Add fetch metadata from civitai

services/civitai_client.py

@@ -0,0 +1,35 @@
+import aiohttp
+import os
+import json
+from typing import Optional, Dict
+
+class CivitaiClient:
+    def __init__(self):
+        self.base_url = "https://civitai.com/api/v1"
+        self.session = aiohttp.ClientSession()
+        
+    async def get_model_by_hash(self, model_hash: str) -> Optional[Dict]:
+        try:
+            async with self.session.get(f"{self.base_url}/model-versions/by-hash/{model_hash}") as response:
+                if response.status == 200:
+                    return await response.json()
+                return None
+        except Exception as e:
+            print(f"API Error: {str(e)}")
+            return None
+
+    async def download_preview_image(self, image_url: str, save_path: str):
+        try:
+            async with self.session.get(image_url) as response:
+                if response.status == 200:
+                    content = await response.read()
+                    with open(save_path, 'wb') as f:
+                        f.write(content)
+                    return True
+                return False
+        except Exception as e:
+            print(f"Download Error: {str(e)}")
+            return False
+            
+    async def close(self):
+        await self.session.close()