/**
 * Copyright (c) 2013, Redsolution LTD. All rights reserved.
 * 
 * This file is part of Xabber project; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License, Version 3.
 * 
 * Xabber 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 com.xabber.android.ui;

import java.util.Collection;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

import com.xabber.android.data.Application;
import com.xabber.android.data.account.OnAccountChangedListener;
import com.xabber.android.data.entity.BaseEntity;
import com.xabber.android.data.message.AbstractChat;
import com.xabber.android.data.message.OnChatChangedListener;
import com.xabber.android.data.roster.OnContactChangedListener;
import com.xabber.android.ui.adapter.ChatListAdapter;
import com.xabber.android.ui.helper.ManagedListActivity;
import com.xabber.androiddev.R;

public class ChatList extends ManagedListActivity implements
		OnAccountChangedListener, OnContactChangedListener,
		OnChatChangedListener, OnItemClickListener {

	private ChatListAdapter listAdapter;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		if (isFinishing())
			return;

		setContentView(R.layout.list);
		listAdapter = new ChatListAdapter(this);
		setListAdapter(listAdapter);
		getListView().setOnItemClickListener(this);

        getActionBar().setDisplayHomeAsUpEnabled(true);
	}

	@Override
	protected void onResume() {
		super.onResume();
		Application.getInstance().addUIListener(OnAccountChangedListener.class,
				this);
		Application.getInstance().addUIListener(OnContactChangedListener.class,
				this);
		Application.getInstance().addUIListener(OnChatChangedListener.class,
				this);
		listAdapter.onChange();
	}

	@Override
	protected void onPause() {
		super.onPause();
		Application.getInstance().removeUIListener(
				OnAccountChangedListener.class, this);
		Application.getInstance().removeUIListener(
				OnContactChangedListener.class, this);
		Application.getInstance().removeUIListener(OnChatChangedListener.class,
				this);
	}

	@Override
	public void onChatChanged(String account, String user, boolean incoming) {
		listAdapter.onChange();
	}

	@Override
	public void onContactsChanged(Collection<BaseEntity> addresses) {
		listAdapter.onChange();
	}

	@Override
	public void onAccountsChanged(Collection<String> accounts) {
		listAdapter.onChange();
	}

	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position,
			long id) {
		AbstractChat abstractChat = (AbstractChat) parent.getAdapter().getItem(
				position);
		startActivity(ChatViewer.createIntent(this, abstractChat.getAccount(),
				abstractChat.getUser()));
		finish();
	}

	public static Intent createIntent(Context context) {
		return new Intent(context, ChatList.class);
	}

}
