Files
ds-chat/backend/app/services/message_service.py
T
ksmithandClaude Sonnet 5 e9fcb9fea2 Rebuild frontend from the Claude Design handoff, DarkSingularity brand
Replaces the Phase 1 placeholder UI with a single persistent app shell (top
bar + sidebar + chat pane, 860px responsive breakpoint) matching the
"PWA chat system UI" design handoff: message bubbles with consecutive-run
avatar/name grouping, auto-growing composer, room search, and the real
DarkSingularity logo (also used to regenerate the PWA icons).

The handoff didn't cover Phase 2 (private rooms, roles, invites) or
browsing/joining open rooms, so those are added using the same visual
language: a room info panel with role badges, invite-by-username with a
pending-invites list, member management (remove/promote/demote/transfer
ownership), room settings (rename/describe/delete), and separate
browse-rooms/invites-inbox modals. Unread badges, last-message preview, and
the typing indicator are deliberately deferred -- both need new backend
features (read-tracking, a WS typing event) that weren't in scope this pass.

Two small backend additions round out data the new UI needs but the API
didn't expose: MessageRead.username (historic messages had no sender name)
and InviteRead.target_username / MyInviteRead.room_name+invited_by_username
(a recipient's invite list can't otherwise resolve a room they're not in).
Both are additive; 35 backend tests still pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-13 21:10:58 -06:00

33 lines
859 B
Python

import uuid
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.orm import selectinload
from app.models import Message
async def create_message(
db: AsyncSession, room_id: uuid.UUID, user_id: uuid.UUID, content: str
) -> Message:
message = Message(room_id=room_id, user_id=user_id, content=content)
db.add(message)
await db.commit()
await db.refresh(message)
return message
async def list_recent_messages(
db: AsyncSession, room_id: uuid.UUID, limit: int = 50
) -> list[Message]:
result = await db.execute(
select(Message)
.where(Message.room_id == room_id)
.options(selectinload(Message.user))
.order_by(Message.created_at.desc())
.limit(limit)
)
messages = list(result.scalars().all())
messages.reverse()
return messages