#include <WiFi.h> // WiFi library
#include "DHT.h"         // DHT sensor library
 
// Define settings
const char* ssid    = "Wokwi-GUEST"; // WiFi SSID
const char* pass    = ""; // WiFi password
const char* domain  = "er6x-ady7-grh2";    // domain.tmep.cz
const char* guid    = "FMJMQ46RKUJETCEG";      // mojemereni
const long sleep_time    = 600000;            // How often send data to the server. Default is 600000ms = 10 minute
const byte dhtPin   = 18;                 // Pin where is DHT connected
const byte dhtType  = 22;                // DHT type, for DHT11 = 11, for DHT22 = 22
 
DHT dht(dhtPin, dhtType); // Initialize DHT sensor.
 
void setup() {
  // Start serial
  Serial.begin(115200);
  delay(10);
  Serial.println();
 
  // Connect to the WiFi
  Serial.print("Connecting to "); Serial.println(ssid);
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println();
  Serial.println("WiFi connected");
  Serial.print("IP address: "); Serial.println(WiFi.localIP());
  Serial.println();
 
  dht.begin(); // Initialize the DHT sensor
  delay(10000);
}
 
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();
 
  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
 
  // Connect to the HOST and send data via GET method
  WiFiClient client; // Use WiFiClient class to create TCP connections
 
  char host[50];            // Joining two chars is little bit difficult. Make new array, 50 bytes long
  strcpy(host, domain);     // Copy /domain/ in to the /host/
  strcat(host, ".tmep.cz"); // Add ".tmep.cz" at the end of the /host/. /host/ is now "/domain/.tmep.cz"
  const int httpPort = 80;
 
  Serial.print("Connecting to "); Serial.println(host);
  if (!client.connect(host, httpPort)) {
    // If you didn't get a connection to the server
    Serial.println("Connection failed");
    return;
  }
  Serial.println("Client connected");
 
  // Make an url. We need: /?guid=t&humV=h
  String url = "/?";
         url += guid;
         url += "=";
         url += t;
         url += "&humV=";
         url += h;
  Serial.print("Requesting URL: "); Serial.println(url);
 
  // Make a HTTP GETrequest.
  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" + 
               "Connection: close\r\n\r\n");
 
  // Workaroud for timeout
  unsigned long timeout = millis();
  while (client.available() == 0) {
    if (millis() - timeout > 5000) {
      Serial.println(">>> Client Timeout !");
      client.stop();
      return;
    }
  }
 
  Serial.println();
 
  // Wait for another round
  delay(sleep_time);
}