#include "U8glib.h"

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0 | U8G_I2C_OPT_NO_ACK | U8G_I2C_OPT_FAST); // Fast I2C / TWI
//just a few constant intagers ill be using
const int xspot_icon=4;
const int frt_yspot_icon=2;
const int snd_yspot_icon=24;
const int trd_yspot_icon=46;
// 'Mechatronics', 128x64px
// 'scroll_bar', 128x24px
const unsigned char epd_bitmap_notscroll_bar [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
	0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 
	0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

// 'drink_library_icon', 16x16px
const unsigned char epd_bitmap_drink_library_icon [] PROGMEM = {
	0x80, 0x01, 0x91, 0x19, 0x91, 0x19, 0xaa, 0xa5, 0xaa, 0xa5, 0xaa, 0xa5, 0xaa, 0xa5, 0xbb, 0xbd, 
	0x80, 0x01, 0xff, 0xff, 0x80, 0x01, 0x90, 0x89, 0xa9, 0x55, 0xa9, 0x55, 0xb9, 0xdd, 0x80, 0x01
};
// 'scroll_bar', 128x24px
const unsigned char epd_bitmap_scroll_bar [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
	0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 
	0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 
	0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'sort_by_size_icon', 16x16px
const unsigned char epd_bitmap_sort_by_size_icon [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x88, 0x00, 0x88, 0x00, 0x88, 0x00, 0x88, 0x00, 
	0x88, 0x11, 0x88, 0x11, 0x88, 0x11, 0x8a, 0x51, 0x8a, 0x51, 0x8a, 0x51, 0x71, 0x8e, 0x00, 0x00
};
// 'sort_by_type_icon', 16x16px
const unsigned char epd_bitmap_sort_by_type_icon [] PROGMEM = {
	0x00, 0x00, 0x02, 0x60, 0x02, 0x50, 0x02, 0x60, 0x1c, 0x38, 0x20, 0x04, 0x20, 0x04, 0x2a, 0x54, 
	0x24, 0x24, 0x2a, 0x54, 0x20, 0x04, 0x20, 0x04, 0x20, 0x04, 0x20, 0x04, 0x10, 0x08, 0x0f, 0xf0
};

// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 544)

const unsigned char* bitmap_icon[4] = {
	epd_bitmap_drink_library_icon,
	epd_bitmap_scroll_bar,
	epd_bitmap_sort_by_size_icon,
	epd_bitmap_sort_by_type_icon
};
int button_select_clicked=0;
int item_selected=1;
int item_sel_previous=item_selected-1;
int item_sel_next=item_selected+1;
int current_screen = 0;
int progress = 0;
String mode="menu";
//screwdriver "barcode"
int selection[]={
	2,0,0,4,0,0,0
};
const int NUM_ITEMS = 4; // number of items in the list and also the number of screenshots and screenshots with QR codes (other screens)
const int MAX_ITEM_LENGTH = 15; // maximum characters for the item name
char menu_items [NUM_ITEMS] [MAX_ITEM_LENGTH] = {  // array with item names
  { "Sort By Size" }, 
  { "Drink Library" }, 
  { "Sort By Type" },  
  { "Settings" }
 };
char sort_by_size [3] [MAX_ITEM_LENGTH] = {  // array with item names
  { "Small" }, 
  { "Medium" }, 
  { "Large" }
 };
char sort_by_type [3] [MAX_ITEM_LENGTH] = {  // array with item names
  { "Vodka" }, 
  { "Tequila" }, 
  { "Non-Alc" }
 };
int BUTTON_DOWN_PIN=37;
int BUTTON_UP_PIN=38;
int BUTTON_SELECT_PIN=39;
int button_up_clicked=0;
int button_down_clicked=0;

void setup() {
  u8g.setFont(u8g_font_tpssb);
  u8g.setColorIndex(1);
	digitalWrite(23, HIGH);
	digitalWrite(24, HIGH);
	digitalWrite(25, HIGH);
	digitalWrite(26, HIGH);
	digitalWrite(27, HIGH);
	digitalWrite(28, HIGH);
	digitalWrite(29, HIGH);
	digitalWrite(22, HIGH);
	digitalWrite(6, HIGH);
	pinMode(6,OUTPUT);
	pinMode(22,OUTPUT);
	pinMode(23,OUTPUT);
	pinMode(24,OUTPUT);
	pinMode(25,OUTPUT);
	pinMode(26,OUTPUT);
	pinMode(27,OUTPUT);
	pinMode(28,OUTPUT);
	pinMode(29,OUTPUT);
	pinMode(BUTTON_DOWN_PIN,INPUT_PULLUP);
	pinMode(BUTTON_UP_PIN,INPUT_PULLUP);
	pinMode(BUTTON_SELECT_PIN,INPUT_PULLUP);


}

void loop() {

	if (mode=="idle"){
	// idle
	// display welcome screen
	// if joystick moved or pressed go to menu mode
	}
	if (mode=="menu"){
	//menu code
	 
	 

      // up and down buttons only work for the menu screen
      if ((digitalRead(BUTTON_UP_PIN) == LOW) && (button_up_clicked == 0)) { // up button clicked - jump to previous menu item
        item_selected = item_selected - 1; // select previous item
        button_up_clicked = 1; // set button to clicked to only perform the action once
        if (item_selected < 0) { // if first item was selected, jump to last item
          item_selected = NUM_ITEMS-1;
        }
      }
      else if ((digitalRead(BUTTON_DOWN_PIN) == LOW) && (button_down_clicked == 0)) { // down button clicked - jump to next menu item
        item_selected = item_selected + 1; // select next item
        button_down_clicked = 1; // set button to clicked to only perform the action once
        if (item_selected >= NUM_ITEMS) { // last item was selected, jump to first menu item
          item_selected = 0;
          }
      } 

      if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (button_up_clicked == 1)) { // unclick 
        button_up_clicked = 0;
      }
      if ((digitalRead(BUTTON_DOWN_PIN) == HIGH) && (button_down_clicked == 1)) { // unclick
        button_down_clicked = 0;
      }

  	
		if ((digitalRead(BUTTON_SELECT_PIN) == LOW) && (button_select_clicked == 0)) { // select button clicked, jump between screens
     button_select_clicked = 1; // set button to clicked to only perform the action once
     if (current_screen == 0) {
			 current_screen = 1;
			 int item_selected=1;
				int item_sel_previous=item_selected-1;
				int item_sel_next=item_selected+1;
				} // menu items screen --> screenshots screen
     else if (current_screen == 1) {current_screen = 2;} // screenshots screen --> qr codes screen
     else {current_screen = 0;} // qr codes screen --> menu items screen
  	}
  	if ((digitalRead(BUTTON_SELECT_PIN) == HIGH) && (button_select_clicked == 1)) { // unclick 
    	button_select_clicked = 0;
  	}
	 // set correct values for the previous and next items
  item_sel_previous = item_selected - 1;
  if (item_sel_previous < 0) {item_sel_previous = NUM_ITEMS - 1;} // previous item would be below first = make it the last
  item_sel_next = item_selected + 1;  
  if (item_sel_next >= NUM_ITEMS) {item_sel_next = 0;} // next item would be after last = make it the first

	 
	 u8g.firstPage(); // required for page drawing mode for u8g library
  	do {

    	if (current_screen == 0) { // MENU SCREEN

      // selected item background
      	u8g.drawBitmapP(0, 22, 128/8, 22, epd_bitmap_notscroll_bar);

      // draw previous item as icon + label
      	u8g.setFont(u8g_font_7x14);
      	u8g.drawStr(25, 15, menu_items[item_sel_previous]); 
      	//u8g.drawBitmapP( 4, 2, 16/8, 16, bitmap_icons[item_sel_previous]);          

      // draw selected item as icon + label in bold font
      	u8g.setFont(u8g_font_7x14B);    
      	u8g.drawStr(25, 15+20+2, menu_items[item_selected]);   
      	//u8g.drawBitmapP( 4, 24, 16/8, 16, bitmap_icons[item_selected]);     

      // draw next item as icon + label
      	u8g.setFont(u8g_font_7x14);     
      	u8g.drawStr(25, 15+20+20+2+2, menu_items[item_sel_next]);   
      	//u8g.drawBitmapP( 4, 46, 16/8, 16, bitmap_icons[item_sel_next]);  

      // draw scrollbar background
      	//u8g.drawBitmapP(128-8, 0, 8/8, 64, bitmap_scrollbar_background);

      // draw scrollbar handle
      	//u8g.drawBox(125, 64/NUM_ITEMS * item_selected, 3, 64/NUM_ITEMS); 

      // draw upir logo
      	//u8g.drawBitmapP(128-16-4, 64-4, 16/8, 4, upir_logo);               

    } 
    	else if (current_screen == 1) { // SCREENSHOTS SCREEN
        char *submenu_items =sort_by_size;
				// selected item background
      	u8g.drawBitmapP(0, 22, 128/8, 22, epd_bitmap_notscroll_bar);

      // draw previous item as icon + label
      	u8g.setFont(u8g_font_7x14);
      	u8g.drawStr(25, 15, submenu_items[item_sel_previous]); 
      	//u8g.drawBitmapP( 4, 2, 16/8, 16, bitmap_icons[item_sel_previous]);          

      // draw selected item as icon + label in bold font
      	u8g.setFont(u8g_font_7x14B);    
      	u8g.drawStr(25, 15+20+2, submenu_items[item_selected]);   
      	//u8g.drawBitmapP( 4, 24, 16/8, 16, bitmap_icons[item_selected]);     

      // draw next item as icon + label
      	u8g.setFont(u8g_font_7x14);     
      	u8g.drawStr(25, 15+20+20+2+2, submenu_items[item_sel_next]); // draw screenshot
    }
   	 //else if (current_screen == 2) { // QR SCREEN
        //u8g.drawBitmapP( 0, 0, 128/8, 64, bitmap_qr_codes[item_selected]); // draw qr code screenshot
    //}   
			
  } while ( u8g.nextPage() ); // required for page drawing mode with u8g library
	
	
	}

	if (mode=="make"){
		//making code here
		//look at first number in array if zero go to next if not send location code to bitch boy
		
		for (int array_indexer=0; array_indexer<7; array_indexer++){
			if (selection[array_indexer]==0){
			
			digitalWrite(22+array_indexer, HIGH);
			
			}
			if (selection[array_indexer]>0){
			//move to postion array_indexer
			//send comand here

			//conferm position here

			//turn on pump
			digitalWrite(22+array_indexer, LOW);
			delay(selection[array_indexer]*8872);
			//turn off pump
			digitalWrite(22+array_indexer, HIGH);
			//is there enough fluid in cup
			
			
			}
			
		}
		mode.replace("make", "display");
		
	}
	if (mode=="display"){
		//deliver to the done place
		digitalWrite(6, LOW);
	}
	if (mode=="done"){
		//done code here
	digitalWrite(6, LOW);
	}
}