#include <Arduino.h>
#include <U8g2lib.h>

#define JOY_PIN_X 35
#define JOY_PIN_Y 34
#define JOY_PIN_BUTTON 13

U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);


const char* menuItems[] = {"Sensitivity", "Filter", "Sound", "Bluetooth", "Default"};
int selectedItem = 0;
bool inMainMenu = true;
bool inSubMenu = false;
int sensitivityValue = 1;
int filterValue = 0; 
int soundValue = 8; 
int bluetoothValue = 0; 
unsigned long lastJoyMove = 0;
unsigned long lastButtonPress = 0;
const char* bluetoothMenuItems[] = {"classic", "low"};
int bluetoothSelectedItem = 0;
bool inBluetoothMenu = false;
 unsigned long lastActivityTime = millis();
 bool buttonPressed = false;
// 'item_sel_outline', 128x20px
const unsigned char bitmap_item_sel_outline [] PROGMEM = {
    	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, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
	0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe0, 
	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, 
	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, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

void setup() {
  pinMode(JOY_PIN_BUTTON, INPUT_PULLUP);
  Serial.begin(9600);
  u8g2.begin();
    
  u8g2.setFont(u8g2_font_ncenB08_tr);
  displayWelcomeScreen();
}

void loop() {
  bool currentButtonState = digitalRead(JOY_PIN_BUTTON) == LOW;

  // التحقق من حالة الزر
  if (!buttonPressed && currentButtonState && millis() - lastButtonPress > 200) {
    buttonPressed = true;
    lastButtonPress = millis();

    // الانتقال بين القوائم
    if (inBluetoothMenu) {
      inBluetoothMenu = false;
      inMainMenu = true;
      displayMainMenu();
    } else if (inSubMenu) {
      inSubMenu = false;
      inMainMenu = true;
      displayMainMenu();
    } else if (inMainMenu) {
      inMainMenu = false;
      if (selectedItem == 3) {
        inBluetoothMenu = true;
        displayBluetoothMenu();
      } else {
        inSubMenu = true;
        displaySubMenu();
      }
    }
    lastJoyMove = millis();
  } else if (!currentButtonState) {
    buttonPressed = false;
  }
  int joyY = analogRead(JOY_PIN_Y);
  int joyX = analogRead(JOY_PIN_X);
  
  // التحكم في القائمة الرئيسية
  if (inMainMenu && !inSubMenu && !inBluetoothMenu) {
    if ((joyY < 1000 or joyY > 3000) && millis() - lastJoyMove > 200) {
      lastJoyMove = millis();
      if (joyY > 3000) {
        selectedItem--;
        if (selectedItem < 0) selectedItem = sizeof(menuItems) / sizeof(menuItems[0]) - 1;
      } else if (joyY < 1000) {
        selectedItem++;
        if (selectedItem >= sizeof(menuItems) / sizeof(menuItems[0])) selectedItem = 0;
      }
      displayMainMenu();
    }
  }
  
  // التحكم في القائمة الفرعية
  if (inSubMenu && !inBluetoothMenu) {
    if (selectedItem == 0) {
      sensitivityValue += (joyX < 1000) ? -1 : (joyX > 3000) ? 1 : 0;
      sensitivityValue = constrain(sensitivityValue, 1, 16);
    } else if (selectedItem == 1) {
      filterValue += (joyX < 1000) ? -1 : (joyX > 3000) ? 1 : 0;
      filterValue = constrain(filterValue, 0, 40);
    } else if (selectedItem == 2) {
      soundValue += (joyX < 1000) ? -1 : (joyX > 3000) ? 1 : 0;
      soundValue = constrain(soundValue, 0, 15);
    }
    displaySubMenu();
  }

  // التحكم في القائمة الفرعية للبلوتوث
  if (inBluetoothMenu) {
    if ((joyY < 1000 or joyY > 3000) && millis() - lastJoyMove > 200) {
      lastJoyMove = millis();
      if (joyY > 3000) {
        bluetoothSelectedItem--;
        if (bluetoothSelectedItem < 0) bluetoothSelectedItem = 1;
      } else if (joyY < 1000) {
        bluetoothSelectedItem++;
        if (bluetoothSelectedItem > 1) bluetoothSelectedItem = 0;
      }
      displayBluetoothMenu();
    }
  }
  


   if (!inSubMenu && millis() - lastJoyMove > 5000) {
    inMainMenu = true;
    displayWelcomeScreen();
  }
}

void displayBluetoothMenu() {
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_ncenB08_tr);  
  u8g2.drawStr(0, 12, "Bluetooth");

  // عرض القائمة الفرعية للبلوتوث
  for (int i = 0; i < 2; i++) {
    if (i == bluetoothSelectedItem) {
      // رسم الـ bitmap بجانب الخيار المحدد
      u8g2.drawBitmap(0, i * 12 + 30-12 , 16, 20, bitmap_item_sel_outline);
      u8g2.drawStr(12, i * 12 + 30, bluetoothMenuItems[i]);
    } else {
      u8g2.drawStr(12, i * 12 + 30, bluetoothMenuItems[i]);
    }
  }

  u8g2.sendBuffer();
}

void displayWelcomeScreen() {
  u8g2.clearBuffer();
  u8g2.drawStr(0, 20, "Welcome!");
  u8g2.sendBuffer();
  lastJoyMove = millis();
}


void displayMainMenu() {
  u8g2.clearBuffer();
  for (int i = 0; i < sizeof(menuItems) / sizeof(menuItems[0]); i++) {
    if (i == selectedItem) {
      
      u8g2.setFont(u8g2_font_ncenB08_tr);     
    u8g2.drawBitmap(0, i*12 , 16, 20, bitmap_item_sel_outline);


     }else {
      u8g2.setFont(u8g2_font_ncenR08_tr);   
    }
   // u8g2.drawStr(0, i*12 + 12, (i == selectedItem) ? ">" : " ");
    u8g2.drawStr(12, i*12 + 12, menuItems[i]);
    
    if (i == 0) {
      u8g2.setCursor(100, i*12 + 12);
      u8g2.print(sensitivityValue);
    } else if (i == 1) {
      u8g2.setCursor(100, i*12 + 12);
      u8g2.print(filterValue);
    } else if (i == 2) {
      u8g2.setCursor(100, i*12 + 12);
      u8g2.print(soundValue);
    }
  }
  u8g2.sendBuffer();
  delay(150);
}


void displaySubMenu() {
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_ncenB08_tr);
  u8g2.drawStr(50, 12, menuItems[selectedItem]);
  u8g2.setCursor(64, 32);
  if (selectedItem == 0) {
   u8g2.clearBuffer();
    u8g2.drawStr(32, 12, "Sensitivity");
    
    u8g2.print(sensitivityValue);
  } else if (selectedItem == 1) {
    u8g2.clearBuffer();
    u8g2.drawStr(50, 12, "Filter");
    u8g2.print(filterValue);
  } else if (selectedItem == 2) {
    u8g2.clearBuffer();
    u8g2.drawStr(50, 12, "Sound");
    u8g2.print(soundValue);
  }
  u8g2.sendBuffer();
  delay(150);
}