optimization: image size

api/ovdashboard_api/routers/v1/image.py

@@ -63,13 +63,23 @@ async def find_images_by_prefix(
     response_class=StreamingResponse,
 )
 async def get_image_by_prefix(
+    cfg: Config = Depends(get_config),
     remote_path: str = Depends(RP_IMAGE),
     name: str = Depends(LM_IMAGE.getter.func),
 ) -> StreamingResponse:
-    cfg = await get_config()
     img = Image.open(BytesIO(await WebDAV.read_bytes(f"{remote_path}/{name}")))
 
     img_buffer = BytesIO()
+
+    width, height = img.size
+    target_height = cfg.image.height
+    target_width = int(width * target_height / height)
+
+    img = img.resize(
+        size=(target_width, target_height),
+        resample=Image.LANCZOS,
+    )
+
     img.save(img_buffer, **cfg.image.save_params)
     img_buffer.seek(0)