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

backend/src/utils/read/pinned.py

@@ -0,0 +1,32 @@
+import asyncpg
+
+from utils.read.message_view import _media_kind, _peer_name, load_raw
+from utils.read.models import PinnedView
+
+_PINNED_SQL = (
+    "SELECT raw FROM messages "
+    "WHERE account_id = $1 AND chat_id = $2 "
+    "AND raw->>'service' LIKE '%PINNED_MESSAGE%' "
+    "ORDER BY date DESC, message_id DESC LIMIT 1"
+)
+
+
+async def get_pinned(
+    pool: asyncpg.Pool, account_id: int, chat_id: int
+) -> PinnedView | None:
+    row = await pool.fetchrow(_PINNED_SQL, account_id, chat_id)
+    if row is None:
+        return None
+    pinned = load_raw(row["raw"]).get("pinned_message")
+    if not isinstance(pinned, dict):
+        return None
+    message_id = pinned.get("id")
+    if message_id is None:
+        return None
+    sender = pinned.get("from_user")
+    return PinnedView(
+        message_id=message_id,
+        text=pinned.get("text") or pinned.get("caption"),
+        media_kind=_media_kind(pinned),
+        sender_name=_peer_name(sender) if isinstance(sender, dict) else None,
+    )