"""
企微回调路由

处理安保人员在企微卡片上的操作（前往处理/误报忽略）。
接收企微用户消息并路由到交互Agent。
"""

import asyncio
from fastapi import APIRouter, Depends, Query, Request
from fastapi.responses import PlainTextResponse

from app.yudao_compat import YudaoResponse
from app.services.alarm_event_service import get_alarm_event_service, AlarmEventService
from app.utils.logger import logger

router = APIRouter(prefix="/api/wechat", tags=["企微回调"])


# ==================== 交互Agent消息回调 ====================

@router.get("/agent/callback")
async def wechat_agent_verify(
    msg_signature: str = Query(...),
    timestamp: str = Query(...),
    nonce: str = Query(...),
    echostr: str = Query(...),
):
    """企微回调URL验证（首次配置时调用）"""
    from app.services.wechat_crypto import WeChatCrypto
    try:
        crypto = WeChatCrypto()
        echo = crypto.verify_url(msg_signature, timestamp, nonce, echostr)
        return PlainTextResponse(content=echo)
    except Exception as e:
        logger.error(f"企微URL验证失败: {e}")
        return PlainTextResponse(content="", status_code=403)


@router.post("/agent/callback")
async def wechat_agent_message(
    request: Request,
    msg_signature: str = Query(...),
    timestamp: str = Query(...),
    nonce: str = Query(...),
):
    """接收企微用户消息，路由到交互Agent"""
    body = await request.body()

    from app.services.wechat_crypto import WeChatCrypto
    try:
        crypto = WeChatCrypto()
        msg = crypto.decrypt_message(body, msg_signature, timestamp, nonce)
    except Exception as e:
        logger.error(f"企微消息解密失败: {e}")
        return PlainTextResponse(content="success")

    msg_type = msg.get("MsgType", "")
    event = msg.get("Event", "")

    # ---- 模板卡片按钮点击事件 ----
    if msg_type == "event" and event == "template_card_event":
        asyncio.create_task(_process_card_button_click(msg))
        return PlainTextResponse(content="success")

    # ---- 文本消息 → Agent 对话 ----
    if msg_type == "text":
        user_id = msg.get("FromUserName", "")
        content = msg.get("Content", "")
        logger.info(f"收到企微消息: user={user_id}, content={content[:50]}")
        asyncio.create_task(_process_agent_message(user_id, content))
        return PlainTextResponse(content="success")

    # ---- 图片消息 → Agent 图片分析 ----
    if msg_type == "image":
        user_id = msg.get("FromUserName", "")
        media_id = msg.get("MediaId", "")
        logger.info(f"收到企微图片: user={user_id}, media_id={media_id}")
        asyncio.create_task(_process_agent_image(user_id, media_id))
        return PlainTextResponse(content="success")

    return PlainTextResponse(content="success")


async def _process_agent_message(user_id: str, content: str):
    """异步处理文字消息并主动回复"""
    try:
        from app.services.agent_dispatcher import get_agent_dispatcher
        from app.services.wechat_service import get_wechat_service

        dispatcher = get_agent_dispatcher()
        reply = await dispatcher.handle_message(user_id, content)

        wechat = get_wechat_service()
        await wechat.send_text_message(user_id, reply)
    except Exception as e:
        logger.error(f"Agent消息处理失败: user={user_id}, error={e}", exc_info=True)


async def _process_agent_image(user_id: str, media_id: str):
    """异步处理图片消息：下载+持久化+智能路由（待处理工单关联 or VLM分析）"""
    try:
        from app.services.agent_dispatcher import get_agent_dispatcher
        from app.services.wechat_service import get_wechat_service

        wechat = get_wechat_service()
        await wechat.send_text_message(user_id, "收到图片，正在处理...")

        dispatcher = get_agent_dispatcher()
        reply = await dispatcher.handle_image(user_id, media_id)

        await wechat.send_text_message(user_id, reply)
    except Exception as e:
        logger.error(f"Agent图片处理失败: user={user_id}, error={e}", exc_info=True)
        try:
            from app.services.wechat_service import get_wechat_service
            wechat = get_wechat_service()
            await wechat.send_text_message(user_id, "图片处理失败，请稍后重试。")
        except Exception:
            pass


async def _process_card_button_click(msg: dict):
    """
    处理模板卡片按钮点击事件（两步状态机）

    第一步按钮：
    - confirm_{alarm_id}: 确认接单 → 更新状态为处理中，创建工单，卡片更新到第二步
    - ignore_{alarm_id}: 误报忽略 → 终态，自动结单

    第二步按钮：
    - complete_{alarm_id}: 已处理完成 → 终态，自动结单
    - false_{alarm_id}: 标记误报 → 终态，自动结单

    终态按钮：
    - done_{alarm_id}: 已完成，忽略
    """
    try:
        from app.services.wechat_service import get_wechat_service
        from app.services.work_order_client import get_work_order_client

        user_id = msg.get("FromUserName", "")
        event_key = msg.get("EventKey", "")
        task_id = msg.get("TaskId", "")
        response_code = msg.get("ResponseCode", "")

        logger.info(
            f"卡片按钮点击: user={user_id}, key={event_key}, task={task_id}"
        )

        # 解析 action 和 alarm_id
        if event_key.startswith("confirm_"):
            action = "confirm"
            alarm_id = event_key[len("confirm_"):]
        elif event_key.startswith("ignore_"):
            action = "ignore"
            alarm_id = event_key[len("ignore_"):]
        elif event_key.startswith("complete_"):
            action = "complete"
            alarm_id = event_key[len("complete_"):]
        elif event_key.startswith("false_"):
            action = "false"
            alarm_id = event_key[len("false_"):]
        elif event_key.startswith("done_"):
            return  # 终态按钮，忽略
        else:
            logger.warning(f"未知的按钮 key: {event_key}")
            return

        wechat = get_wechat_service()
        wo_client = get_work_order_client()

        # 保存 response_code 供后续 IoT 回调时更新卡片
        if response_code:
            wechat.save_response_code(alarm_id, response_code)

        # 获取关联的工单ID
        order_id = _get_order_id_for_alarm(alarm_id)

        # ---- 确认接单：调 IoT /confirm ----
        if action == "confirm":
            if order_id and wo_client.enabled:
                success = await wo_client.confirm_order(order_id)
                if success:
                    logger.info(f"IoT工单已确认: alarm={alarm_id}, order={order_id}, by={user_id}")
                else:
                    logger.warning(f"IoT工单确认失败: alarm={alarm_id}, order={order_id}")
                    # IoT 调用失败时降级直接更新
                    service = get_alarm_event_service()
                    service.handle_alarm(alarm_id=alarm_id, alarm_status="CONFIRMED",
                                         handle_status="HANDLING", handler=user_id, remark="企微确认(IoT降级)")
            else:
                # 工单未启用时直接更新告警状态
                service = get_alarm_event_service()
                service.handle_alarm(alarm_id=alarm_id, alarm_status="CONFIRMED",
                                     handle_status="HANDLING", handler=user_id, remark="企微确认接单")

            # 更新卡片提示去H5处理
            if response_code:
                await wechat.update_alarm_card_step2(
                    response_code=response_code,
                    user_ids=[user_id],
                    alarm_id=alarm_id,
                    operator_name=user_id,
                )

        # ---- 误报忽略：调 IoT /false-alarm ----
        elif action == "ignore":
            if order_id and wo_client.enabled:
                success = await wo_client.false_alarm(order_id)
                if success:
                    logger.info(f"IoT工单已标记误报: alarm={alarm_id}, order={order_id}, by={user_id}")
                else:
                    logger.warning(f"IoT误报标记失败: alarm={alarm_id}, order={order_id}")
                    service = get_alarm_event_service()
                    service.handle_alarm(alarm_id=alarm_id, alarm_status="FALSE",
                                         handle_status="IGNORED", handler=user_id, remark="企微误报(IoT降级)")
            else:
                service = get_alarm_event_service()
                service.handle_alarm(alarm_id=alarm_id, alarm_status="FALSE",
                                     handle_status="IGNORED", handler=user_id, remark="企微误报忽略")

            if response_code:
                await wechat.update_alarm_card_terminal(
                    response_code=response_code, user_ids=[user_id],
                    alarm_id=alarm_id, action="ignore", operator_name=user_id,
                )

        # ---- 已处理完成（step2按钮，保留兼容）：调 IoT /submit ----
        elif action == "complete":
            if order_id and wo_client.enabled:
                success = await wo_client.submit_order(order_id, result=f"已处理 by {user_id}")
                if success:
                    logger.info(f"IoT工单已提交: alarm={alarm_id}, order={order_id}")
                else:
                    service = get_alarm_event_service()
                    service.handle_alarm(alarm_id=alarm_id, alarm_status="CLOSED",
                                         handle_status="DONE", handler=user_id, remark="企微完成(IoT降级)")
            else:
                service = get_alarm_event_service()
                service.handle_alarm(alarm_id=alarm_id, alarm_status="CLOSED",
                                     handle_status="DONE", handler=user_id, remark="企微已处理")

            if response_code:
                await wechat.update_alarm_card_terminal(
                    response_code=response_code, user_ids=[user_id],
                    alarm_id=alarm_id, action="complete", operator_name=user_id,
                )

        # ---- 标记误报（step2按钮，保留兼容）----
        elif action == "false":
            if order_id and wo_client.enabled:
                success = await wo_client.false_alarm(order_id)
                if success:
                    logger.info(f"IoT工单已标记误报: alarm={alarm_id}, order={order_id}")
                else:
                    service = get_alarm_event_service()
                    service.handle_alarm(alarm_id=alarm_id, alarm_status="FALSE",
                                         handle_status="IGNORED", handler=user_id, remark="企微误报(IoT降级)")
            else:
                service = get_alarm_event_service()
                service.handle_alarm(alarm_id=alarm_id, alarm_status="FALSE",
                                     handle_status="IGNORED", handler=user_id, remark="企微标记误报")

            if response_code:
                await wechat.update_alarm_card_terminal(
                    response_code=response_code, user_ids=[user_id],
                    alarm_id=alarm_id, action="false", operator_name=user_id,
                )

    except Exception as e:
        logger.error(f"处理卡片按钮点击失败: {e}", exc_info=True)


def _get_order_id_for_alarm(alarm_id: str) -> str:
    """从 alarm_event_ext 中获取关联的工单ID"""
    from app.models import get_session, AlarmEventExt

    db = get_session()
    try:
        ext = db.query(AlarmEventExt).filter(
            AlarmEventExt.alarm_id == alarm_id,
            AlarmEventExt.ext_type == "WORK_ORDER",
        ).first()
        if ext and ext.ext_data:
            return ext.ext_data.get("order_id", "")
        return ""
    except Exception as e:
        logger.error(f"查询工单ID失败: alarm={alarm_id}, error={e}")
        return ""
    finally:
        db.close()


# ==================== Agent测试接口（开发用） ====================

@router.post("/agent/test")
async def test_agent_message(
    user_id: str = Query(default="test_user"),
    content: str = Query(..., description="测试消息内容"),
):
    """测试Agent对话（开发用，无加密，直接返回回复）"""
    from app.services.agent_dispatcher import get_agent_dispatcher
    dispatcher = get_agent_dispatcher()
    reply = await dispatcher.handle_message(user_id, content)
    return YudaoResponse.success({"user_id": user_id, "content": content, "reply": reply})