#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <Adafruit_FT6206.h>
#include <math.h>

// TFT Display Pins
#define TFT_CS    10
#define TFT_RST   4
#define TFT_DC    9
#define TFT_MOSI  11
#define TFT_SCLK  13
#define TFT_MISO  12

// Create TFT and Touch objects
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
Adafruit_FT6206 ts = Adafruit_FT6206();

void setup() {
    Serial.begin(115200);
    tft.begin();
    tft.setRotation(3);

    if (!ts.begin()) {
        Serial.println("Touchscreen not found!");
    } else {
        Serial.println("Touchscreen OK");
    }

    // Display animated text
    drawAnimatedText();

    // Loading Animation
    drawSmoothLoadingAnimation();
}

void loop() {}

// Function to display "Thennal Air" and "Filters" letter-by-letter
void drawAnimatedText() {
    tft.fillScreen(ILI9341_BLACK);

    String line1 = "Thennal Air";
    String line2 = "Filters";
    int x1 = 80, y1 = 80;  
    int x2 = 110, y2 = 140; 
    int delayTime = 50;   

    uint16_t colors[] = { ILI9341_ORANGE, ILI9341_WHITE, ILI9341_GREEN };

    // Print "Thennal Air"
    for (int i = 0; i < line1.length(); i++) {
        tft.setTextColor(colors[i % 3]);
        tft.setTextSize(3);
        tft.setCursor(x1, y1);
        tft.print(line1[i]);
        x1 += 18; 
        delay(delayTime);
    }

    delay(200);

    // Print "Filters"
    for (int i = 0; i < line2.length(); i++) {
        tft.setTextColor(colors[i % 3]);
        tft.setTextSize(3);
        tft.setCursor(x2, y2);
        tft.print(line2[i]);
        x2 += 18; 
        delay(delayTime);
    }

    delay(1000);
}

// Function to draw a continuously rotating ring animation
void drawSmoothLoadingAnimation() {
    tft.fillScreen(ILI9341_BLACK);
    tft.setTextColor(ILI9341_WHITE);
    tft.setTextSize(2);
    tft.setCursor(50, 100);
    tft.print("Initializing Setup...");

    int cx = 160, cy = 180, radius = 5;
    int totalDots = 12;  
    int ringRadius = 30; 

    float prevX[12], prevY[12];  

    int frame = 0;
    while (true) {  
        for (int i = 0; i < totalDots; i++) {
            float angle = radians(frame + (i * 360 / totalDots));  
            int x = cx + cos(angle) * ringRadius;
            int y = cy + sin(angle) * ringRadius;
            int brightness = 255 - (i * 20);  

            uint16_t color = tft.color565(brightness, brightness, brightness);

            if (frame > 0) {
                tft.fillCircle(prevX[i], prevY[i], radius, ILI9341_BLACK);
            }
            tft.fillCircle(x, y, radius, color);

            prevX[i] = x;
            prevY[i] = y;
        }

        frame += 20; 
        if (frame >= 360) frame = 0;  

        delay(100); 
    }
}