// STM32 Nucleo-C031C6 I2C Example
// Simulation: https://wokwi.com/projects/365421666018061313

#include "LiquidCrystal_I2C.h"
#include "Keypad.h"
#include "password.h"
#include "string.h"


#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4


#define ROWS  4U
#define COLS  4U

char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};
byte colPins[COLS] = { D6, D7, D8, D9 }; // Pins connected to C1, C2, C3, C4
byte rowPins[ROWS] = { D2, D3, D4, D5 }; // Pins connected to R1, R2, R3, R4


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


LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
User duck("Duck");

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, STM32!");

  
  lcd.init();
  lcd.backlight();

  lcd.setCursor(4, 0);
  lcd.print("Hello, STM32");
  lcd.setCursor(5, 2);
  lcd.print("Welcome to");
  lcd.setCursor(7, 3);
  lcd.print("Wokwi!");
}

void loop() {
  char key = keypad.getKey();
  std::string message = "";
  if (key != NO_KEY) {
    Serial.println(key);
  }
  if (key == '#')
  {
    int cursor_pos = 0;
    lcd.clear();
    lcd.setCursor(4,0);
    auto name = std::string("Hello, ") + duck.getName();
    lcd.print(name.c_str());
    Serial.println(name.c_str());
    lcd.setCursor(4,2);
    lcd.print("Enter password");
    while(key!='*')
    {
        key = keypad.getKey();
        if (key != NO_KEY && key != '#' && key != '*') {
          Serial.println(key);
          message+=key;

          if(cursor_pos < LCD_COLUMNS)
          {
            lcd.setCursor(cursor_pos++,5);
            lcd.print("*");
          }
          else
          {
            lcd.setCursor(19,5);
            lcd.print(">");
          }

        }
        duck.newPassword(std::string(message));
    }
    lcd.clear();
    Serial.println(duck.password.c_str());
  }

}