = desired_height.min(max_h).max(5);
+
+    let x = (screen.width.saturating_sub(width)) / 2;
+    let y = (screen.height.saturating_sub(height)) / 2;
+    let area = Rect::new(x, y, width, height);
+
+    f.render_widget(Clear, area);
+
+    let title_color = Style::default().fg(Color::Rgb(100, 149, 237));
+    let header = Style::default()
+        .fg(Color::Yellow)
+        .add_modifier(Modifier::BOLD);
+    let dim = Style::default().fg(Color::DarkGray);
+
+    let mut lines = vec![
+        Line::from(Span::styled(
+            "  Источники библиотеки  ",
+            title_color.add_modifier(Modifier::BOLD),
+        )),
+        Line::from(""),
+        Line::from(Span::styled("  Список", header)),
+    ];
+
+    for (i, src) in app.sources().iter().enumerate() {
+        lines.push(Line::from(vec![
+            Span::styled(format!("  [{}] ", i), dim),
+            Span::raw(src.clone()),
+        ]));
+    }
+
+    lines.push(Line::from(""));
+    lines.push(Line::from(Span::styled(
+        "  :rm <N> — удалить, Esc — закрыть",
+        dim,
+    )));
+
+    let para = Paragraph::new(lines)
+        .block(
+            Block::default()
+                .borders(Borders::ALL)
+                .border_style(title_color)
+                .title(" Библиотека "),
+        )
+        .wrap(Wrap { trim: false });
+
+    f.render_widget(para, area);
+}
+
+fn draw_help(f: &mut Frame, screen: Rect) {
+    let width = 62u16.min(screen.width.saturating_sub(4));
+    let height = 44u16.min(screen.height.saturating_sub(4));
+
+    let x = (screen.width.saturating_sub(width)) / 2;
+    let y = (screen.height.saturating_sub(height)) / 2;
+    let area = Rect::new(x, y, width, height);
+
+    f.render_widget(Clear, area);
+
+    let header = Style::default()
+        .fg(Color::Yellow)
+        .add_modifier(Modifier::BOLD);
+    let title_color = Style::default().fg(Color::Rgb(100, 149, 237));
+
+    let help_text = vec![
+        Line::from(Span::styled(
+            "  Управление плеером  ",
+            title_color.add_modifier(Modifier::BOLD),
+        )),
+        Line::from(""),
+        Line::from(Span::styled("  Навигация", header)),
+        Line::from("  w / ↑          вверх по списку"),
+        Line::from("  s / ↓          вниз по списку"),
+        Line::from("  Tab            переключить панель"),
+        Line::from("  g / G          в начало / в конец списка"),
+        Line::from("  f              к играющему треку"),
+        Line::from(""),
+        Line::from(Span::styled("  Воспроизведение", header)),
+        Line::from("  Enter          играть выделенный трек"),
+        Line::from("  Space          пауза / продолжить"),
+        Line::from("  z              стоп"),
+        Line::from("  Ctrl+→ / Ctrl+d   следующий трек"),
+        Line::from("  Ctrl+← / Ctrl+a   предыдущий трек"),
+        Line::from("  r              repeat: off → all → one"),
+        Line::from("  x              shuffle вкл/выкл"),
+        Line::from(""),
+        Line::from(Span::styled("  Перемотка", header)),
+        Line::from("  a / ←          −5 секунд"),
+        Line::from("  d / →          +5 секунд"),
+        Line::from("  1..9           перейти к 10%..90% трека"),
+        Line::from(""),
+        Line::from(Span::styled("  Команды", header)),
+        Line::from("  :add <путь>    добавить в сессию"),
+        Line::from("  :load <путь>   заменить сессию"),
+        Line::from("  :reload        пересканировать всё"),
+        Line::from("  :save          сохранить библиотеку"),
+        Line::from("  :savepl <файл> экспорт в M3U/PLS"),
+        Line::from("  :libs          список источников"),
+        Line::from("  :rm <N>        удалить источник"),
+        Line::from("  :clear         очистить источники"),
+        Line::from("  :help          эта справка"),
+        Line::from("  :q             выход"),
+        Line::from(""),
+        Line::from(Span::styled("  Звук и прочее", header)),
+        Line::from("  + / -          громкость"),
+        Line::from("  /              поиск"),
+        Line::from("  Del            удалить из списка"),
+        Line::from("  t              сортировка: артист → альбом → файл"),
+        Line::from("  F1             эта справка"),
+        Line::from("  q / Esc        выход"),
+        Line::from(""),
+        Line::from(Span::styled(
+            "  F1 или Esc - закрыть  ",
+            Style::default().fg(Color::DarkGray),
+        )),
+    ];
+
+    let help = Paragraph::new(help_text).block(
+        Block::default()
+            .borders(Borders::ALL)
+            .border_style(title_color)
+            .title(" Помощь "),
+    );
+
+    f.render_widget(help, area);
 }