package gate_pic

import (
	"context"
	"encoding/json"
	"fmt"
	"git.getensh.com/common/gopkgs/database"
	"git.getensh.com/common/gopkgs/logger"
	"go.uber.org/zap"
	"google.golang.org/grpc/status"
	"gorm.io/gorm"
	"property-device/errors"
	dbmodel "property-device/model"
	pb_v1 "property-device/pb/v1"
	"property-device/utils/gate_utils"
)

func checkHouseholdGateSyncCheckParam(req *pb_v1.HouseholdGateSyncCheckRequest) error {
	switch {

	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case req.UnitId == 0:
		return status.Error(10003, "单元id不能为空")
	case req.Uid == 0:
		return status.Error(10003, "uid不能为空")
	}
	return nil
}

// 住户申请房屋后，检查是否有设备需要同步人脸
func HouseholdGateSyncCheck(ctx context.Context, req *pb_v1.HouseholdGateSyncCheckRequest) (reply *pb_v1.HouseholdGateSyncCheckReply, err error) {

	reply = &pb_v1.HouseholdGateSyncCheckReply{}

	// 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 = checkHouseholdGateSyncCheckParam(req)
	if err != nil {
		return nil, err
	}

	// 查找审核通过的录入记录
	up := dbmodel.TUserPic{}
	where := [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "garden_id", req.GardenId)
	where = dbmodel.WhereAdd(where, "uid", req.Uid)
	err = up.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	if up.ID == 0 {
		return reply, nil
	}
	if up.ApproveStatus != 2 {
		return reply, nil
	}

	// 查找绑定了该单元的设备
	gu := dbmodel.TGateUnit{}
	where = [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "garden_id", req.GardenId)
	where = dbmodel.WhereAdd(where, "unit_id", req.UnitId)

	protocols := []int32{}
	for protocol, array := range gate_utils.GateProtocolFuntionMap {
		if array[1] == 1 {
			protocols = append(protocols, protocol)
		}
	}
	if len(protocols) == 0 {
		return reply, nil
	}
	where = dbmodel.WhereAdd(where, "protocol in", protocols)
	guList, err := gu.List(database.DB(), where, nil, -1, -1)
	if err != nil {
		return nil, errors.DataBaseError
	}
	if len(guList) == 0 {
		return reply, nil
	}

	deviceIds := make([]int64, len(guList))
	for i, v := range guList {
		deviceIds[i] = v.DeviceId
	}

	// 查找记录已下发的设备
	gp := dbmodel.TGatePic{}
	where = [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "record_id", up.ID)
	gplist, err := gp.List(database.DB(), where, nil, -1, -1)
	if err != nil {
		return nil, errors.DataBaseError
	}
	exist := map[int64]bool{}
	for _, v := range gplist {
		exist[v.DeviceId] = true
	}

	// 得到需要下发的设备
	needAddIds := []int64{}
	for _, v := range deviceIds {
		if !exist[v] {
			needAddIds = append(needAddIds, v)
		}
	}
	if len(needAddIds) == 0 {
		return reply, nil
	}

	// 获取设备信息
	devices, err := GetDevicesByIds(needAddIds)
	if err != nil {
		return nil, err
	}

	if len(devices) == 0 {
		return reply, nil
	}

	// 进行下发
	db := database.DB().Begin()

	if err := WhitePicAddToDb(up, devices, db); err != nil {
		db.Rollback()
		return nil, err
	}
	db.Commit()
	WhitePicAddToDevice(up, devices)

	return reply, nil
}