#include "WiFi.h"
#include "DHTesp.h"

WiFiClient client;

const int DHT_PIN = 15;
DHTesp dhtSensor;

String thingSpeakAddress = "api.thingspeak.com";
String writeAPIKey = "NIK329UB4N6M7PH3"; // ← Gantilah sesuai API key milikmu

void setup()
{
Serial.begin(9600);
WiFi.disconnect();
WiFi.begin("Wokwi-GUEST", "");
while (WiFi.status() != WL_CONNECTED) {
delay(300);
Serial.print(".");
}

Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());

dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop()
{
delay(2000);
TempAndHumidity data = dhtSensor.getTempAndHumidity();

float t = data.temperature;
float h = data.humidity;

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

kirim_thingspeak(t, h);
}

void kirim_thingspeak(float suhu, float hum) {
if (client.connect("api.thingspeak.com", 80)) {
String request_string = "/update?api_key=" + writeAPIKey;
request_string += "&field1=" + String(suhu, 2); // Suhu ke field1
request_string += "&field2=" + String(hum, 2); // Kelembaban ke field2

Serial.println(String("GET ") + request_string + " HTTP/1.1\r\n" +
"Host: " + thingSpeakAddress + "\r\n" +
"Connection: close\r\n\r\n");

client.print(String("GET ") + request_string + " HTTP/1.1\r\n" +
"Host: " + thingSpeakAddress + "\r\n" +
"Connection: close\r\n\r\n");

unsigned long timeout = millis();
while (client.available() == 0) {
if (millis() - timeout > 5000) {
Serial.println(">>> Client Timeout !");
client.stop();
return;
}
}

while (client.available()) {
String line = client.readStringUntil('\r');
Serial.print(line);
}

Serial.println();
Serial.println("closing connection");
client.stop();
}
}