// Source code from https://techatronic.com/oled-display-with-arduino-ssd1306-oled

// TECHATRONIC.COM
// Library SPI.h
// https://github.com/PaulStoffregen/SPI
// Library Adafruit_GFX.h
// https://github.com/adafruit/Adafruit-GFX-Library
// Library Adafruit_SSD1306.h
// https://github.com/adafruit/Adafruit_SSD1306
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define screen_width 128 // OLED display width, in pixels  
#define screen_height 64 // OLED display height, in pixels  
#define OLED_RESET 4
Adafruit_SSD1306 display(screen_width, screen_height);

#define buttonUp 2
#define buttonDown 3
#define buttonEnter 4
#define led 8


int select = 1;
int enter ;
int vol;
int gain;
void setup ()

{
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  pinMode(buttonUp, INPUT_PULLUP);
  pinMode(buttonDown, INPUT_PULLUP);
  pinMode(buttonEnter, INPUT_PULLUP);
  pinMode(led, OUTPUT);
  
}

void loop ()
{
  contMenu();
  //Menu0();
  SetTela();
  
  digitalWrite(led, HIGH);
}

void contMenu(){
  if (!digitalRead(buttonUp)){
    select++;
    delay(100);
  }
  if (!digitalRead(buttonDown)){
    select--;
    delay(100);
  }  
}
void selectMenu(int p1, int p2){
  if(select == p1){
    display.print("> ");
  }
  else{
    display.print("");
  }
}

void SetEffect(){
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(35, 0);
  display.println("EFEITOS");
  display.setCursor(0, 10);
  selectMenu(1,select);display.println("Clean");
  selectMenu(2,select);display.println("Boost");
  selectMenu(3,select);display.println("OverDriver");
  selectMenu(4,select);display.println("Distortion");
  selectMenu(5,select);display.println("Delay");
  selectMenu(6,select);display.println("Reverb");
  display.display();
}
void Menu0(){
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(35, 0);
  display.println("Select");
  display.setCursor(0, 10);
  selectMenu(1,select);display.println("Set Effect 1");
  selectMenu(2,select);display.println("Set Effect 2");
  selectMenu(3,select);display.println("Set Effect 3");
  selectMenu(4,select);display.println("Set Effect 4");
  selectMenu(5,select);display.println("Set Effect 5");
  selectMenu(6,select);display.println("Set Effect 6");
  display.display();
}
void SetTela(){
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(5,0);
  display.print("SET EFFECT");
  display.setTextSize(6);
  display.setCursor(34, 20);
  display.print(select);
  display.display();
}

void EffectClean(){
  vol;
  gain;
}
void SetEffect(){
  switch (select){
    case 1;
      

  }
}