import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

/**
 * Http Function class
 *
 * @author grunclepug
 * @version hopefully the only one
 */
public class HttpFunctions
{
    //Constants
    private final String USER_AGENT = "Mozilla/5.0";

    //Variables
    private String url;

    public HttpFunctions(boolean registerFlag, boolean loginFlag, String urlParameters) throws Exception
    {
        if(registerFlag)
        {
            url = "https://summer2019.garytong.ca/register";
        }

        if(loginFlag)
        {
            url = "https://summer2019.garytong.ca/login";
        }

        sendPost(urlParameters);
    }

    // HTTP POST request
    private void sendPost(String urlParameters) throws Exception {

        URL obj = new URL(url);
        HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();

        //add request header
        con.setRequestMethod("POST");
        con.setRequestProperty("User-Agent", USER_AGENT);
        con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");

        // Send post request
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(urlParameters);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        if(responseCode == 202)
        {
            System.out.println("User registered!");
        }
        else if(responseCode == 200)
        {
            System.out.println("User logged in!");
        }
        else
        {
            System.out.println("Invalid input.");
        }
    }
}