int menu = 0;

bool editMenu = false;
int maximaTempratura = 0;

int temp;


int botaoEsquerda;
int botaoCima;
int botaoDireita;
int botaoOk;
int botaoBaixo;

int buttonState;             // the current reading from the input pin
int lastButtonState = LOW;   // the previous reading from the input pin
long lastDebounceTime = 0;  // the last time the output pin was toggled
long debounceDelay = 200;    // the debounce time; increase if the output flickers


// include the library code:
#include <LiquidCrystal.h>

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("hello, world!");


  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(2, INPUT);
  pinMode(3, INPUT);
  pinMode(4, INPUT);
  pinMode(5, INPUT);

  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);

  Serial.println('Inicando projeto');
}

void loop() {

  botaoEsquerda  = digitalRead(2);
  botaoCima      = digitalRead(3);
  botaoDireita         = digitalRead(4);
  botaoOk     = digitalRead(5);


  if(!editMenu){

  // temp - analogREad(3)
    if(botaoEsquerda){
      delay(200);
      if(menu == 0) {
          menu = 3;
        } else {
          menu = menu - 1;
        }
    }


    if(botaoDireita){
      delay(200);
      if(menu == 3) {
        menu = 0;
      } else {
        menu = menu + 1;
      }
    }
  }



  temp = analogRead(A5);







  switch(menu){
    case 0:
      MostraMenu0();
    break;
    case 1:
      MostraMenu1();
    break;
    case 2:
      MostraMenu2();
    break;
    case 3:
      MostraMenu3();
    break;

    default:
      MostraMenuDefault();

  }

}

void MostraMenu0() {
  //lcd.setCursor(0, 1);
  //lcd.print(millis() / 1000);

}

void MostraMenu1() {
    //lcd.setCursor(0, 1);
    //lcd.print(maximaTempratura);
    Serial.println(1);
    if(botaoOk) {
        // reseta a hora
        editMenu = true;
    }

    if(botaoBaixo){
      editMenu = false;
    }

    if(editMenu) {
      if(botaoEsquerda) {
        maximaTempratura = maximaTempratura - 1;
      }

      if(botaoDireita) {
        maximaTempratura = maximaTempratura + 1;
      }
    }



    Serial.println(maximaTempratura);


}

void MostraMenu2() {
  Serial.println(2);

}
void MostraMenu3() {
  Serial.println(3);

}

void MostraMenuDefault(){
  Serial.println(4);
}