#include <WiFi.h>
#include <WiFiClient.h>
#include <DHT.h>
#include <Ultrasonic.h>
#include <ThingSpeak.h>

#define DHTPIN 2
#define DHTTYPE DHT22
#define TRIG_PIN 5
#define ECHO_PIN 18
#define redled 13
#define yellowled 12
#define blueled 14

DHT dht(DHTPIN, DHTTYPE);
Ultrasonic ultrasonic(TRIG_PIN, ECHO_PIN);

const char* ssid = "Wokwi-GUEST";
const char* pass = "";

WiFiClient client;

unsigned long ChannelID = 2367902;
const char *WriteAPI = "B0I7XV0PAX9B6B01";

void setup() {
  Serial.begin(9600);
  pinMode(DHTPIN, INPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(redled, OUTPUT);
  pinMode(yellowled, OUTPUT);
  pinMode(blueled, OUTPUT);
  
  Serial.println("WiFi Aranıyor...");
  int networks = WiFi.scanNetworks();
  if (networks == 0) {
    Serial.println("WiFi Ağı Yok!");
  } else {
    Serial.print(networks);
    Serial.println(" Ağ Bulundu!");
    for (int i = 0; i < networks; i++)
      Serial.println(WiFi.SSID(i));
    delay(10);
  }

  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
  }
  Serial.println("WiFi Bağlandı!");
  Serial.println(WiFi.localIP());

  ThingSpeak.begin(client);
}

void loop() {
  float t = dht.readTemperature();
  float h = dht.readHumidity();

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

  Serial.print("Mesafe: ");
  Serial.print(distance);
  Serial.println(" cm");

  if (t > 30 || distance < 10) {
    digitalWrite(redled, HIGH);
    digitalWrite(yellowled, LOW);
    digitalWrite(blueled, LOW);
    Serial.println("\nHava çok sıcak veya cisim yakın!");
    Serial.println("Sıcaklık: " + String(t));
    Serial.println("Nem: " + String(h));
  } else if (t > 10) {
    digitalWrite(redled, LOW);
    digitalWrite(yellowled, HIGH);
    digitalWrite(blueled, LOW);
    Serial.println("\nHava normal!");
    Serial.println("Sıcaklık: " + String(t));
    Serial.println("Nem: " + String(h));
  } else {
    digitalWrite(redled, LOW);
    digitalWrite(yellowled, LOW);
    digitalWrite(blueled, HIGH);
    Serial.println("\nHava soğuk!");
    Serial.println("Sıcaklık: " + String(t));
    Serial.println("Nem: " + String(h));
  }

  int x = ThingSpeak.writeField(ChannelID, 1, String(t), WriteAPI);
  if (x == 200) {
    Serial.println("Sıcaklık değeri Thingspeak kanalına yazıldı.");
  } else {
    Serial.println("Sıcaklık değeri Thingspeak kanalına yazılamadı.");
  }

  int y = ThingSpeak.writeField(ChannelID, 2, String(h), WriteAPI);
  if (y == 200) {
    Serial.println("Nem değeri Thingspeak kanalına yazıldı.");
  } else {
    Serial.println("Nem değeri Thingspeak kanalına yazılamadı.");
  }

  int z = ThingSpeak.writeField(ChannelID, 3, String(distance), WriteAPI);
  if (z == 200) {
    Serial.println("Mesafe değeri Thingspeak kanalına yazıldı.");
  } else {
    Serial.println("Mesafe değeri Thingspeak kanalına yazılamadı.");
  }

  delay(20000);
}