package dataStruct

import (
	"log"
	"time"
	"unicode/utf8"
)

// DTU管理命令
const (
	CmdRegister  = iota // 注册
	CmdHeartBeat        // 心跳
	CmdCollect          // 采集
)

type DTUManageCmd struct {
	SN   string `json:"sn"`
	Cmd  int    `json:"cmd"`
	Data []byte `json:"data"`
}

// DmcUnmarshal 解析DTU上报
// 注册和心跳格式:注册包@202402200322 心跳包 $202402200322
// SN长度为8-16个字符
func (dmc *DTUManageCmd) DmcUnmarshal(data []byte) {
	size := utf8.RuneCount(data)
	log.Println("DTU采集：", data)
	// SN 长度在 8-16个字符 （注册包在9-17个字符）
	if size > 8 && size < 18 {
		if data[0] == '@' {
			dmc.Cmd = CmdRegister
			dmc.SN = string(data[1:])
			return
		} else if data[0] == '$' {
			dmc.Cmd = CmdHeartBeat
			dmc.SN = string(data[1:])
			return
		}
	}
	dmc.Data = data
	dmc.Cmd = CmdCollect
}

type DtuRegisterChanMsg struct {
	Sn    string
	Value *ClientState
}

type DateTime struct {
	Year   int
	Month  time.Month
	Day    int
	Hour   int
	Minute int
	Second int
}

// DataToTimeStamp 日期转时间戳
func (dt *DateTime) DataToTimeStamp() int64 {
	return time.Date(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0, time.Local).Unix()
}

// TimeStampToData 时间戳转日期
func (dt *DateTime) TimeStampToData(t int64) *DateTime {
	v := time.Unix(t, 0)
	m := &DateTime{}
	m.Year = v.Year()
	m.Month = v.Month()
	m.Day = v.Day()
	m.Hour = v.Hour()
	m.Minute = v.Minute()
	m.Second = v.Second()
	return m
}

type MeterRef struct {
	PvRef float32
	LvRef float32
}