feat: improve media type detection and scanning functionality

- Enhanced media type detection by normalizing file extensions to handle case variations for videos and photos.
- Updated the scanning process to accommodate different case formats for video and photo file extensions, improving accuracy in file recognition.
- Refactored related code for better readability and maintainability.

src/app/api/files/route.ts

@@ -31,9 +31,10 @@ export async function GET(request: Request) {
       const ext = path.extname(file).toLowerCase();
       
       let type = 'file';
-      if (VIDEO_EXTENSIONS.some(v => ext.includes(v))) {
+      const cleanExt = ext.replace('.', '').toLowerCase();
+      if (VIDEO_EXTENSIONS.some(v => v.toLowerCase() === cleanExt)) {
         type = 'video';
-      } else if (PHOTO_EXTENSIONS.some(p => ext.includes(p))) {
+      } else if (PHOTO_EXTENSIONS.some(p => p.toLowerCase() === cleanExt)) {
         type = 'photo';
       }
 

src/lib/scanner.ts

@@ -34,15 +34,19 @@ const generatePhotoThumbnail = (photoPath: string, thumbnailPath: string) => {
 };
 
 const scanLibrary = async (library: { id: number; path: string }) => {
-  // Scan videos
-  const videoFiles = await glob(`${library.path}/**/*.{${VIDEO_EXTENSIONS.join(",")}}`, {
-    nodir: true,
-  });
+  // Scan videos - handle case variations
+  const videoPatterns = VIDEO_EXTENSIONS.flatMap(ext => [
+    `${library.path}/**/*.${ext}`,
+    `${library.path}/**/*.${ext.toUpperCase()}`,
+  ]);
+  const videoFiles = await glob(videoPatterns, { nodir: true });
 
-  // Scan photos
-  const photoFiles = await glob(`${library.path}/**/*.{${PHOTO_EXTENSIONS.join(",")}}`, {
-    nodir: true,
-  });
+  // Scan photos - handle case variations
+  const photoPatterns = PHOTO_EXTENSIONS.flatMap(ext => [
+    `${library.path}/**/*.${ext}`,
+    `${library.path}/**/*.${ext.toUpperCase()}`,
+  ]);
+  const photoFiles = await glob(photoPatterns, { nodir: true });
 
   const allFiles = [...videoFiles, ...photoFiles];
 
@@ -50,8 +54,9 @@ const scanLibrary = async (library: { id: number; path: string }) => {
     const stats = fs.statSync(file);
     const title = path.basename(file);
     const ext = path.extname(file).toLowerCase();
-    const isVideo = VIDEO_EXTENSIONS.some(v => ext.includes(v));
-    const isPhoto = PHOTO_EXTENSIONS.some(p => ext.includes(p));
+    const cleanExt = ext.replace('.', '').toLowerCase();
+    const isVideo = VIDEO_EXTENSIONS.some(v => v.toLowerCase() === cleanExt);
+    const isPhoto = PHOTO_EXTENSIONS.some(p => p.toLowerCase() === cleanExt);
     
     const mediaType = isVideo ? "video" : "photo";
     const thumbnailFileName = `${path.parse(title).name}_${Date.now()}.png`;