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

// Define ESP32 TFT connections
#define TFT_CS 5
#define TFT_DC 2
#define TFT_RST 4
#define TFT_LED 3.3

// Initialize TFT display
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

void setup() {
    tft.begin();
    tft.setRotation(3); // Landscape mode
    
    // Show the animated text
    showAnimatedText();
    
    // Show loading screen
    showLoadingScreen();
}

void loop() {
    // Nothing here, as it's just a demo
}

// Function to show "Thennal Air Filters" letter by letter in Indian colors
void showAnimatedText() {
    tft.fillScreen(ILI9341_BLACK);
    tft.setTextSize(3);
    tft.setTextColor(ILI9341_ORANGE);
    
    const char *text = "Thennal Air Filters";
    int x = 10;
    int y = 100;
    int delayTime = 200; // Delay between letters
    
    for (int i = 0; text[i] != '\0'; i++) {
        if (i < 7) tft.setTextColor(ILI9341_ORANGE); // First part (Orange)
        else if (i < 11) tft.setTextColor(ILI9341_WHITE); // Middle part (White)
        else tft.setTextColor(ILI9341_GREEN); // Last part (Green)
        
        tft.setCursor(x, y);
        tft.print(text[i]);
        x += 18; // Adjust spacing
        delay(delayTime);
    }
    delay(2000); // Hold for 2 seconds before moving to the next screen
}

// Function to show rotating ring animation with "Initializing Setup..."
void showLoadingScreen() {
    tft.fillScreen(ILI9341_BLACK);
    tft.setTextSize(2);
    tft.setTextColor(ILI9341_WHITE);
    tft.setCursor(60, 180);
    tft.print("Initializing Setup...");
    
    int centerX = 160, centerY = 120, radius = 20;
    
    for (int i = 0; i < 36; i++) { // Rotate animation
        tft.fillCircle(centerX + cos(i * 10 * PI / 180) * radius,
                       centerY + sin(i * 10 * PI / 180) * radius, 5, ILI9341_WHITE);
        delay(100);
        tft.fillCircle(centerX + cos(i * 10 * PI / 180) * radius,
                       centerY + sin(i * 10 * PI / 180) * radius, 5, ILI9341_BLACK);
    }
    delay(5000); // Hold for 5 seconds before stopping
}