improved Modal with zoom and pagination. also implementing thumbnail generation

image_import_worker.py

@@ -1,9 +1,10 @@
-# image_import_loop.py
+# image_import_worker.py
 import time
 import os
 from app import create_app
 from app.utils.image_importer import import_images_task
 
+THUMBNAIL_FLAG = "/import/thumbnail.flag"
 TRIGGER_FLAG = "/import/trigger.flag"
 SOURCE_DIR = "/import"
 DEST_DIR = "/images"
@@ -29,8 +30,29 @@ def monitor_and_import():
                         print("[Image Importer] Trigger flag cleared.")
                     except Exception as e:
                         print(f"[Image Importer] Failed to remove trigger flag: {e}")
-            else:
-                print("[Image Importer] No trigger flag. Sleeping...")
+
+            # Thumbnail generation Check
+            if os.path.exists(THUMBNAIL_FLAG):
+                print("[Image Importer] Thumbnail regeneration triggered.")
+                try:
+                    from app.models import ImageRecord
+                    from app.utils.image_importer import generate_thumbnail
+
+                    for img in ImageRecord.query.all():
+                        try:
+                            generate_thumbnail(img.filepath, overwrite=True)
+                            print(f"[Thumbnail] Regenerated for {img.filename}")
+                        except Exception as e:
+                            print(f"[Thumbnail] Failed for {img.filename}: {e}")
+                except Exception as e:
+                    print(f"[Image Importer] Error during thumbnail regeneration: {e}")
+                finally:
+                    try:
+                        os.remove(THUMBNAIL_FLAG)
+                        print("[Image Importer] Thumbnail flag cleared.")
+                    except Exception as e:
+                        print(f"[Image Importer] Failed to remove thumbnail flag: {e}")
+
 
             time.sleep(CHECK_INTERVAL)