#ifndef shield_h_
#define shield_h_

#include "Arduino.h"

#define ON  1
#define OFF  0

#define BUTTON_1_PIN  A1
#define BUTTON_2_PIN  A2
#define BUTTON_3_PIN  A3

#define BEEPER_PIN    3

#define LED_1_PIN     13
#define LED_2_PIN     12
#define LED_3_PIN     11
#define LED_4_PIN     10

#define LED_1         1
#define LED_2         2
#define LED_3         4
#define LED_4         8
#define LED_ALL       15

#define LATCH_DIO     4 // Линия синхронизации данных
#define CLK_DIO       7 // Линия тактирования 
#define DATA_DIO      8 // Линия передачи данных

#define BUTTON_PRESSED_IND        (0 << 6)
#define BUTTON_SHORT_RELEASE_IND  (1 << 6)
#define BUTTON_LONG_PRESSED_IND   (2 << 6)
#define BUTTON_LONG_RELEASE_IND   (3 << 6)

#define BUTTON_1_PRESSED        (1 |  BUTTON_PRESSED_IND)
#define BUTTON_1_SHORT_RELEASE  (1 |  BUTTON_SHORT_RELEASE_IND)
#define BUTTON_1_LONG_PRESSED   (1 |  BUTTON_LONG_PRESSED_IND)
#define BUTTON_1_LONG_RELEASE   (1 |  BUTTON_LONG_RELEASE_IND)

#define BUTTON_2_PRESSED        (2 |  BUTTON_PRESSED_IND)
#define BUTTON_2_SHORT_RELEASE  (2 |  BUTTON_SHORT_RELEASE_IND)
#define BUTTON_2_LONG_PRESSED   (2 |  BUTTON_LONG_PRESSED_IND)
#define BUTTON_2_LONG_RELEASE   (2 |  BUTTON_LONG_RELEASE_IND)

#define BUTTON_3_PRESSED        (3 |  BUTTON_PRESSED_IND)
#define BUTTON_3_SHORT_RELEASE  (3 |  BUTTON_SHORT_RELEASE_IND)
#define BUTTON_3_LONG_PRESSED   (3 |  BUTTON_LONG_PRESSED_IND)
#define BUTTON_3_LONG_RELEASE   (3 |  BUTTON_LONG_RELEASE_IND)

class Shield {
  public:
  void initShield();

  byte getButton();

  void beep(unsigned int on_period = 50,
            unsigned int off_period = 0,
            byte cycles = 0,
            unsigned int loop_cycles = 0,
            unsigned int loop_delay_period = 0
           );

  void blinkLeds(byte led, int millsec, bool turnoff_delay);
  void blinkLeds(byte led1, byte led2, int millsec, bool turnoff_delay);
  void blinkLeds(byte led1, byte led2, byte led3, int millsec, bool turnoff_delay);
  void blinkLeds(int millsec, bool turnoff_delay);

  void writeNumber(byte seg, byte val);
  void writeAlpha(byte seg, byte val);
  void writeDisplay(int val);

  byte AsciiToSegmentValue (byte ascii);

  private:
  byte readButton(byte btn, byte &btnVal);

  // volatile byte m_valButton_1;
  // volatile byte m_valButton_2;
  // volatile byte m_valButton_3;

  // volatile unsigned long m_tm;

  volatile unsigned long m_timerButtonNext;
  volatile unsigned long m_timerButtonTo = 1000;
  volatile unsigned long m_timerButton = 0;

  volatile unsigned long m_timerBeeperNext;
  volatile unsigned long m_timerBeeperTo = 1;
  volatile unsigned long m_timerBeeperOnPeriod = 0;
  volatile unsigned long m_timerBeeperOffPeriod = 0;
  volatile unsigned long m_timerBeeperLoopDelayPeriod = 0;

};

extern Shield MFS;

#endif