Implement legal terms, Android client compatibility and more

backend/services/main/routes/public_chat.py

@@ -0,0 +1,31 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from ..dependencies import get_current_user_allow_suspended, get_db
+from ..models import PublicChatProfileResponse, User
+from ..public_chat_config import load_public_chat_static_profile
+
+router = APIRouter()
+
+
+@router.get("/public-chat/profile", response_model=PublicChatProfileResponse)
+def get_public_chat_profile(
+    current_user: User = Depends(get_current_user_allow_suspended),
+    db: Session = Depends(get_db),
+):
+    """Metadata for the instance public chat (title, bio, member count)."""
+    del current_user
+    try:
+        static_profile = load_public_chat_static_profile()
+    except (FileNotFoundError, ValueError, OSError) as exc:
+        raise HTTPException(status_code=500, detail="Public chat profile is not configured") from exc
+
+    member_count = db.query(User).filter(User.deleted.is_(False)).count()
+    bio = static_profile["bio"].strip() or None
+
+    return PublicChatProfileResponse(
+        id=static_profile["id"],
+        title=static_profile["title"],
+        bio=bio,
+        member_count=member_count,
+    )