/*
  ESP32 HTTPClient Jokes API Example

  https://wokwi.com/projects/342032431249883731

  Copyright (C) 2022, Uri Shaked
*/


#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

#define TFT_DC 2
#define TFT_CS 15
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);



#include <Fonts/FreeSans9pt7b.h>
#include <Fonts/FreeSans12pt7b.h>
#include <Fonts/FreeSerif12pt7b.h>
//
#include "Fonts/FreeSansBold9pt7b.h"//

// #include <FreeDefaultFonts.h>
#define BLACK       0x0000      /*   0,   0,   0 */
#define NAVY        0x000F      /*   0,   0, 128 */
#define DARKGREEN   0x03E0      /*   0, 128,   0 */
#define DARKCYAN    0x03EF      /*   0, 128, 128 */
#define MAROON      0x7800      /* 128,   0,   0 */
#define PURPLE      0x780F      /* 128,   0, 128 */
#define OLIVE       0x7BE0      /* 128, 128,   0 */
#define LIGHTGREY   0xC618      /* 192, 192, 192 */
#define DARKGREY    0x7BEF      /* 128, 128, 128 */
#define BLUE        0x001F      /*   0,   0, 255 */
#define GREEN       0x07E0      /*   0, 255,   0 */
#define CYAN        0x07FF      /*   0, 255, 255 */
#define RED         0xF800      /* 255,   0,   0 */
#define MAGENTA     0xF81F      /* 255,   0, 255 */
#define YELLOW      0xFFE0      /* 255, 255,   0 */
#define WHITE       0xFFFF      /* 255, 255, 255 */
#define ORANGE      0xFDA0      /* 255, 180,   0 */
#define GREENYELLOW 0xB7E0      /* 180, 255,   0 */
#define PINK        0xFC9F
// أزرار التنقل
const int buttonUp = 5;
const int buttonDown = 17;
const int buttonSelect = 16;
const int buttonBack = 0;

int currentScreen = 0;
int currentOption = 0;
String mainMenu[] = {"Option 1", "Option 2", "Dropdown Menu", "Exit"};
String dropdownMenu[] = {"Item 1", "Item 2", "Item 3"};
bool inDropdown = false;

void setup() {
  // إعداد الشاشة
  tft.begin();
  tft.setRotation(1);
  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);
  tft.setTextSize(2);

  // إعداد الأزرار
  pinMode(buttonUp, INPUT_PULLUP);
  pinMode(buttonDown, INPUT_PULLUP);
  pinMode(buttonSelect, INPUT_PULLUP);
  pinMode(buttonBack, INPUT_PULLUP);

  displayMainMenu();
}

void loop() {
  if (digitalRead(buttonUp) == LOW) {
    moveUp();
    delay(200);
  }
  if (digitalRead(buttonDown) == LOW) {
    moveDown();
    delay(200);
  }
  if (digitalRead(buttonSelect) == LOW) {
    selectOption();
    delay(200);
  }
  if (digitalRead(buttonBack) == LOW && inDropdown) {
    backToMainMenu();
    delay(200);
  }
}

void displayMainMenu() {
  tft.fillScreen(BLACK);
  for (int i = 0; i < 4; i++) {
    if (i == currentOption) {
      tft.setTextColor(RED, BLACK);
    } else {
      tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);
    }
    tft.setCursor(10, 30 + (i * 30));
    tft.print(mainMenu[i]);
  }
}

void displayDropdownMenu() {
  tft.fillScreen(ILI9341_BLACK);
  for (int i = 0; i < 3; i++) {
    if (i == currentOption) {
      tft.setTextColor(ILI9341_RED, ILI9341_BLACK);
    } else {
      tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);
    }
    tft.setCursor(10, 30 + (i * 30));
    tft.print(dropdownMenu[i]);
  }
}

void moveUp() {
  currentOption = (currentOption == 0) ? (inDropdown ? 2 : 3) : currentOption - 1;
  if (inDropdown) {
    displayDropdownMenu();
  } else {
    displayMainMenu();
  }
}

void moveDown() {
  currentOption = (currentOption == (inDropdown ? 2 : 3)) ? 0 : currentOption + 1;
  if (inDropdown) {
    displayDropdownMenu();
  } else {
    displayMainMenu();
  }
}

void selectOption() {
  if (!inDropdown) {
    if (currentOption == 2) { // Dropdown Menu
      inDropdown = true;
      currentOption = 0;
      displayDropdownMenu();
    } else if (currentOption == 3) { // Exit
      tft.fillScreen(BLACK);
      tft.setCursor(10, 30);
      tft.print("Goodbye!");
      delay(2000);
      ESP.restart();
    } else {
      tft.fillScreen(BLACK);
      tft.setCursor(10, 30);
      tft.print("Selected: " + mainMenu[currentOption]);
      delay(2000);
      displayMainMenu();
    }
  } else {
    tft.fillScreen(BLACK);
    tft.setCursor(10, 30);
    tft.print("Selected: " + dropdownMenu[currentOption]);
    delay(2000);
    displayDropdownMenu();
  }
}

void backToMainMenu() {
  inDropdown = false;
  currentOption = 0;
  displayMainMenu();
}