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

#define DHTPIN 19
DHTesp dht;

String server="https://bipfunctionns2024.azurewebsites.net/api/"; // Cloud server address
const char *api_key = "ji84HUd93hvnjHIEidfhiD93iash8ahbjjfdKJ389f74dsjkrvHJE=="; // authorization key

#define BUF_SIZE  200
char buffer[BUF_SIZE];
const char *payload =  
"{ \
  \"sender\": \"tibor\", \
  \"recipient\": \"telemetry-tibor\", \
  \"messageText\": \"temperature: %.1f C  humidity: %.1f%%\" \
}"; 

int lastmillis;
int lastmillis2;


void send_message(float temperature, float humidity) {
  HTTPClient http;

  String url = server + "Message";
  Serial.println(url);

  http.begin(url);
  http.addHeader("x-functions-key", api_key, true, true);

  Serial.print("[HTTPS] POST...\n");
  // start connection and send HTTP request
  snprintf(buffer, BUF_SIZE, payload, temperature, (char)176, humidity);
  Serial.println(buffer);
  int httpCode = http.POST(buffer);

  // httpCode will be negative on error
  if(httpCode > 0) {
      // HTTP request has been sent and the server response header has been received
      Serial.printf("[HTTPS] POST... code: %d\n", httpCode);
      if(httpCode == HTTP_CODE_OK) {
          Serial.println("POST was successful. This is the response:");
          String response = http.getString();
          Serial.println(response);
      }
  } else {
      Serial.printf("[HTTPS] POST... failed, error: %s\n", http.errorToString(httpCode).c_str());
  }
  http.end();
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  dht.setup(DHTPIN, DHTesp::DHT22);
  Serial.println("Cloud send temperature");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) { // Wait for connection
    if ((millis()-lastmillis)>500) {
      Serial.println("Connecting to WiFi..");
      lastmillis=millis();
    }
  }
  Serial.print("Connected to the WiFi AP. My address is: ");
  Serial.println(WiFi.localIP());

  lastmillis2=millis();
  TempAndHumidity th = dht.getTempAndHumidity();
  send_message(th.temperature, th.humidity);
}

void loop() {
  if ((millis()-lastmillis2)>20000) {
      lastmillis2=millis();
      TempAndHumidity th = dht.getTempAndHumidity();
      send_message(th.temperature, th.humidity);
    }
  
}