//此文件实现将控制命令封装成协议，具体协议内容请看：
//链接：http://note.youdao.com/noteshare?id=dabda6c613adef7a416bd2625cd770a1

//bcc校验码计算
//arry: 要计算的数组
//返回计算协议中校验位的校验码
function calBcc(arry) {
  var bcc = 0;
  for (var i = 0; i < arry.length; i++) {
    bcc ^= arry[i];
  }
  return bcc;
}

//数组打印，调试用
function PrintArry(data) {
  var str = '';

  for (var i = 0; i < data.length; i++) {
    str = str + data[i].toString(16).padStart(2, '0');
  }

  str = str.toUpperCase();
  return str;
}

//sn:板卡sn号，stirng
//type：数据类型，数字
//jsonCmd: json命令
//返回值：生成一个Uint8Array，通过websocket发送给板卡
function makeFrame(sn, dataType, jsonCmd) {
  var index = 0;
  var dataLen = jsonCmd.length;
  var frameLen = dataLen + 26;
  var outPut = new Uint8Array(frameLen);
  outPut[index++] = 0x68;
  outPut[index++] = (dataLen & 0xff000000) >> 24;
  outPut[index++] = (dataLen & 0x00ff0000) >> 16;
  outPut[index++] = (dataLen & 0x0000ff00) >> 8;
  outPut[index++] = dataLen & 0x000000ff;
  outPut[index++] = 0; //类型为client

  //sn号赋值，string转ascii
  for (var i = 0; i < sn.length; i++) {
    outPut[index++] = sn[i].charCodeAt();
  }

  outPut[index++] = dataType; //指定数据类型为json
  //json string转ascii
  for (var i = 0; i < jsonCmd.length; i++) {
    outPut[index++] = jsonCmd[i].charCodeAt();
  }

  var bccBuffer = outPut.slice(1, frameLen - 3 + 1); //忽略协议头和协议尾
  outPut[index++] = calBcc(bccBuffer);
  outPut[index++] = 0x16;
  //console.log("打印数组:%s", PrintArry(outPut));
  // return PrintArry(outPut);//C# 转发器专用
  return outPut;
}

//{"data":{"keyCode":"25"},"event":"keyCode"}
//触发键盘事件, code表示键盘值
function ExexuteKeyDown(code) {
  var jsonObj = { data: { keyCode: code }, event: 'keyCode' };
  var json = JSON.stringify(jsonObj);
  var sn = 'RK3923C1201900139';
  return makeFrame(sn, 0, json);
}
//触发鼠标按下事件，x：x坐标， y：y坐标

function ExexuteMouseDown(x, y) {
  var jsonObj = {
    data: { action: 0, count: 1, pointerId: 0, x: x, y: y },
    event: '0',
  };
  var json = JSON.stringify(jsonObj);
  var sn = 'RK3923C1201900139';
  return makeFrame(sn, 0, json);
}
//触发鼠标移动事件，x：x坐标， y：y坐标
function ExexuteMouseMove(x, y) {
  var jsonObj = {
    data: { action: 2, count: 1, pointerId: 0, x: x, y: y },
    event: '2',
  };
  var json = JSON.stringify(jsonObj);
  var sn = 'RK3923C1201900139';
  return makeFrame(sn, 0, json);
}
//触发鼠标抬起事件，x：x坐标， y：y坐标
function ExexuteMouseUp(x, y) {
  var jsonObj = {
    data: { action: 1, count: 1, pointerId: 0, x: x, y: y },
    event: '1',
  };
  var json = JSON.stringify(jsonObj);
  var sn = 'RK3923C1201900139';
  return makeFrame(sn, 0, json);
}
function ExexuteKeyBoard(keycode) {
  // 187:虚拟按键菜单键,3:虚拟按键home键,4:虚拟按键返回键,24:音量增大,25:音量减小
  var jsonObj = { data: { keyCode: keycode.toString() }, type: 'keyCode' };
  return JSON.stringify(jsonObj);
}

function makeFrameExtend(sn, dataType, body) {
  var index = 0;
  var dataLen = body.length;
  var frameLen = dataLen + 26;
  var outPut = new Uint8Array(frameLen);
  outPut[index++] = 0x68;
  outPut[index++] = (dataLen & 0xff000000) >> 24;
  outPut[index++] = (dataLen & 0x00ff0000) >> 16;
  outPut[index++] = (dataLen & 0x0000ff00) >> 8;
  outPut[index++] = dataLen & 0x000000ff;
  outPut[index++] = 0; //类型为client

  //sn号赋值，string转ascii
  for (var i = 0; i < sn.length; i++) {
    outPut[index++] = sn[i].charCodeAt();
  }

  outPut[index++] = dataType; //指定数据类型为json
  //json string转ascii
  for (var i = 0; i < body.length; i++) {
    outPut[index++] = body[i];
  }

  var bccBuffer = outPut.slice(1, frameLen - 3 + 1); //忽略协议头和协议尾
  outPut[index++] = calBcc(bccBuffer);
  outPut[index++] = 0x16;
  //var str = PrintArry(outPut);
  //console.log("打印数组:%s", PrintArry(outPut));
  //return PrintArry(outPut);
  return outPut;
}

//根据报文识别屏幕方向, 0横屏，1竖屏
function CheckScreenDirection(data) {
  if (data[0] == 0 && data[1] == 0 && data[2] == 0 && data[3] == 1) {
    if (data[4] == 1 && data[5] == 1) {
      if (data[6] == 1) {
        screen = data[7];
        return screen;
      }
    }
  }
}

var emptyCount = 0;

function GetEmptyFrame() {
  var emptyFrame = new Uint8Array([
    0xff, 0xf1, 0x50, 0x80, 0x12, 0x5f, 0xfc, 0x21, 0x1a, 0xc8, 0x01, 0x27,
    0xfc, 0xc0, 0x00, 0x7e, 0x03, 0x10, 0x40, 0x63, 0x3d, 0x77, 0xe2, 0xb6,
    0xe3, 0x6e, 0x00, 0x37, 0x56, 0x78, 0xeb, 0x70, 0xab, 0xc5, 0x58, 0x08,
    0x59, 0x76, 0xf0, 0x47, 0x3d, 0x23, 0x6c, 0xa6, 0x2b, 0x59, 0x4e, 0x9c,
    0xe0, 0x23, 0x1c, 0x2d, 0x74, 0xcb, 0xe2, 0xfc, 0x77, 0x7d, 0x26, 0x13,
    0xc3, 0x04, 0x40, 0x02, 0x60, 0xf6, 0x03, 0x20, 0x80, 0xc7, 0x9a, 0x11,
    0x0e, 0x9b, 0xda, 0xa0, 0x84, 0x00, 0x2a, 0x95, 0x4a, 0x1e, 0x74, 0xa5,
    0x40, 0x2a, 0xca, 0xa8, 0xca, 0xf0, 0xf2, 0x1e, 0xa8, 0x77, 0x86, 0xa0,
    0x62, 0x8c, 0xb8, 0x5f, 0xa6, 0x67, 0xbf, 0x0d, 0x27, 0x8b, 0xf9, 0x58,
    0xbd, 0xe3, 0x2d, 0x0c, 0xbf, 0x48, 0x3c, 0xfd, 0x70, 0x78, 0x5e, 0xa9,
    0x0b, 0x24, 0x9c, 0x13, 0x98, 0xa4, 0xa0, 0x6e, 0xca, 0xaa, 0x7a, 0x88,
    0xa5, 0x0c, 0x2e, 0x83, 0x59, 0x02, 0x24, 0x01, 0x41, 0x03, 0x92, 0x10,
    0x40, 0x07,
  ]);
  return emptyFrame;
}

//查询屏幕方向
function GetScreenState() {
  var sn = 'RK3923C1201900139';
  var outPut = new Uint8Array([0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x02]);
  return makeFrameExtend(sn, 5, outPut);
}

//生成鉴权报文
function VerifyCode(sn, code) {
  var len = code.length + 1;
  var codeBuffer = new TextEncoder('utf-8').encode(code); //获取字符串ascii码
  var buffer = new Uint8Array(len);
  buffer[0] = 0x04;

  for (var i = 0; i < codeBuffer.length; i++) {
    buffer[i + 1] = codeBuffer[i];
  }

  return makeFrameExtend(sn, 6, buffer);
}

//
function CheckVerifyCode(data) {
  var dataLen = data.length - 26;
  var body = data.slice(24, 24 + dataLen);
  console.log('打印:' + PrintArry(body));

  if (body[3] == 0x03) {
    return true;
  }

  return false;
}

//通道配置
function ConfigChannel(sn, channelName) {
  var chanelBuffer = new TextEncoder('utf-8').encode(channelName);
  var outPut = [];
  outPut.push(0x07);

  for (var i = 0; i < chanelBuffer.length; i++) {
    outPut.push(chanelBuffer[i]);
  }
  return makeFrameExtend(sn, 6, outPut);
}

function OpenFileLog(sn) {
  var outPut = new Uint8Array([0x01]);
  return makeFrameExtend(sn, 7, outPut);
}

//多端登录json 汇报生成
function makeMultiLogin(sn, jsonData) {
  var jsonObj = {
    type: 3,
    data: jsonData,
  };

  var jsonStr = JSON.stringify(jsonObj);
  var outPut = new TextEncoder('utf-8').encode(jsonStr);
  return makeFrameExtend(sn, 0x0d, outPut);
}

//统计登录信息
function makeStatistics(sn, jsonData) {
  var jsonObj = {
    type: 4,
    data: jsonData,
  };

  var jsonStr = JSON.stringify(jsonObj);
  var outPut = new TextEncoder('utf-8').encode(jsonStr);
  return makeFrameExtend(sn, 0x0d, outPut);
}

//多端登录数据解析
function checkMultiLoginInfo(input) {
  var dataLen = input.length - 26; //得到json 长度
  var jsonHex = input.slice(24, 24 + dataLen); //截取json hex二进制数据
  var jsonStr = new TextDecoder('utf-8').decode(jsonHex);
  console.log('取得json 字符串:' + jsonStr);
  var jsonObj = JSON.parse(jsonStr);
  return jsonObj;
}

//切换清晰度
function makeSharpness(level) {
  var sn = 'RK3923C1201900139';
  var jsonObj = {
    type: 2,
    data: { definition: level, clientType: 'h5', sceneType: 'cloudPhone' },
  };
  var jsonStr = JSON.stringify(jsonObj);
  var outPut = new TextEncoder('utf-8').encode(jsonStr);
  return makeFrameExtend(sn, 0xd, outPut);
}

//I 帧请求报文生成
function RequestIFrame() {
  var sn = 'RK3923C1201900139';
  var outPut = new Uint8Array([0x20]);
  return makeFrameExtend(sn, 6, outPut);
}