/*-----( Import needed libraries )-----*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"


/*-----( Declare Constants and Pin Numbers )-----*/
#define CE_PIN   9
#define CSN_PIN 10


#define DEBUG  0
#define TEST   0

// NOTE: the "LL" at the end of the constant is "LongLong" type
const uint64_t pipe = 0xE8E8F0F0E1LL; // Define the transmit pipe

int row, col;
int colNum = 9;  // X -> Maximum of 10 cols. Maximun packet size 32 bytes
int rowNum = 9; // Y

/*-----( Declare objects )-----*/
RF24 radio(CE_PIN, CSN_PIN); // Create a Radio
/*-----( Declare Variables )-----*/

//uint8_t rgb[ 2 + colNum*3 ]; // CMD + Row + 9 rgb

//uint8_t rgb[ 2 + colNum*3 ]; // CMD + Row + 9 rgb
uint8_t rgb[ 29 ]; // CMD + Row + 9 rgb

int counter = 0;
int inc = 1;
int flag = 0;
int i = 0;

void setup()   /****** SETUP: RUNS ONCE ******/
{
  
  if(DEBUG)
  {
    Serial.begin(57600);
    
    while (!Serial) {
      ; // wait for serial port to connect. Needed for Leonardo only
    }

    Serial.println("working...");
  }

    //delay(5000); // wait for open serial port

  radio.begin();
  printf_begin();
  radio.setDataRate( RF24_250KBPS );  // Try latency with faster speed
  radio.setPALevel( RF24_PA_MAX );
  radio.setPayloadSize(colNum*3 + 2);
  radio.setAutoAck(0);
  radio.openWritingPipe(pipe);
  radio.printDetails();
  


}//--(end setup )---


void loop()   /****** LOOP: RUNS CONSTANTLY ******/
{

  if(TEST)
  {
    //STROBO LED
    if (flag)
      flag = 0;
    else
      flag = 1;

    rgb[0] = 1;
    for(int i=1; i<4; i++)
      rgb[i] = 255*flag;

    radio.startWrite( rgb, sizeof(rgb) );
    delay(100);
  }
  else
  {
    if(MIDIUSB.available() > 0) 
    {
      MIDIEvent e;
      e = MIDIUSB.read();

      if(e.type == 0x04)
      {
        if(e.m1 == 0xF0)
        {
          rgb[0] = e.m2;  // CMD
          rgb[1] = e.m3;  // ROW
          i = 2;
        }
        else
        {
          rgb[i] = e.m1;    // DATA R
          rgb[i+1] = e.m2;  // DATA G
          rgb[i+2] = e.m3;  // DATA B
          i+=3;
        }        

      }
      else if(e.type == 0x05)
      {
        
        if(i<32) // buffer protection
          radio.startWrite( rgb, sizeof(rgb) );
          //radio.startWritePowerUp( rgb, sizeof(rgb) );
          
                  
      /////////////////////////////////////////////////////////////////    
      // ATENTION WITH THIS DELAY! WITH IT WORKS, WITHOUT NO!
      //////////////////////////////////////////////////////////////
    
      if(DEBUG)
      {    
        for(i=0; i< 29 ; i++)
        {
          Serial.print(rgb[i]);
          Serial.print(","); 
        }
        Serial.println();
       
      }
      else  delayMicroseconds(750);
     
       
        //if(rgb[1] == 1) // row 1
        //    analogWrite(5, rgb[2]);  // col1

        //if(DEBUG)
        //  Serial.print(".");
      
      }


//      if(DEBUG)
//      {
//        if(e.type != 0x0F) // timestamp 1 BYTE
//        {
//          //Serial.print("Midi Packet:  ");
//          Serial.print(e.type);
//          Serial.print("\t");
//          Serial.print(e.m1);
//          Serial.print("\t");
//          Serial.print(e.m2);
//          Serial.print("\t");
//          Serial.println(e.m3);
//        }
//
//      }

      //MIDIUSB.flush(); // si se pone se cuelga al poco rato

    }
  }
  

}//--(end main loop )---