package gate_command

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 checkGateCommandAddParam(req *pb_v1.GateCommandAddRequest) error {
	switch {
	case req.DeviceId == 0:
		return status.Error(10003, "设备id不能为空")
	case gate_utils.CommandCodeMap[req.CmdCode] == "":
		return status.Error(10003, "不支持的命令代码")
	}
	return nil
}

func getGateInfo(deviceId int64, sn string, protocol int32) (*dbmodel.TGate, error) {
	p := &dbmodel.TGate{}
	where := [][2]interface{}{}
	if deviceId > 0 {
		where = dbmodel.WhereAdd(where, "id", deviceId)
	} else {
		where = dbmodel.WhereAdd(where, "sn", sn)
		where = dbmodel.WhereAdd(where, "protocol", protocol)
	}

	err := p.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	if p.ID == 0 {
		return nil, errors.ErrRecordNotFound
	}
	return p, nil
}

func GateCommandAdd(ctx context.Context, req *pb_v1.GateCommandAddRequest) (reply *pb_v1.GateCommandAddReply, err error) {

	reply = &pb_v1.GateCommandAddReply{}

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

	gateInfo, err := getGateInfo(req.DeviceId, "", 0)
	if err != nil {
		return nil, err
	}

	commander := NewCommander(gateInfo)
	if commander == nil {
		return nil, status.Error(10003, "不支持的协议")
	}
	switch req.CmdCode {
	case gate_utils.OpenCommand:
		err = commander.Open()
	case gate_utils.RebootCommand:
		err = commander.Reboot()
	default:
		return nil, status.Error(10003, "暂不支持该命令")

	}
	if err != nil {
		return nil, err
	}
	if commander.Command() {
		gate_utils.CommandCacheIncrease(gateInfo.Sn, gateInfo.Protocol)
	}

	return reply, nil
}