Commit 1194acf

@@ -10,7 +10,7 @@ import re
 from datetime import UTC, datetime, timedelta
 from zoneinfo import ZoneInfo
 
-from glom import glom
+from glom import Coalesce, glom
 from loguru import logger
 from pyrogram.parser.markdown import BLOCKQUOTE_EXPANDABLE_DELIM
 
@@ -166,3 +166,17 @@ async def get_youtube_vinfo(video_id: str) -> dict:
         logger.error(f"Failed to get video info: {e}")
         return {"downloadable": False, "error_msg": "❌无法获取此视频信息"}
     return info | {"emoji": "🔴"}
+
+
+async def get_youtube_channel_thumb(channel_id: str) -> str:
+    """Get YouTube channel thumbnail url."""
+    if not channel_id:
+        return ""
+    api = "https://www.googleapis.com/youtube/v3/channels"
+    params = {"key": TOKEN.YOUTUBE_API_KEY, "part": "snippet", "id": channel_id, "hl": "zh-CN"}
+    resp = await hx_req(api, proxy=PROXY.GOOGLE_SEARCH, params=params, check_keys=["items.0.snippet"], max_retry=3)
+    if resp.get("hx_error"):
+        logger.warning(f"YouTube Channels API failed: {resp['hx_error']}")
+        return ""
+    thumbnails = glom(resp, "items.0.snippet.thumbnails", default={})
+    return glom(thumbnails, Coalesce("high.url", "medium.url", "default.url"), default="")