String VERSION = "0.0.0-alpha.0";
String wifi_ssid = "";
String wifi_password = "";

void printBanner() {
  Serial.println(" ____                      _        __        ___               _     ");
  Serial.println("|  _ \\ ___ _ __ ___   ___ | |_ ___  \\ \\      / / |__   ___  ___| |___ ");
  Serial.println("| |_) / _ \\ '_ ` _ \\ / _ \\| __/ _ \\  \\ \\ /\\ / /| '_ \\ / _ \\/ _ \\ / __|");
  Serial.println("|  _ <  __/ | | | | | (_) | ||  __/   \\ V  V / | | | |  __/  __/ \\__ \\");
  Serial.println("|_| \\_\\___|_| |_| |_|\\___/ \\__\\___|    \\_/\\_/  |_| |_|\\___|\\___|_|___/");
  Serial.println("v" + VERSION);
  Serial.println();
  Serial.println("Digita `aiuto` per una lista di comandi.");
  Serial.println();
}

void printHelp() {
  Serial.println("print|set ssid");
  Serial.println("    Visualizza o imposta l'SSID del wifi.");
  Serial.println();

  Serial.println("print|set password");
  Serial.println("    Visualizza o imposta la password del wifi.");
  Serial.println();

  Serial.println("print config");
  Serial.println("    Visualizza l'attuale configurazione wifi.");
  Serial.println();
}

void printConfig() {
  Serial.println("Configurazione");
  Serial.println("  SSID:     <" + wifi_ssid + ">");
  Serial.println("  Password: <" + wifi_password + ">");
  Serial.println();
}

String readString() {
  String cmd = Serial.readString();
  cmd.trim();

  return cmd;
}

void parseCommand() {
  if (Serial.available() <= 0) return;

  String cmd = readString();

  if (cmd.equals("aiuto")) {
    printHelp();
  } else if (cmd.equals("set ssid")) {
    Serial.println("Inserisci SSID");
    Serial.readString();
    wifi_ssid = readString();
    Serial.println("OK.");
  } else if (cmd.equals("set password")) {
  } else if (cmd.equals("print ssid")) {
  } else if (cmd.equals("print password")) {
  } else if (cmd.equals("print config")) {
    printConfig();
  }
}

void setup()
{
  delay(3000);
  Serial.begin(9600);
  printBanner();
}


void loop()
{
  parseCommand();
}