package com.netfluke.sergey.connector;

import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.URL;
import java.net.URLConnection;

/* This code does not check permissions. Yours should! */

public class MainActivity extends AppCompatActivity {

    Handler dl;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        dl = new Handler();
    }

    @Override
    protected void onResume() {
        super.onResume();

        new Thread(new Runnable() {

            String res = null; // closed over by the post()-ed run().

            @Override
            public void run() {
                try {
                    URL url = new URL("https://cs65.cs.dartmouth.edu/" );
                    // URL url = new URL("https://cs65.cs.dartmouth.edu/nametest.pl?name=Sergey");
                    URLConnection urlConnection = url.openConnection();
                    InputStream in = urlConnection.getInputStream();
                    res = copyInputStreamToString(in);
                }
                catch( Exception e){
                    Log.d("THREAD", e.toString());
                }
                dl.post(new Runnable() {
                    @Override
                    public void run() {
                        TextView tv = findViewById(R.id.txt);
                        if( res == null )
                            tv.setText("Connection failed");
                        else
                            tv.setText(res);
                    }
                });
                Log.d("NET", (res!=null) ? res : "null response");
            }
        }).start();
    }

    private String copyInputStreamToString(InputStream in) throws IOException {
        BufferedReader r = new BufferedReader(new InputStreamReader(in));
        StringBuilder total = new StringBuilder();
        String line;
        while ((line = r.readLine()) != null) {
            total.append(line).append('\n');
        }
        return total.toString();
    }


}