lc_smart_admin/server/protocol/screens_service.go

package protocol

import (
	"bytes"
	"encoding/binary"
	"fmt"
	"github.com/valyala/bytebufferpool"
	"golang.org/x/text/encoding/simplifiedchinese"
	"golang.org/x/text/transform"
	"io/ioutil"
	promodel "server/model/common/devices"
	"strconv"
	"time"
)

// 认证登录 (这里设置了默认心跳时间为60s)
func (x AuthDataPack) AuthLogin() *bytebufferpool.ByteBuffer {
	buf := bytebufferpool.Get()
	x.Head = []byte{0xFE, 0x5C, 0x4B, 0x89}
	x.Len = []byte{0x2A, 0x00, 0x00, 0x00}
	x.Type = 0x62
	x.Id = []byte{0x00, 0x00, 0x00, 0x00}
	x.DataLen = []byte{0x17, 0x00, 0x00, 0x00}
	x.Result = 0x31
	x.Separator1 = 0x23
	x.Separator2 = 0x23
	x.HeartBeat = []byte{0x30, 0x36, 0x30} //默认060， 60秒发一次心跳
	x.EndSeparator = 0x23
	x.End = []byte{0xFF, 0xFF}
	buf.Write(x.Head)
	buf.Write(x.Len)
	buf.WriteByte(x.Type)
	buf.Write(x.Id)
	buf.Write(x.DataLen)
	buf.WriteByte(x.Result)
	buf.WriteByte(x.Separator1)

	slice := GetNowDate()
	TmpData := make([]byte, len(slice))
	for i, s := range slice {
		TmpData[i] = byte(s) + 0x30
	}
	x.Time = TmpData
	buf.Write(x.Time)
	buf.WriteByte(x.Separator2)
	buf.Write(x.HeartBeat)
	buf.WriteByte(x.EndSeparator)
	buf.Write(x.End)
	//fmt.Println("TmpData: ", hex.EncodeToString(buf.Bytes()))
	//fmt.Println("TmpData: ", buf.Bytes())
	return buf
}

// 开关屏幕
func (x SwitchDataPack) SwitchScreens() *bytebufferpool.ByteBuffer {
	buf := bytebufferpool.Get()
	x.Head = []byte{0xFE, 0x5C, 0x4B, 0x89}
	x.Len = []byte{0x13, 0x00, 0x00, 0x00}
	x.Id = []byte{0x00, 0x00, 0x00, 0x00}
	x.Reserve = []byte{0x00, 0x00, 0x00, 0x00}
	x.End = []byte{0xFF, 0xFF}
	buf.Write(x.Head)
	buf.Write(x.Len)
	buf.WriteByte(x.Type)
	buf.Write(x.Id)
	buf.Write(x.Reserve)
	buf.Write(x.End)
	return buf
}

// 发送内码文字
func (x InternalCodeDataPack) SendInternalCode(content []promodel.InternalCodeContent) *bytebufferpool.ByteBuffer {
	buf := bytebufferpool.Get()
	x.Head = []byte{0xFE, 0x5C, 0x4B, 0x89}

	x.Type = 0x31
	x.Id = []byte{0x00, 0x00, 0x00, 0x00}

	//封装控制指令内容
	for i, codeContent := range content {
		//拼接素材ID 000000001
		UidStr := fmt.Sprintf("%09d", i+1)
		//给每一项加0x30
		uidByte := EachItemAdd(UidStr)

		//将内容转GB2312编码格式
		gbk, contentLen, _ := Utf8ToGbk([]byte(codeContent.Text))

		//获取素材内容长度
		contentLenBytes := GetBytesArrYes(contentLen+10, 4)

		ICD := InternalCodeData{
			MaterialId:         uidByte,                   //素材ID
			CharacterColor:     codeContent.Color,         //字符颜色
			TextSize:           codeContent.Size,          //字体大小
			ControlCode2:       []byte{byte(i + 1), 0x00}, //控制码2
			MaterialContentLen: contentLenBytes,           //素材内容长度
			MaterialContent:    gbk,                       //素材内容
		}
		ContentBuf := ICD.AppendInternalCodeContent()
		x.Data = append(x.Data, ContentBuf.Bytes()...)
	}
	x.Len = GetBytesArrYes(uint8(len(x.Data))+22, 4)
	x.DataLen = GetBytesArrYes(uint8(len(x.Data))+3, 4)

	x.EndSign = []byte{0x2D, 0x31, 0x2C}
	x.End = []byte{0xFF, 0xFF}

	buf.Write(x.Head)
	buf.Write(x.Len)
	buf.WriteByte(x.Type)
	buf.Write(x.Id)
	buf.Write(x.DataLen)
	buf.Write(x.Data)
	buf.Write(x.EndSign)
	buf.Write(x.End)
	return buf
}

func (x VoiceBroadDataPack) VoiceBroad(broad string) *bytebufferpool.ByteBuffer {
	buf := bytebufferpool.Get()
	x.Head = []byte{0xFE, 0x5C, 0x4B, 0x89}
	x.Type = 0x68
	x.ForwardPort = 0x02 //转发端口
	x.Id = []byte{0x00, 0x00, 0x00}
	x.End = []byte{0xFF, 0xFF}

	//将语音内容字符串转字节数组，并获取其长度供给内容长度使用
	gbk, contentLen, _ := Utf8ToGbk([]byte(broad))
	contentLenBytes := GetBytesArrNo(contentLen+2, 2)

	data := VoiceBroadData{
		BroadContentLen: contentLenBytes,
		BroadContent:    gbk,
	}
	contentByte := data.AppendVoiceBroadContent()

	x.Data = contentByte.Bytes()

	//帧头到保留字刚好是控制指令长度
	x.DataLen = GetBytesArrYes(uint8(len(x.Data)), 4)
	x.Len = GetBytesArrYes(uint8(len(x.Data)+19), 4)

	buf.Write(x.Head)
	buf.Write(x.Len)
	buf.WriteByte(x.Type)
	buf.WriteByte(x.ForwardPort)
	buf.Write(x.Id)
	buf.Write(x.DataLen)
	buf.Write(x.Data)
	buf.Write(x.End)
	return buf
}

func (x VoiceBroadData) AppendVoiceBroadContent() *bytebufferpool.ByteBuffer {
	buf := bytebufferpool.Get()
	x.FrameHeader = 0xFD
	x.BroadWord = 0x01
	x.BroadEncodeFormat = []byte{0x00}//编码格式
	/*0x5B, 0x6D, 0x35, 0x32, 0x5D, //男2声
	0x5B, 0x73, 0x35, 0x5D, //中语速
	0x5B, 0x76, 0x31, 0x30, 0x5D*/ //高音量
	x.ReservedWord = []byte{0x00, 0x00}

	buf.WriteByte(x.FrameHeader)
	buf.Write(x.BroadContentLen)
	buf.WriteByte(x.BroadWord)
	buf.Write(x.BroadEncodeFormat)
	buf.Write(x.BroadContent)
	buf.Write(x.ReservedWord)
	return buf
}

func (x InternalCodeData) AppendInternalCodeContent() *bytebufferpool.ByteBuffer {
	buf := bytebufferpool.Get()
	x.Separator = 0x2C
	x.DisplayMode = 0x09
	x.DisplaySpeed = 0x01
	x.StopTime = 0xFF // 静止显示
	x.PlayingPeriod = []byte{0x30, 0x31, 0x30, 0x31, 0x30, 0x31, 0x39, 0x39, 0x31, 0x32, 0x33, 0x31}
	x.MaterialAttribLen = []byte{0x13, 0x00, 0x00, 0x00}
	x.MaterialStartFlag = []byte{0x55, 0xAA}
	x.ReservedWord1 = 0x00
	x.TextRotation = 0x01
	x.MaterialAttrib = 0x37
	x.MaterialStorageMode = 0x32
	x.MaterialUpdateMode = 0x31
	x.TextStartSign = 0x31
	x.ScreenColor = 0x32
	x.PictureCodeMode = 0x31
	x.ReservedWord2 = []byte{0x00, 0x00}
	x.Width = []byte{0x0C, 0x00}  //宽：96/8=12 也就是0x0C
	x.Height = []byte{0x18, 0x00} //高：24 也就是0x18
	x.ReservedWord3 = 0x00
	x.ControlCode1 = []byte{0xFF, 0x00}
	x.ControlCode3 = []byte{0x01, 0x00, 0x01, 0x00}
	x.ReservedWord4 = []byte{0x00, 0x00}

	buf.Write(x.MaterialId)
	buf.WriteByte(x.Separator)
	buf.WriteByte(x.DisplayMode)
	buf.WriteByte(x.DisplaySpeed)
	buf.WriteByte(x.StopTime)
	buf.Write(x.PlayingPeriod)
	buf.Write(x.MaterialAttribLen)
	buf.Write(x.MaterialStartFlag)
	buf.WriteByte(x.ReservedWord1)
	buf.WriteByte(x.TextRotation)
	buf.WriteByte(x.MaterialAttrib)
	buf.WriteByte(x.MaterialStorageMode)
	buf.WriteByte(x.MaterialUpdateMode)
	buf.WriteByte(x.TextStartSign)
	buf.WriteByte(x.ScreenColor)
	buf.WriteByte(x.PictureCodeMode)
	buf.Write(x.ReservedWord2)
	buf.Write(x.Width)
	buf.Write(x.Height)
	buf.WriteByte(x.CharacterColor)
	buf.WriteByte(x.TextSize)
	buf.WriteByte(x.ReservedWord3)
	buf.Write(x.MaterialContentLen)
	buf.Write(x.MaterialContent)
	buf.Write(x.ControlCode1)
	buf.Write(x.ControlCode2)
	buf.Write(x.ControlCode3)
	buf.Write(x.ReservedWord4)
	return buf
}

func GetNowDate() (dateSlice [16]int) {
	now := time.Now()
	year, month, day := now.Date()
	hour, minute, second := now.Clock()
	weekday := int(now.Weekday()) // 0表示星期天，1表示星期一，依此类推
	if weekday == 0 {
		weekday = 7 // 将星期天设为07
	}
	// 格式化
	Y := fmt.Sprintf("%d", year)
	M := fmt.Sprintf("%02d", month)    // 将月份转换为两位数字
	D := fmt.Sprintf("%02d", day)      // 将日期转换为两位数字
	H := fmt.Sprintf("%02d", hour)     // 将小时转换为两位数字
	Min := fmt.Sprintf("%02d", minute) // 将分钟转换为两位数字
	S := fmt.Sprintf("%02d", second)   // 将秒数转换为两位数字
	W := fmt.Sprintf("%02d", weekday)  // 将星期几转换为两位数字

	dateStr := Y + M + D + W + H + Min + S
	for i, _ := range dateStr {
		num, _ := strconv.Atoi(string(dateStr[i]))
		dateSlice[i] = num
	}
	return dateSlice
}

func Utf8ToGbk(s []byte) ([]byte, uint8, error) {
	reader := transform.NewReader(bytes.NewReader(s), simplifiedchinese.GBK.NewEncoder())
	d, e := ioutil.ReadAll(reader)
	u := uint8(len(d))
	if e != nil {
		return nil, u, e
	}
	return d, u, nil
}

// 传入数字字符串给每一项加0x30
func EachItemAdd(strArr string) []byte {
	var byteArr = make([]byte, len(strArr))
	for i, _ := range strArr {
		num, _ := strconv.Atoi(string(strArr[i]))
		byteArr[i] = byte(num) + 0x30
	}
	return byteArr
}

// 获取字节数组(低字节在前，高字节在后，要倒转)
func GetBytesArrYes(param uint8, ByteLen int) []byte {
	byteArray := make([]byte, ByteLen)
	// 将输入的整数转换为字节并存储在字节数组中
	if ByteLen >= 4 {
		binary.BigEndian.PutUint32(byteArray[ByteLen-4:], uint32(param))
	} else {
		for i := 0; i < ByteLen; i++ {
			byteArray[ByteLen-1-i] = byte(param >> (8 * i)) // 右移并放置到正确位置
		}
	}
	return Rotate(byteArray)
}

// 获取字节数组(低字节在后，高字节在前，不需要倒转)
func GetBytesArrNo(param uint8, ByteLen int) []byte {
	byteArray := make([]byte, ByteLen)
	// 将输入的整数转换为字节并存储在字节数组中
	if ByteLen >= 4 {
		binary.BigEndian.PutUint32(byteArray[ByteLen-4:], uint32(param))
	} else {
		for i := 0; i < ByteLen; i++ {
			byteArray[ByteLen-1-i] = byte(param >> (8 * i)) // 右移并放置到正确位置
		}
	}
	return byteArray
}

// 低位字节在前，高位字节在后
func Rotate(ss []byte) []byte {
	ret := make([]byte, len(ss))
	copy(ret, ss)
	left, rigth := 0, 0
	if len(ret)%2 == 0 {
		left = len(ret)/2 - 1
		rigth = len(ret) / 2
	} else {
		left = len(ret)/2 - 1
		rigth = len(ret)/2 + 1
	}
	for ; left >= 0 || rigth <= len(ret)-1; left, rigth = left-1, rigth+1 {
		ret[left], ret[rigth] = ret[rigth], ret[left]
	}
	return ret
}