/*
 *  The Mana World
 *  Copyright 2004 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World 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 2 of the License, or
 *  any later version.
 *
 *  The Mana World 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 The Mana World; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _TMW_CHAT_H
#define _TMW_CHAT_H

#include <list>
#include <string>
#include <map>

#include <guichan/actionlistener.hpp>
#include <guichan/keylistener.hpp>

#include "window.h"

#include "../guichanfwd.h"

class BrowserBox;
class ScrollArea;
class TabbedArea;
class Channel;
class ItemLinkHandler;

enum
{
    BY_GM     = 0,
    BY_PLAYER = 1,
    BY_OTHER  = 2,
    BY_SERVER = 3,
    BY_CHANNEL = 4,
    BY_LOGGER
};

/**
 * The chat window.
 *
 * \ingroup Interface
 */
class ChatWindow : public Window,
                   public gcn::ActionListener,
                   public gcn::KeyListener
{
    public:
        /**
         * Constructor.
         */
        ChatWindow();

        /**
         *
         */
        ~ChatWindow();

        /**
         * Called when the widget changes size. Used for adapting the size of
         * the tabbed area.
         */
        void widgetResized(const gcn::Event &event);

        /**
         * Gets the focused tab's name
         */
        const std::string& getFocused() const;

        /**
         * Clear the tab with the given name
         */
        void clearTab(const std::string &tab);

        /**
         * Adds a line of text to our message list. Parameters:
         *
         * @param line Text message.
         * @param own  Type of message (usually the owner-type).
         * @param channelName which channel to send the message to.
         */
        void chatLog(std::string line,
                     int own = BY_SERVER,
                     std::string channelName = "");

        /**
         * Performs action.
         */
        void action(const gcn::ActionEvent &event);

        /**
         * Request focus for typing chat message.
         */
        void requestChatFocus();

        /**
         * Checks whether ChatWindow is Focused or not.
         */
        bool isInputFocused();

        /**
         * Determines whether the message is a command or message, then
         * sends the given message to the game server to be said, or to the
         * command handler
         *
         * @param msg  The message text which is to be sent.
         *
         */
        void chatSend(std::string &msg);

        /** Called to remove the channel from the channel manager */
        void removeChannel(short channelId);

        void removeChannel(const std::string &channelName);

        void removeChannel(Channel *channel);

        /** Called to create a new channel tab */
        void createNewChannelTab(const std::string &channelName);

        /** Called to output text to a specific channel */
        void sendToChannel(short channel,
                           const std::string &user,
                           const std::string &msg);

        /** Called when key is pressed */
        void keyPressed(gcn::KeyEvent &event);

        /** Called to set current text */
        void setInputText(std::string input_str);

        /** Called to add item to chat */
        void addItemText(int itemid, const std::string &item);

        /** Override to reset mTmpVisible */
        void setVisible(bool visible);

        /** Check if tab with that name already exists */
        bool tabExists(const std::string &tabName);

        void logic();

    private:
        bool mTmpVisible;

        int mItems;
        int mItemsKeep;

        struct CHATLOG
        {
            std::string nick;
            std::string text;
            int own;
        };

        /**
         * A structure combining a BrowserBox with its ScrollArea.
         */
        struct ChatArea
        {
            ChatArea(BrowserBox *b, ScrollArea *s):
                browser(b), scroll(s)
            {}

            BrowserBox *browser;
            ScrollArea *scroll;
        };

        /** Used for showing item popup on clicking links **/
        ItemLinkHandler *mItemLinkHandler;

        /** Tabbed area for holding each channel. */
        TabbedArea *mChatTabs;

        /** Input box for typing chat messages. */
        gcn::TextField *mChatInput;

        typedef std::map<const std::string, ChatArea> ChannelMap;
        /** Map each tab to its browser and scroll area. */
        ChannelMap mChannels;

        typedef std::list<std::string> History;
        typedef History::iterator HistoryIterator;
        History mHistory;           /**< Command history. */
        HistoryIterator mCurHist;   /**< History iterator. */
};

extern ChatWindow *chatWindow;

#endif