package iotMeter

import (
	"IotAdmin/core/tools/utils"
	iotInterface "IotAdmin/iot/interface"
	iotMap "IotAdmin/iot/map"
	iotProtocol "IotAdmin/iot/protocol"
	iotProtocolHandler "IotAdmin/iot/protocol/handler"
	iotRtuService "IotAdmin/iot/service/rtuService"
	iotStruct "IotAdmin/iot/struct"
	"errors"
	"fmt"
)

func SetMeterAddress(sn, protocol string, addr, newAddr int) error {
	client, handler, rtu, err := getClientHandle(sn, protocol, addr)
	if err != nil {
		return err
	}
	client.MLock.Lock()
	defer client.MLock.Unlock()
	if newAddr == addr {
		return errors.New("新地址不能与旧地址相同")
	}
	if newAddr < 1 || newAddr > 255 {
		return errors.New("新地址范围1-255")
	}
	if err = handler.SetAddress(rtu, newAddr); err != nil {
		return fmt.Errorf("表计地址设置失败: %s", err.Error())
	}
	return nil
}

func SetMeterConfig(sn, protocol string, addr int, data *string) error {
	client, handler, rtu, err := getClientHandle(sn, protocol, addr)
	if err != nil {
		return err
	}
	client.MLock.Lock()
	defer client.MLock.Unlock()
	if err = handler.SetConfig(rtu, data); err != nil {
		return fmt.Errorf("表计配置设置失败: %s", err.Error())
	}
	return nil
}

func GetMeterConfig(sn, protocol string, addr int) (data interface{}, err error) {
	client, handler, rtu, err := getClientHandle(sn, protocol, addr)
	if err != nil {
		return
	}
	client.MLock.Lock()
	defer client.MLock.Unlock()
	if data, err = handler.GetConfig(rtu); err != nil {
		err = fmt.Errorf("表计配置获取失败: %s", err.Error())
	}
	return
}

func getClientHandle(sn, protocol string, addr int) (client *iotStruct.DtuClient, handle iotInterface.MeterHandler, rtu iotRtuService.RtuNetPgr, err error) {
	if !iotProtocol.VerifyMeterProtocol(protocol) {
		err = errors.New("表计协议不支持")
		return
	}
	if addr < 1 || addr > 255 {
		err = errors.New("地址范围1-255")
		return
	}
	_, ok := iotMap.MapDtuDevice.Get(sn)
	if !ok {
		err = errors.New("表计不存在")
		return
	}
	client, ok = iotMap.MapDtuClient.Get(sn)
	if !ok {
		err = errors.New("表计正在通信或已离线，请稍后再试！")
		return
	}
	rtu = iotRtuService.NewRtuNetPgr(utils.IntoByte(addr))
	rtu.SetClientState(client)
	rtu.SetSerialNumber(sn)

	handle, err = iotProtocolHandler.GetMeterHandler(protocol)
	return
}

func IsOnline(sn string) bool {
	_, ok := iotMap.MapDtuClient.Get(sn)
	return ok
}