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

// Include manually added font file
#include "FreeSerifBold12pt7b.h"
#include "Picopixel.h"

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 32
#define OLED_RESET -1         // No reset pin used
#define OLED_I2C_ADDRESS 0x3C // I2C address of the OLED display

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
static const unsigned char PROGMEM image_Voltage_bits[] = {0x00,0x00,0x00,0x00,0x00,0x40,0x00,0xc0,0x01,0x80,0x03,0x80,0x07,0x00,0x0f,0xe0,0x01,0xc0,0x03,0x80,0x03,0x00,0x06,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

const byte modeSwitch = 10;

void setup() {
  Serial.begin(9600);

  // Initialize the display with the correct I2C address
  if (!display.begin(SSD1306_SWITCHCAPVCC, OLED_I2C_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;); // Halt if initialization fails
  }

  pinMode(modeSwitch, INPUT_PULLUP);

  // Clear and display initial content
  display.clearDisplay();
  display.display();

  // Show logo
  showLogo();
  delay(1800);

  // Clear display after logo
  display.clearDisplay();
  delay(800);
  // Show Track
  showTrack();



}

void loop() {
  // Nothing to do here for this test
  MainModeFunc();
  enableTrackSeq();
}


// Switching to track seq mode : START
static const unsigned char PROGMEM trackSeqBitmap[] = {0x66,0x66,0x66,0x64,0x00,0x00,0x00,0x00,0x01,0x99,0x99,0x90,0xee,0xee,0xee,0xee,0x00,0x00,0x00,0x00,0x03,0xbb,0xbb,0xb8,0x4c,0xcc,0xcc,0xcc,0x00,0x00,0x00,0x00,0x01,0x33,0x33,0x30};

void enableTrackSeq(){
  if(inTrackMode == true && digitalRead(SW8) == LOW){
    enableTrackSeqBtnRead();
  }
}

void enableTrackSeqBtnRead(){
  if(modeSwitch clicked function){
    TrackSeqMODE();
  }
}

void TrackSeqMODE()
{
  onTrackSeq = true;
  onSum1 = false;
  onSum2 = false;
  onSum3 = false;
  onSum4 = false;
  showTrackSeq();
}

void showTrackSeq(){
  display.setTextWrap(false);
  display.setTextColor(1);
  display.setFont(&FreeSansBoldOblique12pt7b);
  display.setCursor(5, 26);
  display.print("Track Seq");
  display.drawBitmap(25, 9, trackSeqBitmap, 93, 3, SSD1306_WHITE);
  display.display();
  }

// Switching to track seq mode : END

void MainModeFunc() {
  // if button not pressed or switch in position 1
  if(digitalRead(modeSwitch) == HIGH)
  {
    trackMODE();
  }
  // if button pressed or switch in position 2
  else
  {
    playlistMODE();
  }
}

void trackMODE()
{
  showTrack();
}

void playlistMODE()
{
  showPlaylist();
}

void vyuvu()
{
  showTrack();
}



void showLogo() {
  display.setTextWrap(false);
  display.setTextColor(1);
  display.setFont(&FreeSerifBold12pt7b);
  display.setCursor(29, 17);
  display.print("EZ.FL");
  display.fillRect(40, 21, 48, 9, 1);
  display.setTextColor(0);
  display.setFont(&Picopixel);
  display.setCursor(42, 27);
  display.print("High Engineer");
  display.drawBitmap(57, 0, image_Voltage_bits, 16, 16, SSD1306_WHITE);
  display.display();
}

void showTrack() {
  display.setTextWrap(false);
  display.setTextColor(1);
  display.setFont(&FreeSerifBold12pt7b);
  display.setCursor(22, 23);
  display.print("TRACK");
  display.display();
}
        

void showPlaylist() {
  display.setTextWrap(false);
  display.setFont(&FreeSerifBold12pt7b);
  display.setCursor(4, 23);
  display.print("PLAYLIST");
  display.display();
}

void showPianoRoll() {
  display.setTextWrap(false);
  display.setTextColor(1);
  display.setFont(&FreeSerifBold12pt7b);
  display.setCursor(22, 23);
  display.print("TRACK");
  display.display();
}