127 lines
4.0 KiB
Python
127 lines
4.0 KiB
Python
"""Message API routes"""
|
|
import json
|
|
import uuid
|
|
from datetime import datetime, timezone
|
|
from flask import Blueprint, request, g
|
|
from backend import db
|
|
from backend.models import Conversation, Message
|
|
from backend.utils.helpers import ok, err, message_to_dict
|
|
from backend.services.chat import ChatService
|
|
|
|
bp = Blueprint("messages", __name__)
|
|
|
|
# ChatService will be injected during registration
|
|
_chat_service = None
|
|
|
|
|
|
def init_chat_service(glm_client):
|
|
"""Initialize chat service with GLM client"""
|
|
global _chat_service
|
|
_chat_service = ChatService(glm_client)
|
|
|
|
|
|
def _get_conv(conv_id):
|
|
"""Get conversation with ownership check."""
|
|
conv = db.session.get(Conversation, conv_id)
|
|
if not conv or conv.user_id != g.current_user.id:
|
|
return None
|
|
return conv
|
|
|
|
|
|
@bp.route("/api/conversations/<conv_id>/messages", methods=["GET", "POST"])
|
|
def message_list(conv_id):
|
|
"""List or create messages"""
|
|
conv = _get_conv(conv_id)
|
|
if not conv:
|
|
return err(404, "conversation not found")
|
|
|
|
if request.method == "GET":
|
|
cursor = request.args.get("cursor")
|
|
limit = min(int(request.args.get("limit", 50)), 100)
|
|
q = Message.query.filter_by(conversation_id=conv_id)
|
|
if cursor:
|
|
q = q.filter(Message.created_at < (
|
|
db.session.query(Message.created_at).filter_by(id=cursor).scalar() or datetime.now(timezone.utc)))
|
|
rows = q.order_by(Message.created_at.asc()).limit(limit + 1).all()
|
|
|
|
items = [message_to_dict(r) for r in rows[:limit]]
|
|
return ok({
|
|
"items": items,
|
|
"next_cursor": items[-1]["id"] if len(rows) > limit else None,
|
|
"has_more": len(rows) > limit,
|
|
})
|
|
|
|
# POST - create message and get AI response
|
|
d = request.json or {}
|
|
text = (d.get("text") or "").strip()
|
|
attachments = d.get("attachments") # [{"name": "a.py", "extension": "py", "content": "..."}]
|
|
|
|
if not text and not attachments:
|
|
return err(400, "text or attachments is required")
|
|
|
|
# Build content JSON structure
|
|
content_json = {"text": text}
|
|
if attachments:
|
|
content_json["attachments"] = attachments
|
|
|
|
user_msg = Message(
|
|
id=str(uuid.uuid4()),
|
|
conversation_id=conv_id,
|
|
role="user",
|
|
content=json.dumps(content_json, ensure_ascii=False),
|
|
)
|
|
db.session.add(user_msg)
|
|
db.session.commit()
|
|
|
|
tools_enabled = d.get("tools_enabled", True)
|
|
project_id = d.get("project_id") or conv.project_id
|
|
|
|
return _chat_service.stream_response(conv, tools_enabled, project_id)
|
|
|
|
|
|
@bp.route("/api/conversations/<conv_id>/messages/<msg_id>", methods=["DELETE"])
|
|
def delete_message(conv_id, msg_id):
|
|
"""Delete a message"""
|
|
conv = _get_conv(conv_id)
|
|
if not conv:
|
|
return err(404, "conversation not found")
|
|
if msg_id.startswith("temp_"):
|
|
return ok(message="deleted")
|
|
msg = db.session.get(Message, msg_id)
|
|
if not msg or msg.conversation_id != conv_id:
|
|
return err(404, "message not found")
|
|
db.session.delete(msg)
|
|
db.session.commit()
|
|
return ok(message="deleted")
|
|
|
|
|
|
@bp.route("/api/conversations/<conv_id>/regenerate/<msg_id>", methods=["POST"])
|
|
def regenerate_message(conv_id, msg_id):
|
|
"""Regenerate an assistant message"""
|
|
conv = _get_conv(conv_id)
|
|
if not conv:
|
|
return err(404, "conversation not found")
|
|
|
|
# 获取要重新生成的消息
|
|
msg = db.session.get(Message, msg_id)
|
|
if not msg or msg.conversation_id != conv_id:
|
|
return err(404, "message not found")
|
|
|
|
if msg.role != "assistant":
|
|
return err(400, "can only regenerate assistant messages")
|
|
|
|
# 删除该消息及其后面的所有消息
|
|
Message.query.filter(
|
|
Message.conversation_id == conv_id,
|
|
Message.created_at >= msg.created_at
|
|
).delete(synchronize_session=False)
|
|
db.session.commit()
|
|
|
|
# 获取工具启用状态
|
|
d = request.json or {}
|
|
tools_enabled = d.get("tools_enabled", True)
|
|
project_id = d.get("project_id") or conv.project_id
|
|
|
|
# 流式重新生成
|
|
return _chat_service.stream_response(conv, tools_enabled, project_id)
|