/*
  Estudo - Menu Vertical

*/
// Inclusão das Bibliotecas
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// Definição das Bibliotecas
LiquidCrystal_I2C lcd(0x27, 16, 2);

byte seta[8] = {	// Criando simbolo 'seta'
  B00000,
  B11000,
  B11110,
  B11111,
  B11110,
  B11000,
  B00000,
  B00000
};

// Mapeamento de Hardware
#define btu 26
#define btd 15
#define bte 4
#define btb 0

bool btu_f, btd_f, bte_f, btb_f;

bool linha_f;

int menu, submenu;
//const int menuMax = 5;

char* afkMenu[] = {

};

char* mainMenu[] = {
  "Meu cultivo",    // > informações sobre o cultivo
  "Config. Disp.",  // > configurações
  "Desligar Tela",  // > desligar tela do menu
  "Info"           // > ajuda
};

char* mn000[] = {
  "Iniciar",  // Criar novo cultivo | Caso não haja cultivo, exibir esse
  "Sobre",    // Ver cultivo atual  | Caso haja cultivo, exibir esse
  "Pausar",   // Pausar horário de cultivo para manutenção
  "Cancelar"  // Cancelar periodo de cultivo
};

char* mn100[] = {
  "Data e Hora",
  "Bluetooth",
  "LCD"
};

char* mn200[] = {

};

char* mn300[] = {
  "Ajuda",
  "Creditos",
  "Versao"
};


void setup() {
  Serial.begin(115200);

  pinMode(btu, INPUT_PULLUP);
  pinMode(btd, INPUT_PULLUP);
  pinMode(bte, INPUT_PULLUP);
  pinMode(btb, INPUT_PULLUP);


  lcd.init();
  lcd.backlight();
  lcd.createChar(0, seta);	// Criando caracter com simbolo 'seta'
}

void loop() {
  controle('m');
}

int controle(char a)
{
  /*
    a = f : executar função/ação
    a = n : contagem númerica
    a = m : navegar no menu
  */

  if (!digitalRead(bte)) bte_f = 0x01;
  if (!digitalRead(btb)) btb_f = 0x01;
  if (!digitalRead(btu)) btu_f = 0x01;
  if (!digitalRead(btd)) btd_f = 0x01;


  // Botão Enter Pressionado
  if (digitalRead(bte) && bte_f) {
    bte_f = 0x00;

    switch (a) {

      case 'f':
        // Realizar Ação
        return 1;
        break;

      case 'm':
        // Entrar menu
        break;
    }
  }

  // Botão Back Pressionado
  if (digitalRead(btb) && btb_f) {
    btb_f = 0x00;

    switch (a) {

      case 'f':
        // Cancelar Ação
        return 2;
        break;

      case 'm':
        // Voltar menu
        break;
    }
  }

  // Botão Up Pressionado
  if (digitalRead(btu) && btu_f) {
    btu_f = 0x00;

    switch (a) {
      
      case 'n':
        // Permitir acréscimo
        return 1;
        break;

      case 'm':
        btnUp_flag = 0x00;
        eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
        if (menu > 0) {			// Se menu for maior que zero
          menu--;				// Diminuir menu
          linha_flag = 0x00;	// Reseta flag da pos de linha
          attLcd();				// Atualiza LCD
        }

        break;
    }
  }

  // Botão Down Pressionado
  if (digitalRead(btd) && btd_f) {
    btd_f = 0x00;

    switch (a) {

      case 'n':
        // Permitir decréscimo
        return 1;
        break;

      case 'm':
        // Descer menu

        if (menu > 0) {			// Se menu for maior que zero
          menu--;				// Diminuir menu
          linha_f = 0x00;	// Reseta flag da pos de linha
          attLcd();				// Atualiza LCD
        }
        break;
    }
  }
}


void attLcd()	// Atualizar LCD
{
  switch (submenu)	// Comutar submenu
  {
    case 0:	// Caso 0
      lcd.clear();
      lcd.setCursor(0, 0);

      if (!linha_f)	// Se estiver na primeira linha
      {
        lcd.write(byte(0)); lcd.print(" ");		// Imprime "> " na 1° linha
        lcd.print(mainMenu[menu]);	// Imprime tela com valor do menu atual
        lcd.setCursor(0, 1);			// Troca a linha
        lcd.print("  ");
        lcd.print(mainMenu[menu + 1]);
      }
      else	// Senão, quando estiver na segunda linha
      {
        lcd.print("  ");
        lcd.print(mainMenu[menu - 1]);
        lcd.setCursor(0, 1);
        lcd.write(byte(0)); lcd.print(" ");
        lcd.print(mainMenu[menu]);
      }
      break;



      switch (menu)
      {

      }
      break;

      // fim da nova parte do código
  }
  Serial.print("Menu: "); Serial.println(menu + 1);
}