#include <Arduino_GFX_Library.h>
#include <Adafruit_FT6206.h>

#define TFT_DC 2
#define TFT_CS 15
#define TFT_SCK 18
#define TFT_MOSI 23
#define TFT_MISO 19
#define TFT_RESET 4
#define LED 12

Adafruit_FT6206 ctp;

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

  Arduino_ESP32SPI bus = Arduino_ESP32SPI(TFT_DC, TFT_CS, TFT_SCK, TFT_MOSI, TFT_MISO);
  Arduino_ILI9341 display = Arduino_ILI9341(&bus, TFT_RESET);

  display.begin();
  display.fillScreen(LIGHTGREY);
  display.drawRect(10, 10, 70, 75, PURPLE);
  display.fillRect(10, 10, 70, 75, PURPLE);
  display.setCursor(30, 44);
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.print("LED");
  display.fillRect(110, 10, 55, 75, GREEN);
  display.fillRect(165, 10, 55, 75, RED);
  display.setCursor(132, 44);
  display.println("ON");
  display.setCursor(187, 44);
  display.println("OFF");
  display.drawRect(10, 120, 70, 75, PURPLE);
  display.fillRect(10, 120, 70, 75, PURPLE);
  display.drawRect(10, 220, 70, 75, PURPLE);
  display.fillRect(10, 220, 70, 75, PURPLE);

  if (!ctp.begin(40)) {  // pass in 'sensitivity' coefficient
    Serial.println("Couldn't start FT6206 touchscreen controller");
    while (1);
  }
  pinMode(LED, OUTPUT);
  digitalWrite(LED, LOW);
}

void loop() {
  if (!ctp.touched()) {
    delay(10);
    return;
  }

  TS_Point p = ctp.getPoint();
  p.x = map(p.x, 0, 240, 240, 0);
  p.y = map(p.y, 0, 320, 320, 0);

  if (ctp.touched()) {
    Serial.print("Touch detected at X = ");
    Serial.print(p.x);
    Serial.print(", Y = ");
    Serial.println(p.y);
    
    if (p.x >110 && p.x <  165 && p.y > 10 && p.y < 85) {
      Serial.println("Turning LED ON");
      digitalWrite(LED, HIGH); // Turn LED ON
    } else if (p.x > 165 && p.x < 230 && p.y > 10 && p.y < 85) {
      Serial.println("Turning LED OFF");
      digitalWrite(LED, LOW); // Turn LED OFF
    }
  }
}