#include <WiFi.h>
#include <HTTPClient.h>
#include <DHT.h>

// إعداد الشبكة
const char* ssid = "Wokwi-GUEST"; 
const char* password = "";

// رابط سيرفر البايثون (تعدله إذا تغير IP جهازك)
const char* serverName = "http://192.168.8.234:5000/data";

// إعداد الحساسات
#define DHTPIN 25
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

#define TRIG_PIN 15
#define ECHO_PIN 2

#define PIR_PIN 19
#define PIR_LED 18

#define LED_GREEN 14
#define LED_YELLOW 12
#define LED_RED 13

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

  WiFi.begin(ssid, password);
  Serial.println("Connecting to WiFi...");

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("\nWiFi Connected!");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());

  dht.begin();

  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  
  pinMode(PIR_PIN, INPUT);
  pinMode(PIR_LED, OUTPUT);

  pinMode(LED_GREEN, OUTPUT);
  pinMode(LED_YELLOW, OUTPUT);
  pinMode(LED_RED, OUTPUT);
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    sendSensorData();
  } else {
    Serial.println("WiFi Disconnected ❌");
  }
  delay(5000); // إرسال كل 5 ثواني
}

void sendSensorData() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  bool motionDetected = digitalRead(PIR_PIN);

  // قراءة المسافة من الحساس
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  long duration = pulseIn(ECHO_PIN, HIGH);
  float distance = duration * 0.034 / 2;

  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("❌ Failed to read from DHT sensor!");
    return;
  }

  // طباعة القيم
  Serial.println("========================");
  Serial.printf("Temperature: %.1f°C\n", temperature);
  Serial.printf("Humidity   : %.1f%%\n", humidity);
  Serial.printf("Motion     : %d\n", motionDetected);
  Serial.printf("Distance   : %.1f cm\n", distance);
  Serial.println("========================");

  // تشكيل بيانات JSON
  String jsonData = "{";
  jsonData += "\"temperature\":" + String(temperature, 1) + ",";
  jsonData += "\"humidity\":" + String(humidity, 1) + ",";
  jsonData += "\"motion\":" + String(motionDetected) + ",";
  jsonData += "\"distance\":" + String(distance, 1);
  jsonData += "}";

  Serial.println("Sending JSON data to server:");
  Serial.println(jsonData);

  // إرسال البيانات إلى السيرفر
  HTTPClient http;
  http.begin(serverName);
  http.addHeader("Content-Type", "application/json");

  int httpResponseCode = http.POST(jsonData);

  if (httpResponseCode > 0) {
    String response = http.getString();
    Serial.println("✅ Server Response: " + response);
  } else {
    Serial.print("❌ Error sending data. HTTP code: ");
    Serial.println(httpResponseCode);
  }
  http.end();
}