/*
Yaaic - Yet Another Android IRC Client

Copyright 2009-2013 Sebastian Kaspari

This file is part of Yaaic.

Yaaic 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.

Yaaic 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 Yaaic.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.yaaic;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Set;

import org.yaaic.db.Database;
import org.yaaic.model.Server;

import android.content.Context;

/**
 * Global Master Class :)
 * 
 * @author Sebastian Kaspari <sebastian@yaaic.org>
 */
public class Yaaic
{
    public static Yaaic              instance;

    private HashMap<Integer, Server> servers;
    private boolean                  serversLoaded = false;

    /**
     * Private constructor, you may want to use static getInstance()
     */
    private Yaaic()
    {
        servers = new HashMap<Integer, Server>();
    }

    /**
     * Load servers from database
     * 
     * @param context
     */
    public void loadServers(Context context)
    {
        if (!serversLoaded) {
            Database db = new Database(context);
            servers = db.getServers();
            db.close();

            // context.sendBroadcast(new Intent(Broadcast.SERVER_UPDATE));
            serversLoaded = true;
        }
    }

    /**
     * Get global Yaaic instance
     * 
     * @return the global Yaaic instance
     */
    public static Yaaic getInstance()
    {
        if (instance == null) {
            instance = new Yaaic();
        }

        return instance;
    }

    /**
     * Get server by id
     * 
     * @return Server object with given unique id
     */
    public Server getServerById(int serverId)
    {
        return servers.get(serverId);
    }

    /**
     * Remove server with given unique id from list
     * 
     * @param serverId
     */
    public void removeServerById(int serverId)
    {
        servers.remove(serverId);
    }

    /**
     * Add server to list
     */
    public void addServer(Server server)
    {
        if (!servers.containsKey(server.getId())) {
            servers.put(server.getId(), server);
        }
    }

    /**
     * Update a server in list
     */
    public void updateServer(Server server)
    {
        servers.put(server.getId(), server);
    }

    /**
     * Get list of servers
     * 
     * @return list of servers
     */
    public ArrayList<Server> getServersAsArrayList()
    {
        ArrayList<Server> serverList = new ArrayList<Server>();

        Set<Integer> mKeys = servers.keySet();
        for (int key : mKeys) {
            serverList.add(servers.get(key));
        }

        return serverList;
    }
}