"""
Edge 设备兼容路由

Edge 设备使用 /api/ai/alert/edge/report 和 /api/ai/alert/edge/resolve 路径上报告警，
该路径与 WVP 端点一致。本模块提供相同路径的路由，无需认证，
使 Edge 设备可以直接上报到 FastAPI 服务。
"""

import asyncio
from datetime import datetime
from fastapi import APIRouter, Depends
from typing import Optional

from app.yudao_compat import YudaoResponse
from app.services.alarm_event_service import get_alarm_event_service, AlarmEventService
from app.services.notification_service import get_notification_service
from app.schemas import EdgeAlarmReport, EdgeAlarmResolve
from app.utils.logger import logger

router = APIRouter(prefix="/api/ai/alert", tags=["Edge-兼容路由"])


@router.post("/edge/report")
async def edge_alarm_report(
    report: EdgeAlarmReport,
    service: AlarmEventService = Depends(get_alarm_event_service),
):
    """
    Edge 告警上报（无认证）

    与 /admin-api/aiot/alarm/edge/report 功能相同，
    但不要求认证，供 Edge 设备直接调用。
    """
    alarm = service.create_from_edge_report(report.model_dump())

    if alarm is None:
        return YudaoResponse.error(500, "告警创建失败")

    # WebSocket 通知
    try:
        notification_svc = get_notification_service()
        notification_svc.notify_sync("new_alert", alarm.to_dict())
    except Exception:
        pass

    # 异步触发 VLM 复核 + 企微通知（不阻塞响应）
    try:
        from app.services.notify_dispatch import process_alarm_notification
        notify_data = {
            "alarm_id": alarm.alarm_id,
            "alarm_type": alarm.alarm_type,
            "device_id": alarm.device_id,
            "scene_id": alarm.scene_id,
            "event_time": alarm.event_time,
            "alarm_level": alarm.alarm_level,
            "snapshot_url": alarm.snapshot_url,
        }
        asyncio.create_task(process_alarm_notification(notify_data))
    except Exception as e:
        logger.error(f"触发告警通知失败: {e}", exc_info=True)

    return YudaoResponse.success({
        "alarmId": alarm.alarm_id,
        "created": True,
    })


@router.post("/edge/resolve")
async def edge_alarm_resolve(
    resolve: EdgeAlarmResolve,
    service: AlarmEventService = Depends(get_alarm_event_service),
):
    """
    Edge 告警结束通知（无认证）

    与 /admin-api/aiot/alarm/edge/resolve 功能相同，
    但不要求认证，供 Edge 设备直接调用。
    支持先到先得：已被人工处理的告警不覆盖状态。
    """
    # 先检查是否已到终态（先到先得）
    was_terminal = service.is_alarm_terminal(resolve.alarm_id)

    success = service.resolve_alarm(
        alarm_id=resolve.alarm_id,
        duration_ms=resolve.duration_ms,
        last_frame_time=resolve.last_frame_time,
        resolve_type=resolve.resolve_type,
    )
    if not success:
        return YudaoResponse.error(404, "告警不存在")

    # 如果之前不是终态（边缘端先到），触发自动结单 + 卡片更新
    if not was_terminal:
        asyncio.create_task(_resolve_work_order_and_card(resolve.alarm_id, resolve.resolve_type))

    return YudaoResponse.success(True)


async def _resolve_work_order_and_card(alarm_id: str, resolve_type: str):
    """边缘端 resolve 后异步处理：更新卡片 + 自动结单"""
    try:
        from app.services.work_order_client import get_work_order_client
        from app.services.wechat_service import get_wechat_service
        from app.models import get_session, AlarmEventExt

        # 1. 自动结单
        wo_client = get_work_order_client()
        if wo_client.enabled:
            db = get_session()
            try:
                ext = db.query(AlarmEventExt).filter(
                    AlarmEventExt.alarm_id == alarm_id,
                    AlarmEventExt.ext_type == "WORK_ORDER",
                ).first()
                order_id = ext.ext_data.get("order_id", "") if ext and ext.ext_data else ""
            finally:
                db.close()

            if order_id:
                remark_map = {
                    "person_returned": "人员回岗自动关闭",
                    "non_work_time": "非工作时间自动关闭",
                    "intrusion_cleared": "入侵消失自动关闭",
                }
                remark = remark_map.get(resolve_type, f"边缘端自动结单: {resolve_type}")
                await wo_client.auto_complete_order(order_id, remark)

        # 2. 更新企微卡片到终态（如果有 response_code）
        wechat = get_wechat_service()
        if wechat.enabled:
            response_code = wechat.get_response_code(alarm_id)
            if response_code:
                await wechat.update_alarm_card_terminal(
                    response_code=response_code,
                    user_ids=[],  # 空列表时企微更新所有已收到卡片的用户
                    alarm_id=alarm_id,
                    action="auto_resolve",
                )

    except Exception as e:
        logger.error(f"边缘端resolve后处理失败: alarm={alarm_id}, error={e}", exc_info=True)