| 1 | //! Daemon state management |
| 2 | |
| 3 | use anyhow::{Context, Result}; |
| 4 | use std::collections::HashMap; |
| 5 | use std::time::Duration; |
| 6 | use tokio::net::UnixStream; |
| 7 | use tokio::signal::unix::{signal, SignalKind}; |
| 8 | |
| 9 | use crate::cache::DiskCache; |
| 10 | use crate::config::{Config, ScaleMode}; |
| 11 | use crate::ipc::{Command, GarEvent, GarIpcClient, IpcServer, Response}; |
| 12 | use crate::ipc::server::IpcClient; |
| 13 | use crate::media::{scale_image, AnimatedGif, AnimatedPng, AnimatedWebP, AnimationFrame, ImageLoader}; |
| 14 | #[cfg(feature = "video")] |
| 15 | use crate::media::{VideoDecoder, is_video_file}; |
| 16 | use crate::state::{detect_source_type, PlaylistState}; |
| 17 | use crate::x11::{AnimationRenderer, Connection}; |
| 18 | |
| 19 | use super::pid; |
| 20 | |
| 21 | /// Current wallpaper state for a monitor |
| 22 | #[derive(Debug, Clone)] |
| 23 | pub struct MonitorWallpaper { |
| 24 | /// Monitor name |
| 25 | pub name: String, |
| 26 | /// Current wallpaper source |
| 27 | pub source: String, |
| 28 | /// Scale mode |
| 29 | pub mode: ScaleMode, |
| 30 | } |
| 31 | |
| 32 | /// Main daemon state |
| 33 | pub struct DaemonState { |
| 34 | /// Current wallpaper per monitor |
| 35 | pub monitors: HashMap<String, MonitorWallpaper>, |
| 36 | |
| 37 | /// Current workspace |
| 38 | pub current_workspace: usize, |
| 39 | |
| 40 | /// Whether slideshow/animations are paused |
| 41 | pub paused: bool, |
| 42 | |
| 43 | /// Configuration |
| 44 | pub config: Config, |
| 45 | |
| 46 | /// Current playlist state (if any) |
| 47 | pub playlist: Option<PlaylistState>, |
| 48 | |
| 49 | /// Current slideshow interval (None = no auto-rotation) |
| 50 | pub slideshow_interval: Option<Duration>, |
| 51 | } |
| 52 | |
| 53 | impl DaemonState { |
| 54 | pub fn new(config: Config) -> Self { |
| 55 | // Try to load existing playlist state |
| 56 | let playlist = PlaylistState::load().ok().flatten(); |
| 57 | |
| 58 | // Get initial slideshow interval from config |
| 59 | let slideshow_interval = config.default.slideshow |
| 60 | .as_ref() |
| 61 | .filter(|s| s.enabled) |
| 62 | .map(|s| s.interval); |
| 63 | |
| 64 | Self { |
| 65 | monitors: HashMap::new(), |
| 66 | current_workspace: 1, |
| 67 | paused: false, |
| 68 | config, |
| 69 | playlist, |
| 70 | slideshow_interval, |
| 71 | } |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /// Active animation state (works with GIF, WebP, or other animated formats) |
| 76 | pub struct ActiveAnimation { |
| 77 | /// Pre-scaled frames for quick rendering |
| 78 | scaled_frames: Vec<image::RgbaImage>, |
| 79 | /// Frame delays (parallel to scaled_frames) |
| 80 | frame_delays: Vec<Duration>, |
| 81 | /// Animation renderer (double-buffered) |
| 82 | renderer: AnimationRenderer, |
| 83 | /// Current frame index |
| 84 | current_frame: usize, |
| 85 | /// Max FPS |
| 86 | max_fps: u32, |
| 87 | /// Scale mode (for status) |
| 88 | #[allow(dead_code)] |
| 89 | scale_mode: ScaleMode, |
| 90 | /// Source URI (for status) |
| 91 | #[allow(dead_code)] |
| 92 | source: String, |
| 93 | } |
| 94 | |
| 95 | impl ActiveAnimation { |
| 96 | /// Create from animation frames |
| 97 | fn from_frames( |
| 98 | frames: &[AnimationFrame], |
| 99 | renderer: AnimationRenderer, |
| 100 | max_fps: u32, |
| 101 | scale_mode: ScaleMode, |
| 102 | source: String, |
| 103 | screen_width: u32, |
| 104 | screen_height: u32, |
| 105 | ) -> Self { |
| 106 | let scaled_frames: Vec<image::RgbaImage> = frames |
| 107 | .iter() |
| 108 | .map(|frame| scale_image(&frame.image, screen_width, screen_height, scale_mode)) |
| 109 | .collect(); |
| 110 | |
| 111 | let frame_delays: Vec<Duration> = frames |
| 112 | .iter() |
| 113 | .map(|frame| frame.delay) |
| 114 | .collect(); |
| 115 | |
| 116 | Self { |
| 117 | scaled_frames, |
| 118 | frame_delays, |
| 119 | renderer, |
| 120 | current_frame: 0, |
| 121 | max_fps, |
| 122 | scale_mode, |
| 123 | source, |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | /// Get the delay for the current frame |
| 128 | fn current_delay(&self) -> Duration { |
| 129 | let frame_delay = self.frame_delays[self.current_frame]; |
| 130 | let min_delay = if self.max_fps > 0 { |
| 131 | Duration::from_secs_f64(1.0 / self.max_fps as f64) |
| 132 | } else { |
| 133 | Duration::ZERO |
| 134 | }; |
| 135 | frame_delay.max(min_delay) |
| 136 | } |
| 137 | |
| 138 | /// Advance to next frame, returning true if looped |
| 139 | fn advance(&mut self) -> bool { |
| 140 | self.current_frame += 1; |
| 141 | if self.current_frame >= self.scaled_frames.len() { |
| 142 | self.current_frame = 0; |
| 143 | true |
| 144 | } else { |
| 145 | false |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | /// Get frame count |
| 150 | #[allow(dead_code)] |
| 151 | fn frame_count(&self) -> usize { |
| 152 | self.scaled_frames.len() |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | /// Main daemon struct |
| 157 | pub struct Daemon { |
| 158 | /// X11 connection |
| 159 | conn: Connection, |
| 160 | |
| 161 | /// Daemon state |
| 162 | state: DaemonState, |
| 163 | |
| 164 | /// Current animation (if playing) |
| 165 | animation: Option<ActiveAnimation>, |
| 166 | |
| 167 | /// Disk cache for remote images |
| 168 | cache: Option<DiskCache>, |
| 169 | } |
| 170 | |
| 171 | impl Daemon { |
| 172 | /// Create a new daemon |
| 173 | /// |
| 174 | /// Establishes X11 connection and initializes state. |
| 175 | /// Fails early with helpful error messages if X11 is unavailable. |
| 176 | pub fn new(config: Config) -> Result<Self> { |
| 177 | let conn = Connection::new() |
| 178 | .context("Failed to initialize X11 connection for daemon")?; |
| 179 | |
| 180 | // Verify connection is working |
| 181 | if !conn.is_alive() { |
| 182 | anyhow::bail!("X11 connection established but not responding"); |
| 183 | } |
| 184 | |
| 185 | let (width, height) = conn.screen_dimensions(); |
| 186 | tracing::info!("X11 connection established (screen: {}x{})", width, height); |
| 187 | |
| 188 | // Initialize disk cache |
| 189 | let cache = match DiskCache::default_dir() { |
| 190 | Some(cache_dir) => { |
| 191 | let max_size_mb = config.cache.max_size_mb; |
| 192 | match DiskCache::new(cache_dir.clone(), max_size_mb) { |
| 193 | Ok(cache) => { |
| 194 | tracing::info!("Disk cache initialized: {} (max {}MB)", cache_dir.display(), max_size_mb); |
| 195 | Some(cache) |
| 196 | } |
| 197 | Err(e) => { |
| 198 | tracing::warn!("Failed to initialize disk cache: {}", e); |
| 199 | None |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | None => { |
| 204 | tracing::warn!("No cache directory available, caching disabled"); |
| 205 | None |
| 206 | } |
| 207 | }; |
| 208 | |
| 209 | let state = DaemonState::new(config); |
| 210 | |
| 211 | Ok(Self { |
| 212 | conn, |
| 213 | state, |
| 214 | animation: None, |
| 215 | cache, |
| 216 | }) |
| 217 | } |
| 218 | |
| 219 | /// Run the daemon event loop |
| 220 | pub async fn run(&mut self) -> Result<()> { |
| 221 | // Check for stale PID file and clean up |
| 222 | if let Some(existing_pid) = pid::check_stale_pid()? { |
| 223 | anyhow::bail!("Another daemon is already running (PID: {})", existing_pid); |
| 224 | } |
| 225 | |
| 226 | // Write our PID file |
| 227 | pid::write_pid_file()?; |
| 228 | |
| 229 | // Ensure cleanup on exit (both normal and panic) |
| 230 | let _pid_guard = PidFileGuard; |
| 231 | |
| 232 | let server = IpcServer::new().await?; |
| 233 | tracing::info!("Listening on {}", server.path().display()); |
| 234 | |
| 235 | // Set initial wallpaper from config if specified |
| 236 | if !self.state.config.default.source.is_empty() { |
| 237 | if let Err(e) = self.apply_default_wallpaper() { |
| 238 | tracing::warn!("Failed to set initial wallpaper: {}", e); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | // Try to connect to gar (optional) |
| 243 | let mut gar_client = self.try_connect_gar().await; |
| 244 | |
| 245 | // Track next slideshow time |
| 246 | let mut next_slideshow: Option<tokio::time::Instant> = self.state.slideshow_interval |
| 247 | .map(|d| tokio::time::Instant::now() + d); |
| 248 | |
| 249 | tracing::info!("Daemon started"); |
| 250 | if let Some(interval) = self.state.slideshow_interval { |
| 251 | tracing::info!("Slideshow enabled: {:?} interval", interval); |
| 252 | } |
| 253 | |
| 254 | // Track next animation frame time |
| 255 | let mut next_animation_frame: Option<tokio::time::Instant> = None; |
| 256 | |
| 257 | // Set up signal handlers |
| 258 | let mut sigterm = signal(SignalKind::terminate())?; |
| 259 | let mut sigint = signal(SignalKind::interrupt())?; |
| 260 | let mut sighup = signal(SignalKind::hangup())?; |
| 261 | |
| 262 | // Main event loop |
| 263 | loop { |
| 264 | tokio::select! { |
| 265 | // SIGTERM - graceful shutdown |
| 266 | _ = sigterm.recv() => { |
| 267 | tracing::info!("Received SIGTERM, shutting down..."); |
| 268 | break; |
| 269 | } |
| 270 | |
| 271 | // SIGINT (Ctrl+C) - graceful shutdown |
| 272 | _ = sigint.recv() => { |
| 273 | tracing::info!("Received SIGINT, shutting down..."); |
| 274 | break; |
| 275 | } |
| 276 | |
| 277 | // SIGHUP - reload configuration |
| 278 | _ = sighup.recv() => { |
| 279 | tracing::info!("Received SIGHUP, reloading configuration..."); |
| 280 | if let Err(e) = self.reload_config() { |
| 281 | tracing::error!("Failed to reload config: {}", e); |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | // IPC client connection |
| 286 | result = server.accept() => { |
| 287 | match result { |
| 288 | Ok(stream) => { |
| 289 | if let Err(e) = self.handle_client(stream).await { |
| 290 | tracing::debug!("Client error: {}", e); |
| 291 | } |
| 292 | // Update slideshow timer if interval changed |
| 293 | next_slideshow = self.state.slideshow_interval |
| 294 | .map(|d| tokio::time::Instant::now() + d); |
| 295 | // Update animation timer if animation started |
| 296 | if self.animation.is_some() && next_animation_frame.is_none() { |
| 297 | next_animation_frame = Some(tokio::time::Instant::now()); |
| 298 | } else if self.animation.is_none() { |
| 299 | next_animation_frame = None; |
| 300 | } |
| 301 | } |
| 302 | Err(e) => { |
| 303 | tracing::warn!("Accept error: {}", e); |
| 304 | } |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | // Animation frame timer (highest priority when active) |
| 309 | _ = async { |
| 310 | match (next_animation_frame, self.state.paused, &self.animation) { |
| 311 | (Some(deadline), false, Some(_)) => { |
| 312 | tokio::time::sleep_until(deadline).await; |
| 313 | } |
| 314 | _ => { |
| 315 | std::future::pending::<()>().await; |
| 316 | } |
| 317 | } |
| 318 | } => { |
| 319 | if let Err(e) = self.render_animation_frame() { |
| 320 | tracing::warn!("Animation frame render failed: {}", e); |
| 321 | // Stop animation on error |
| 322 | self.animation = None; |
| 323 | next_animation_frame = None; |
| 324 | } else if let Some(ref anim) = self.animation { |
| 325 | // Schedule next frame |
| 326 | let delay = anim.current_delay(); |
| 327 | next_animation_frame = Some(tokio::time::Instant::now() + delay); |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | // Slideshow timer (only if enabled, not paused, and no animation) |
| 332 | _ = async { |
| 333 | match (next_slideshow, self.state.paused, &self.animation) { |
| 334 | (Some(deadline), false, None) => { |
| 335 | tokio::time::sleep_until(deadline).await; |
| 336 | } |
| 337 | _ => { |
| 338 | std::future::pending::<()>().await; |
| 339 | } |
| 340 | } |
| 341 | } => { |
| 342 | if let Err(e) = self.advance_slideshow() { |
| 343 | tracing::warn!("Slideshow advance failed: {}", e); |
| 344 | } |
| 345 | // Reset timer using current interval |
| 346 | next_slideshow = self.state.slideshow_interval |
| 347 | .map(|d| tokio::time::Instant::now() + d); |
| 348 | } |
| 349 | |
| 350 | // gar workspace events (only if connected) |
| 351 | event = async { |
| 352 | if let Some(ref mut client) = gar_client { |
| 353 | client.read_event().await |
| 354 | } else { |
| 355 | std::future::pending().await |
| 356 | } |
| 357 | } => { |
| 358 | match event { |
| 359 | Ok(event) => { |
| 360 | if let Err(e) = self.handle_gar_event(event) { |
| 361 | tracing::warn!("gar event handling failed: {}", e); |
| 362 | } |
| 363 | } |
| 364 | Err(e) => { |
| 365 | tracing::debug!("gar connection lost: {}", e); |
| 366 | gar_client = None; |
| 367 | } |
| 368 | } |
| 369 | } |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | // Graceful shutdown complete |
| 374 | // PID file will be removed by PidFileGuard drop |
| 375 | tracing::info!("Daemon shutdown complete"); |
| 376 | Ok(()) |
| 377 | } |
| 378 | |
| 379 | /// Render the next animation frame |
| 380 | fn render_animation_frame(&mut self) -> Result<()> { |
| 381 | let anim = self.animation.as_mut() |
| 382 | .ok_or_else(|| anyhow::anyhow!("No active animation"))?; |
| 383 | |
| 384 | // Render current frame |
| 385 | let frame = &anim.scaled_frames[anim.current_frame]; |
| 386 | anim.renderer.render_and_present(&mut self.conn, frame)?; |
| 387 | |
| 388 | // Advance to next frame |
| 389 | anim.advance(); |
| 390 | |
| 391 | Ok(()) |
| 392 | } |
| 393 | |
| 394 | /// Handle a single client connection |
| 395 | async fn handle_client(&mut self, stream: UnixStream) -> Result<()> { |
| 396 | let mut client = IpcClient::new(stream); |
| 397 | |
| 398 | // Single request-response per connection (stateless) |
| 399 | if let Some(cmd) = client.read_command().await? { |
| 400 | let response = self.handle_command(cmd); |
| 401 | client.send_response(&response).await?; |
| 402 | } |
| 403 | |
| 404 | Ok(()) |
| 405 | } |
| 406 | |
| 407 | /// Handle an IPC command |
| 408 | fn handle_command(&mut self, cmd: Command) -> Response { |
| 409 | match cmd { |
| 410 | Command::Set { source, mode, monitor: _, interval_secs, shuffle, animate, max_fps } => { |
| 411 | let scale_mode = mode.unwrap_or(self.state.config.general.mode); |
| 412 | |
| 413 | // Stop any existing animation first |
| 414 | self.animation = None; |
| 415 | |
| 416 | // Check if we should animate (GIF, WebP, or APNG with animate flag) |
| 417 | let source_lower = source.to_lowercase(); |
| 418 | let is_animatable = source_lower.ends_with(".gif") |
| 419 | || source_lower.contains(".gif?") |
| 420 | || source_lower.contains("/gif/") |
| 421 | || source_lower.ends_with(".webp") |
| 422 | || source_lower.contains(".webp?") |
| 423 | || source_lower.contains("/webp/") |
| 424 | || source_lower.ends_with(".apng") |
| 425 | || source_lower.ends_with(".png") // PNG might be APNG |
| 426 | || source_lower.contains(".apng?") |
| 427 | // Video formats |
| 428 | || source_lower.ends_with(".mp4") |
| 429 | || source_lower.ends_with(".webm") |
| 430 | || source_lower.ends_with(".mkv") |
| 431 | || source_lower.ends_with(".avi") |
| 432 | || source_lower.ends_with(".mov") |
| 433 | || source_lower.ends_with(".m4v"); |
| 434 | |
| 435 | // Videos should always be animated (no sense displaying a single frame) |
| 436 | let is_video = source_lower.ends_with(".mp4") |
| 437 | || source_lower.ends_with(".webm") |
| 438 | || source_lower.ends_with(".mkv") |
| 439 | || source_lower.ends_with(".avi") |
| 440 | || source_lower.ends_with(".mov") |
| 441 | || source_lower.ends_with(".m4v"); |
| 442 | |
| 443 | // Auto-animate videos, or animate if flag is set for other formats |
| 444 | let should_animate = is_video || (animate && is_animatable); |
| 445 | |
| 446 | if should_animate { |
| 447 | // Try to start animation |
| 448 | match self.start_animation(&source, scale_mode, max_fps) { |
| 449 | Ok(_) => { |
| 450 | tracing::info!("Animation started: {}", source); |
| 451 | return Response::ok(); |
| 452 | } |
| 453 | Err(e) => { |
| 454 | tracing::warn!("Failed to start animation: {}, falling back to static", e); |
| 455 | // Fall through to static handling |
| 456 | } |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | // Set up slideshow with the new source (static image) |
| 461 | match self.set_wallpaper_with_options(&source, scale_mode, shuffle, interval_secs) { |
| 462 | Ok(_) => { |
| 463 | // Update slideshow interval |
| 464 | self.state.slideshow_interval = interval_secs.map(Duration::from_secs); |
| 465 | |
| 466 | if let Some(secs) = interval_secs { |
| 467 | tracing::info!("Slideshow started: {} second interval", secs); |
| 468 | } |
| 469 | |
| 470 | Response::ok() |
| 471 | } |
| 472 | Err(e) => Response::error(e.to_string()), |
| 473 | } |
| 474 | } |
| 475 | Command::SetWorkspace { workspace, source, mode } => { |
| 476 | let scale_mode = mode.unwrap_or(self.state.config.general.mode); |
| 477 | // Only set if we're on this workspace |
| 478 | if self.state.current_workspace == workspace { |
| 479 | match self.set_wallpaper_from_source(&source, scale_mode, false) { |
| 480 | Ok(_) => Response::ok(), |
| 481 | Err(e) => Response::error(e.to_string()), |
| 482 | } |
| 483 | } else { |
| 484 | Response::ok() // Ignore, we're not on this workspace |
| 485 | } |
| 486 | } |
| 487 | Command::Next { .. } => { |
| 488 | match self.advance_slideshow() { |
| 489 | Ok(_) => Response::ok(), |
| 490 | Err(e) => Response::error(e.to_string()), |
| 491 | } |
| 492 | } |
| 493 | Command::Prev { .. } => { |
| 494 | match self.prev_slideshow() { |
| 495 | Ok(_) => Response::ok(), |
| 496 | Err(e) => Response::error(e.to_string()), |
| 497 | } |
| 498 | } |
| 499 | Command::Random { .. } => { |
| 500 | match self.random_wallpaper() { |
| 501 | Ok(_) => Response::ok(), |
| 502 | Err(e) => Response::error(e.to_string()), |
| 503 | } |
| 504 | } |
| 505 | Command::Status => { |
| 506 | Response::ok_with_data(self.get_status()) |
| 507 | } |
| 508 | Command::Pause => { |
| 509 | self.state.paused = true; |
| 510 | tracing::info!("Slideshow paused"); |
| 511 | Response::ok() |
| 512 | } |
| 513 | Command::Resume => { |
| 514 | self.state.paused = false; |
| 515 | tracing::info!("Slideshow resumed"); |
| 516 | Response::ok() |
| 517 | } |
| 518 | Command::Toggle => { |
| 519 | self.state.paused = !self.state.paused; |
| 520 | tracing::info!("Slideshow {}", if self.state.paused { "paused" } else { "resumed" }); |
| 521 | Response::ok() |
| 522 | } |
| 523 | Command::Reload => { |
| 524 | match self.reload_config() { |
| 525 | Ok(_) => Response::ok(), |
| 526 | Err(e) => Response::error(e.to_string()), |
| 527 | } |
| 528 | } |
| 529 | Command::ClearCache => { |
| 530 | if let Some(ref mut cache) = self.cache { |
| 531 | match cache.clear() { |
| 532 | Ok(_) => { |
| 533 | tracing::info!("Cache cleared"); |
| 534 | Response::ok() |
| 535 | } |
| 536 | Err(e) => Response::error(format!("Failed to clear cache: {}", e)), |
| 537 | } |
| 538 | } else { |
| 539 | Response::ok() // No cache to clear |
| 540 | } |
| 541 | } |
| 542 | Command::List { source } => { |
| 543 | match self.list_source(&source) { |
| 544 | Ok(images) => Response::ok_with_data(serde_json::json!(images)), |
| 545 | Err(e) => Response::error(e.to_string()), |
| 546 | } |
| 547 | } |
| 548 | Command::Subscribe { .. } | Command::Unsubscribe { .. } => { |
| 549 | // Subscriptions not yet implemented |
| 550 | Response::error("Subscriptions not yet implemented") |
| 551 | } |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | /// Handle a gar event |
| 556 | fn handle_gar_event(&mut self, event: GarEvent) -> Result<()> { |
| 557 | match event { |
| 558 | GarEvent::Workspace { current, previous } => { |
| 559 | tracing::debug!("Workspace changed: {} -> {}", previous, current); |
| 560 | self.on_workspace_change(current)?; |
| 561 | } |
| 562 | GarEvent::Monitor { name, action } => { |
| 563 | tracing::debug!("Monitor {}: {}", action, name); |
| 564 | // TODO: Handle monitor changes |
| 565 | } |
| 566 | GarEvent::Focus { .. } => { |
| 567 | // Ignore focus events |
| 568 | } |
| 569 | GarEvent::Unknown => { |
| 570 | // Ignore unknown events |
| 571 | } |
| 572 | } |
| 573 | Ok(()) |
| 574 | } |
| 575 | |
| 576 | /// Try to connect to gar IPC |
| 577 | async fn try_connect_gar(&self) -> Option<GarIpcClient> { |
| 578 | match GarIpcClient::connect().await { |
| 579 | Ok(mut client) => { |
| 580 | if client.subscribe(&["workspace"]).await.is_ok() { |
| 581 | tracing::info!("Connected to gar IPC"); |
| 582 | Some(client) |
| 583 | } else { |
| 584 | tracing::debug!("Failed to subscribe to gar events"); |
| 585 | None |
| 586 | } |
| 587 | } |
| 588 | Err(_) => { |
| 589 | tracing::debug!("gar not running, workspace integration disabled"); |
| 590 | None |
| 591 | } |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | /// Apply the default wallpaper from config |
| 596 | fn apply_default_wallpaper(&mut self) -> Result<()> { |
| 597 | let source = self.state.config.default.source.clone(); |
| 598 | let mode = self.state.config.default.mode; |
| 599 | let shuffle = self.state.config.default.slideshow |
| 600 | .as_ref() |
| 601 | .map(|s| s.shuffle) |
| 602 | .unwrap_or(false); |
| 603 | |
| 604 | if source.is_empty() { |
| 605 | return Ok(()); |
| 606 | } |
| 607 | |
| 608 | self.set_wallpaper_from_source(&source, mode, shuffle) |
| 609 | } |
| 610 | |
| 611 | /// Start an animated image playback (GIF, WebP, APNG, or video) |
| 612 | fn start_animation(&mut self, source: &str, mode: ScaleMode, max_fps: u32) -> Result<()> { |
| 613 | let is_remote = source.starts_with("http://") || source.starts_with("https://"); |
| 614 | let source_lower = source.to_lowercase(); |
| 615 | |
| 616 | // Detect format from extension/URL |
| 617 | let is_webp = source_lower.ends_with(".webp") |
| 618 | || source_lower.contains(".webp?") |
| 619 | || source_lower.contains("/webp/"); |
| 620 | let is_apng = source_lower.ends_with(".apng") |
| 621 | || source_lower.contains(".apng?"); |
| 622 | let is_png = source_lower.ends_with(".png"); |
| 623 | |
| 624 | // Check for video formats |
| 625 | #[cfg(feature = "video")] |
| 626 | let is_video = { |
| 627 | let expanded = shellexpand::tilde(source); |
| 628 | !is_remote && is_video_file(expanded.as_ref()) |
| 629 | }; |
| 630 | #[cfg(not(feature = "video"))] |
| 631 | let is_video = false; |
| 632 | |
| 633 | // Handle video separately (can't load into memory efficiently) |
| 634 | #[cfg(feature = "video")] |
| 635 | if is_video { |
| 636 | return self.start_video_animation(source, mode, max_fps); |
| 637 | } |
| 638 | |
| 639 | // Load animation data for image formats |
| 640 | let bytes = if is_remote { |
| 641 | tracing::info!("Fetching remote animation: {}", source); |
| 642 | self.fetch_bytes(source)? |
| 643 | } else { |
| 644 | let expanded = shellexpand::tilde(source); |
| 645 | std::fs::read(expanded.as_ref()) |
| 646 | .with_context(|| format!("Failed to read: {}", source))? |
| 647 | }; |
| 648 | |
| 649 | // Load frames based on format - clone frames to avoid lifetime issues |
| 650 | let (frames, frame_count, avg_fps, format_name): (Vec<AnimationFrame>, usize, f64, &str) = if is_webp { |
| 651 | let webp = AnimatedWebP::load_from_bytes(&bytes)?; |
| 652 | if !webp.is_animated() { |
| 653 | anyhow::bail!("WebP is not animated (single frame)"); |
| 654 | } |
| 655 | let fc = webp.frame_count(); |
| 656 | let fps = webp.average_fps(); |
| 657 | (webp.frames().to_vec(), fc, fps, "WebP") |
| 658 | } else if is_apng || is_png { |
| 659 | // Try APNG first for .png files (might be animated) |
| 660 | match AnimatedPng::load_from_bytes(&bytes) { |
| 661 | Ok(apng) if apng.is_animated() => { |
| 662 | let fc = apng.frame_count(); |
| 663 | let fps = apng.average_fps(); |
| 664 | (apng.frames().to_vec(), fc, fps, "APNG") |
| 665 | } |
| 666 | Ok(_) => { |
| 667 | anyhow::bail!("PNG is not animated"); |
| 668 | } |
| 669 | Err(e) if is_apng => { |
| 670 | // .apng extension but failed to load as APNG |
| 671 | anyhow::bail!("Failed to load APNG: {}", e); |
| 672 | } |
| 673 | Err(_) => { |
| 674 | // .png extension but not an APNG, try as static |
| 675 | anyhow::bail!("PNG is not animated (use without --animate)"); |
| 676 | } |
| 677 | } |
| 678 | } else { |
| 679 | // Default to GIF |
| 680 | let gif = AnimatedGif::load_from_bytes(&bytes)?; |
| 681 | if !gif.is_animated() { |
| 682 | anyhow::bail!("GIF is not animated (single frame)"); |
| 683 | } |
| 684 | let fc = gif.frame_count(); |
| 685 | let fps = gif.average_fps(); |
| 686 | (gif.frames().to_vec(), fc, fps, "GIF") |
| 687 | }; |
| 688 | |
| 689 | // Suppress warning when video feature is disabled |
| 690 | let _ = is_video; |
| 691 | |
| 692 | // Create animation renderer |
| 693 | let renderer = AnimationRenderer::new(&self.conn)?; |
| 694 | let (width, height) = self.conn.screen_dimensions(); |
| 695 | |
| 696 | tracing::info!( |
| 697 | "Animation loaded: {} frames, {:.1} FPS ({})", |
| 698 | frame_count, |
| 699 | avg_fps, |
| 700 | format_name |
| 701 | ); |
| 702 | |
| 703 | self.animation = Some(ActiveAnimation::from_frames( |
| 704 | &frames, |
| 705 | renderer, |
| 706 | max_fps, |
| 707 | mode, |
| 708 | source.to_string(), |
| 709 | width as u32, |
| 710 | height as u32, |
| 711 | )); |
| 712 | |
| 713 | Ok(()) |
| 714 | } |
| 715 | |
| 716 | /// Start video animation playback |
| 717 | #[cfg(feature = "video")] |
| 718 | fn start_video_animation(&mut self, source: &str, mode: ScaleMode, max_fps: u32) -> Result<()> { |
| 719 | let expanded = shellexpand::tilde(source); |
| 720 | let path = std::path::Path::new(expanded.as_ref()); |
| 721 | |
| 722 | tracing::info!("Opening video: {}", path.display()); |
| 723 | |
| 724 | let mut decoder = VideoDecoder::open(path)?; |
| 725 | let info = decoder.info().clone(); |
| 726 | let frame_delay = decoder.frame_delay(); |
| 727 | |
| 728 | tracing::info!( |
| 729 | "Video: {}x{}, {:.1} FPS, {:.1}s duration, ~{} frames ({})", |
| 730 | info.width, |
| 731 | info.height, |
| 732 | info.frame_rate, |
| 733 | info.duration, |
| 734 | info.frame_count, |
| 735 | info.codec |
| 736 | ); |
| 737 | |
| 738 | // Limit frames for memory efficiency (max ~30 seconds at target fps) |
| 739 | let max_frames = (30.0 * info.frame_rate.min(max_fps as f64)) as usize; |
| 740 | let frame_limit = max_frames.max(100).min(info.frame_count); |
| 741 | |
| 742 | // Extract frames |
| 743 | let mut frames = Vec::with_capacity(frame_limit); |
| 744 | while let Some(decoded) = decoder.next_frame()? { |
| 745 | frames.push(AnimationFrame { |
| 746 | image: decoded.image, |
| 747 | delay: frame_delay, |
| 748 | }); |
| 749 | |
| 750 | if frames.len() >= frame_limit { |
| 751 | tracing::debug!("Reached frame limit ({}), stopping decode", frame_limit); |
| 752 | break; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | if frames.is_empty() { |
| 757 | anyhow::bail!("Video has no decodable frames"); |
| 758 | } |
| 759 | |
| 760 | let frame_count = frames.len(); |
| 761 | let avg_fps = info.frame_rate; |
| 762 | |
| 763 | // Create animation renderer |
| 764 | let renderer = AnimationRenderer::new(&self.conn)?; |
| 765 | let (width, height) = self.conn.screen_dimensions(); |
| 766 | |
| 767 | tracing::info!( |
| 768 | "Video loaded: {} frames, {:.1} FPS", |
| 769 | frame_count, |
| 770 | avg_fps |
| 771 | ); |
| 772 | |
| 773 | self.animation = Some(ActiveAnimation::from_frames( |
| 774 | &frames, |
| 775 | renderer, |
| 776 | max_fps, |
| 777 | mode, |
| 778 | source.to_string(), |
| 779 | width as u32, |
| 780 | height as u32, |
| 781 | )); |
| 782 | |
| 783 | Ok(()) |
| 784 | } |
| 785 | |
| 786 | /// Fetch raw bytes from a URL (with caching) |
| 787 | fn fetch_bytes(&mut self, url: &str) -> Result<Vec<u8>> { |
| 788 | // Check cache first |
| 789 | if let Some(ref mut cache) = self.cache { |
| 790 | if let Some(cached_path) = cache.get(url) { |
| 791 | tracing::debug!("Cache hit: {}", url); |
| 792 | return std::fs::read(&cached_path) |
| 793 | .context("Failed to read cached file"); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | // Fetch from network |
| 798 | tracing::debug!("Cache miss, fetching: {}", url); |
| 799 | let client = reqwest::blocking::Client::builder() |
| 800 | .user_agent("garbg/0.1") |
| 801 | .build()?; |
| 802 | |
| 803 | let response = client.get(url).send()?; |
| 804 | let status = response.status(); |
| 805 | |
| 806 | if !status.is_success() { |
| 807 | anyhow::bail!("HTTP error {}: {}", status, url); |
| 808 | } |
| 809 | |
| 810 | // Get ETag for conditional requests |
| 811 | let etag = response.headers() |
| 812 | .get("etag") |
| 813 | .and_then(|v| v.to_str().ok()) |
| 814 | .map(String::from); |
| 815 | |
| 816 | let bytes = response.bytes()?.to_vec(); |
| 817 | |
| 818 | // Store in cache |
| 819 | if let Some(ref mut cache) = self.cache { |
| 820 | if let Err(e) = cache.store(url, &bytes, etag) { |
| 821 | tracing::warn!("Failed to cache {}: {}", url, e); |
| 822 | } else { |
| 823 | tracing::debug!("Cached: {}", url); |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | Ok(bytes) |
| 828 | } |
| 829 | |
| 830 | /// Set wallpaper with full options (used by IPC Set command) |
| 831 | fn set_wallpaper_with_options( |
| 832 | &mut self, |
| 833 | source: &str, |
| 834 | mode: ScaleMode, |
| 835 | shuffle: bool, |
| 836 | _interval_secs: Option<u64>, |
| 837 | ) -> Result<()> { |
| 838 | self.set_wallpaper_from_source(source, mode, shuffle) |
| 839 | } |
| 840 | |
| 841 | /// Set wallpaper from a source (file, directory, or URL) |
| 842 | fn set_wallpaper_from_source(&mut self, source: &str, mode: ScaleMode, shuffle: bool) -> Result<()> { |
| 843 | // Expand path |
| 844 | let expanded = shellexpand::tilde(source); |
| 845 | let path = std::path::Path::new(expanded.as_ref()); |
| 846 | |
| 847 | // Check if it's a directory |
| 848 | if path.is_dir() { |
| 849 | // Create a playlist from the directory |
| 850 | let images = self.list_local_directory(&expanded)?; |
| 851 | if images.is_empty() { |
| 852 | anyhow::bail!("No images found in directory: {}", source); |
| 853 | } |
| 854 | |
| 855 | let mut playlist = PlaylistState::new( |
| 856 | source.to_string(), |
| 857 | detect_source_type(source), |
| 858 | images, |
| 859 | shuffle, |
| 860 | mode, |
| 861 | ); |
| 862 | |
| 863 | if shuffle { |
| 864 | playlist.reshuffle(); |
| 865 | } |
| 866 | |
| 867 | let first = playlist.current().unwrap_or("").to_string(); |
| 868 | playlist.save()?; |
| 869 | self.state.playlist = Some(playlist); |
| 870 | |
| 871 | self.set_wallpaper(&first, mode)?; |
| 872 | |
| 873 | tracing::info!( |
| 874 | "Playlist loaded: {} images{}", |
| 875 | self.state.playlist.as_ref().map(|p| p.len()).unwrap_or(0), |
| 876 | if shuffle { " (shuffled)" } else { "" } |
| 877 | ); |
| 878 | } else if source.starts_with("http://") || source.starts_with("https://") { |
| 879 | // Remote URL |
| 880 | let image = self.fetch_image(source)?; |
| 881 | let (width, height) = self.conn.screen_dimensions(); |
| 882 | let scaled = scale_image(&image, width as u32, height as u32, mode); |
| 883 | self.conn.set_wallpaper(&scaled)?; |
| 884 | tracing::info!("Wallpaper set: {} (mode: {})", source, mode); |
| 885 | } else { |
| 886 | // Single file |
| 887 | self.set_wallpaper(source, mode)?; |
| 888 | } |
| 889 | |
| 890 | Ok(()) |
| 891 | } |
| 892 | |
| 893 | /// Set wallpaper from a local file |
| 894 | pub fn set_wallpaper(&mut self, source: &str, mode: ScaleMode) -> Result<()> { |
| 895 | let expanded = shellexpand::tilde(source); |
| 896 | let image = ImageLoader::load_file(expanded.as_ref())?; |
| 897 | let (width, height) = self.conn.screen_dimensions(); |
| 898 | let scaled = scale_image(&image, width as u32, height as u32, mode); |
| 899 | self.conn.set_wallpaper(&scaled)?; |
| 900 | |
| 901 | tracing::info!("Wallpaper set: {} (mode: {})", source, mode); |
| 902 | |
| 903 | Ok(()) |
| 904 | } |
| 905 | |
| 906 | /// Fetch image from URL (with caching) |
| 907 | fn fetch_image(&mut self, url: &str) -> Result<image::RgbaImage> { |
| 908 | // Use cached bytes |
| 909 | let bytes = self.fetch_bytes(url)?; |
| 910 | ImageLoader::load_bytes(&bytes, None) |
| 911 | } |
| 912 | |
| 913 | /// Advance to the next wallpaper in the slideshow |
| 914 | fn advance_slideshow(&mut self) -> Result<()> { |
| 915 | // Reload state in case it was modified externally |
| 916 | if let Some(ref mut playlist) = self.state.playlist { |
| 917 | playlist.reload()?; |
| 918 | } else if let Some(playlist) = PlaylistState::load()? { |
| 919 | self.state.playlist = Some(playlist); |
| 920 | } |
| 921 | |
| 922 | // Extract what we need from the playlist first |
| 923 | let (next, mode, current_index, total) = { |
| 924 | let playlist = self.state.playlist.as_mut() |
| 925 | .ok_or_else(|| anyhow::anyhow!("No active playlist"))?; |
| 926 | |
| 927 | let next = playlist.next().to_string(); |
| 928 | let mode = playlist.mode; |
| 929 | let current_index = playlist.current_index; |
| 930 | let total = playlist.len(); |
| 931 | playlist.save()?; |
| 932 | |
| 933 | (next, mode, current_index, total) |
| 934 | }; |
| 935 | |
| 936 | self.set_wallpaper(&next, mode)?; |
| 937 | |
| 938 | tracing::info!( |
| 939 | "Slideshow [{}/{}]: {}", |
| 940 | current_index + 1, |
| 941 | total, |
| 942 | next |
| 943 | ); |
| 944 | |
| 945 | Ok(()) |
| 946 | } |
| 947 | |
| 948 | /// Go to the previous wallpaper in the slideshow |
| 949 | fn prev_slideshow(&mut self) -> Result<()> { |
| 950 | // Reload state in case it was modified externally |
| 951 | if let Some(ref mut playlist) = self.state.playlist { |
| 952 | playlist.reload()?; |
| 953 | } else if let Some(playlist) = PlaylistState::load()? { |
| 954 | self.state.playlist = Some(playlist); |
| 955 | } |
| 956 | |
| 957 | // Extract what we need from the playlist first |
| 958 | let (prev, mode, current_index, total) = { |
| 959 | let playlist = self.state.playlist.as_mut() |
| 960 | .ok_or_else(|| anyhow::anyhow!("No active playlist"))?; |
| 961 | |
| 962 | let prev = playlist.prev().to_string(); |
| 963 | let mode = playlist.mode; |
| 964 | let current_index = playlist.current_index; |
| 965 | let total = playlist.len(); |
| 966 | playlist.save()?; |
| 967 | |
| 968 | (prev, mode, current_index, total) |
| 969 | }; |
| 970 | |
| 971 | self.set_wallpaper(&prev, mode)?; |
| 972 | |
| 973 | tracing::info!( |
| 974 | "Slideshow [{}/{}]: {}", |
| 975 | current_index + 1, |
| 976 | total, |
| 977 | prev |
| 978 | ); |
| 979 | |
| 980 | Ok(()) |
| 981 | } |
| 982 | |
| 983 | /// Set a random wallpaper from the current playlist |
| 984 | fn random_wallpaper(&mut self) -> Result<()> { |
| 985 | if let Some(ref mut playlist) = self.state.playlist { |
| 986 | use rand::Rng; |
| 987 | let idx = rand::thread_rng().gen_range(0..playlist.len()); |
| 988 | playlist.current_index = idx; |
| 989 | let img = playlist.images[idx].clone(); |
| 990 | let mode = playlist.mode; |
| 991 | playlist.save()?; |
| 992 | |
| 993 | self.set_wallpaper(&img, mode)?; |
| 994 | } else { |
| 995 | anyhow::bail!("No active playlist"); |
| 996 | } |
| 997 | |
| 998 | Ok(()) |
| 999 | } |
| 1000 | |
| 1001 | /// Handle workspace change |
| 1002 | pub fn on_workspace_change(&mut self, workspace: usize) -> Result<()> { |
| 1003 | self.state.current_workspace = workspace; |
| 1004 | |
| 1005 | // Check if this workspace has a specific wallpaper |
| 1006 | let ws_config = self.state.config.workspaces |
| 1007 | .iter() |
| 1008 | .find(|w| w.id == workspace) |
| 1009 | .cloned(); |
| 1010 | |
| 1011 | if let Some(config) = ws_config { |
| 1012 | let mode = config.mode.unwrap_or(self.state.config.general.mode); |
| 1013 | self.set_wallpaper_from_source(&config.source, mode, false)?; |
| 1014 | } |
| 1015 | |
| 1016 | Ok(()) |
| 1017 | } |
| 1018 | |
| 1019 | /// Reload configuration |
| 1020 | fn reload_config(&mut self) -> Result<()> { |
| 1021 | let config = Config::load_default()?; |
| 1022 | |
| 1023 | // Update slideshow interval from new config |
| 1024 | self.state.slideshow_interval = config.default.slideshow |
| 1025 | .as_ref() |
| 1026 | .filter(|s| s.enabled) |
| 1027 | .map(|s| s.interval); |
| 1028 | |
| 1029 | self.state.config = config; |
| 1030 | tracing::info!("Configuration reloaded"); |
| 1031 | |
| 1032 | // Re-apply default wallpaper |
| 1033 | self.apply_default_wallpaper()?; |
| 1034 | |
| 1035 | Ok(()) |
| 1036 | } |
| 1037 | |
| 1038 | /// Get current status as JSON |
| 1039 | fn get_status(&self) -> serde_json::Value { |
| 1040 | let playlist_info = self.state.playlist.as_ref().map(|p| { |
| 1041 | serde_json::json!({ |
| 1042 | "source": p.source, |
| 1043 | "current_index": p.current_index, |
| 1044 | "total": p.len(), |
| 1045 | "current_image": p.current(), |
| 1046 | "shuffled": p.shuffled, |
| 1047 | "mode": format!("{}", p.mode), |
| 1048 | }) |
| 1049 | }); |
| 1050 | |
| 1051 | let interval_secs = self.state.slideshow_interval.map(|d| d.as_secs()); |
| 1052 | |
| 1053 | serde_json::json!({ |
| 1054 | "workspace": self.state.current_workspace, |
| 1055 | "paused": self.state.paused, |
| 1056 | "interval_secs": interval_secs, |
| 1057 | "playlist": playlist_info, |
| 1058 | }) |
| 1059 | } |
| 1060 | |
| 1061 | /// List images from a source |
| 1062 | fn list_source(&self, source: &str) -> Result<Vec<String>> { |
| 1063 | let expanded = shellexpand::tilde(source); |
| 1064 | self.list_local_directory(&expanded) |
| 1065 | } |
| 1066 | |
| 1067 | /// List images in a local directory |
| 1068 | fn list_local_directory(&self, path: &str) -> Result<Vec<String>> { |
| 1069 | let dir_path = std::path::Path::new(path); |
| 1070 | |
| 1071 | if dir_path.is_file() { |
| 1072 | return Ok(vec![path.to_string()]); |
| 1073 | } |
| 1074 | |
| 1075 | if !dir_path.is_dir() { |
| 1076 | anyhow::bail!("Path is not a file or directory: {}", path); |
| 1077 | } |
| 1078 | |
| 1079 | let mut images = Vec::new(); |
| 1080 | for entry in std::fs::read_dir(dir_path)? { |
| 1081 | let entry = entry?; |
| 1082 | let entry_path = entry.path(); |
| 1083 | if entry_path.is_file() && ImageLoader::is_supported_format(&entry_path) { |
| 1084 | images.push(entry_path.to_string_lossy().to_string()); |
| 1085 | } |
| 1086 | } |
| 1087 | |
| 1088 | images.sort(); |
| 1089 | Ok(images) |
| 1090 | } |
| 1091 | } |
| 1092 | |
| 1093 | /// RAII guard for PID file cleanup |
| 1094 | /// |
| 1095 | /// Removes the PID file when dropped, ensuring cleanup even on panic. |
| 1096 | struct PidFileGuard; |
| 1097 | |
| 1098 | impl Drop for PidFileGuard { |
| 1099 | fn drop(&mut self) { |
| 1100 | if let Err(e) = pid::remove_pid_file() { |
| 1101 | tracing::warn!("Failed to remove PID file on shutdown: {}", e); |
| 1102 | } else { |
| 1103 | tracing::debug!("PID file removed on shutdown"); |
| 1104 | } |
| 1105 | } |
| 1106 | } |
| 1107 |