/*
 * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-button-long-press-short-press
 */

#include <ezButton.h>
#include <avr/io.h>
#include <avr/interrupt.h>

#define PIN_TOGGLE(port, pin) (PORT ## port) ^= (1 << (pin))		//makro na toggle led
//PIN_TOGGLE(B, 5);   // Toggle Pin13 (B5) State       PB5 ak a13

const int SHORT_PRESS_TIME = 2000; // 1000 milliseconds
const int LONG_PRESS_TIME  = 2000; // 1000 milliseconds

ezButton button1(A0, INPUT_PULLUP);  // create ezButton object that attach to pin 7;
ezButton button2(A1, INPUT_PULLUP); 
ezButton button3(A2, INPUT_PULLUP); 
ezButton button4(A3, INPUT_PULLUP); 
ezButton button5(A4, INPUT_PULLUP); 
ezButton button6(A5, INPUT_PULLUP); 
ezButton button7(3, INPUT_PULLUP); 

unsigned long pressedTime  = 0;
unsigned long releasedTime = 0;

const int LED_pin = 13; 	//interní led
const int sekce1 = 12;
const int sekce2 = 11;
const int sekce3 = 10;
const int sekce4 = 9;
const int sekce5 = 8;	
const int sekce6 = 7;
const int sekce7 = 6;
const int MV	 = 3;

int sec;

byte RS;		// bezici sekce 0b0000 0000    0bit MV, 1 - prvni sekce atd
byte STOPALL; 		//vypnutí všech sekci

//  ------------------------ SETUP -----------------------------------------------------------------
void setup() 
{
   Serial.begin(9600);
   button1.setDebounceTime(50); // set debounce time to 50 milliseconds
   button2.setDebounceTime(50);
   button3.setDebounceTime(50);
   button4.setDebounceTime(50);
   button5.setDebounceTime(50);
   button6.setDebounceTime(50);

// ----- IO periferie -------------------------------------------------------   
   pinMode(LED_pin, OUTPUT);
   pinMode(sekce1, OUTPUT);
   pinMode(sekce2, OUTPUT);
   pinMode(sekce3, OUTPUT);
   pinMode(sekce4, OUTPUT);
   pinMode(sekce5, OUTPUT);
   pinMode(sekce6, OUTPUT);
   pinMode(MV, OUTPUT);
   
  
   
// -------  CPU -------------------------------------------------------------  
   cli();				// zákaz vsech prerusení
   TCCR1A = 0;				// reset vitace A
   TCCR1B = 0; 				// reset citace B
   OCR1A = 0xF424;			// porovnavaci registr - zadani hodnoty 62 500
   TCCR1B = (1<<WGM12) | (1<<CS12); 	// delicka hodin
   TIMSK1 = (1<<OCIE1A); 		// povoleni interrupt preteceni citace
   sei();
// -------------------------------------------------------------------------  
  
  
}

void loop() 
{
  button1.loop(); // MUST call the loop() function first
  button2.loop(); 
  button3.loop(); 
  button4.loop(); 
  button5.loop(); 
  button6.loop(); 

  if(button1.isPressed())
    pressedTime = millis();

  if(button1.isReleased()) 
  {
    releasedTime = millis();
    long pressDuration = releasedTime - pressedTime;
    if( pressDuration < SHORT_PRESS_TIME )
      {Serial.println("A short press is detected");
      sec = sec + 20;
      digitalWrite(sekce1, HIGH);
      digitalWrite(MV, HIGH);
      RS = 0b00000011; 			//pomocná promenná že beží sekce 1
      }
    if( pressDuration > LONG_PRESS_TIME )
      {Serial.println("A long press is detected");
      digitalWrite(sekce1, LOW);
      digitalWrite(MV, LOW);
      sec = 0;
      RS = 0b00000000;
     }

     }
  
      if (RS == 0b00000000)
      {
      digitalWrite(sekce1,LOW);
      digitalWrite(MV, LOW);
  }
  
}


void flash()		//  funkce bliknuti_negace led ------------------------------------------------
{
   static boolean output = HIGH;
   digitalWrite(LED_pin, output);
   output = !output;
}



// ----------------OBSLUHA ISR -----------------------------------------
ISR(TIMER1_COMPA_vect)		//obsluha vektoru přerušeni od čítače 1
{
   sec--;			// pricte impuls do citace vterin
   flash();			//neguje led
   if(sec <=0)			//
	 {
	  RS = 0b00000000;
	  sec = 0;
	 }
   
}