#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <elapsedMillis.h>

//Setup different timers
elapsedMillis defTimer;

//Define OLED display
#define OLED_WIDTH 128
#define OLED_HEIGHT 64
#define OLED_ADDR 0x3C
Adafruit_SSD1306 display(OLED_WIDTH, OLED_HEIGHT);


//Define analog joystick pins and store variables
#define joyX A0 //Joystick Horizontal
#define joyY A1 //Joystick Vertical
#define joyP 2  //Joystick Push
int xValue, yValue, pValue; //Varibles to store current data

void setup() {

  //Setup OLED display
  display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);
  display.clearDisplay();
  display.display();

  //Setup analog joystick push btn
  pinMode(2, INPUT);


  //Display welcome msg 
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(23, 25);

  display.print("W"); display.display();
  defTimer = 0;
  while(true) {
    switch(defTimer) {
      case 300: display.print("e"); display.display(); break;
      case 600: display.print("l"); display.display(); break;
      case 900: display.print("c"); display.display(); break;
      case 1200: display.print("o"); display.display(); break;
      case 1500: display.print("m"); display.display(); break;
      case 1800: display.print("e"); display.display(); break;
      case 4000:                                                  //After 4s open main menu
        display.clearDisplay();
        display.display();
        mainMenu();
      break;
    }
  }

}


void mainMenu() {

  //Menu nav variables
  int selectedMenu = 1;
  bool buttonHold = false;


  //Defaulte 1. menu RECORD
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.fillRect(0, 0, 128, 31, WHITE);
  display.drawRect(0, 33, 128, 31, WHITE);

  display.setTextColor(BLACK);
  display.setCursor(-1, 9);
  display.write(0x10);
  display.setCursor(32, 9);
  display.print("RECORD");

  display.setTextColor(WHITE);
  display.setCursor(18, 41);
  display.print("PLAYBACK");

  display.display();


  //Menu select with joyY
  while(true) {

    //Read joy current pos
    xValue = analogRead(joyX);
    yValue = analogRead(joyY);
    pValue = digitalRead(joyP);

    //Re enamble button action when joyY released
    if(yValue < 900 && yValue > 100) { buttonHold = false; }


    if(yValue > 900 && selectedMenu == 2 && buttonHold == false) {      //1. menu RECORD from PLAYBACK
      selectedMenu = 1;
      buttonHold = true;

      display.clearDisplay();
      display.display();

      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.fillRect(0, 0, 128, 31, WHITE);
      display.drawRect(0, 33, 128, 31, WHITE);

      display.setTextColor(BLACK);
      display.setCursor(-1, 9);
      display.write(0x10);
      display.setCursor(32, 9);
      display.print("RECORD");

      display.setTextColor(WHITE);
      display.setCursor(18, 41);
      display.print("PLAYBACK");

      display.display();
    }

    if(yValue < 100 && selectedMenu == 1 && buttonHold == false) {      //2. menu PLAYBACK from RECOD
      selectedMenu = 2;
      buttonHold = true;

      display.clearDisplay();
      display.display();

      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.drawRect(0, 0, 128, 31, WHITE);
      display.fillRect(0, 33, 128, 31, WHITE);

      display.setTextColor(WHITE);
      display.setCursor(32, 8);
      display.print("RECORD");

      display.setTextColor(BLACK);
      display.setCursor(-1, 42);
      display.write(0x10);
      display.setCursor(18, 41);
      display.print("PLAYBACK");

      display.display();
    }

    if(yValue < 100 && selectedMenu == 2 && buttonHold == false) {      //3. menu SETUP from PLAYBACK
      selectedMenu = 3;
      buttonHold = true;

      display.clearDisplay();
      display.display();

      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.drawRect(0, 0, 128, 31, WHITE);
      display.fillRect(0, 33, 128, 31, WHITE);

      display.setTextColor(WHITE);
      display.setCursor(18, 8);
      display.print("PLAYBACK");

      display.setTextColor(BLACK);
      display.setCursor(-1, 42);
      display.write(0x10);
      display.setCursor(35, 41);
      display.print("SETUP");

      display.display();
    }

    if(yValue > 900 && selectedMenu == 3 && buttonHold == false) {      //2. menu PLAYPACK from SETUP
      selectedMenu = 2;
      buttonHold = true;

      display.clearDisplay();
      display.display();

      display.setTextSize(2);
      display.setTextColor(WHITE);
      display.drawRect(0, 0, 128, 31, WHITE);
      display.fillRect(0, 33, 128, 31, WHITE);

      display.setTextColor(WHITE);
      display.setCursor(32, 8);
      display.print("RECORD");

      display.setTextColor(BLACK);
      display.setCursor(-1, 42);
      display.write(0x10);
      display.setCursor(18, 41);
      display.print("PLAYBACK");

      display.display();
    }


    //Enter current selected menu when analog joy pressed
    if(pValue == 1) {
      switch(selectedMenu) {
        case 1: recordMenu(); break;
        case 2: playbackMenu(); break;
        case 3: setupMenu(); break;
      }
      break;
    }

  }
}



void recordMenu() {
  display.clearDisplay();
  display.display();

  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.print("RECORD");

  display.display();
}

void displayInputValues() {}

void recordSetup() {
  //
  //Change dmx record range
  //

  //
  //DMX pass thru or input only
  //

}

void recordDMX() {
  //
  //Ask single record or cue playback
  //

  //
  //Ask for new save or overwrite existing
  //
}



void playbackMenu() {
  display.clearDisplay();
  display.display();

  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.print("PLAYBACK");

  display.display();
}
void setupMenu() {
  display.clearDisplay();
  display.display();

  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.print("SETUP");

  display.display();
}









void loop() {}