/*
 * 				Firetweet - Twitter client for Android
 * 
 *  Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.getlantern.firetweet.fragment;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Switch;

import org.getlantern.firetweet.Constants;
import org.getlantern.firetweet.R;
import org.getlantern.firetweet.model.ParcelableAccount;
import org.getlantern.firetweet.util.UserColorNameUtils;

public abstract class BaseAccountPreferenceFragment extends PreferenceFragment implements Constants,
		OnCheckedChangeListener, OnSharedPreferenceChangeListener {

	@Override
	public void onActivityCreated(final Bundle savedInstanceState) {
		super.onActivityCreated(savedInstanceState);
		setHasOptionsMenu(true);
		final PreferenceManager pm = getPreferenceManager();
		final ParcelableAccount account = getArguments().getParcelable(EXTRA_ACCOUNT);
		final String preferenceName = ACCOUNT_PREFERENCES_NAME_PREFIX
				+ (account != null ? account.account_id : "unknown");
		pm.setSharedPreferencesName(preferenceName);
		addPreferencesFromResource(getPreferencesResource());
		final SharedPreferences prefs = pm.getSharedPreferences();
		prefs.registerOnSharedPreferenceChangeListener(this);
		final Activity activity = getActivity();
		final Intent intent = activity.getIntent();
		if (account != null && intent.hasExtra(PreferenceActivity.EXTRA_SHOW_FRAGMENT)) {
			final String name = UserColorNameUtils.getDisplayName(getActivity(), account.account_id, account.name, account.screen_name);
			activity.setTitle(name);
		}
		updatePreferenceScreen();
	}

	@Override
	public void onCheckedChanged(final CompoundButton buttonView, final boolean isChecked) {
		final SharedPreferences prefs = getPreferenceManager().getSharedPreferences();
		final SharedPreferences.Editor editor = prefs.edit();
		if (prefs.getBoolean(getSwitchPreferenceKey(), getSwitchPreferenceDefault()) != isChecked) {
			editor.putBoolean(getSwitchPreferenceKey(), isChecked);
			editor.apply();
		}
	}

	@Override
	public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
		inflater.inflate(R.menu.menu_switch_preference, menu);
		final View actionView = menu.findItem(MENU_TOGGLE).getActionView();
		final Switch toggle = (Switch) actionView.findViewById(android.R.id.toggle);
		final SharedPreferences prefs = getPreferenceManager().getSharedPreferences();
		toggle.setOnCheckedChangeListener(this);
		toggle.setChecked(prefs.getBoolean(getSwitchPreferenceKey(), getSwitchPreferenceDefault()));
		super.onCreateOptionsMenu(menu, inflater);
	}

	@Override
	public void onSharedPreferenceChanged(final SharedPreferences sharedPreferences, final String key) {
		if (key.equals(getSwitchPreferenceKey())) {
			updatePreferenceScreen();
		}
	}

	protected ParcelableAccount getAccount() {
		final Bundle args = getArguments();
		if (args == null) return null;
		return args.getParcelable(EXTRA_ACCOUNT);
	}

	protected abstract int getPreferencesResource();

	protected abstract boolean getSwitchPreferenceDefault();

	protected abstract String getSwitchPreferenceKey();

	private void updatePreferenceScreen() {
		final PreferenceScreen screen = getPreferenceScreen();
		final SharedPreferences sharedPreferences = getPreferenceManager().getSharedPreferences();
		if (screen == null || sharedPreferences == null) return;
		screen.setEnabled(sharedPreferences.getBoolean(getSwitchPreferenceKey(), getSwitchPreferenceDefault()));
	}
}