#ifdef ESP32
  #include <WiFi.h>
  #include <HTTPClient.h>
#else
  #include <ESP8266WiFi.h>
  #include <ESP8266HTTPClient.h>
  #include <WiFiClient.h>
#endif
 
#include <OneWire.h>
#include <DallasTemperature.h>
 
// Replace with your network credentials
const char* ssid     = "Wokwi-GUEST";
const char* password = "";
 
// REPLACE with your Domain name and URL path or IP address with path
const char* serverName = "http://esp32-book-2023.000webhostapp.com/esp-get-data.php";
 
const int oneWireBus = 4;
// Keep this API Key value to be compatible with the PHP code provided in the project page. 
// If you change the apiKeyValue value, the PHP file /post-esp-data.php also needs to have the same key 
String apiKeyValue = "kjsjkhjdhfd";
 
String sensorName = "temperature";
String sensorLocation = "home";
int sensorPin = A0;
int sensorValue = 0;  
 
OneWire oneWire(oneWireBus);
DallasTemperature sensors(&oneWire);
void setup() {
    pinMode(16, OUTPUT);
    pinMode(2, OUTPUT);
    digitalWrite(16, HIGH);
  Serial.begin(115200);
 
  // Start the DS18B20 sensor
  sensors.begin();
  
  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while(WiFi.status() != WL_CONNECTED) { 
    digitalWrite(2, LOW);
    delay(250);
    Serial.print(".");
    digitalWrite(2, HIGH); 
    delay(250);
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());
 
 
}
 
void loop() {
  //Check WiFi connection status
  if(WiFi.status()== WL_CONNECTED){
    
    digitalWrite(16, LOW); 
    HTTPClient http;
    
     sensors.requestTemperatures(); 
     float temperatureC = sensors.getTempCByIndex(0);
    // Your Domain name with URL path or IP address with path
    http.begin(serverName);
    
    // Specify content-type header
    http.addHeader("Content-Type", "application/x-www-form-urlencoded");
    
    // Prepare your HTTP POST request data
    String httpRequestData = "api_key=" + apiKeyValue + "&sensor=" + sensorName
                          + "&location=" + sensorLocation + "&value1=" +temperatureC
                          + "&value2=5678"+"";
    Serial.print("httpRequestData: ");
    Serial.println(httpRequestData);
    
    // Send HTTP POST request
 
  
    int httpResponseCode = http.POST(httpRequestData);
 
     String payload = http.getString(); 
        
    if (httpResponseCode>0) {
      Serial.print("HTTP Response code: ");
      Serial.println(httpResponseCode);
      Serial.println(payload);  
    }
    else {
      Serial.print("Error code: ");
      Serial.println(httpResponseCode);
    }
    // Free resources
    http.end();
//Send an HTTP POST request every 60 seconds
    delay(3000); 
  }
  else {
    Serial.println("WiFi Disconnected");
    digitalWrite(2, LOW);
    delay(250);
    Serial.print(".");
    digitalWrite(2, HIGH); 
    delay(250);
  }
  
   
}