| 1 | use std::time::Duration; |
| 2 | |
| 3 | use crate::browser::FileBrowser; |
| 4 | use crate::connection::Connection; |
| 5 | use crate::list::ContentList; |
| 6 | use crate::ui::InputMode; |
| 7 | use mpd::{Client, Song}; |
| 8 | |
| 9 | // Application result type |
| 10 | pub type AppResult<T> = std::result::Result<T, Box<dyn std::error::Error>>; |
| 11 | |
| 12 | /// Application |
| 13 | #[derive(Debug)] |
| 14 | pub struct App { |
| 15 | pub running: bool, // Check if app is running |
| 16 | pub conn: Connection, // Connection |
| 17 | pub browser: FileBrowser, // Directory browser |
| 18 | pub queue_list: ContentList<Song>, // Stores the current playing queue |
| 19 | pub pl_list: ContentList<String>, // Stores list of playlists |
| 20 | pub selected_tab: SelectedTab, // Used to switch between tabs |
| 21 | |
| 22 | // Search |
| 23 | pub inputmode: InputMode, // Defines input mode, Normal or Search |
| 24 | pub search_input: String, // Stores the userinput to be searched |
| 25 | pub search_cursor_pos: usize, // Stores the cursor position for searching |
| 26 | pub pl_newname_input: String, // Stores the new name of the playlist |
| 27 | pub pl_cursor_pos: usize, // Stores the cursor position for renaming playlist |
| 28 | |
| 29 | // playlist variables |
| 30 | // used to show playlist popup |
| 31 | pub playlist_popup: bool, |
| 32 | pub append_list: ContentList<String>, |
| 33 | } |
| 34 | |
| 35 | #[derive(Debug, PartialEq, Clone)] |
| 36 | pub enum SelectedTab { |
| 37 | DirectoryBrowser, |
| 38 | Queue, |
| 39 | Playlists, |
| 40 | } |
| 41 | |
| 42 | impl App { |
| 43 | pub fn builder(addrs: &str) -> AppResult<Self> { |
| 44 | let mut conn = Connection::new(addrs).unwrap(); |
| 45 | let mut queue_list = ContentList::new(); |
| 46 | let mut pl_list = ContentList::new(); |
| 47 | |
| 48 | pl_list.list = Self::get_playlist(&mut conn.conn)?; |
| 49 | pl_list.list.sort(); |
| 50 | |
| 51 | let append_list = Self::get_append_list(&mut conn.conn)?; |
| 52 | Self::get_queue(&mut conn, &mut queue_list.list); |
| 53 | |
| 54 | let browser = FileBrowser::new(); |
| 55 | |
| 56 | Ok(Self { |
| 57 | running: true, |
| 58 | conn, |
| 59 | queue_list, |
| 60 | pl_list, |
| 61 | selected_tab: SelectedTab::Queue, |
| 62 | browser, |
| 63 | inputmode: InputMode::Normal, |
| 64 | search_input: String::new(), |
| 65 | pl_newname_input: String::new(), |
| 66 | search_cursor_pos: 0, |
| 67 | pl_cursor_pos: 0, |
| 68 | playlist_popup: false, |
| 69 | append_list, |
| 70 | }) |
| 71 | } |
| 72 | |
| 73 | pub fn tick(&mut self) { |
| 74 | self.conn.update_status(); |
| 75 | self.update_queue(); |
| 76 | } |
| 77 | |
| 78 | pub fn quit(&mut self) { |
| 79 | self.running = false; |
| 80 | } |
| 81 | |
| 82 | pub fn get_queue(conn: &mut Connection, vec: &mut Vec<Song>) { |
| 83 | conn.conn.queue().unwrap().into_iter().for_each(|x| { |
| 84 | vec.push(x); |
| 85 | }); |
| 86 | } |
| 87 | |
| 88 | // Rescan the queue into queue_list |
| 89 | pub fn update_queue(&mut self) { |
| 90 | self.queue_list.list.clear(); |
| 91 | Self::get_queue(&mut self.conn, &mut self.queue_list.list); |
| 92 | } |
| 93 | |
| 94 | pub fn get_playlist(conn: &mut Client) -> AppResult<Vec<String>> { |
| 95 | let list: Vec<String> = conn.playlists()?.iter().map(|p| p.clone().name).collect(); |
| 96 | Ok(list) |
| 97 | } |
| 98 | |
| 99 | pub fn get_append_list(conn: &mut Client) -> AppResult<ContentList<String>> { |
| 100 | let mut list = ContentList::new(); |
| 101 | list.list.push("Current Playlist".to_string()); |
| 102 | for item in Self::get_playlist(conn)? { |
| 103 | list.list.push(item.to_string()); |
| 104 | } |
| 105 | |
| 106 | Ok(list) |
| 107 | } |
| 108 | |
| 109 | /// Handles the <Space> event key |
| 110 | pub fn handle_add_or_remove_from_current_playlist(&mut self) -> AppResult<()> { |
| 111 | match self.selected_tab { |
| 112 | SelectedTab::DirectoryBrowser => { |
| 113 | let (_, file) = self.browser.filetree.get(self.browser.selected).unwrap(); |
| 114 | |
| 115 | let mut status = false; |
| 116 | for (i, song) in self.queue_list.list.clone().iter().enumerate() { |
| 117 | if song.file.contains(file) { |
| 118 | self.conn.conn.delete(i as u32).unwrap(); |
| 119 | status = true; |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | if !status { |
| 124 | if let Some(full_path) = &self.conn.get_full_path(file) { |
| 125 | let song = self.conn.get_song_with_only_filename(full_path); |
| 126 | self.conn.conn.push(&song)?; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | if self.browser.selected != self.browser.filetree.len() - 1 { |
| 131 | self.browser.selected += 1; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | SelectedTab::Queue => { |
| 136 | if self.queue_list.list.is_empty() { |
| 137 | return Ok(()); |
| 138 | } |
| 139 | let file = self |
| 140 | .queue_list |
| 141 | .list |
| 142 | .get(self.queue_list.index) |
| 143 | .unwrap() |
| 144 | .file |
| 145 | .to_string(); |
| 146 | |
| 147 | for (i, song) in self.queue_list.list.clone().iter().enumerate() { |
| 148 | if song.file.contains(&file) { |
| 149 | self.conn.conn.delete(i as u32).unwrap(); |
| 150 | if self.queue_list.index == self.queue_list.list.len() - 1 |
| 151 | && self.queue_list.index != 0 |
| 152 | { |
| 153 | self.queue_list.index -= 1; |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | _ => {} |
| 160 | } |
| 161 | |
| 162 | self.update_queue(); |
| 163 | Ok(()) |
| 164 | } |
| 165 | |
| 166 | /// Cycle through tabs |
| 167 | pub fn cycle_tabls(&mut self) { |
| 168 | self.selected_tab = match self.selected_tab { |
| 169 | SelectedTab::Queue => SelectedTab::DirectoryBrowser, |
| 170 | SelectedTab::DirectoryBrowser => SelectedTab::Playlists, |
| 171 | SelectedTab::Playlists => SelectedTab::DirectoryBrowser, |
| 172 | }; |
| 173 | } |
| 174 | |
| 175 | /// handles the Enter event on the directory browser |
| 176 | pub fn handle_enter(&mut self) -> AppResult<()> { |
| 177 | let browser = &mut self.browser; |
| 178 | let (t, path) = browser.filetree.get(browser.selected).unwrap(); |
| 179 | if t == "directory" { |
| 180 | if path != "." { |
| 181 | browser.prev_path = browser.path.clone(); |
| 182 | browser.path = browser.prev_path.clone() + "/" + path; |
| 183 | browser.update_directory(&mut self.conn)?; |
| 184 | browser.prev_selected = browser.selected; |
| 185 | browser.selected = 0; |
| 186 | } |
| 187 | } else { |
| 188 | let index = self |
| 189 | .queue_list |
| 190 | .list |
| 191 | .iter() |
| 192 | .position(|x| x.file.contains(path)); |
| 193 | |
| 194 | if index.is_some() { |
| 195 | self.conn.conn.switch(index.unwrap() as u32)?; |
| 196 | } else { |
| 197 | let mut filename = format!("{}/{}", browser.path, path); |
| 198 | |
| 199 | // Remove "./" from the beginning of filename |
| 200 | filename.remove(0); |
| 201 | filename.remove(0); |
| 202 | |
| 203 | let song = self.conn.get_song_with_only_filename(&filename); |
| 204 | self.conn.push(&song)?; |
| 205 | |
| 206 | // updating queue, to avoid multiple pushes of the same songs if we enter multiple times before the queue gets updated |
| 207 | self.update_queue(); |
| 208 | } |
| 209 | } |
| 210 | Ok(()) |
| 211 | } |
| 212 | |
| 213 | // Cursor movements |
| 214 | pub fn move_cursor_left(&mut self) { |
| 215 | match self.inputmode { |
| 216 | InputMode::PlaylistRename => { |
| 217 | let cursor_moved_left = self.pl_cursor_pos.saturating_sub(1); |
| 218 | self.pl_cursor_pos = self.clamp_cursor(cursor_moved_left); |
| 219 | } |
| 220 | InputMode::Editing => { |
| 221 | let cursor_moved_left = self.search_cursor_pos.saturating_sub(1); |
| 222 | self.search_cursor_pos = self.clamp_cursor(cursor_moved_left); |
| 223 | } |
| 224 | _ => {} |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | pub fn move_cursor_right(&mut self) { |
| 229 | match self.inputmode { |
| 230 | InputMode::PlaylistRename => { |
| 231 | let cursor_moved_right = self.pl_cursor_pos.saturating_add(1); |
| 232 | self.pl_cursor_pos = self.clamp_cursor(cursor_moved_right); |
| 233 | } |
| 234 | InputMode::Editing => { |
| 235 | let cursor_moved_right = self.search_cursor_pos.saturating_add(1); |
| 236 | self.search_cursor_pos = self.clamp_cursor(cursor_moved_right); |
| 237 | } |
| 238 | _ => {} |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | pub fn enter_char(&mut self, new_char: char) { |
| 243 | match self.inputmode { |
| 244 | InputMode::PlaylistRename => { |
| 245 | self.pl_newname_input.insert(self.pl_cursor_pos, new_char); |
| 246 | self.move_cursor_right(); |
| 247 | } |
| 248 | InputMode::Editing => { |
| 249 | self.search_input.insert(self.search_cursor_pos, new_char); |
| 250 | self.move_cursor_right(); |
| 251 | } |
| 252 | _ => {} |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | pub fn delete_char(&mut self) { |
| 257 | let is_not_cursor_leftmost = match self.inputmode { |
| 258 | InputMode::PlaylistRename => self.pl_cursor_pos != 0, |
| 259 | InputMode::Editing => self.search_cursor_pos != 0, |
| 260 | _ => false, |
| 261 | }; |
| 262 | |
| 263 | if is_not_cursor_leftmost { |
| 264 | // Method "remove" is not used on the saved text for deleting the selected char. |
| 265 | // Reason: Using remove on String works on bytes instead of the chars. |
| 266 | // Using remove would require special care because of char boundaries. |
| 267 | |
| 268 | let current_index = match self.inputmode { |
| 269 | InputMode::Editing => self.search_cursor_pos, |
| 270 | InputMode::PlaylistRename => self.pl_cursor_pos, |
| 271 | _ => 0, |
| 272 | }; |
| 273 | |
| 274 | let from_left_to_current_index = current_index - 1; |
| 275 | |
| 276 | if self.inputmode == InputMode::PlaylistRename { |
| 277 | // Getting all characters before the selected character. |
| 278 | let before_char_to_delete = self |
| 279 | .pl_newname_input |
| 280 | .chars() |
| 281 | .take(from_left_to_current_index); |
| 282 | // Getting all characters after selected character. |
| 283 | let after_char_to_delete = self.pl_newname_input.chars().skip(current_index); |
| 284 | // Put all characters together except the selected one. |
| 285 | // By leaving the selected one out, it is forgotten and therefore deleted. |
| 286 | self.pl_newname_input = before_char_to_delete.chain(after_char_to_delete).collect(); |
| 287 | self.move_cursor_left(); |
| 288 | } else if self.inputmode == InputMode::Editing { |
| 289 | let before_char_to_delete = |
| 290 | self.search_input.chars().take(from_left_to_current_index); |
| 291 | let after_char_to_delete = self.search_input.chars().skip(current_index); |
| 292 | self.search_input = before_char_to_delete.chain(after_char_to_delete).collect(); |
| 293 | self.move_cursor_left(); |
| 294 | } |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | pub fn clamp_cursor(&self, new_cursor_pos: usize) -> usize { |
| 299 | match self.inputmode { |
| 300 | InputMode::PlaylistRename => new_cursor_pos.clamp(0, self.pl_newname_input.len()), |
| 301 | InputMode::Editing => new_cursor_pos.clamp(0, self.search_input.len()), |
| 302 | _ => 0, |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | pub fn reset_cursor(&mut self) { |
| 307 | match self.inputmode { |
| 308 | InputMode::Editing => { |
| 309 | self.search_cursor_pos = 0; |
| 310 | } |
| 311 | InputMode::PlaylistRename => { |
| 312 | self.pl_cursor_pos = 0; |
| 313 | } |
| 314 | _ => {} |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | /// Given time in seconds, convert it to hh:mm:ss |
| 319 | pub fn format_time(time: Duration) -> String { |
| 320 | let time = time.as_secs(); |
| 321 | let h = time / 3600; |
| 322 | let m = (time % 3600) / 60; |
| 323 | let s = (time % 3600) % 60; |
| 324 | if h == 0 { |
| 325 | format!("{:02}:{:02}", m, s) |
| 326 | } else { |
| 327 | format!("{:02}:{:02}:{:02}", h, m, s) |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | pub fn change_playlist_name(&mut self) -> AppResult<()> { |
| 332 | if self.selected_tab == SelectedTab::Playlists { |
| 333 | self.inputmode = InputMode::PlaylistRename; |
| 334 | } |
| 335 | Ok(()) |
| 336 | } |
| 337 | } |