package item

import (
	"encoding/json"
	"errors"
	"fmt"
	"regexp"
	"runtime"
	"runtime/debug"
	"server/global"
	"server/model"
	"server/utils/mqtt"
	"server/utils/protocol"
	"strings"
	"sync"
	"time"
)

func InitMqtt() {
	MqttService = GetHandler()
	MqttService.SubscribeTopics()
	go MqttService.Handler()
}

var MqttService *MqttHandler

var timeoutReg = regexp.MustCompile("Client .* has exceeded timeout")
var connectReg = regexp.MustCompile(`New client connected from .* as .*\(`)
var disconnectReg = regexp.MustCompile("Client mqttx_893e4b7d disconnected")

type MqttHandler struct {
	queue *mqtt.MlQueue
}

var _handlerOnce sync.Once
var _handlerSingle *MqttHandler

func GetHandler() *MqttHandler {
	_handlerOnce.Do(func() {
		_handlerSingle = &MqttHandler{
			queue: mqtt.NewQueue(10000),
		}
	})
	return _handlerSingle
}

func (o *MqttHandler) SubscribeTopics() {
	mqtt.GetMQTTMgr().Subscribe("/sys/#", mqtt.AtLeastOnce, o.HandlerData)
}

func (o *MqttHandler) HandlerData(m mqtt.Message) {
	for {
		ok, cnt := o.queue.Put(&m)
		if ok {
			break
		} else {
			global.GVA_LOG.Error(fmt.Sprintf("HandlerData:查询队列失败,队列消息数量:%d", cnt))
			runtime.Gosched()
		}
	}
}

func (o *MqttHandler) Handler() interface{} {
	defer func() {
		if err := recover(); err != nil {
			go GetHandler().Handler()
			global.GVA_LOG.Error(fmt.Sprintf("MqttHandler.Handler:发生异常:%s", string(debug.Stack())))
		}
	}()

	for {
		msg, ok, quantity := o.queue.Get()
		if !ok {
			time.Sleep(10 * time.Millisecond)
			continue
		}
		if quantity > 1000 {
			global.GVA_LOG.Error(fmt.Sprintf("队列堆积: %d", quantity))
		}

		m, ok := msg.(*mqtt.Message)
		if !ok {
			continue
		}
		fmt.Println(m.Topic())
		// 1. 解析 Topic
		_, _, eventFmt, err := parseTopic(m.Topic())
		if err != nil {
			global.GVA_LOG.Error("解析Topic失败:" + err.Error())
			continue
		}

		// 2. 解析外层报文
		var root model.MsgRoot
		if err := json.Unmarshal(m.Payload(), &root); err != nil {
			global.GVA_LOG.Error("解析MQTT报文失败:" + err.Error())
			continue
		}

		// 3. 根据事件类型分流解析 value
		switch eventFmt {
		case protocol.HeartbeatFmt:
			var val model.HeartbeatValue
			if err := json.Unmarshal(root.Params.Value, &val); err != nil {
				global.GVA_LOG.Error("解析心跳报文失败")
				continue
			}
			go HandleHeartBeat(val.DeviceName, val.UUID)

		case protocol.TriggerFmt:
			var val model.TriggerValue
			_ = json.Unmarshal(root.Params.Value, &val)
			// 传感器触发业务逻辑

		case protocol.AlsFmt:
			var val model.AlsValue
			_ = json.Unmarshal(root.Params.Value, &val)
			// 照度入库

		case protocol.ConsumptionFmt:
			var val model.ConsumptionValue
			_ = json.Unmarshal(root.Params.Value, &val)
			// 能耗统计
			CreateDeviceConsumption(val)
		case protocol.CurrentFmt:
			var val model.CurrentValue
			_ = json.Unmarshal(root.Params.Value, &val)
			// 更新亮度、色温

		case protocol.TemperatureHumidityFmt:
			var val model.TempHumValue
			_ = json.Unmarshal(root.Params.Value, &val)
			// 温湿度入库

		case protocol.BeaconFmt:
			var val model.BeaconValue
			_ = json.Unmarshal(root.Params.Value, &val)
			go HandleTempScanDeviceData(val)
			go HandleHeartBeat(val.DeviceName, val.UUID)

		case protocol.SettingFmt:
			var val model.SceneValue
			_ = json.Unmarshal(root.Params.Value, &val)
			go HandleSceneData(val)
		default:
			global.GVA_LOG.Info("未处理事件:" + eventFmt)
		}
	}
}

// Publish 发布消息
func (o *MqttHandler) Publish(topic string, data interface{}) error {
	return mqtt.GetMQTTMgr().Publish(topic, data, mqtt.AtLeastOnce)
}

// GetTopic 自定义主题
func (o *MqttHandler) GetTopic(deviceSn, protocol string) string {
	return fmt.Sprintf("mini/%s/%s", deviceSn, protocol)
}

// parseTopic 解析 /sys/# 主题
func parseTopic(topic string) (string, string, string, error) {
	strList := strings.Split(topic, "/")
	if len(strList) < 7 {
		return "", "", "", errors.New("topic 格式不正确")
	}
	if strList[1] != "sys" {
		return "", "", "", errors.New("不是 sys 主题")
	}

	productKey := strList[2]
	deviceName := strList[3]
	eventFmt := "/" + strings.Join(strList[4:], "/")
	return productKey, deviceName, eventFmt, nil
}

// ==================== 下发指令结构体 ====================
type ControlCmd struct {
	Code       int    `json:"code"`
	DeviceName string `json:"deviceName"`
	Area       string `json:"area"`
	Address    string `json:"address"`
	Action     string `json:"action"`
	Params     string `json:"params"`
	Identity   string `json:"identity"`
}

// ==================== 底层发送方法 ====================
func sendCmd(code int, productKey, gatewayDN, netPwd, area, addr, action, params string) error {
	topic := fmt.Sprintf("/%s/%s/user/get", productKey, gatewayDN)

	cmd := ControlCmd{
		Code:       code,
		DeviceName: gatewayDN,
		Area:       area,
		Address:    addr,
		Action:     action,
		Params:     params,
		Identity:   netPwd,
	}

	payload, err := json.Marshal(cmd)
	if err != nil {
		return fmt.Errorf("报文序列化失败: %w", err)
	}

	return MqttService.Publish(topic, payload)
}

func GetSetting(productKey, gatewayDN, netPwd, area, addr string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, addr, "getSetting", "")
}

func DeviceSendCmd(productKey, gatewayDN, netPwd, area, addr, action, params string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, addr, action, params)
}

// -------------------------------------------------------------------------------------
// ==================== GS200 全量 80+ 指令封装（单灯/群组/全区/空调/参数/上报/情景） ====================
// -------------------------------------------------------------------------------------

// ==================== 1. 单灯控制 ====================
func BlinkLight(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "blink", "")
}
func LightOn(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "lightOn", "")
}
func LightOff(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "lightOff", "")
}
func LightSleep(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "lightSleep", "")
}
func StopBlink(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "stopBlink", "")
}
func SsrOn(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "ssrOn", "")
}
func SsrOff(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "ssrOff", "")
}
func NetOn(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "netOn", "")
}
func NetOff(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "netOff", "")
}
func RelayOn(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "relayOn", "")
}
func RelayOff(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "relayOff", "")
}

// ==================== 2. 群组控制 ====================
func BlinkGroup(productKey, gatewayDN, netPwd, area, cluster string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "blink", "")
}
func GroupLightOn(productKey, gatewayDN, netPwd, area, cluster string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "lightOn", "")
}
func GroupLightOff(productKey, gatewayDN, netPwd, area, cluster string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "lightOff", "")
}
func GroupLightSleep(productKey, gatewayDN, netPwd, area, cluster string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "lightSleep", "")
}

// ==================== 3. 亮度/色温/延时/模式参数 ====================
func SetHighBright(productKey, gatewayDN, netPwd, area, number, bright string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setHighBright", bright)
}
func SetStandbyBright(productKey, gatewayDN, netPwd, area, number, bright string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setStandbyBright", bright)
}
func SetCctBright(productKey, gatewayDN, netPwd, area, number, cct string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setCctBright", cct)
}
func SetDelayTime(productKey, gatewayDN, netPwd, area, number, sec string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setDelayTime", sec)
}
func SetDelayTime2(productKey, gatewayDN, netPwd, area, number, sec string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setDelayTime2", sec)
}
func SetLightMode(productKey, gatewayDN, netPwd, area, number, mode string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setLightMode", mode)
}
func SetDelayMode(productKey, gatewayDN, netPwd, area, number, mode string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setDelayMode", mode)
}
func SetAlsMode(productKey, gatewayDN, netPwd, area, number, mode string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setAlsMode", mode)
}

// ==================== 4. 情景模式 ====================
func CallScene(productKey, gatewayDN, netPwd, area, cluster, sceneNo string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "callScene", sceneNo)
}
func SaveToScene(productKey, gatewayDN, netPwd, area, cluster, sceneNo string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "savetoScene", sceneNo)
}
func ReadScene(productKey, gatewayDN, netPwd, area, number, sceneNo string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readScene", sceneNo)
}

// ==================== 5. 全区/网关指令 ====================
func ScanAll(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "00 00", "scan", "")
}
func StopScanAll(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "00 00", "stopScan", "")
}
func GatewayReboot(productKey, gatewayDN, netPwd, area, waitSec string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "00 00", "reboot", waitSec)
}
func SetRebootTime(productKey, gatewayDN, netPwd, area, timeRange string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "00 00", "rebootSetting", timeRange)
}
func GatewayUpgrade(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "00 00", "upgrade", "")
}

// ==================== 6. 上报控制 ====================
func ReportConsumption(productKey, gatewayDN, netPwd, area, interval string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "FF FF", "reportConsumption", interval)
}
func StopReportConsumption(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "FF FF", "reportConsumptionStop", "")
}
func ReportSetting(productKey, gatewayDN, netPwd, area, interval string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "FF FF", "reportSetting", interval)
}
func StopReportSetting(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "FF FF", "reportSettingStop", "")
}
func ReportConsumptionAck(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "FF FF", "reportConsumptionAck", "")
}
func ReportSettingAck(productKey, gatewayDN, netPwd, area string) error {
	return sendCmd(400, productKey, gatewayDN, netPwd, area, "FF FF", "reportSettingAck", "")
}

// ==================== 8. 地址修改 ====================
func SetNumberAddress(productKey, gatewayDN, netPwd, area, number, param string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setNumberAddress", param)
}
func SetClusterAddress(productKey, gatewayDN, netPwd, area, cluster, newCluster string) error {
	return sendCmd(200, productKey, gatewayDN, netPwd, area, cluster, "setClusterAddress", newCluster)
}
func SetAreaAddress(productKey, gatewayDN, netPwd, area, number, newArea string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "setAreaAddress", newArea)
}

// ==================== 9. 传感器/报警/复位 ====================
func SsrControl(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "ssrControl", "")
}
func AlarmOn(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "alarmOn", "")
}
func AlarmOff(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "alarmOff", "")
}
func ResetDevice(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "reset", "")
}

// ==================== 10. 电量/电压/电流/功率查询 ====================
func ReadMeterData(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readMeterData", "")
}
func ReadVoltage(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readVoltage", "")
}
func ReadCurrent(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readCurrent", "")
}
func ReadPower(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readPower", "")
}

// ==================== 11. 版本/信号查询 ====================
func ReadVersion(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readVersion", "")
}
func ReadRssi(productKey, gatewayDN, netPwd, area, number string) error {
	return sendCmd(100, productKey, gatewayDN, netPwd, area, number, "readRssi", "")
}