package fr.utbm.lo53.p2017.positionningapp;

import android.content.Context;
import android.content.Intent;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;

import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.List;

import fr.utbm.lo53.p2017.positionningapp.network.URLSolver;

public abstract class BaseActivity extends AppCompatActivity {

    private URLSolver urlSolver;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        String defaultHostname = getString(R.string.pref_default_hostname);
        String defaultPort = getString(R.string.pref_default_port);
        urlSolver = new URLSolver(PreferenceManager.getDefaultSharedPreferences(this), defaultHostname, defaultPort);
    }

    @Override
    protected void onResume() {
        super.onResume();
        PreferenceManager.getDefaultSharedPreferences(this).registerOnSharedPreferenceChangeListener(getURLSolver());
    }

    @Override
    protected void onPause() {
        super.onPause();
        PreferenceManager.getDefaultSharedPreferences(this).registerOnSharedPreferenceChangeListener(getURLSolver());
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            Intent intent = new Intent(this, SettingsActivity.class);
            startActivity(intent);
            return true;
        }
        if (id == R.id.open_locate_activity) {
            Intent intent = new Intent(this, PositioningActivity.class);
            startActivity(intent);
            return true;
        }
        if (id == R.id.open_calibration_activity) {
            Intent intent = new Intent(this, Calibration.class);
            startActivity(intent);
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_calibration, menu);
        return true;
    }

    public URLSolver getURLSolver() {
        return urlSolver;
    }

    protected String getMacAddress() {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
            // Get MAC address prior to android 6.0
            WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
            WifiInfo wInfo = wifiManager.getConnectionInfo();
            return wInfo.getMacAddress();
        } else {
            // Removed in Android 6.0 -> manually get MAC address
            try {
                List<NetworkInterface> all = Collections.list(NetworkInterface.getNetworkInterfaces());
                for (NetworkInterface nif : all) {
                    if (!nif.getName().equalsIgnoreCase("wlan0")) continue;

                    byte[] macBytes = nif.getHardwareAddress();
                    if (macBytes == null) {
                        return "";
                    }

                    StringBuilder res1 = new StringBuilder();
                    for (byte b : macBytes) {
                        //res1.append(Integer.toHexString(b & 0xFF) + ":");
                        res1.append(String.format("%02X:", b));
                    }

                    if (res1.length() > 0) {
                        res1.deleteCharAt(res1.length() - 1);
                    }
                    return res1.toString();
                }
            } catch (SocketException e) {
                e.printStackTrace();
            }
            return "02:00:00:00:00:00";
        }
    }

}