// Librairies à utiliser

#include <Keypad.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
//#include "pitches.h"

const byte ROWS = 4;
const byte COLS = 4;

//Paramétrage du clavier
const int ROW_NUM = 4; //four rows
const int COLUMN_NUM = 4; //three columns

char keys[ROW_NUM][COLUMN_NUM] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte pin_rows[ROW_NUM] = {14, 27, 26, 25}; //connect to the row pinouts of the keypad
byte pin_column[COLUMN_NUM] = {33, 32, 18, 19}; //connect to the column pinouts of the keypad
uint8_t LCD_CursorPosition = 0;
Keypad keypad = Keypad( makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );

const int ledvertePin = 15;
const int ledrougePin = 13;
const String password = "1605"; // change your password here----------------------------------------------------------------------------------------password-------------------------------
String input_password;

LiquidCrystal_I2C lcd(0x27, 16, 2);


void setup() {

  // initialize LCD
  lcd.init();
  // turn on LCD backlight
  lcd.backlight();


  pinMode(ledrougePin, OUTPUT);
  pinMode(ledvertePin, OUTPUT);

  // Lancement de la connexion série avec l'ESP32
  Serial.begin(115200);

  input_password.reserve(32); // maximum input characters is 33, change if needed
}
//===================================================================================================sous-routines
void good() {   //routine si code exact

  digitalWrite(ledvertePin, HIGH);
  digitalWrite(ledrougePin, LOW);
  lcd.setCursor(0, 1); // (ligne, colonne)
  // print message
  lcd.clear();
  lcd.print("  Code Valide ");
  lcd.setCursor(1, 1);
  lcd.print("  Action OK ");
  delay (2000);

  delay(5000);
  digitalWrite(ledvertePin, LOW);
  lcd.setCursor(3, 1);
  // print message
  lcd.print("                ");


}

//================================================================================================================

void loop() { // Boucle d'attente de frappe des touches et de validation du code

  // set cursor to first column, first row
  lcd.setCursor(1, 0);
  // print message
  lcd.print("Entrez le Code");
  lcd.setCursor(0, 1);
  // print message
  lcd.print("  Validez par #");


  char key = keypad.getKey();

  if (key) {
    Serial.println(key);
    digitalWrite(ledrougePin, HIGH);
    //digitalWrite(12, HIGH);
    tone(4, 200, 700);// tonalite grave (4=d4, 200hz, 700ms)
    delay(500);
    digitalWrite(ledrougePin, LOW);

    if (key == '*') {
      input_password = ""; // clear input password
    } else if (key == '#') {
      if (password == input_password) {
        Serial.println("password is correct");
        // DO YOUR WORK HERE
        good();       // appel de la fonction good()si le code est bon
      } else {
        Serial.println("password is incorrect, try again");
        digitalWrite(ledrougePin, HIGH);
      }

      input_password = ""; // clear input password
    } else {
      input_password += key; // append new character to input password string
    }
  }

}