#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_MPU6050.h>
#include <DHT.h>

#define DHTPIN 2      // Digital pin connected to the DHT sensor
#define DHTTYPE DHT22 // DHT 22 (AM2302)

DHT dht(DHTPIN, DHTTYPE);
Adafruit_MPU6050 mpu;

void setup() {
  Serial.begin(9600);
  while (!Serial)
    delay(10); // will pause until serial console opens

  Serial.println("DHTxx test!");

  dht.begin();

  // Try to initialize!
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }

  mpu.setAccelerometerRange(MPU6050_RANGE_2_G);
  mpu.setGyroRange(MPU6050_RANGE_250_DEG);
  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);

  Serial.println("");
  delay(100);
}

void loop() {
  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" *C ");

  /* Get new sensor events with the readings */
  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  /* Print out the values */
  Serial.print("Acceleration X: ");
  Serial.print(a.acceleration.x);
  Serial.print(", Y: ");
  Serial.print(a.acceleration.y);
  Serial.print(", Z: ");
  Serial.print(a.acceleration.z);
  Serial.println(" m/s^2");

  Serial.print("Gyro X: ");
  Serial.print(g.gyro.x);
  Serial.print(", Y: ");
  Serial.print(g.gyro.y);
  Serial.print(", Z: ");
  Serial.print(g.gyro.z);
  Serial.println(" rad/s");

  // Health issue detection logic
  bool healthIssue = false;
  
  // Check temperature range
  if (t < 37.5 || t > 39.5) {
    healthIssue = true;
    Serial.println("Warning: Abnormal temperature detected!");
  }

  // Check for low activity (near zero acceleration in all axes)
  if (abs(a.acceleration.x) < 0.1 && abs(a.acceleration.y) < 0.1 && abs(a.acceleration.z) < 0.1) {
    healthIssue = true;
    Serial.println("Warning: Low activity detected!");
  }

  if (!healthIssue) {
    Serial.println("Cattle is healthy.");
  } else {
    Serial.println("Cattle may be suffering from health issues.");
  }

  Serial.println("");
  delay(2000);
}