package gate

import (
	"context"
	"encoding/json"
	"fmt"
	"git.getensh.com/common/gopkgs/cache"
	"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"
)

const (
	GateInfoKeyPrefix = "gate_info_key"
)

func checkGateInfoParam(req *pb_v1.GateInfoRequest) error {
	if req.DeviceId == 0 && (req.Sn == "" || req.Protocol == 0) {
		return status.Error(10003, "设备id和sn不能同时")
	}
	return nil
}

func gateInfoFromRedis(deviceId int64, sn string, protocol int32) pb_v1.GateItem {
	key := GateInfoKeyPrefix + fmt.Sprintf("%v-%v-%v", deviceId, sn, protocol)
	str, _ := cache.Redis().Get(key)
	if str == "" {
		return pb_v1.GateItem{}
	}
	ret := pb_v1.GateItem{}
	json.Unmarshal([]byte(str), &ret)
	return ret
}

func gateInfoToRedis(deviceId int64, sn string, protocol int32, info pb_v1.GateItem) {
	key := GateInfoKeyPrefix + fmt.Sprintf("%v-%v-%v", deviceId, sn, protocol)
	bytes, _ := json.Marshal(info)
	cache.Redis().SetEx(key, 600, bytes)
}

func delGateInfoFromRedis(deviceId int64, sn string, protocol int32) {
	key := GateInfoKeyPrefix + fmt.Sprintf("%v-%v-%v", deviceId, sn, protocol)
	cache.Redis().Del(key)
}

func GateInfo(ctx context.Context, req *pb_v1.GateInfoRequest) (reply *pb_v1.GateInfoReply, err error) {

	reply = &pb_v1.GateInfoReply{}

	// 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 = checkGateInfoParam(req)
	if err != nil {
		return nil, err
	}
	info := gateInfoFromRedis(req.DeviceId, req.Sn, req.Protocol)
	if info.DeviceId != 0 {
		reply.Info = &info
		return reply, nil
	}

	p := &dbmodel.TGate{}
	where := [][2]interface{}{}
	if req.DeviceId > 0 {
		req.Sn = ""
		req.Protocol = 0
		where = dbmodel.WhereAdd(where, "id", req.DeviceId)
	} else {
		req.DeviceId = 0
		where = dbmodel.WhereAdd(where, "sn", req.Sn)
		where = dbmodel.WhereAdd(where, "protocol", req.Protocol)
	}

	err = p.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}

	reply.Info = &pb_v1.GateItem{
		// 设备id
		DeviceId: p.ID,
		// 设备名
		DeviceName: p.DeviceName,
		// 序列号
		Sn: p.Sn,
		// 厂商
		Manufactor: p.Manufactor,
		// 授权key
		AuthKey: p.AuthKey,
		// 协议
		Protocol: p.Protocol,
		// 小区id
		GardenId: p.GardenId,
		// 小区名
		GardenName: "",
		// 出库人
		OutUser: p.OutUser,
		// 出库时间
		OutTime: p.OutTime,
		// 1 在线 2 离线
		Status: p.Status,
		Enable: false,
		// 1 进场 2 出场 3 进出场
		Direction:    p.Direction,
		Location:     p.Location,
		QcodeSupport: p.QcodeSupport,
		PicSupport:   p.PicSupport,
		CardSupport:  p.CardSupport,
		Ip:           p.Ip,
		Mac:          p.Mac,
		UserName:     p.UserName,
		Password:     p.Password,
		ProtocolDesc: gate_utils.GateProtocolNameMap[p.Protocol],
		Port:         p.Port,
	}
	if p.Enable == 1 {
		reply.Info.Enable = true
	}
	gateInfoToRedis(req.DeviceId, req.Sn, req.Protocol, *reply.Info)

	return reply, nil
}