#include <SoftwareSerial.h>
#include <ESP8266WiFi.h>

SoftwareSerial mySerial(13,15 ); //RX, TX

const char* ssid     = "Alter_3G";
const char* password = "xxxxxxx";

const char* host = "www.hoppaiplurret.se";

void setup() {
  Serial.begin(2400);
  delay(10);

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

  WiFi.begin(ssid, password);

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

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

  mySerial.begin(2400);
}

void loop() {
  // Store previous temperatur in static variable
  static String previousTemp = "0";
  if(mySerial.available() > 1){//Read from HC-12 and send to serial monitor

    String currentTemp = mySerial.readString();

    // only send update if temp has changed
    if (currentTemp != previousTemp){
        postTemp(currentTemp);
        previousTemp = currentTemp;
    }
  }
  delay(2000);
}

void postTemp(String temp) {
  Serial.print("connecting to ");
  Serial.println(host);

  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }

  // We now create a URI for the request
  String url = "/esp8266/index.php?temp=" + temp;

  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");
  delay(10);

  // Read all the lines of the reply from server and print them to Serial
  Serial.println("Respond:");
  while(client.available()){
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }

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