#include <EEPROM.h>


#define INPUT_PIN 10

#define TS1_LED 15
#define TS2_LED 17
#define TS3_LED 8
#define C_LED 9 

#define RESET_BUTTON 4


volatile unsigned long totalSeconds = 0;
volatile unsigned long Seconds = 0;

volatile unsigned long TS1 = 5;
volatile unsigned long TS2 = 10;
volatile unsigned long TS3 = 15;

int address = 0;

hw_timer_t *timer = NULL;


void IRAM_ATTR onTimer() {
 if(digitalRead(INPUT_PIN) == HIGH) { totalSeconds++;}
 
}

void IRAM_ATTR RC() {
    totalSeconds = 0; 
    digitalWrite(TS1_LED,LOW);  
    digitalWrite(TS2_LED,LOW); 
    digitalWrite(TS3_LED,LOW);
    EEPROM.write(address, totalSeconds); 
    EEPROM.commit();
}

void IRAM_ATTR DATA_SAVE() {
      EEPROM.write(address, totalSeconds); 
      EEPROM.commit();
}


void setup() {
  EEPROM.begin(127);
  Serial.begin(115200);

  pinMode(TS1_LED, OUTPUT);
  pinMode(TS2_LED, OUTPUT); 
  pinMode(TS3_LED, OUTPUT);

  pinMode(C_LED, OUTPUT);

  pinMode(RESET_BUTTON, INPUT_PULLDOWN);
  pinMode(INPUT_PIN, INPUT_PULLDOWN);

timer = timerBegin(1000000);
timerAttachInterrupt(timer, &onTimer);
timerAlarm(timer, 1000000, true, 0);

attachInterrupt(RESET_BUTTON, RC, RISING);
attachInterrupt(INPUT_PIN, DATA_SAVE, FALLING);

totalSeconds = EEPROM.read(0);
if  (totalSeconds <= 0) {totalSeconds==0;}
if  (totalSeconds >= 20) {totalSeconds==20;}
}

void loop() {

  digitalWrite(C_LED,digitalRead(INPUT_PIN));

   if(totalSeconds >= 5)  {digitalWrite(TS1_LED,HIGH);  }
   if(totalSeconds >= 10) {digitalWrite(TS2_LED,HIGH);  }
   if(totalSeconds >= 15) {digitalWrite(TS3_LED,HIGH);  }
   if(totalSeconds >= 20) {RC();}

Serial.println(totalSeconds);

}