"""
通讯API路由
"""

from fastapi import APIRouter, HTTPException
from pydantic import BaseModel
from typing import List
import uuid
from datetime import datetime

from ...core import EntityInfo, Message, RedisAdapter

router = APIRouter()

# 全局存储（生产环境应使用数据库）
entities: dict[str, EntityInfo] = {}
adapters: dict[str, RedisAdapter] = {}


class EntityCreate(BaseModel):
    name: str
    redis_host: str = "localhost"
    redis_port: int = 6379
    redis_db: int = 0


class MessageSend(BaseModel):
    sender_id: str
    receiver_id: str
    content: str


class MessageResponse(BaseModel):
    sender_id: str
    receiver_id: str
    timestamp: str
    content: str


@router.post("/entities", response_model=dict)
async def create_entity(entity: EntityCreate):
    """创建新实体"""
    entity_id = str(uuid.uuid4())
    channel = entity_id
    
    entity_info = EntityInfo(
        id=entity_id,
        name=entity.name,
        redis_host=entity.redis_host,
        redis_port=entity.redis_port,
        redis_db=entity.redis_db,
        channel=channel
    )
    
    entities[entity_id] = entity_info
    
    return {
        "id": entity_id,
        "name": entity.name,
        "status": "created"
    }


@router.get("/entities", response_model=List[dict])
async def list_entities():
    """获取所有实体列表"""
    return [
        {
            "id": entity_id,
            "name": entity.name,
            "redis_host": entity.redis_host,
            "redis_port": entity.redis_port,
            "redis_db": entity.redis_db
        }
        for entity_id, entity in entities.items()
    ]


@router.post("/entities/{entity_id}/start")
async def start_entity(entity_id: str):
    """启动实体通讯"""
    if entity_id not in entities:
        raise HTTPException(status_code=404, detail="Entity not found")
    
    if entity_id in adapters:
        raise HTTPException(status_code=400, detail="Entity already started")
    
    adapter = RedisAdapter(entities[entity_id])
    if adapter.start():
        adapters[entity_id] = adapter
        return {"status": "started"}
    else:
        raise HTTPException(status_code=500, detail="Failed to start entity")


@router.post("/entities/{entity_id}/stop")
async def stop_entity(entity_id: str):
    """停止实体通讯"""
    if entity_id not in adapters:
        raise HTTPException(status_code=404, detail="Entity not started")
    
    adapters[entity_id].stop()
    del adapters[entity_id]
    
    return {"status": "stopped"}


@router.post("/messages/send")
async def send_message(message: MessageSend):
    """发送消息"""
    if message.sender_id not in adapters:
        raise HTTPException(status_code=404, detail="Sender not started")
    
    if message.receiver_id not in entities:
        raise HTTPException(status_code=404, detail="Receiver not found")
    
    adapter = adapters[message.sender_id]
    success = adapter.send_message(message.receiver_id, message.content)
    
    if success:
        return {"status": "sent"}
    else:
        raise HTTPException(status_code=500, detail="Failed to send message")


@router.get("/entities/{entity_id}/messages", response_model=List[MessageResponse])
async def get_entity_messages(entity_id: str):
    """获取实体的消息历史（临时存储，演示用）"""
    # 这里只是示例，实际应该从持久化存储获取
    return []