#include <U8glib.h>
#define FONT u8g_font_6x10
U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0 | U8G_I2C_OPT_NO_ACK | U8G_I2C_OPT_FAST); //fast i2c

int progress = 0; 
int frame=0;
// 'fan55', 32x32px
const unsigned char epd_bitmap_fan55 [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 
	0x00, 0x0c, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 
	0x00, 0x06, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 
	0x00, 0x03, 0x00, 0x1e, 0x00, 0x03, 0x81, 0xfe, 0x00, 0x01, 0x9f, 0xee, 0x00, 0x01, 0xfe, 0x04, 
	0x00, 0x1f, 0xe0, 0x00, 0x31, 0xff, 0xc0, 0x00, 0x7f, 0xe0, 0xc0, 0x00, 0x3e, 0x00, 0xc0, 0x00, 
	0x20, 0x00, 0xc0, 0x00, 0x00, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x60, 0x00, 
	0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x30, 0x00, 
	0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'fan45', 32x32px
const unsigned char epd_bitmap_fan45 [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x03, 0x80, 0x00, 0x00, 0x07, 0x80, 0x00, 0x20, 0x03, 0x80, 0x00, 0x70, 0x01, 0x80, 0x00, 0xf0, 
	0x00, 0xc0, 0x03, 0xf0, 0x00, 0xe0, 0x07, 0x00, 0x00, 0x70, 0x0e, 0x00, 0x00, 0x38, 0x1c, 0x00, 
	0x00, 0x1c, 0x38, 0x00, 0x00, 0x0e, 0x70, 0x00, 0x00, 0x07, 0xe0, 0x00, 0x00, 0x03, 0xc0, 0x00, 
	0x00, 0x03, 0xc0, 0x00, 0x00, 0x07, 0xe0, 0x00, 0x00, 0x0e, 0x70, 0x00, 0x00, 0x1c, 0x38, 0x00, 
	0x00, 0x38, 0x1c, 0x00, 0x00, 0x70, 0x0e, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x0f, 0xc0, 0x03, 0x00, 
	0x0f, 0x00, 0x01, 0x80, 0x0e, 0x00, 0x01, 0xc0, 0x04, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x01, 0xc0, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'fan25', 32x32px
const unsigned char epd_bitmap_fan25 [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x07, 0x00, 
	0x00, 0x00, 0x07, 0x80, 0x00, 0x00, 0x0f, 0x80, 0x00, 0x00, 0x0c, 0x00, 0x0c, 0x00, 0x18, 0x00, 
	0x1c, 0x00, 0x18, 0x00, 0x3c, 0x00, 0x30, 0x00, 0x1e, 0x00, 0x30, 0x00, 0x07, 0x80, 0x60, 0x00, 
	0x01, 0xe0, 0x60, 0x00, 0x00, 0x78, 0xc0, 0x00, 0x00, 0x1f, 0xc0, 0x00, 0x00, 0x07, 0xc0, 0x00, 
	0x00, 0x03, 0xe0, 0x00, 0x00, 0x03, 0xf8, 0x00, 0x00, 0x03, 0x1e, 0x00, 0x00, 0x06, 0x07, 0x80, 
	0x00, 0x06, 0x01, 0xe0, 0x00, 0x0c, 0x00, 0x78, 0x00, 0x0c, 0x00, 0x3c, 0x00, 0x18, 0x00, 0x38, 
	0x00, 0x18, 0x00, 0x30, 0x00, 0x30, 0x00, 0x00, 0x01, 0xf0, 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 
	0x00, 0xe0, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'fan15', 32x32px
const unsigned char epd_bitmap_fan15 [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x3c, 0x00, 
	0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x60, 0x00, 
	0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0xe0, 0x00, 0x10, 0x00, 0xc0, 0x00, 0x30, 0x00, 0xc0, 0x00, 
	0x78, 0x00, 0xc0, 0x00, 0x7f, 0xc0, 0xc0, 0x00, 0x07, 0xfd, 0x80, 0x00, 0x00, 0x7f, 0xc0, 0x00, 
	0x00, 0x03, 0xfe, 0x00, 0x00, 0x01, 0xbf, 0xe0, 0x00, 0x03, 0x03, 0xfe, 0x00, 0x03, 0x00, 0x1e, 
	0x00, 0x03, 0x00, 0x0c, 0x00, 0x03, 0x00, 0x08, 0x00, 0x07, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 
	0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 
	0x00, 0x3c, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'fan0 (1)', 32x32px
const unsigned char epd_bitmap_fan0 [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xc0, 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x01, 0xc0, 0x00, 
	0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 
	0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 
	0x00, 0x01, 0x80, 0x00, 0x20, 0x01, 0x80, 0x00, 0x70, 0x01, 0x80, 0x00, 0x7f, 0xff, 0xff, 0xfe, 
	0x7f, 0xff, 0xff, 0xfe, 0x00, 0x01, 0x80, 0x0e, 0x00, 0x01, 0x80, 0x04, 0x00, 0x01, 0x80, 0x00, 
	0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 
	0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 
	0x00, 0x03, 0x80, 0x00, 0x00, 0x07, 0x80, 0x00, 0x00, 0x03, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00
};

// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 720)
const int epd_bitmap_allArray_LEN = 5;
const unsigned char* epd_bitmap_allArray[5] = {
	epd_bitmap_fan0,
	epd_bitmap_fan15,
	epd_bitmap_fan25,
	epd_bitmap_fan45,
	epd_bitmap_fan55
};







bool firstIteration = true;

// Your bitmap data here...

void setup() {
  u8g.setColorIndex(1);
  u8g.setFont(FONT); 
}

void loop() {
  if (firstIteration) {
    // Draw the progress bar during the first iteration
    loading();
  } else {
    // Display the welcome screen after the progress bar completes
    displayWelcomeScreen();
    //delay(1000); // You can adjust the delay as needed
    firstIteration = false; // Set the flag to false for the next iteration
  }

  // Your other code here...
}

void loading() {
  u8g.firstPage();
  do {
    u8g.setColorIndex(1);
    u8g.drawStr(5,5,"Loading");
    u8g.drawBox(0, 55, progress, 10);
  } while (u8g.nextPage());

  // Update the progress
  if (progress < 128) {
    progress++;
  } else {
    progress = 0;
    firstIteration = false; // Set the flag to false to indicate progress completion
  }
}

void displayWelcomeScreen() {
  battery();
  
}

void battery(){
  u8g.firstPage();
  do {
    // Display welcome message or any other content 
    //u8g.setColorIndex(1);
     
    u8g.setColorIndex(1); // Black color
    u8g.drawFrame(26,2,58,30); // Battery shape
    u8g.setColorIndex(1); //white color
    u8g.drawFrame(84,11,4,10);//Battery Head
    u8g.drawBox(28,4,map(progress,0,100,0,54),26);
    u8g.setFont(u8g_font_profont22);
    u8g.drawStr(0, 64-22, "H");
    u8g.drawStr(0, 64-2, "L");
    u8g.setFont(u8g_font_fub25); 
    u8g.drawStr(16,64-2,"0000");
    u8g.setFont(u8g_font_fub11); 
    u8g.drawStr(124-16,64-6,"g");
    u8g.drawStr(124-16,64-15,"Oz");

    u8g.setColorIndex(1);
    u8g.drawFrame(92,0,36,36);

    //display the fan
    u8g.drawBitmapP(94,2,32/8,32,epd_bitmap_allArray[frame]);

  } while (u8g.nextPage());
  if(progress<100){
    progress++;
  }else{
    progress = 0;
  }

  frame= frame +1;
  if(frame>4){frame=0;}
}