#include "DHT.h"
#include <WiFiClientSaecure.h>

#define DHTPIN 33    // Digital pin connected to the DHT sensor
// Feather HUZZAH ESP8266 note: use pins 3, 4, 5, 12, 13 or 14 --
// Pin 15 can work but DHT must be disconnected during program upload.

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT 11
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)


DHT dht(DHTPIN, DHTTYPE);


char ssid[] = "Wokwi-GUEST";
char pass[] = "";
String GAS_ID = "AKfycbwVqQvqETG9tNbK-BE0yRJNNIDRjD7caxVrzFxM7KeW_5cVCiiMnA_iH1oGiVTACg5TtQ"; //--> spreadsheet script ID

//Your Domain name with URL path or IP address with path
const char* host = "script.google.com";
// ----------------------------------------------------------------------------------------------

#define UPDATE_INTERVAL_HOUR  (0)
#define UPDATE_INTERVAL_MIN   (0)
#define UPDATE_INTERVAL_SEC   (30)

#define UPDATE_INTERVAL_MS    ( ((UPDATE_INTERVAL_HOUR*60*60) + (UPDATE_INTERVAL_MIN * 60) + UPDATE_INTERVAL_SEC ) * 1000 )

// ----------------------------------------------------------------------------------------------

// ----------------------------------------------------------------------------------------------
void update_google_sheet()
{
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
    Serial.print("connecting to ");
    Serial.println(host);
  
    // Use WiFiClient class to create TCP connections
    WiFiClientSecure client;
    const int httpPort = 443; // 80 is for HTTP / 443 is for HTTPS!
    
    client.setInsecure(); // this is the magical line that makes everything work
    
    if (!client.connect(host, httpPort)) { //works!
      Serial.println("connection failed");
      return;
    }
       
    //----------------------------------------Processing data and sending data
    String url = "/macros/s/" + GAS_ID + "/exec?temperature=";
   
    url += String(t);
    
    url += "&humidity=";
    url += String(h);
    
    Serial.print("Requesting URL: ");
    Serial.println(url);
  
    // This will send the request to the server
    client.print(String("GET ") + url + " HTTP/1.1\r\n" +
                 "Host: " + host + "\r\n" + 
                 "Connection: close\r\n\r\n");
  
    Serial.println();
    Serial.println("closing connection");  
}

// ----------------------------------------------------------------------------------------------


void setup_wifi() {

  delay(10);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, pass);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }  

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

void setup() {
  Serial.begin(9600);
  setup_wifi();
  Serial.println(F("DHTxx test!"));

  dht.begin();
}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // 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();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  //float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) ) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  // Compute heat index in Fahrenheit (the default)
 // float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.println(F("°C "));
  update_google_sheet();


}