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

// Define pin connections
#define TFT_CS 26
#define TFT_RST 25
#define TFT_DC 2
#define DHT_PIN 14
#define DHT_TYPE DHT22

// Initialize display and DHT sensor
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
DHT dht(DHT_PIN, DHT_TYPE);

bool isCrying = false;

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

  // Initialize TFT display
  tft.begin();
  tft.setRotation(1);
  tft.fillScreen(ILI9341_BLACK);

  // Initialize DHT sensor
  dht.begin();

  // Draw initial smiley emoji
  drawSmiley();
}

void loop() {
  // Read temperature
  float temperature = dht.readTemperature();

  // Check if reading failed
  if (isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Display temperature on the serial monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("°C");

  // Check if the temperature exceeds the threshold
  if (temperature > 35.0) {
    if (!isCrying) { // Avoid unnecessary redrawing
      isCrying = true;
      drawCrying();
    }
  } else {
    if (isCrying) { // Avoid unnecessary redrawing
      isCrying = false;
      drawSmiley();
    }
  }

  delay(2000); // Delay between readings
}

void drawSmiley() {
  tft.fillScreen(ILI9341_BLACK); // Clear screen
  tft.fillCircle(120, 160, 80, ILI9341_YELLOW); // Face
  tft.fillCircle(90, 140, 10, ILI9341_BLACK);  // Left eye
  tft.fillCircle(150, 140, 10, ILI9341_BLACK); // Right eye
  tft.fillRect(90, 180, 60, 10, ILI9341_BLACK); // Mouth base
  tft.fillTriangle(90, 190, 120, 200, 150, 190, ILI9341_BLACK); // Smiling curve
}

void drawCrying() {
  tft.fillScreen(ILI9341_BLACK); // Clear screen
  tft.fillCircle(120, 160, 80, ILI9341_YELLOW); // Face
  tft.fillCircle(90, 140, 10, ILI9341_BLACK);  // Left eye
  tft.fillCircle(150, 140, 10, ILI9341_BLACK); // Right eye
  tft.fillRect(87, 150, 5, 15, ILI9341_BLUE); // Left tear
  tft.fillRect(147, 150, 5, 15, ILI9341_BLUE); // Right tear
  tft.fillRect(90, 190, 60, 10, ILI9341_BLACK); // Mouth base
  tft.fillTriangle(90, 190, 120, 180, 150, 190, ILI9341_BLACK); // Frowning curve
}