#include <TFT_eSPI.h>
#include <Wire.h>
#include <Adafruit_FT6206.h>

#define I2C_SDA 5
#define I2C_SCL 6

TFT_eSPI tft = TFT_eSPI();
TFT_eSprite btn = TFT_eSprite(&tft);
Adafruit_FT6206 touch;

const int BTN_X = 60;
const int BTN_Y = 120;
const int BTN_W = 120;
const int BTN_H = 60;

bool pressed = false;

void drawButton(bool down) {
  btn.fillSprite(down ? TFT_DARKGREY : TFT_BLUE);
  btn.drawRect(0, 0, BTN_W, BTN_H, TFT_WHITE);
  btn.setTextColor(TFT_WHITE, down ? TFT_DARKGREY : TFT_BLUE);
  btn.setTextDatum(MC_DATUM);
  btn.drawString("PRESS", BTN_W / 2, BTN_H / 2);
  btn.pushSprite(BTN_X, BTN_Y);
}

void setup() {
  Serial.begin(115200);

  // Display
  tft.init();
  tft.setRotation(1);
  tft.fillScreen(TFT_BLACK);

  // Sprite
  btn.createSprite(BTN_W, BTN_H);
  drawButton(false);

  // Touch
  Wire.begin(I2C_SDA, I2C_SCL);
  if (!touch.begin(40)) {
    Serial.println("Touch not found");
    while (1);
  }
}

void loop() {
  if (touch.touched()) {
    TS_Point p = touch.getPoint();

    // Map touch to screen coordinates (rotation = 1)
    int x = map(p.y, 0, 240, 0, tft.width());
    int y = map(p.x, 0, 320, 0, tft.height());

    bool hit =
      (x >= BTN_X && x <= BTN_X + BTN_W &&
       y >= BTN_Y && y <= BTN_Y + BTN_H);

    if (hit && !pressed) {
      pressed = true;
      drawButton(true);
      Serial.println("Button pressed");
    }
  } else if (pressed) {
    pressed = false;
    drawButton(false);
  }

  delay(10);
}