#include <stdlib.h> 
#include <ArduinoJson.h>

#define SSID "hangar_polivalent" // insert your SSID
#define PASS "p0l1v4l3nc14s" // insert your password
#define LOCATIONID "41.3871/2.1685" // location id
#define DST_IP "208.113.226.171" //earthtools.org

StaticJsonBuffer<200> jsonBuffer;

void setup()
{
  Serial1.begin(9600);
  Serial1.setTimeout(5000);
  Serial.begin(9600); // for debuging
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }
  Serial.println("Init");

  Serial1.println("AT+RST"); // restet and test if module is redy
  delay(1000);
  if (Serial1.find("ready")) {
    Serial.println("WiFi - Module is ready");
  } else {
    Serial.println("WiFi - Module is missing");
    while (1);
  }
  delay(1000);
  // try to connect to wifi
  boolean connected = false;
  for (int i = 0; i < 5; i++) {
    if (connectWiFi()) {
      connected = true;
      break;
    }
  }
  if (!connected) {
    while (1);
  }
  delay(5000);
  Serial1.println("AT+CIPMUX=0"); // set to single connection mode
}
void loop()
{
  String cmd = "AT+CIPSTART=\"TCP\",\"";
  cmd += DST_IP;
  cmd += "\",80";
  Serial1.println(cmd);
  Serial.print(cmd);
  if (Serial1.find("Error")) return;
  cmd = "GET /timezone/";
  cmd += LOCATIONID;
  cmd += " HTTP/1.0\r\nHost: www.earthtools.org\r\n\r\n";
  Serial1.print("AT+CIPSEND=");
  Serial1.println(cmd.length());
  if (Serial1.find(">")) {
    Serial.println(">");
  } else {
    Serial1.println("AT+CIPCLOSE");
    Serial.println("connection timeout");
    delay(1000);
    return;
  }
  Serial1.print(cmd);
  unsigned int i = 0; //timeout counter
  
  //char json[100] = "{";
  while (!Serial1.find("<localtime>")) {} // find the part we are interested in.
  while (!Serial1.find("2015 ")) {} // find the part we are interested in.
  
  char h[2];
  Serial1.readBytes(h, 2);
  int hour = atoi(h);
  
  Serial.println(hour);
  
  // flush
  while(Serial1.available()){
    char c = Serial1.read();
  }
  
  delay(20000);
}

boolean connectWiFi()
{
  Serial1.println("AT+CWMODE=1");
  String cmd = "AT+CWJAP=\"";
  cmd += SSID;
  cmd += "\",\"";
  cmd += PASS;
  cmd += "\"";
  Serial.println(cmd);
  Serial1.println(cmd);
  delay(2000);
  if (Serial1.find("OK")) {
    Serial.println("OK, Connected to WiFi.");
    return true;
  } else {
    Serial.println("Can not connect to the WiFi.");
    return false;
  }
}