// Decode uplink function.
//
// Input is an object with the following fields:
// - bytes = Byte array containing the uplink payload, e.g. [255, 230, 255, 0]
// - fPort = Uplink fPort.
// - variables = Object containing the configured device variables.
//
// Output must be an object with the following fields:
// - data = Object representing the decoded payload.
function decodeUplink(input) {
  var bytes=input.bytes;
  
  if(bytes.length != 11) {
    return {"data": {}};
  }
  
  //Payload Formats of LT33222 or LT22222 Deceive
  var hardware= (bytes[10] & 0xC0)>>6;
  var mode0= bytes[10] & 0xff;
  var mode= bytes[10] & 0x3f;
  var decode = {};
  
  if(hardware=='0')
  {
    decode.Hardware_mode="LT33222";
    decode.DO3_status=(bytes[8] &0x04)? false:true; // "L":"H";
    if(mode0=='1')
    {
    	decode.DI3_status= (bytes[8] &0x20)? true:false; // "H":"L"; 
    }
  }
  else if(hardware=='1')
  {
    decode.Hardware_mode= "LT22222";
  }
  
  if(mode!=6)
  {
    decode.DO1_status= (bytes[8] &0x01)? true:false; // "L":"H";
    decode.DO2_status= (bytes[8] &0x02)? true:false; // "L":"H";
    decode.RO1_status= (bytes[8] &0x80)? true:false; // "ON":"OFF";
    decode.RO2_status= (bytes[8] &0x40)? true:false; // "ON":"OFF";
    if(mode!=1)
    {
      if(mode!=5)
      {
       decode.Count1_times= (bytes[0]<<24 | bytes[1]<<16 | bytes[2]<<8 | bytes[3]);
      }
      decode.First_status= (bytes[8] &0x20)? true:false; // "Yes":"No";
    }
  }
  
  if(mode=='1')
  {
    decode.Work_mode= "2ACI+2AVI";
    decode.AVI1_V= parseFloat(((bytes[0]<<24>>16 | bytes[1])/1000).toFixed(3));
    decode.AVI2_V= parseFloat(((bytes[2]<<24>>16 | bytes[3])/1000).toFixed(3));
    decode.ACI1_mA= parseFloat(((bytes[4]<<24>>16 | bytes[5])/1000).toFixed(3));
    decode.ACI2_mA= parseFloat(((bytes[6]<<24>>16 | bytes[7])/1000).toFixed(3));
    decode.DI1_status= (bytes[8] &0x08)? true:false; // "H":"L";
    decode.DI2_status= (bytes[8] &0x10)? true:false; // "H":"L"
  }
  else if(mode=='2')
  {
    decode.Work_mode= "Count mode 1";
    decode.Count2_times= (bytes[4]<<24 | bytes[5]<<16 | bytes[6]<<8 | bytes[7]);
  }
  else if(mode=='3')
  {
    decode.Work_mode= "2ACI+1Count";
    decode.ACI1_mA= parseFloat(((bytes[4]<<24>>16 | bytes[5])/1000).toFixed(3));
    decode.ACI2_mA= parseFloat(((bytes[6]<<24>>16 | bytes[7])/1000).toFixed(3));
  }
  else if(mode=='4')
  {
    decode.Work_mode= "Count mode 2";
    decode.Acount_times= (bytes[4]<<24 | bytes[5]<<16 | bytes[6]<<8 | bytes[7]);
  }
  else if(mode=='5')
  {
    decode.Work_mode= " 1ACI+2AVI+1Count";
    decode.AVI1_V= parseFloat(((bytes[0]<<24>>16 | bytes[1])/1000).toFixed(3));
    decode.AVI2_V= parseFloat(((bytes[2]<<24>>16 | bytes[3])/1000).toFixed(3));
    decode.ACI1_mA= parseFloat(((bytes[4]<<24>>16 | bytes[5])/1000).toFixed(3));
    decode.Count1_times= bytes[6]<<8 | bytes[7];
  }
  else if(mode=='6')
  {
    decode.Work_mode= "Exit mode"; 
    decode.Mode_status= bytes[9] ? "True":"False";
    decode.AV1L_flag= (bytes[0] &0x80)? true: false; // "True":"False";
    decode.AV1H_flag= (bytes[0] &0x40)? true: false; // "True":"False";
    decode.AV2L_flag= (bytes[0] &0x20)? true: false; // "True":"False";
    decode.AV2H_flag= (bytes[0] &0x10)? true: false; // "True":"False";   
    decode.AC1L_flag= (bytes[0] &0x08)? true: false; // "True":"False";
    decode.AC1H_flag= (bytes[0] &0x04)? true: false; // "True":"False";
    decode.AC2L_flag= (bytes[0] &0x02)? true: false; // "True":"False";
    decode.AC2H_flag= (bytes[0] &0x01)? true: false; // "True":"False";   
    decode.AV1L_status= (bytes[1] &0x80)? true: false; // "True":"False";
    decode.AV1H_status= (bytes[1] &0x40)? true: false; // "True":"False";
    decode.AV2L_status= (bytes[1] &0x20)? true: false; // "True":"False";
    decode.AV2H_status= (bytes[1] &0x10)? true: false; // "True":"False";   
    decode.AC1L_status= (bytes[1] &0x08)? true: false; // "True":"False";
    decode.AC1H_status= (bytes[1] &0x04)? true: false; // "True":"False";
    decode.AC2L_status= (bytes[1] &0x02)? true: false; // "True":"False";
    decode.AC2H_status= (bytes[1] &0x01)? true: false; // "True":"False";   
    decode.DI2_status= (bytes[2] &0x08)? true: false; // "True":"False";
    decode.DI2_flag= (bytes[2] &0x04)? true: false; // "True":"False";
    decode.DI1_status= (bytes[2] &0x02)? true: false; // "True":"False";
    decode.DI1_flag= (bytes[2] &0x01)? true: false; // "True":"False";   
  }
  
  return {"data": decode};
}

// Encode downlink function.
//
// Input is an object with the following fields:
// - data = Object representing the payload that must be encoded.
// - variables = Object containing the configured device variables.
//
// Output must be an object with the following fields:
// - bytes = Byte array containing the downlink payload.
function encodeDownlink(input) {
  var obj=input.data;
  
  // 11: No action, 00: Off, 01: On
  if(obj["method"] === "setRO1Value")
  {
    if(obj["params"])
    {      
      return {bytes: [0x03,0x01,0x11]}; // On
      // return [0x05,0x01,0x12,0x07,0xD0]; // On 2s and back to original state, 0x07D0 = 2000ms = 2s
      // return [0x05,0x00,0x12,0x07,0xD0]; // On 2s and back to inverter state, 0x07D0 = 2000ms = 2s
    }
    else
    {
      return {bytes: [0x03,0x00,0x11]}; // Off
      // return [0x05,0x01,0x02,0x07,0xD0];  // On 2s and back to original state, 0x07D0 = 2000ms = 2s
    }
  }
  else if(obj["method"] === "setRO2Value")
  {
    if(obj["params"])
    {      
      return {bytes: [0x03,0x11,0x01]}; // On
      // return [0x05,0x01,0x21,0x07,0xD0]; // On 2s and back to original state, 0x07D0 = 2000ms = 2s
    }
    else
    {
      return {bytes: [0x03,0x11,0x00]}; // Off
      // return [0x05,0x01,0x20,0x07,0xD0]; // On 2s and back to original state, 0x07D0 = 2000ms = 2s
    }
  }
  else if(obj["method"] === "setDO1Value")
  {
    if(obj["params"])
    {      
      return {bytes: [0x02,0x01,0x11,0x11]}; // On
    }
    else
    {
      return {bytes: [0x02,0x00,0x11,0x11]}; // Off
    }
  }
  else if(obj["method"] === "setDO2Value")
  {
    if(obj["params"])
    {      
      return {bytes: [0x02,0x11,0x01,0x11]}; // On
    }
    else
    {
      return {bytes: [0x02,0x11,0x00,0x11]}; // Off
    }
  }
  // Should not reach here
  return {bytes: []};
}