pinakes-core: improve media management features; various configuration improvements

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I2d1f04f13970d21c36067f30bc04a9176a6a6964

crates/pinakes-core/src/thumbnail.rs

@@ -367,7 +367,14 @@ pub fn extract_epub_cover(epub_path: &Path) -> Result<Option<Vec<u8>>> {
     }
 
     // Fallback: look for common cover image filenames
-    let cover_names = ["cover.jpg", "cover.jpeg", "cover.png", "Cover.jpg", "Cover.jpeg", "Cover.png"];
+    let cover_names = [
+        "cover.jpg",
+        "cover.jpeg",
+        "cover.png",
+        "Cover.jpg",
+        "Cover.jpeg",
+        "Cover.png",
+    ];
     for name in &cover_names {
         if let Some(data) = doc.get_resource_by_path(name) {
             return Ok(Some(data));
@@ -423,3 +430,72 @@ pub fn default_covers_dir() -> PathBuf {
 pub fn default_thumbnail_dir() -> PathBuf {
     crate::config::Config::default_data_dir().join("thumbnails")
 }
+
+/// Thumbnail size variant for multi-resolution support
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ThumbnailSize {
+    /// Tiny thumbnail for map markers and icons (64x64)
+    Tiny,
+    /// Grid thumbnail for library grid view (320x320)
+    Grid,
+    /// Preview thumbnail for quick fullscreen preview (1024x1024)
+    Preview,
+}
+
+impl ThumbnailSize {
+    /// Get the pixel size for this thumbnail variant
+    pub fn pixels(&self) -> u32 {
+        match self {
+            ThumbnailSize::Tiny => 64,
+            ThumbnailSize::Grid => 320,
+            ThumbnailSize::Preview => 1024,
+        }
+    }
+
+    /// Get the subdirectory name for this size
+    pub fn subdir_name(&self) -> &'static str {
+        match self {
+            ThumbnailSize::Tiny => "tiny",
+            ThumbnailSize::Grid => "grid",
+            ThumbnailSize::Preview => "preview",
+        }
+    }
+}
+
+/// Generate all thumbnail sizes for a media file
+/// Returns paths to the generated thumbnails (tiny, grid, preview)
+pub fn generate_all_thumbnail_sizes(
+    media_id: MediaId,
+    source_path: &Path,
+    media_type: MediaType,
+    thumbnail_base_dir: &Path,
+) -> Result<(Option<PathBuf>, Option<PathBuf>, Option<PathBuf>)> {
+    let sizes = [
+        ThumbnailSize::Tiny,
+        ThumbnailSize::Grid,
+        ThumbnailSize::Preview,
+    ];
+    let mut results = Vec::new();
+
+    for size in &sizes {
+        let size_dir = thumbnail_base_dir.join(size.subdir_name());
+        std::fs::create_dir_all(&size_dir)?;
+
+        let config = ThumbnailConfig {
+            size: size.pixels(),
+            ..ThumbnailConfig::default()
+        };
+
+        let result = generate_thumbnail_with_config(
+            media_id,
+            source_path,
+            media_type.clone(),
+            &size_dir,
+            &config,
+        )?;
+
+        results.push(result);
+    }
+
+    Ok((results[0].clone(), results[1].clone(), results[2].clone()))
+}