package se.leap.bitmaskclient;


import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;

import se.leap.bitmaskclient.drawer.NavigationDrawerFragment;
import se.leap.bitmaskclient.eip.EipCommand;
import se.leap.bitmaskclient.fragments.LogFragment;

import static se.leap.bitmaskclient.Constants.PROVIDER_KEY;
import static se.leap.bitmaskclient.Constants.REQUEST_CODE_CONFIGURE_LEAP;
import static se.leap.bitmaskclient.Constants.REQUEST_CODE_LOG_IN;
import static se.leap.bitmaskclient.Constants.REQUEST_CODE_SWITCH_PROVIDER;
import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES;
import static se.leap.bitmaskclient.EipFragment.ASK_TO_CANCEL_VPN;


public class MainActivity extends AppCompatActivity {

    private static Provider provider = new Provider();
    private static FragmentManagerEnhanced fragmentManager;
    private SharedPreferences preferences;

    private NavigationDrawerFragment navigationDrawerFragment;

    public final static String ACTION_SHOW_VPN_FRAGMENT = "action_show_vpn_fragment";
    public final static String ACTION_SHOW_LOG_FRAGMENT = "action_show_log_fragment";

    /**
     * Fragment managing the behaviors, interactions and presentation of the navigation drawer.
     */

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setSupportActionBar((Toolbar) findViewById(R.id.toolbar));

        navigationDrawerFragment = (NavigationDrawerFragment)
                getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);

        preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
        provider = ConfigHelper.getSavedProviderFromSharedPreferences(preferences);

        fragmentManager = new FragmentManagerEnhanced(getSupportFragmentManager());
        // Set up the drawer.
        navigationDrawerFragment.setUp(
                R.id.navigation_drawer,
                (DrawerLayout) findViewById(R.id.drawer_layout));

        handleIntentAction(getIntent());
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        setIntent(intent);
        handleIntentAction(intent);
    }

    private void handleIntentAction(Intent intent) {
        if (intent == null || intent.getAction() == null) {
            return;
        }

        Fragment fragment = null;
        switch (intent.getAction()) {
            case ACTION_SHOW_VPN_FRAGMENT:
                fragment = new EipFragment();
                Bundle bundle = new Bundle();
                if (intent.hasExtra(ASK_TO_CANCEL_VPN)) {
                    bundle.putBoolean(ASK_TO_CANCEL_VPN, true);
                }
                bundle.putParcelable(PROVIDER_KEY, provider);
                fragment.setArguments(bundle);
                break;
            case ACTION_SHOW_LOG_FRAGMENT:
                fragment = new LogFragment();
                break;
            default:
                break;
        }

        if (fragment != null) {
            new FragmentManagerEnhanced(getSupportFragmentManager()).beginTransaction()
                    .replace(R.id.container, fragment)
                    .commit();
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (data == null) {
            return;
        }

        if (resultCode == RESULT_OK && data.hasExtra(Provider.KEY)) {
            provider = data.getParcelableExtra(Provider.KEY);

            if (provider == null) {
                return;
            }

            ConfigHelper.storeProviderInPreferences(preferences, provider);
            navigationDrawerFragment.refresh();

            switch (requestCode) {
                case REQUEST_CODE_SWITCH_PROVIDER:
                    EipCommand.stopVPN(this);
                    break;
                case REQUEST_CODE_CONFIGURE_LEAP:
                    break;
                case REQUEST_CODE_LOG_IN:
                    EipCommand.startVPN(this);
                    break;
            }
        }

        Fragment fragment = new EipFragment();
        Bundle arguments = new Bundle();
        arguments.putParcelable(PROVIDER_KEY, provider);
        fragment.setArguments(arguments);
        fragmentManager.beginTransaction()
                .replace(R.id.container, fragment)
                .commit();
    }
}