//Ali Al-Ghazw
#include "SevSeg.h"
#define RED 11     // Assuming RED LED is connected to GP11
#define YELLOW 12  // Assuming YELLOW LED is connected to GP12
#define GREEN 13   // Assuming GREEN LED is connected to GP13
#define DIGIT1 9   // Assuming DIGIT1 pin is connected to GP9 (if required)

SevSeg sevseg; // Create an instance of the SevSeg object

void setup() {
  // Initialize the 7-segment display
  byte numDigits = 1;
  byte digitPins[] = {DIGIT1}; // Connect DIGIT1 pin to GP9 (if required)
  byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8}; // Segment pins: A, B, C, D, E, F, G

  sevseg.begin(COMMON_ANODE, numDigits, digitPins, segmentPins);
  sevseg.setBrightness(90);

  pinMode(RED, OUTPUT);     // Set the RED LED pin as output
  pinMode(YELLOW, OUTPUT);  // Set the YELLOW LED pin as output
  pinMode(GREEN, OUTPUT);   // Set the GREEN LED pin as output
  pinMode(DIGIT1, OUTPUT);  // Set the DIGIT1 pin as output (if required)

  digitalWrite(DIGIT1, HIGH); // Activate the digit (if required) - for common anode, use HIGH
}

void displayCountdown(int seconds) {
  for (int i = seconds; i >= 0; i--) {
    unsigned long startMillis = millis();
    while (millis() - startMillis < 1000) {
      sevseg.setNumber(i);
      sevseg.refreshDisplay(); // Must run repeatedly to display numbers correctly
      delay(1); // Small delay to prevent locking up the processor
    }
  }
}

void loop() {
  digitalWrite(GREEN, HIGH);  // Turn on GREEN LED
  displayCountdown(3);        // Countdown from 3
  digitalWrite(GREEN, LOW);   // Turn off GREEN LED

  digitalWrite(YELLOW, HIGH); // Turn on YELLOW LED
  displayCountdown(1);        // Countdown from 1
  digitalWrite(YELLOW, LOW);  // Turn off YELLOW LED

  digitalWrite(RED, HIGH);    // Turn on RED LED
  displayCountdown(2);        // Countdown from 2
  digitalWrite(RED, LOW);     // Turn off RED LED

  digitalWrite(YELLOW, HIGH); // Turn on YELLOW LED
  displayCountdown(1);        // Countdown from 1
  digitalWrite(YELLOW, LOW);  // Turn off YELLOW LED
}