#include <WaspLoRaWAN.h>

// socket to use
//////////////////////////////////////////////
uint8_t socket = SOCKET0;
//////////////////////////////////////////////

// Device parameters for Back-End registration
////////////////////////////////////////////////////////////
char DEVICE_EUI[]  = "****************";
char APP_EUI[] = "****************";
char APP_KEY[] = "********************************";
////////////////////////////////////////////////////////////

// Define port to use in Back-End: from 1 to 223
uint8_t PORT = 1;

// Define data payload to send (maximum is up to data rate)
 byte data[3];


// variable
uint8_t error;
uint8_t error_config = 0;




void setup() 
{
  

  USB.ON();
  USB.println(F("LoRaWAN example - Send Confirmed packets (ACK)\n"));


  USB.println(F("------------------------------------"));
  USB.println(F("Module configuration"));
  USB.println(F("------------------------------------\n"));


  //////////////////////////////////////////////
  // 1. Switch on
  //////////////////////////////////////////////

  error = LoRaWAN.ON(socket);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("1. Switch ON OK"));     
  }
  else 
  {
    USB.print(F("1. Switch ON error = ")); 
    USB.println(error, DEC);
    error_config = 1;
  }
  
  
  //////////////////////////////////////////////
  // 2. Change data rate
  //////////////////////////////////////////////

  error = LoRaWAN.setDataRate(3);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("2. Data rate set OK"));     
  }
  else 
  {
    USB.print(F("2. Data rate set error= ")); 
    USB.println(error, DEC);
     error_config = 2;
  }


  //////////////////////////////////////////////
  // 3. Set Device EUI
  //////////////////////////////////////////////

  error = LoRaWAN.setDeviceEUI(DEVICE_EUI);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("3. Device EUI set OK"));     
  }
  else 
  {
    USB.print(F("3. Device EUI set error = ")); 
    USB.println(error, DEC);
    error_config = 3;
  }

  //////////////////////////////////////////////
  // 4. Set Application EUI
  //////////////////////////////////////////////

  error = LoRaWAN.setAppEUI(APP_EUI);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("4. Application EUI set OK"));     
  }
  else 
  {
    USB.print(F("4. Application EUI set error = ")); 
    USB.println(error, DEC);
    error_config = 4;
  }

  //////////////////////////////////////////////
  // 5. Set Application Session Key
  //////////////////////////////////////////////

  error = LoRaWAN.setAppKey(APP_KEY);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("5. Application Key set OK"));     
  }
  else 
  {
    USB.print(F("5. Application Key set error = ")); 
    USB.println(error, DEC);
    error_config = 5;
  }

  /////////////////////////////////////////////////
  // 6. Join OTAA to negotiate keys with the server
  /////////////////////////////////////////////////
  
  error = LoRaWAN.joinOTAA();

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("6. Join network OK"));         
  }
  else 
  {
    USB.print(F("6. Join network error = ")); 
    USB.println(error, DEC);
    error_config = 6;
  }


  //////////////////////////////////////////////
  // 7. Save configuration
  //////////////////////////////////////////////

  error = LoRaWAN.saveConfig();

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("7. Save configuration OK"));     
  }
  else 
  {
    USB.print(F("7. Save configuration error = ")); 
    USB.println(error, DEC);
    error_config = 7;
  }

  //////////////////////////////////////////////
  // 8. Switch off
  //////////////////////////////////////////////

  error = LoRaWAN.OFF(socket);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("8. Switch OFF OK"));     
  }
  else 
  {
    USB.print(F("8. Switch OFF error = ")); 
    USB.println(error, DEC);
    error_config = 8;
  }
  
  if (error_config == 0){
    USB.println(F("\n---------------------------------------------------------------"));
    USB.println(F("Module configured"));
    USB.println(F("After joining through OTAA, the module and the network exchanged "));
    USB.println(F("the Network Session Key and the Application Session Key which "));
    USB.println(F("are needed to perform communications. After that, 'ABP mode' is used"));
    USB.println(F("to join the network and send messages after powering on the module"));
    USB.println(F("---------------------------------------------------------------\n"));
    USB.println();  
  }
  else{
    USB.println(F("\n---------------------------------------------------------------"));
    USB.println(F("Module not configured"));
    USB.println(F("Check OTTA parameters and reestart the code."));
    USB.println(F("If you continue executing the code, frames will not be sent."));
    USB.println(F("\n---------------------------------------------------------------"));
  }  
}




void loop() 
{

  //////////////////////////////////////////////
  // 1. Switch on
  //////////////////////////////////////////////

  error = LoRaWAN.ON(socket);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("1. Switch ON OK"));     
  }
  else 
  {
    USB.print(F("1. Switch ON error = ")); 
    USB.println(error, DEC);
  }


  //////////////////////////////////////////////
  // 2. Join network
  //////////////////////////////////////////////

  error = LoRaWAN.joinABP();

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("2. Join network OK"));     

    //////////////////////////////////////////////
    // 3. Send Confirmed packet 
    //////////////////////////////////////////////
    int x,y=0;
    x  = 1;
    y = 1;
    data[0] = x ;
    data[1] = y;

      USB.println(F("X"));    
    USB.println(x);
    
      USB.println(F("Y")); 
    USB.println(y);
 
    error= LoRaWAN.sendConfirmed(PORT,data,3);
   

    // Error messages:
    /*
     * '6' : Module hasn't joined a network
     * '5' : Sending error
     * '4' : Error with data length   
     * '2' : Module didn't response
     * '1' : Module communication error   
     */
    // Check status
    if( error == 0 ) 
    {
      USB.println(F("3. Send Confirmed packet OK"));  
      if (LoRaWAN._dataReceived == true)
      { 
        USB.print(F("   There's data on port number "));
        USB.print(LoRaWAN._port,DEC);
        USB.print(F(".\r\n   Data: "));
        USB.println(LoRaWAN._data);
      }   
    }
    else 
    {
      USB.print(F("3. Send Confirmed packet error = ")); 
      USB.println(error, DEC);
    } 
  }
  else 
  {
    USB.print(F("2. Join network error = ")); 
    USB.println(error, DEC);
  }


  //////////////////////////////////////////////
  // 4. Switch off
  //////////////////////////////////////////////

  error = LoRaWAN.OFF(socket);

  // Check status
  if( error == 0 ) 
  {
    USB.println(F("4. Switch OFF OK"));     
  }
  else 
  {
    USB.print(F("4. Switch OFF error = ")); 
    USB.println(error, DEC);
    USB.println();
  }


  delay(10000);
}