#include <WiFi.h>
#include <WebServer.h>
#include <DHT.h>
#include <ESP32Servo.h>

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

WebServer server(80);

// تعريف الحساسات والأجهزة
#define DHTPIN 15
#define DHTTYPE DHT22

#define LED_RED 32
#define LED_GREEN 33
#define LED_BLUE 14

#define RELAY1 23
#define RELAY2 22
#define RELAY3 21
#define RELAY4 19

#define BUZZER 12

#define PIR_SENSOR 4
#define LDR_SENSOR 36
#define GAS_SENSOR 5
#define SOUND_SENSOR 39
#define RAIN_SENSOR 34
#define ULTRA_TRIG 18
#define ULTRA_ECHO 19

Servo doorServo;
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, pass);

  Serial.println();
  Serial.print("Connecting to WiFi");

  int retry = 0;
  while (WiFi.status() != WL_CONNECTED && retry < 20) {
    delay(500);
    Serial.print(".");
    retry++;
  }

  if (WiFi.status() == WL_CONNECTED) {
    Serial.println("\nWiFi connected ✅");
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());
  } else {
    Serial.println("\nWiFi connection FAILED ❌");
  }

  dht.begin();

  doorServo.setPeriodHertz(50);
  doorServo.attach(27);

  pinMode(LED_RED, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);
  pinMode(LED_BLUE, OUTPUT);

  pinMode(RELAY1, OUTPUT);
  pinMode(RELAY2, OUTPUT);
  pinMode(RELAY3, OUTPUT);
  pinMode(RELAY4, OUTPUT);

  pinMode(BUZZER, OUTPUT);

  pinMode(PIR_SENSOR, INPUT);
  pinMode(LDR_SENSOR, INPUT);
  pinMode(GAS_SENSOR, INPUT);
  pinMode(SOUND_SENSOR, INPUT);
  pinMode(RAIN_SENSOR, INPUT);
  pinMode(ULTRA_TRIG, OUTPUT);
  pinMode(ULTRA_ECHO, INPUT);

  server.on("/", handleRoot);
  server.on("/control", handleControl);
  server.on("/sensors", handleSensors);

  server.begin();
  Serial.println("HTTP server started ✅");
}

void loop() {
  server.handleClient();
}

// عرض رسالة افتراضية على المتصفح
void handleRoot() {
  server.send(200, "text/plain", "Smart Home Controller is Running!");
}

// التحكم بالأجهزة عبر الموقع
void handleControl() {
  String device = server.arg("device");
  String action = server.arg("action");

  if (device == "led_red") digitalWrite(LED_RED, action == "on" ? HIGH : LOW);
  else if (device == "led_green") digitalWrite(LED_GREEN, action == "on" ? HIGH : LOW);
  else if (device == "led_blue") digitalWrite(LED_BLUE, action == "on" ? HIGH : LOW);
  else if (device == "relay1") digitalWrite(RELAY1, action == "on" ? LOW : HIGH);
  else if (device == "relay2") digitalWrite(RELAY2, action == "on" ? LOW : HIGH);
  else if (device == "relay3") digitalWrite(RELAY3, action == "on" ? LOW : HIGH);
  else if (device == "relay4") digitalWrite(RELAY4, action == "on" ? LOW : HIGH);
  else if (device == "buzzer") digitalWrite(BUZZER, action == "on" ? HIGH : LOW);
  else if (device == "door") {
    if (action == "open") doorServo.write(90);
    else if (action == "close") doorServo.write(0);
  }

  server.send(200, "text/plain", "OK");
}

// قراءة القيم من الحساسات
void handleSensors() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  int ldrValue = analogRead(LDR_SENSOR);
  int gasValue = analogRead(GAS_SENSOR);
  int soundValue = analogRead(SOUND_SENSOR);
  int rainValue = analogRead(RAIN_SENSOR);
  bool motionDetected = digitalRead(PIR_SENSOR);

  // قراءة المسافة من Ultrasonic
  digitalWrite(ULTRA_TRIG, LOW);
  delayMicroseconds(2);
  digitalWrite(ULTRA_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(ULTRA_TRIG, LOW);
  long duration = pulseIn(ULTRA_ECHO, HIGH);
  float distance = duration * 0.034 / 2;

  // طباعة القيم باستخدام printf
  Serial.println("========== Sensor Readings ==========");
  Serial.printf("Temperature: %.1f °C\n", temperature);
  Serial.printf("Humidity   : %.1f %%\n", humidity);
  Serial.printf("LDR Light  : %d\n", ldrValue);
  Serial.printf("Gas Level  : %d\n", gasValue);
  Serial.printf("Sound Level: %d\n", soundValue);
  Serial.printf("Rain Value : %d\n", rainValue);
  Serial.printf("Motion     : %d\n", motionDetected);
  Serial.printf("Distance   : %.1f cm\n", distance);
  Serial.println("======================================");

  // إرسال القيم إلى المتصفح بصيغة JSON
  String json = "{";
  json += "\"temperature\":" + String(temperature, 1) + ",";
  json += "\"humidity\":" + String(humidity, 1) + ",";
  json += "\"ldr\":" + String(ldrValue) + ",";
  json += "\"gas\":" + String(gasValue) + ",";
  json += "\"sound\":" + String(soundValue) + ",";
  json += "\"rain\":" + String(rainValue) + ",";
  json += "\"motion\":" + String(motionDetected) + ",";
  json += "\"distance\":" + String(distance, 1);
  json += "}";

  server.send(200, "application/json", json);
}