Enhance image fetching logic to load existing images from images.json and skip downloading if already present. This improves efficiency by avoiding redundant downloads.

fetchImages.js

@@ -32,6 +32,13 @@ async function getAlbumAssets() {
             fs.mkdirSync(config.outputDir, { recursive: true });
         }
 
+        // Load existing images.json if it exists
+        let existingImages = [];
+        const imagesJsonPath = './images.json';
+        if (fs.existsSync(imagesJsonPath)) {
+            existingImages = JSON.parse(fs.readFileSync(imagesJsonPath, 'utf8'));
+        }
+
         const url = `${config.baseUrl}/api/albums/${config.albumId}`;
         console.log('Fetching album data from:', url);
         
@@ -53,6 +60,15 @@ async function getAlbumAssets() {
         for (const asset of response.data.assets) {
             const originalUrl = `${config.baseUrl}/api/assets/${asset.id}/original`;
             const fileName = `${asset.id}_${asset.originalFileName || 'untitled'}`;
+            const outputPath = path.join(config.outputDir, fileName);
+            
+            // Check if file already exists and is in our metadata
+            const existingImage = existingImages.find(img => img.id === asset.id);
+            if (existingImage && fs.existsSync(existingImage.localPath)) {
+                console.log(`Skipping existing file: ${fileName}`);
+                images.push(existingImage);
+                continue;
+            }
             
             console.log(`Downloading: ${fileName}`);