package iotDb

import (
	"IotAdmin/app/iot/models"
	"IotAdmin/core/logger"
	"IotAdmin/core/sdk"
	"IotAdmin/core/storage"
	"IotAdmin/iot/constant"
	iotLog "IotAdmin/iot/log"
	iotMap "IotAdmin/iot/map"
	iotStruct "IotAdmin/iot/struct"
	"encoding/json"
	"errors"
	"fmt"

	"gorm.io/gorm"
)

// LoadDtuDeviceMap 加载DTU设备
func LoadDtuDeviceMap() error {
	iotMap.MapDtuDevice.Clean()
	deviceArr := make([]models.IotDevice, 0)
	for _, db := range dbMap {
		gatewayArr := make([]models.IotDevice, 0)
		d := &models.IotDevice{}
		err := db.Model(d).Select("id,sn,name,type,mode,status,cycle").Where("type = ? AND status = ?", constant.IotDeviceTypeGateway, constant.IotDeviceOnline).Find(&gatewayArr).Error
		if err != nil {
			continue
		}
		deviceArr = append(deviceArr, gatewayArr...)
		err = loadDtuDeviceMap(db, &deviceArr)
		if err != nil {
			return err
		}
	}
	return nil
}

func loadDtuDeviceMap(db *gorm.DB, arr *[]models.IotDevice) error {
	if len(*arr) == 0 {
		return nil
	}
	for _, v := range *arr {
		err := addDtuDevice(db, v)
		if err != nil {
			return err
		}
	}
	return nil
}

func addDtuDevice(db *gorm.DB, device models.IotDevice) error {

	if device.Type != constant.IotDeviceTypeGateway {
		return errors.New("type is not gateway")
	}
	children := make([]models.IotDevice, 0)
	db.Model(&models.IotDevice{}).Select("id,sn,status,dsn,protocol,address,bm_yz,other_config").Where("parent_id = ? AND status = ?", device.Id, constant.IotDeviceOnline).Find(&children)
	if len(children) == 0 {
		return nil
	}
	cfg := device.ToDtuConfig(&children)
	var dtu = &iotStruct.DtuDevice{
		SN:     device.Sn,
		Name:   device.Name,
		Config: cfg,
		Logger: logger.NewHelper(iotLog.SetupDeviceLogger(device.Sn)),
	}
	logger.Infof("加载DTU设备: %s %v", dtu.SN, dtu.Config)
	dtu.Logger.Infof("加载DTU设备 %v", *dtu.Config)
	iotMap.MapDtuDevice.Add(device.Sn, dtu)
	return nil
}

func DtuChangeStatus(message storage.Message) (err error) {
	db := sdk.Runtime.GetDbByKey(message.GetPrefix())
	if db == nil {
		err = errors.New("db not exist")
		logger.Errorf("host[%s]'s %s", message.GetPrefix(), err.Error())
		return
	}
	var rb []byte
	rb, err = json.Marshal(message.GetValues())
	if err != nil {
		err = fmt.Errorf("json Marshal error,%s, %v", string(rb), err.Error())
		return
	}
	status := iotStruct.DtuStatus{}
	err = json.Unmarshal(rb, &status)
	if err != nil {
		err = fmt.Errorf("json Unmarshal error,%s, %v", string(rb), err.Error())
		return
	}
	mp := make(map[string]interface{})
	mp["online_status"] = status.Status
	if status.Status == constant.IotDeviceOffline {
		mp["time_offline"] = status.Time
	} else {
		mp["time_online"] = status.Time
	}
	err = db.Model(&models.IotDevice{}).Where("sn = ?", status.SN).Updates(mp).Error
	return err
}

func DtuDeviceChange(message storage.Message) (err error) {
	db := sdk.Runtime.GetDbByKey(message.GetPrefix())
	if db == nil {
		err = errors.New("db not exist")
		logger.Errorf("host[%s]'s %s", message.GetPrefix(), err.Error())
		return nil
	}
	var rb []byte
	rb, err = json.Marshal(message.GetValues())
	if err != nil {
		err = fmt.Errorf("json Marshal error,%s, %v", string(rb), err.Error())
		return err
	}
	val := &iotStruct.DtuChange{}
	err = json.Unmarshal(rb, val)
	if err != nil {
		err = fmt.Errorf("json Unmarshal error,%s, %v", string(rb), err.Error())
		return err
	}
	if val.Type == constant.IotDeviceRefresh {
		err = LoadDtuDeviceMap()
	} else if val.Type == constant.IotDeviceDelete {
		device := &models.IotDevice{}
		err = db.Model(device).Where("id = ? ", val.Id).Find(device).Error
		if err != nil {
			return
		}
		iotMap.MapDtuDevice.Remove(device.Sn)
	} else {
		device := &models.IotDevice{}
		err = db.Model(device).Where("id = ? AND status = ?", val.Id, constant.IotDeviceEnabled).Find(device).Error
		if err != nil {
			return
		}
		err = addDtuDevice(db, *device)
	}
	return
}