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

// Pin definitions
#define TFT_CS 33
#define TFT_DC 21
#define TFT_RST 35
#define TFT_LED 13
#define BUTTON_PIN 26

// Create display object
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

// Variables to track display state and button press
volatile bool displayOn = true;
volatile bool buttonPressed = false;

// Button interrupt service routine
void IRAM_ATTR handleButtonPress() {
  buttonPressed = true;
}

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

  // Initialize display
  tft.begin();
  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.setCursor(0, 0);
  tft.println("Ecran 1");

  // Initialize backlight pin
  pinMode(TFT_LED, OUTPUT);
  digitalWrite(TFT_LED, HIGH); // Turn on backlight initially

  // Initialize button pin
  pinMode(BUTTON_PIN, INPUT_PULLUP);

  // Attach interrupt to button pin
  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), handleButtonPress, FALLING);
}

void loop() {
  // Check if button was pressed
  if (buttonPressed) {
    buttonPressed = false;
    displayOn = !displayOn;

    if (displayOn) {
      // Turn on the display
      digitalWrite(TFT_LED, HIGH); // Turn on backlight
      tft.begin();
      tft.fillScreen(ILI9341_BLACK);
      tft.setCursor(0, 0);
      tft.println("welcome");
    } else {
      // Turn off the display
      tft.fillScreen(ILI9341_BLACK);
      digitalWrite(TFT_LED, LOW); // Turn off backlight
  }

  // Example of something to display when on
  if (displayOn) {
    tft.setCursor(0, 20);
    tft.println("Smart farm");
    delay(5000);
  }
}
}