/*
  Arduino | coding-help
  I am trying to make a scoreboard using a Arduino
  loki — 7/7/24 at 3:11 PM
  I am trying to make a scoreboard using a Arduino and
  a four digit seven segment display and a 74HC595
  I think I have the hardware made correctly.
  I just can’t get the code to do anything I want to do.
*/

//#include <Arduino.h>

// Pin definitions, redone just to match a layout I had
const int latchPin = A4;
const int clockPin = A5;
const int dataPin = A3;
const int digitPins[] = {12, 9, 10, 11};
const int buttonPins[] = {7, 6, 5, 4};

// Button states
int buttonState[4] = {0, 0, 0, 0};
int lastButtonState[4] = {0, 0, 0, 0};
unsigned long lastDebounceTime[4] = {0, 0, 0, 0};
const unsigned long debounceDelay = 50;

// Scores
int teamAScore = 0;
int teamBScore = 0;

/*
  // Segment data for digits 0-9
  const byte segmentMap[] = {
  0b00111111, // 0
  0b00000110, // 1
  0b01011011, // 2
  0b01001111, // 3
  0b01100110, // 4
  0b01101101, // 5
  0b01111101, // 6
  0b00000111, // 7
  0b01111111, // 8
  0b01101111  // 9
  };
*/

const int SEG_BYTES[] = { // same as your map,
  // but in a b c d e f g dp order
  0xFC, /* 0 */
  0x60, /* 1 */
  0xDA, /* 2 */
  0xF2, /* 3 */
  0x66, /* 4 */
  0xB6, /* 5 */
  0xBE, /* 6 */
  0xE0, /* 7 */
  0xFE, /* 8 */
  0xF6, /* 9 */
  0x00  /* blank */
};

// this combines displayDigit and shiftOutData
// and changes the order of operations
void writeShiftDigit(int digit, int number)  {
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ~SEG_BYTES[number]);
  digitalWrite(latchPin, HIGH);
  digitalWrite(digitPins[digit], HIGH);
  digitalWrite(digitPins[digit], LOW);
}

/*
  // Function to shift out data to the 74HC595
  void shiftOutData(byte data) {
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, data);
  digitalWrite(latchPin, HIGH);
  }

  // Function to display a number on a specific digit
  void displayDigit(int digit, int number) {
  // Select the digit by turning on the corresponding transistor
  for (int i = 0; i < 4; i++) {
    //digitalWrite(digitPins[i], (i == digit) ? LOW : HIGH);
    digitalWrite(digitPins[i], LOW);
  }
  // Send the segment data to the 74HC595
  shiftOutData(segmentMap[number]);
  }
*/

void setup() {
  // Set up pins
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  for (int i = 0; i < 4; i++) {
    pinMode(digitPins[i], OUTPUT);
    digitalWrite(digitPins[i], HIGH);
  }
  for (int i = 0; i < 4; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }

  Serial.begin(9600); // Initialize serial communication for debugging
}

void loop() {
  // Read and debounce buttons
  for (int i = 0; i < 4; i++) {
    int reading = digitalRead(buttonPins[i]);
    if (reading != lastButtonState[i]) {
      lastDebounceTime[i] = millis();
    }
    if ((millis() - lastDebounceTime[i]) > debounceDelay) {
      if (reading != buttonState[i]) {
        buttonState[i] = reading;
        if (buttonState[i] == LOW) {
          if (i == 0 && teamAScore < 99) teamAScore++;
          if (i == 1 && teamAScore > 0) teamAScore--;
          if (i == 2 && teamBScore < 99) teamBScore++;
          if (i == 3 && teamBScore > 0) teamBScore--;
        }
      }
    }
    lastButtonState[i] = reading;
  }

  // Display scores
  //writeShiftDigit(0, 1); // for hardware test
  //writeShiftDigit(1, 2); //
  //writeShiftDigit(2, 3); //
  //writeShiftDigit(3, 4); //
  writeShiftDigit(0, teamAScore / 10);
  writeShiftDigit(1, teamAScore % 10);
  writeShiftDigit(2, teamBScore / 10);
  writeShiftDigit(3, teamBScore % 10);
  /*
    displayDigit(0, teamAScore / 10); // Tens digit for Team A
    delay(10); // Increase delay for better stability
    displayDigit(1, teamAScore % 10); // Units digit for Team A
    delay(10); // Increase delay for better stability
    displayDigit(2, teamBScore / 10); // Tens digit for Team B
    delay(10); // Increase delay for better stability
    displayDigit(3, teamBScore % 10); // Units digit for Team B
    delay(10); // Increase delay for better stability
  */

  // Debugging output
  Serial.print("Team A Score: ");
  Serial.print(teamAScore);
  Serial.print(" | Team B Score: ");
  Serial.println(teamBScore);
}