feat: web UI chat render, panels, presence + analytics

backend/src/userbot/modules/jobs/handlers/fetch_custom_emoji.py

@@ -0,0 +1,45 @@
+from io import BytesIO
+
+from pyrogram.types import Sticker
+
+from userbot.modules.custom_emoji.repository import is_downloaded, upsert_downloaded
+from userbot.modules.jobs.context import JobContext
+from userbot.modules.jobs.registry import register
+
+
+def _kind(sticker: Sticker) -> str:
+    if sticker.is_animated:
+        return "animated"
+    if sticker.is_video:
+        return "video"
+    return "static"
+
+
+@register("fetch_custom_emoji")
+async def fetch_custom_emoji(ctx: JobContext) -> None:
+    client = ctx.client
+    if client is None:
+        return
+    capture = getattr(client, "capture", None)
+    if capture is None:
+        return
+    custom_emoji_id = int(ctx.job.params["custom_emoji_id"])
+    if await is_downloaded(ctx.pool, custom_emoji_id):
+        return
+    stickers = await client.get_custom_emoji_stickers([str(custom_emoji_id)])
+    if not stickers:
+        return
+    sticker = stickers[0]
+    buffer = await client.download_media(sticker.file_id, in_memory=True)
+    if not isinstance(buffer, BytesIO):
+        return
+    data = buffer.getvalue()
+    storage_key = capture.storage.put(data)
+    await upsert_downloaded(
+        ctx.pool,
+        custom_emoji_id,
+        storage_key,
+        len(data),
+        sticker.mime_type,
+        _kind(sticker),
+    )