/*
 * 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 net.sf.l2j.gameserver.communitybbs.Manager;

import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.concurrent.ConcurrentHashMap;

import net.sf.l2j.gameserver.communitybbs.BB.Forum;
import net.sf.l2j.gameserver.communitybbs.BB.Post;
import net.sf.l2j.gameserver.communitybbs.BB.Topic;
import net.sf.l2j.gameserver.datatables.ClanTable;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.util.StringUtil;

public class TopicBBSManager extends BaseBBSManager
{
	private final List<Topic> _table;
	private final Map<Forum, Integer> _maxId;
	
	public static TopicBBSManager getInstance()
	{
		return SingletonHolder._instance;
	}
	
	protected TopicBBSManager()
	{
		_table = new ArrayList<>();
		_maxId = new ConcurrentHashMap<>();
	}
	
	public void addTopic(Topic tt)
	{
		_table.add(tt);
	}
	
	public void delTopic(Topic topic)
	{
		_table.remove(topic);
	}
	
	public void setMaxID(int id, Forum f)
	{
		_maxId.put(f, id);
	}
	
	public int getMaxID(Forum f)
	{
		Integer i = _maxId.get(f);
		if (i == null)
			return 0;
		
		return i;
	}
	
	public Topic getTopicByID(int idf)
	{
		for (Topic t : _table)
		{
			if (t.getID() == idf)
				return t;
		}
		return null;
	}
	
	@Override
	public void parseWrite(String ar1, String ar2, String ar3, String ar4, String ar5, L2PcInstance activeChar)
	{
		if (ar1.equals("crea"))
		{
			Forum f = ForumsBBSManager.getInstance().getForumByID(Integer.parseInt(ar2));
			if (f == null)
			{
				separateAndSend("<html><body><br><br><center>The forum named '" + ar2 + "' doesn't exist.</center></body></html>", activeChar);
				return;
			}
			
			f.vload();
			Topic t = new Topic(Topic.ConstructorType.CREATE, TopicBBSManager.getInstance().getMaxID(f) + 1, Integer.parseInt(ar2), ar5, Calendar.getInstance().getTimeInMillis(), activeChar.getName(), activeChar.getObjectId(), Topic.MEMO, 0);
			f.addTopic(t);
			TopicBBSManager.getInstance().setMaxID(t.getID(), f);
			
			Post p = new Post(activeChar.getName(), activeChar.getObjectId(), Calendar.getInstance().getTimeInMillis(), t.getID(), f.getID(), ar4);
			PostBBSManager.getInstance().addPostByTopic(p, t);
			
			parseCmd("_bbsmemo", activeChar);
		}
		else if (ar1.equals("del"))
		{
			Forum f = ForumsBBSManager.getInstance().getForumByID(Integer.parseInt(ar2));
			if (f == null)
			{
				separateAndSend("<html><body><br><br><center>The forum named '" + ar2 + "' doesn't exist.</center></body></html>", activeChar);
				return;
			}
			
			Topic t = f.getTopic(Integer.parseInt(ar3));
			if (t == null)
			{
				separateAndSend("<html><body><br><br><center>The topic named '" + ar3 + "' doesn't exist.</center></body></html>", activeChar);
				return;
			}
			
			Post p = PostBBSManager.getInstance().getPostByTopic(t);
			if (p != null)
				p.deleteMe(t);
			
			t.deleteMe(f);
			parseCmd("_bbsmemo", activeChar);
		}
		else
			separateAndSend("<html><body><br><br><center>The command: " + ar1 + " isn't implemented.</center></body></html>", activeChar);
	}
	
	@Override
	public void parseCmd(String command, L2PcInstance activeChar)
	{
		if (command.equals("_bbsmemo"))
		{
			showTopics(activeChar.getMemo(), activeChar, 1, activeChar.getMemo().getID());
		}
		else if (command.startsWith("_bbstopics;read"))
		{
			StringTokenizer st = new StringTokenizer(command, ";");
			st.nextToken();
			st.nextToken();
			
			int idf = Integer.parseInt(st.nextToken());
			
			String index = null;
			if (st.hasMoreTokens())
				index = st.nextToken();
			
			int ind = 0;
			if (index == null)
				ind = 1;
			else
				ind = Integer.parseInt(index);
			
			showTopics(ForumsBBSManager.getInstance().getForumByID(idf), activeChar, ind, idf);
		}
		else if (command.startsWith("_bbstopics;crea"))
		{
			StringTokenizer st = new StringTokenizer(command, ";");
			st.nextToken();
			st.nextToken();
			
			int idf = Integer.parseInt(st.nextToken());
			
			showNewTopic(ForumsBBSManager.getInstance().getForumByID(idf), activeChar, idf);
		}
		else if (command.startsWith("_bbstopics;del"))
		{
			StringTokenizer st = new StringTokenizer(command, ";");
			st.nextToken();
			st.nextToken();
			
			int idf = Integer.parseInt(st.nextToken());
			int idt = Integer.parseInt(st.nextToken());
			
			Forum f = ForumsBBSManager.getInstance().getForumByID(idf);
			if (f == null)
			{
				separateAndSend("<html><body><br><br><center>The forum named '" + idf + "' doesn't exist.</center></body></html>", activeChar);
				return;
			}
			
			Topic t = f.getTopic(idt);
			if (t == null)
			{
				separateAndSend("<html><body><br><br><center>The topic named '" + idt + "' doesn't exist.</center></body></html>", activeChar);
				return;
			}
			
			Post p = PostBBSManager.getInstance().getPostByTopic(t);
			if (p != null)
				p.deleteMe(t);
			
			t.deleteMe(f);
			parseCmd("_bbsmemo", activeChar);
		}
		else
			separateAndSend("<html><body><br><br><center>The command: " + command + " isn't implemented.</center></body></html>", activeChar);
	}
	
	private static void showNewTopic(Forum forum, L2PcInstance activeChar, int idf)
	{
		if (forum == null)
		{
			separateAndSend("<html><body><br><br><center>The forum named '" + idf + "' doesn't exist.</center></body></html>", activeChar);
			return;
		}
		
		if (forum.getType() == Forum.MEMO)
			showMemoNewTopics(forum, activeChar);
		else
			separateAndSend("<html><body><br><br><center>The forum named '" + forum.getName() + "' doesn't exist.</center></body></html>", activeChar);
	}
	
	private static void showMemoNewTopics(Forum forum, L2PcInstance activeChar)
	{
		final String html = StringUtil.concat("<html>" + "<body><br><br>" + "<table border=0 width=610><tr><td width=10></td><td width=600 align=left>" + "<a action=\"bypass _bbshome\">HOME</a>&nbsp;>&nbsp;<a action=\"bypass _bbsmemo\">Memo Form</a>" + "</td></tr>" + "</table>" + "<img src=\"L2UI.squareblank\" width=\"1\" height=\"10\">" + "<center>" + "<table border=0 cellspacing=0 cellpadding=0>" + "<tr><td width=610><img src=\"sek.cbui355\" width=\"610\" height=\"1\"><br1><img src=\"sek.cbui355\" width=\"610\" height=\"1\"></td></tr>" + "</table>" + "<table fixwidth=610 border=0 cellspacing=0 cellpadding=0>" + "<tr><td><img src=\"l2ui.mini_logo\" width=5 height=20></td></tr>" + "<tr>" + "<td><img src=\"l2ui.mini_logo\" width=5 height=1></td>" + "<td align=center FIXWIDTH=60 height=29>&$413;</td>" + "<td FIXWIDTH=540><edit var = \"Title\" width=540 height=13></td>" + "<td><img src=\"l2ui.mini_logo\" width=5 height=1></td>" + "</tr></table>" + "<table fixwidth=610 border=0 cellspacing=0 cellpadding=0>" + "<tr><td><img src=\"l2ui.mini_logo\" width=5 height=10></td></tr>" + "<tr>" + "<td><img src=\"l2ui.mini_logo\" width=5 height=1></td>" + "<td align=center FIXWIDTH=60 height=29 valign=top>&$427;</td>" + "<td align=center FIXWIDTH=540><MultiEdit var =\"Content\" width=535 height=313></td>" + "<td><img src=\"l2ui.mini_logo\" width=5 height=1></td>" + "</tr>" + "<tr><td><img src=\"l2ui.mini_logo\" width=5 height=10></td></tr>" + "</table>" + "<table fixwidth=610 border=0 cellspacing=0 cellpadding=0>" + "<tr><td><img src=\"l2ui.mini_logo\" width=5 height=10></td></tr>" + "<tr>" + "<td><img src=\"l2ui.mini_logo\" width=5 height=1></td>" + "<td align=center FIXWIDTH=60 height=29>&nbsp;</td>" + "<td align=center FIXWIDTH=70><button value=\"&$140;\" action=\"Write Topic crea ", String.valueOf(forum.getID()), " Title Content Title\" back=\"l2ui_ch3.smallbutton2_down\" width=65 height=20 fore=\"l2ui_ch3.smallbutton2\" ></td>" + "<td align=center FIXWIDTH=70><button value = \"&$141;\" action=\"bypass _bbsmemo\" back=\"l2ui_ch3.smallbutton2_down\" width=65 height=20 fore=\"l2ui_ch3.smallbutton2\"> </td>" + "<td align=center FIXWIDTH=400>&nbsp;</td>" + "<td><img src=\"l2ui.mini_logo\" width=5 height=1></td>" + "</tr></table>" + "</center>" + "</body>" + "</html>");
		send1001(html, activeChar);
		send1002(activeChar);
	}
	
	private void showTopics(Forum forum, L2PcInstance activeChar, int index, int idf)
	{
		if (forum == null)
		{
			separateAndSend("<html><body><br><br><center>The forum named '" + idf + "' doesn't exist.</center></body></html>", activeChar);
			return;
		}
		
		if (forum.getType() == Forum.MEMO)
			showMemoTopics(forum, activeChar, index);
		else
			separateAndSend("<html><body><br><br><center>The forum named '" + forum.getName() + "' doesn't exist.</center></body></html>", activeChar);
	}
	
	private void showMemoTopics(Forum forum, L2PcInstance activeChar, int index)
	{
		forum.vload();
		final StringBuilder html = StringUtil.startAppend(2000, "<html><body><br><br>" + "<table border=0 width=610><tr><td width=10></td><td width=600 align=left>" + "<a action=\"bypass _bbshome\">HOME</a>&nbsp;>&nbsp;<a action=\"bypass _bbsmemo\">Memo Form</a>" + "</td></tr>" + "</table>" + "<img src=\"L2UI.squareblank\" width=\"1\" height=\"10\">" + "<center>" + "<table border=0 cellspacing=0 cellpadding=2 bgcolor=888888 width=610>" + "<tr>" + "<td FIXWIDTH=5></td>" + "<td FIXWIDTH=415 align=center>&$413;</td>" + "<td FIXWIDTH=120 align=center></td>" + "<td FIXWIDTH=70 align=center>&$418;</td>" + "</tr>" + "</table>");
		
		final DateFormat dateFormat = DateFormat.getInstance();
		for (int i = 0, j = getMaxID(forum) + 1; i < 12 * index; j--)
		{
			if (j < 0)
				break;
			
			Topic t = forum.getTopic(j);
			if (t != null)
			{
				if (i++ >= 12 * (index - 1))
				{
					StringUtil.append(html, "<table border=0 cellspacing=0 cellpadding=5 WIDTH=610>" + "<tr>" + "<td FIXWIDTH=5></td>" + "<td FIXWIDTH=415><a action=\"bypass _bbsposts;read;", String.valueOf(forum.getID()), ";", String.valueOf(t.getID()), "\">", t.getName(), "</a></td>" + "<td FIXWIDTH=120 align=center></td>" + "<td FIXWIDTH=70 align=center>", dateFormat.format(new Date(t.getDate())), "</td>" + "</tr>" + "</table>" + "<img src=\"L2UI.Squaregray\" width=\"610\" height=\"1\">");
				}
			}
		}
		
		html.append("<br>" + "<table width=610 cellspace=0 cellpadding=0>" + "<tr>" + "<td width=50>" + "<button value=\"&$422;\" action=\"bypass _bbsmemo\" back=\"l2ui_ch3.smallbutton2_down\" width=65 height=20 fore=\"l2ui_ch3.smallbutton2\">" + "</td>" + "<td width=510 align=center>" + "<table border=0><tr>");
		
		if (index == 1)
			html.append("<td><button action=\"\" back=\"l2ui_ch3.prev1_down\" fore=\"l2ui_ch3.prev1\" width=16 height=16 ></td>");
		else
			StringUtil.append(html, "<td><button action=\"bypass _bbstopics;read;", String.valueOf(forum.getID()), ";", String.valueOf(index - 1), "\" back=\"l2ui_ch3.prev1_down\" fore=\"l2ui_ch3.prev1\" width=16 height=16 ></td>");
		
		int nbp;
		nbp = forum.getTopicSize() / 8;
		if (nbp * 8 != ClanTable.getInstance().getClans().length)
			nbp++;
		
		for (int i = 1; i <= nbp; i++)
		{
			if (i == index)
				StringUtil.append(html, "<td> ", String.valueOf(i), " </td>");
			else
				StringUtil.append(html, "<td><a action=\"bypass _bbstopics;read;", String.valueOf(forum.getID()), ";", String.valueOf(i), "\"> ", String.valueOf(i), " </a></td>");
		}
		
		if (index == nbp)
			html.append("<td><button action=\"\" back=\"l2ui_ch3.next1_down\" fore=\"l2ui_ch3.next1\" width=16 height=16 ></td>");
		else
			StringUtil.append(html, "<td><button action=\"bypass _bbstopics;read;", String.valueOf(forum.getID()), ";", String.valueOf(index + 1), "\" back=\"l2ui_ch3.next1_down\" fore=\"l2ui_ch3.next1\" width=16 height=16 ></td>");
		
		StringUtil.append(html, "</tr></table> </td> " + "<td align=right><button value = \"&$421;\" action=\"bypass _bbstopics;crea;", String.valueOf(forum.getID()), "\" back=\"l2ui_ch3.smallbutton2_down\" width=65 height=20 fore=\"l2ui_ch3.smallbutton2\" ></td></tr>" + "<tr><td><img src=\"l2ui.mini_logo\" width=5 height=10></td></tr>" + "<tr> " + "<td></td>" + "<td align=center><table border=0><tr><td></td><td><edit var = \"Search\" width=130 height=11></td>" + "<td><button value=\"&$420;\" action=\"Write 5 -2 0 Search _ _\" back=\"l2ui_ch3.smallbutton2_down\" width=65 height=20 fore=\"l2ui_ch3.smallbutton2\"> </td> </tr></table> </td>" + "</tr>" + "</table>" + "<br>" + "<br>" + "<br>" + "</center>" + "</body>" + "</html>");
		separateAndSend(html.toString(), activeChar);
	}
	
	private static class SingletonHolder
	{
		protected static final TopicBBSManager _instance = new TopicBBSManager();
	}
}