/*

   Application Settings Activity

   Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz

   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.

   If a copy of the MPL was not distributed with this file, You can obtain one at

   http://mozilla.org/MPL/2.0/.

*/

package com.freerdp.freerdpcore.presentation;

import android.annotation.TargetApi;

import android.content.Context;

import android.content.DialogInterface;

import android.content.SharedPreferences;

import android.content.res.Configuration;

import android.os.Build;

import android.os.Bundle;

import android.preference.EditTextPreference;

import android.preference.Preference;

import android.preference.PreferenceFragment;

import android.preference.PreferenceManager;

import android.preference.PreferenceScreen;

import android.support.v7.app.AlertDialog;

import android.widget.Toast;

import com.freerdp.freerdpcore.R;

import com.freerdp.freerdpcore.utils.AppCompatPreferenceActivity;

import java.io.File;

import java.util.List;

import java.util.UUID;

public class ApplicationSettingsActivity extends AppCompatPreferenceActivity

{

	private static boolean isXLargeTablet(Context context)

	{

		return (context.getResources().getConfiguration().screenLayout &

		        Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;

	}

	@Override protected void onCreate(Bundle savedInstanceState)

	{

		super.onCreate(savedInstanceState);

		setupActionBar();

	}

	private void setupActionBar()

	{

		android.app.ActionBar actionBar = getActionBar();

		if (actionBar != null)

		{

			actionBar.setDisplayHomeAsUpEnabled(true);

		}

	}

	@Override public boolean onIsMultiPane()

	{

		return isXLargeTablet(this);

	}

	@Override

	@TargetApi(Build.VERSION_CODES.HONEYCOMB)

	public void onBuildHeaders(List<Header> target)

	{

		loadHeadersFromResource(R.xml.settings_app_headers, target);

	}

	protected boolean isValidFragment(String fragmentName)

	{

		return PreferenceFragment.class.getName().equals(fragmentName) ||

		    ClientPreferenceFragment.class.getName().equals(fragmentName) ||

		    UiPreferenceFragment.class.getName().equals(fragmentName) ||

		    PowerPreferenceFragment.class.getName().equals(fragmentName) ||

		    SecurityPreferenceFragment.class.getName().equals(fragmentName);

	}

	@TargetApi(Build.VERSION_CODES.HONEYCOMB)

	public static class ClientPreferenceFragment

	    extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener

	{

		@Override public void onCreate(Bundle savedInstanceState)

		{

			super.onCreate(savedInstanceState);

			addPreferencesFromResource(R.xml.settings_app_client);

			SharedPreferences preferences = get(getActivity());

			preferences.registerOnSharedPreferenceChangeListener(this);

		}

		@Override

		public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key)

		{

			if (isAdded())

			{

				final String clientNameKey = getString(R.string.preference_key_client_name);

				get(getActivity());

				if (key.equals(clientNameKey))

				{

					final String clientNameValue = sharedPreferences.getString(clientNameKey, "");

					EditTextPreference pref = (EditTextPreference)findPreference(clientNameKey);

					pref.setText(clientNameValue);

				}

			}

		}

	}

	@TargetApi(Build.VERSION_CODES.HONEYCOMB)

	public static class UiPreferenceFragment extends PreferenceFragment

	{

		@Override public void onCreate(Bundle savedInstanceState)

		{

			super.onCreate(savedInstanceState);

			addPreferencesFromResource(R.xml.settings_app_ui);

		}

	}

	@TargetApi(Build.VERSION_CODES.HONEYCOMB)

	public static class PowerPreferenceFragment extends PreferenceFragment

	{

		@Override public void onCreate(Bundle savedInstanceState)

		{

			super.onCreate(savedInstanceState);

			addPreferencesFromResource(R.xml.settings_app_power);

		}

	}

	@TargetApi(Build.VERSION_CODES.HONEYCOMB)

	public static class SecurityPreferenceFragment extends PreferenceFragment

	{

		@Override public void onCreate(Bundle savedInstanceState)

		{

			super.onCreate(savedInstanceState);

			addPreferencesFromResource(R.xml.settings_app_security);

		}

		@Override

		public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,

		                                     Preference preference)

		{

			final String clear =

			    getString(R.string.preference_key_security_clear_certificate_cache);

			if (preference.getKey().equals(clear))

			{

				showDialog();

				return true;

			}

			else

			{

				return super.onPreferenceTreeClick(preferenceScreen, preference);

			}

		}

		private void showDialog()

		{

			new AlertDialog.Builder(getActivity())

			    .setTitle(R.string.dlg_title_clear_cert_cache)

			    .setMessage(R.string.dlg_msg_clear_cert_cache)

			    .setPositiveButton(android.R.string.ok,

			                       new DialogInterface.OnClickListener() {

				                       @Override

				                       public void onClick(DialogInterface dialog, int which)

				                       {

					                       clearCertificateCache();

					                       dialog.dismiss();

				                       }

			                       })

			    .setNegativeButton(android.R.string.cancel,

			                       new DialogInterface.OnClickListener() {

				                       @Override

				                       public void onClick(DialogInterface dialog, int which)

				                       {

					                       dialog.dismiss();

				                       }

			                       })

			    .setIcon(android.R.drawable.ic_delete)

			    .show();

		}

		private boolean deleteDirectory(File dir)

		{

			if (dir.isDirectory())

			{

				String[] children = dir.list();

				for (String file : children)

				{

					if (!deleteDirectory(new File(dir, file)))

						return false;

				}

			}

			return dir.delete();

		}

		private void clearCertificateCache()

		{

			Context context = getActivity();

			if ((new File(context.getFilesDir() + "/.freerdp")).exists())

			{

				if (deleteDirectory(new File(context.getFilesDir() + "/.freerdp")))

					Toast.makeText(context, R.string.info_reset_success, Toast.LENGTH_LONG).show();

				else

					Toast.makeText(context, R.string.info_reset_failed, Toast.LENGTH_LONG).show();

			}

			else

				Toast.makeText(context, R.string.info_reset_success, Toast.LENGTH_LONG).show();

		}

	}

	public static SharedPreferences get(Context context)

	{

		Context appContext = context.getApplicationContext();

		PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_client, false);

		PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_power, false);

		PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_security, false);

		PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_ui, false);

		SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(appContext);

		final String key = context.getString(R.string.preference_key_client_name);

		final String value = preferences.getString(key, "");

		if (value.isEmpty())

		{

			final String android_id = UUID.randomUUID().toString();

			final String defaultValue = context.getString(R.string.preference_default_client_name);

			final String name = defaultValue + "-" + android_id;

			preferences.edit().putString(key, name.substring(0, 31)).apply();

		}

		return preferences;

	}

	public static int getDisconnectTimeout(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getInt(

		    context.getString(R.string.preference_key_power_disconnect_timeout), 0);

	}

	public static boolean getHideStatusBar(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(context.getString(R.string.preference_key_ui_hide_status_bar),

		                              false);

	}

	public static boolean getHideActionBar(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(context.getString(R.string.preference_key_ui_hide_action_bar),

		                              false);

	}

	public static boolean getAcceptAllCertificates(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(

		    context.getString(R.string.preference_key_accept_certificates), false);

	}

	public static boolean getHideZoomControls(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(

		    context.getString(R.string.preference_key_ui_hide_zoom_controls), false);

	}

	public static boolean getSwapMouseButtons(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(

		    context.getString(R.string.preference_key_ui_swap_mouse_buttons), false);

	}

	public static boolean getInvertScrolling(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(

		    context.getString(R.string.preference_key_ui_invert_scrolling), false);

	}

	public static boolean getAskOnExit(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(context.getString(R.string.preference_key_ui_ask_on_exit),

		                              false);

	}

	public static boolean getAutoScrollTouchPointer(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getBoolean(

		    context.getString(R.string.preference_key_ui_auto_scroll_touchpointer), false);

	}

	public static String getClientName(Context context)

	{

		SharedPreferences preferences = get(context);

		return preferences.getString(context.getString(R.string.preference_key_client_name), "");

	}

}