#define MAX_OPTIONS 10      //Maximum number of options for each menu
#define MAX_MENUS 10
#define MAX_GRAPH 10
#define __DEBUG__
#include <Arduino.h>

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Fonts/FreeSans12pt7b.h>


#define DISP_WIDTH 128 // OLED display width
#define DISP_HEIGHT 64 // OLED display height

Adafruit_SSD1306 display(DISP_WIDTH, DISP_HEIGHT, &Wire, -1);


void setDisp(bool fullsetting){
  if(fullsetting){
    //Adafruit_SSD1306 display(DISP_WIDTH, DISP_HEIGHT, &Wire, -1);
    Serial.begin(115200);
    if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
#ifdef __DEBUG__
      Serial.println("No se encuentra la pantalla OLED");
#endif
      while (true);
    }
  }
  display.clearDisplay();

  // Tamaño del texto
  display.setTextSize(2);
  // Color del texto
  display.setTextColor(SSD1306_WHITE);
  // Posición del texto
  display.setCursor(0, 16);
  // Escribir texto
  display.println("Hola");
  display.display();

  display.setCursor(0, 32);

  display.println("mundo!!");

  display.display();
}

class Option{
  private:

  int sizex;
  int sizey;
  String content;
  int pos;
  bool fill = false;
  bool disp = false;
  void (*f)(void);

  public:

  //Option(){}
  
  void configure(String content, int sizex, int sizey, int pos){
    this->sizex = sizex;
    this->sizey = sizey;
    this->content = content;
    this->pos = pos;
    this->disp = true;
  }

  void drawopt(int page, int pos){
    if(this->disp){
      if(this->pos == pos){
        display.fillRect(0, (this->sizey)*(this->pos) - (page*DISP_WIDTH), this->sizex, this->sizey, WHITE);
        display.setTextColor(SSD1306_BLACK);
        display.setCursor((this->sizex) + 3, (this->sizey) - 3);
        display.println(this->content);
        display.setTextColor(SSD1306_WHITE);
      }
      else{
        display.drawRect(0, (this->sizey)*(this->pos), this->sizex, this->sizey, WHITE);
        display.setCursor((this->sizex) + 3, (this->sizey) - 3 - (DISP_WIDTH*128));
        display.println(this->content);
      }
    }
  }

  void task(void (*f)(void)){
    this->f = f;
  }
};

class Menu{
  private:

  int id;
  int sizex;
  int sizey;
  int options = 0;            //This indicates the number of options created
  int pos = 0;                //This indicates the position of the cursor
  int page = 0;               //If the menu is too long, this indicates the page that is being displayed
  Option opt[MAX_OPTIONS];
  
  public:

  void configure(int id, int sizex, int sizey){
    this->id = id;
    this->sizex = sizex;
    this->sizey = sizey;
  }

  void createOption(String content){
    this->opt[this->options].configure(content, this->sizex, this->sizey, this->options++);
  }

  void function(int optionindex, void (*f)(void)){   //Defines functions for each option
    this->opt[optionindex].task(f);
  }

  void drawMenu(){
    int dir;
    this->page = pos/3;
    for(int i = 0; i < options; i++){
      this->opt[i].drawopt(this->page, this->pos);
    }
  }

  int getid(){
    int id = this->id;
    return id;
  }

  int getoptions(){
    int options = this->options;
    return options;
  }
  
  void increasePos(){
    this->pos++;
  }

  void decreasePos(){
    this->pos--;
  }
  
};

class Screen{
  
  private:
  
  Menu menu[MAX_MENUS];
  int ids[MAX_MENUS];
  int counter = 0;
  int actualScreen;

  public:

  void createMenu(int id, int sizex, int sizey){
    this->menu[counter].configure(id, sizex, sizey);
    counter++;
  }

  void createOption(int idMenu, String content){
    int mem = 0;
    for(int i = 0; i < counter; i++){
      if(this->ids[i] == idMenu)
        mem = i;
        break;
    }
    this->menu[mem].createOption(content);
  }

  void control(){
    
  }
};

void setup(){
}

void loop(){
}