#include <TM1637Display.h>
#define I2C_ADDR    0x27 

/* ======== USER SETTINGS =========== */
// special effects
#define ENABLE_TICK_SOUND        true

// Define the connections pins for  display
#define CLK 6
#define DIO 7

#define LED 0

// Define other pin connections
#define BUZZER  9

int duration;      // Duration in seconds   -   30

// Create display object  of type TM1637Display:
TM1637Display display = TM1637Display(CLK, DIO);

//  Set the individual segments for the word displays:
const uint8_t seg_end[] =  {
  SEG_A | SEG_D | SEG_E | SEG_F | SEG_G,         // E
  SEG_C | SEG_E |  SEG_G,                         // n
  SEG_B | SEG_C | SEG_D | SEG_E | SEG_G,          // d
  0x00                                           // All off
};

const  uint8_t seg_go[] = {
  SEG_A | SEG_B | SEG_C | SEG_D | SEG_F | SEG_G,// g
  SEG_C | SEG_D | SEG_E | SEG_G,                  // o
  0x00,                                           //  All off
  0x00                                           // All off
};



void  setup() {
  pinMode(BUZZER, OUTPUT);  
  pinMode(LED, OUTPUT); 
  display.setBrightness(2);   //  0 to 7 change if required
  ShowTime(30);
}

void loop() {
  ShowTime(717);
  digitalWrite(LED, HIGH);
  //TimeDuration(30);
  digitalWrite(LED, LOW);
  delay(10000);
}


void  TimeDuration(int duration) {
  // While loop will continue until time up
  unsigned long  startTime = millis();
  unsigned long timer = 1000 * duration;
  // Repeatedly  check if time is up
  while ((millis() - startTime) <= timer) {
    // Calculate  time elapsed in seconds
    int elapsed = int((millis() - startTime) / 1000);
    // Only start to display countdown after 3 seconds
    if ((millis() - startTime)  > 0000) {
      ShowTime(duration - elapsed);
      tone(BUZZER, 1300, 150);
      delay(1000);
    }
  }


  display.clear();
  // display.setSegments(seg_end);
  // Wait 5 seconds and reset display
  // delay(5000);
  // Show duration for  next player
  ShowTime(duration);
}

// void ShowTime(int value) {
//   static  int lastTime;
//   // Update the display if time has changed
//   if (lastTime !=  value) {
//     lastTime = value;
//     int iSeconds  = value;
//     // Show on 4 digit display
//     uint16_t number  = iSeconds;
//     display.showNumberDecEx(number, 0b01000000,  true, 4, 0);
//   }
// }

void ShowTime(int value){
static  int lastTime;
// Update the display if time has changed
  if (lastTime !=  value) {
    lastTime = value;
    int iMinutes = value / 60;
    int iSeconds  = value - (iMinutes * 60);
    // Show on 4 digit display
    uint16_t number  = iMinutes * 100 + iSeconds;
    display.showNumberDecEx(number, 0b01000000,  true, 4, 0);    
  }
}