#include <Arduino.h>
#include <TM1637Display.h>

#define CLK1 2
#define DIO1 3
#define CLK2 4
#define DIO2 5

#define R_CLK 6
#define R_DT 7
#define R_SW 10

int b1 = 9;
int b2 = 8;

// int t1 = 1000;
// int t2 = 1000;

TM1637Display display1(CLK1, DIO1);
TM1637Display display2(CLK2, DIO2);

int counter = 1000; 
int currentStateCLK;
int lastStateCLK;
int stateDT;
unsigned long lastButtonPress = 0;



void setup() {
  // put your setup code here, to run once:
  pinMode(b1,INPUT_PULLUP);
  pinMode(b2,INPUT_PULLUP);

  pinMode(R_CLK, INPUT);
  pinMode(R_DT, INPUT);
  pinMode(R_SW, INPUT_PULLUP);

  lastStateCLK = digitalRead(R_CLK);

  display1.setBrightness(0x0f);
  display2.setBrightness(0x0f);
}

void loop() {
  // put your main code here, to run repeatedly: && currentStateCLK == 1

  int t1 = 1000;
  int t2 = 1000; 

  display2.showNumberDecEx(t2,0b01000000);
  display1.showNumberDecEx(t1,0b01000000); 
  while (true) {
    
    currentStateCLK = digitalRead(R_CLK);
    stateDT = digitalRead(R_DT);
    if (currentStateCLK != lastStateCLK && currentStateCLK == 1) {
    // If the DT state is different than the CLK state then
    // the encoder is rotating CCW so decrement
      if (digitalRead(R_DT) == 0) {
        t1 -= 50;
        t2 -= 50;
        
      } else {
      // Encoder is rotating CW so increment
        t1 += 50;
        t2 += 50;
      }
      display2.showNumberDecEx(t2,0b01000000);
      display1.showNumberDecEx(t1,0b01000000);   
    }
     
    lastStateCLK = currentStateCLK;
    if (digitalRead(R_SW) == 0) {
       break;
      }
  }
  
  // display2.showNumberDecEx(t2,0b01000000);
  while (t1 != 0 & t2 != 0) {
    while (t1 > 0) {
      display1.showNumberDecEx(t1,0b01000000);
      delay(1000);
      t1 -= 1;
      if (digitalRead(b1) == 0) {
        break;
      }
    }
    
    while (t2 > 0) {
      display2.showNumberDecEx(t2,0b01000000);
      delay(1000);
      t2 -= 1;
      if (digitalRead(b2) == 0) {
        break;
      }
    }
  }
  delay(5000);
}