#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Keypad.h>


// LCD
LiquidCrystal_I2C lcd(0x27, 16, 2);  // use correct address from I2C scanner

// Keypad
const byte ROWS = 4; //rows
const byte COLS = 3; //columns

    

    byte rowPins[ROWS] = {1, 2, 42, 41}; // R1-R4
    byte colPins[COLS] = {40, 39, 38}; // C1-C3

    char keys[ROWS][COLS] = {
      {'1','2','3'},
      {'4','5','6'},
      {'7','8','9'},
      {'*','0','#'}
    };

    // Create keypad object
    Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

// LED
const int redLED = 4;

// Buzzer
const int buzzer = 37;





// variables
int gamemode = 0;
int preparationTime = 0;
int gameTime = 0;

int boomTime = 0;
int bombMode = 0;
int bombHold = 0;

int defuseNumber = 0;
int defusemode = 0;
int defuseHoldTime = 0;

//tones
const int enterToneFreq = 800;
const int enterBeepTime = 500;

const int removeToneFreq = 1000;
const int removeBeepTime = 200;

const int clickToneFreq = 1000;
const int clickBeepTime = 50;

//
const int scrollTextSpeed = 1200;

void setup() {
  Serial.begin(115200);
  Wire.begin(17, 18);   // SDA=17, SCL=18

  //LCD initialization
  lcd.init();
  lcd.backlight();

  //LED
  pinMode(redLED, OUTPUT);   // Set pin as output
  

  gamemodeSelection();
}
 
void loop() {
  
}

void gamemodeSelection(){

  unsigned long lastScroll = 0;
  bool showBomb = true;

  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Gamemode: ");
  

  while(gamemode == 0){

    char key = keypad.getKey();
    if (key == '1') {
    Serial.println("gamemode 1");
    gamemode = 1;
    break;
    }
    else if (key == '2'){
    Serial.println("gamemode 2");
    gamemode = 2;
    break;
    }

    // Scroll text without blocking
    if (millis() - lastScroll > scrollTextSpeed) { // 1.2 second interval
      lastScroll = millis();
      lcd.setCursor(0,1);
      if (showBomb) {
        lcd.print("Bomb: 1       ");
      } else {
        lcd.print("Detonator: 2  ");
      }
      showBomb = !showBomb;
    }
  }
  preparation();
}

void preparation() {
  String preparationString = "";

  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Enter Prep Time:");
  lcd.setCursor(0, 1);

  while(preparationTime == 0) {
    char key = keypad.getKey();

    if (key) {
      if (key >= '0' && key <= '9') {
      // Append digit to input string
      preparationString += key;


      tone(buzzer, clickToneFreq);   // 1000 Hz tone
      delay(clickBeepTime);
      noTone(buzzer);       // stop sound

      // Show it on LCD
      lcd.setCursor(0, 1);
      lcd.print(preparationString);
      }   
      else if (key == '*') {
      tone(buzzer, enterToneFreq);
      delay(enterBeepTime);
      noTone(buzzer);
      // Convert to integer
      preparationTime = preparationString.toInt();

      Serial.println("Preparation Time:" + String(preparationTime));

      } 
      else if (key == '#') {
      tone(buzzer, removeToneFreq);   // 1000 Hz tone
      delay(removeBeepTime);
      noTone(buzzer);

      preparation();
      }
    }
  }
  gameTimeSelection();
}

void gameTimeSelection() {
  String gameTimeString = "";

  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Enter Game Time: ");
  lcd.setCursor(0, 1);

  while (gameTime == 0){
    char key = keypad.getKey();

    if (key) {
      if (key >= '0' && key <= '9') {
      // Append digit to input string
      gameTimeString += key;


      tone(buzzer, clickToneFreq);   // 1000 Hz tone
      delay(clickBeepTime);
      noTone(buzzer);       // stop sound

      // Show it on LCD
      lcd.setCursor(0, 1);
      lcd.print(gameTimeString);
      }   
      else if (key == '*') {
      tone(buzzer, removeToneFreq);
      delay(removeBeepTime);
      noTone(buzzer);
      // Convert to integer
      gameTime = gameTimeString.toInt();

      Serial.println("Game Time: " + String(gameTime));

      if(gamemode == 1){
      bombSettings();
      }
      else if(gamemode == 2){
      dominatorSettings();
      }

      } 
      else if (key == '#') {
      tone(buzzer, removeToneFreq);   // 1000 Hz tone
      delay(removeBeepTime);
      noTone(buzzer);
      }
    }
  }
}



void bombSettings(){
  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Enter Boom Time:");
  lcd.setCursor(0, 1);

  //boom time
  while(boomTime == 0) {
    char key = keypad.getKey();

    if (key) {
      if (key >= '0' && key <= '9') {
      // Append digit to input string
      boomTimeString += key;


      tone(buzzer, clickToneFreq);   // 1000 Hz tone
      delay(clickBeepTime);
      noTone(buzzer);       // stop sound

      // Show it on LCD
      lcd.setCursor(0, 1);
      lcd.print(boomTimeString);
      }   
      else if (key == '*') {
      tone(buzzer, enterToneFreq);
      delay(enterBeepTime);
      noTone(buzzer);
      // Convert to integer
      boomTime = boomTimeString.toInt();

      Serial.println("Boom Time:" + String(boomTime));

      break;

      } 
      else if (key == '#') {
      tone(buzzer, removeToneFreq);   // 1000 Hz tone
      delay(removeBeepTime);
      noTone(buzzer);
      }
    }
  }
  



  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Enter Bomb Mode:");
  lcd.setCursor(0, 1);

  while(bombMode == 0){

    unsigned long lastScroll = 0;
    bool showBomb = true;

    char key = keypad.getKey();
    if (key == '1') {
    Serial.println("bombMode: 1/Hold");
    bombMode = 1;
    break;
    }
    else if (key == '2'){
    Serial.println("bombMode: 2/Enter Code");
    bombMode = 2;
    break;
    }

    // Scroll text without blocking
    if (millis() - lastScroll > scrollText) { // 1.2 second interval
      lastScroll = millis();
      lcd.setCursor(0,1);
      if (showFirst) {
        lcd.print("Hold: 1       ");
      } else {
        lcd.print("Enter code: 2   ");
      }
      showFirst = !showFirst;
    }
  }

  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Hold Time:");
  lcd.setCursor(0, 1);

  while(bombMode == 1 && bombHold == 0){
    char key = keypad.getKey();

    if (key) {
      if (key >= '0' && key <= '9') {
      // Append digit to input string
      bombHoldString += key;


      tone(buzzer, clickToneFreq);   // 1000 Hz tone
      delay(clickBeepTime);
      noTone(buzzer);       // stop sound

      // Show it on LCD
      lcd.setCursor(0, 1);
      lcd.print(bombHoldString);
      }   
      else if (key == '*') {
      tone(buzzer, enterToneFreq);
      delay(enterBeepTime);
      noTone(buzzer);
      // Convert to integer
      bombHold = bombHoldString.toInt();

      Serial.println("Bomb Hold Time:" + String(bombHold));

      break;

      } 
      else if (key == '#') {
      tone(buzzer, removeToneFreq);   // 1000 Hz tone
      delay(removeBeepTime);
      noTone(buzzer);
      }
    }
  }

}

void dominatorSettings(){
  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Dominator");
  lcd.setCursor(0, 1);
}


/*
String options[3] = { "hold: 1", "Detonator: 2", "Defuse: 3" };
  int optionIndex = 0;

  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("Enter Bomb Mode:");

  //bomb mode
  while(bombMode == 0) {
    
    


    char key = keypad.getKey();
    if (key == '1'){
      
    }
    else if(key == '2'){

    }
    else if(key == '3'){
      
    }
    
    

    if (millis() - lastScroll > scrollTextSpeed) {
      lastScroll = millis();
      lcd.setCursor(0, 1);
      lcd.print(options[optionIndex]);
      lcd.print("                "); // clear rest of line

      optionIndex = (optionIndex + 1) % 3; // cycle through 0,1,2
    }
*/