package face

import (
	"context"
	"encoding/json"
	"fmt"
	"git.getensh.com/common/gopkgs/logger"
	"git.getensh.com/common/gopkgs/mqtt"
	"go.uber.org/zap"
	"google.golang.org/grpc/status"
	"property-mqtt/errors"
	"property-mqtt/mqtt_utils"
	pb_v1 "property-mqtt/pb/v1"
)

func checkFaceWhiteDelParam(req *pb_v1.FaceWhiteDelRequest) error {
	if req.Sn == "" {
		return status.Error(10003, "设备sn不能为空")
	}
	if len(req.CustomIds) == 0 {
		return status.Error(10003, "用户不能为空")
	}
	for _, v := range req.CustomIds {
		if v == "" {
			return status.Error(10003, "用户不能为空")
		}
	}
	return nil
}

func FaceWhiteDel(ctx context.Context, req *pb_v1.FaceWhiteDelRequest) (reply *pb_v1.FaceWhiteDelReply, err error) {

	reply = &pb_v1.FaceWhiteDelReply{}

	// 捕获各个task中的异常并返回给调用者
	defer func() {
		if r := recover(); r != nil {
			err = fmt.Errorf("%+v", r)
			e := &status.Status{}
			if er := json.Unmarshal([]byte(err.Error()), e); er != nil {
				logger.Error("err",
					zap.String("system_err", err.Error()),
					zap.Stack("stacktrace"))
			}
		}
	}()
	err = checkFaceWhiteDelParam(req)
	if err != nil {
		return nil, err
	}
	if !mqtt_utils.Wait(req.Sn) {
		return nil, status.Error(10003, "系统繁忙")
	}

	messageId := mqtt_utils.GenerateMsgId(req.Sn)

	mreq := mqtt_utils.DeletePersonsCmd{
		Operator:  "DeletePersons",
		MessageId: messageId,
		DataBegin: "BeginFlag",
		DataEnd:   "EndFlag",
		PersonNum: len(req.CustomIds),
		Info:      mqtt_utils.DeletePersonsInfo{CustomId: req.CustomIds},
	}
	bytes, _ := json.Marshal(&mreq)

	// 先缓存命令，mqtt收到响应后会做响应处理
	//mqtt_utils.CacheCommand(req.Sn, string(bytes), messageId)
	// 向mqtt发送命令
	err = mqtt.Publish(mqtt.MqttCli, mqtt_utils.GetTopic(req.Sn), bytes)
	if err != nil {
		logger.Error("func",
			zap.String("call", "mqtt.Publish"),
			zap.String("error", err.Error()))
		// 失败删除命令
		//mqtt_utils.DelCommand(req.DeviceId, messageId)
		return nil, errors.MqttError
	}

	return reply, nil
}