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

backend/src/utils/read/media.py

@@ -1,5 +1,6 @@
 import asyncpg
 
+from utils.read.message_view import load_raw
 from utils.read.models import MediaVersionView, MediaView
 
 _MEDIA_COLS = (
@@ -9,6 +10,45 @@ _MEDIA_COLS = (
 
 _VERSION_COLS = "id, kind, storage_key, file_size, mime, observed_at"
 
+_WEB_PAGE_MEDIA_KINDS = ("photo", "video", "animation", "document", "audio")
+
+
+async def _web_page_media_stub(
+    pool: asyncpg.Pool, account_id: int, chat_id: int, message_id: int
+) -> MediaView | None:
+    row = await pool.fetchrow(
+        "SELECT date, raw FROM messages "
+        "WHERE account_id = $1 AND chat_id = $2 AND message_id = $3",
+        account_id,
+        chat_id,
+        message_id,
+    )
+    if row is None:
+        return None
+    web_page = load_raw(row["raw"]).get("web_page")
+    if not isinstance(web_page, dict):
+        return None
+    kind = next(
+        (k for k in _WEB_PAGE_MEDIA_KINDS if isinstance(web_page.get(k), dict)), None
+    )
+    if kind is None:
+        return None
+    obj = web_page[kind]
+    return MediaView(
+        id=0,
+        account_id=account_id,
+        chat_id=chat_id,
+        message_id=message_id,
+        kind=kind,
+        storage_key=None,
+        file_size=obj.get("file_size"),
+        mime=obj.get("mime_type"),
+        ttl_seconds=None,
+        downloaded=False,
+        extracted_text=None,
+        created_at=row["date"],
+    )
+
 
 async def get_media(pool: asyncpg.Pool, media_id: int) -> MediaView | None:
     row = await pool.fetchrow(
@@ -28,7 +68,9 @@ async def get_message_media(
         chat_id,
         message_id,
     )
-    return MediaView(**dict(row)) if row else None
+    if row is not None:
+        return MediaView(**dict(row))
+    return await _web_page_media_stub(pool, account_id, chat_id, message_id)
 
 
 async def get_media_versions(