SurfSense/surfsense_backend/app/services/comments_service.py

146 lines
4.7 KiB
Python

"""
Service layer for chat comments and mentions.
"""
from fastapi import HTTPException
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.orm import selectinload
from app.db import (
ChatComment,
NewChatMessage,
Permission,
User,
has_permission,
)
from app.schemas.comments import (
AuthorResponse,
CommentListResponse,
CommentReplyResponse,
CommentResponse,
)
from app.utils.rbac import check_permission, get_user_permissions
async def get_comments_for_message(
session: AsyncSession,
message_id: int,
user: User,
) -> CommentListResponse:
"""
Get all comments for a message with their replies.
Args:
session: Database session
message_id: ID of the message to get comments for
user: The current authenticated user
Returns:
CommentListResponse with all top-level comments and their replies
Raises:
HTTPException: If message not found or user lacks permission
"""
# Get the message with its thread to find search_space_id
result = await session.execute(
select(NewChatMessage)
.options(selectinload(NewChatMessage.thread))
.filter(NewChatMessage.id == message_id)
)
message = result.scalars().first()
if not message:
raise HTTPException(status_code=404, detail="Message not found")
search_space_id = message.thread.search_space_id
# Check permission to read comments
await check_permission(
session,
user,
search_space_id,
Permission.COMMENTS_READ.value,
"You don't have permission to read comments in this search space",
)
# Get user permissions for can_delete computation
user_permissions = await get_user_permissions(session, user.id, search_space_id)
can_delete_any = has_permission(user_permissions, Permission.COMMENTS_DELETE.value)
# Get top-level comments (parent_id IS NULL) with their authors and replies
result = await session.execute(
select(ChatComment)
.options(
selectinload(ChatComment.author),
selectinload(ChatComment.replies).selectinload(ChatComment.author),
)
.filter(
ChatComment.message_id == message_id,
ChatComment.parent_id.is_(None),
)
.order_by(ChatComment.created_at)
)
top_level_comments = result.scalars().all()
comments = []
for comment in top_level_comments:
# Build author response
author = None
if comment.author:
author = AuthorResponse(
id=comment.author.id,
display_name=comment.author.display_name,
avatar_url=comment.author.avatar_url,
email=comment.author.email,
)
# Build replies
replies = []
for reply in sorted(comment.replies, key=lambda r: r.created_at):
reply_author = None
if reply.author:
reply_author = AuthorResponse(
id=reply.author.id,
display_name=reply.author.display_name,
avatar_url=reply.author.avatar_url,
email=reply.author.email,
)
is_reply_author = reply.author_id == user.id if reply.author_id else False
replies.append(
CommentReplyResponse(
id=reply.id,
content=reply.content,
content_rendered=reply.content, # TODO: render mentions in Phase 3
author=reply_author,
created_at=reply.created_at,
updated_at=reply.updated_at,
is_edited=reply.updated_at > reply.created_at,
can_edit=is_reply_author,
can_delete=is_reply_author or can_delete_any,
)
)
is_comment_author = comment.author_id == user.id if comment.author_id else False
comments.append(
CommentResponse(
id=comment.id,
message_id=comment.message_id,
content=comment.content,
content_rendered=comment.content, # TODO: render mentions in Phase 3
author=author,
created_at=comment.created_at,
updated_at=comment.updated_at,
is_edited=comment.updated_at > comment.created_at,
can_edit=is_comment_author,
can_delete=is_comment_author or can_delete_any,
reply_count=len(replies),
replies=replies,
)
)
return CommentListResponse(
comments=comments,
total_count=len(comments),
)