/*
 * Copyright (c) 2006-2009 Chris Smith, Shane Mc Cormack, Gregory Holmes
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.dmdirc.parser.irc;

import com.dmdirc.parser.interfaces.ChannelClientInfo;
import com.dmdirc.parser.interfaces.ChannelInfo;
import java.util.HashMap;
import java.util.Map;

/**
 * Contains information about a client on a channel.
 * 
 * @author Shane Mc Cormack
 * @author Chris Smith
 * @see IRCParser
 */
public class IRCChannelClientInfo implements ChannelClientInfo {
    
    /** Reference to ClientInfo object this represents. */
    private final IRCClientInfo cClient;
    /** Integer representation of the channel modes assocated with this user. */
    private long nModes;
    /** Reference to the parser object that owns this channelclient, Used for modes. */
    private final IRCParser myParser;
    /** Reference to the channel object that owns this channelclient. */
    private final ChannelInfo myChannel;
    /** A Map to allow applications to attach misc data to this object */
    private Map<Object, Object> myMap;
    
    /**
     * Create a ChannelClient instance of a CLient.
     *
     * @param tParser Refernce to parser that owns this channelclient (used for modes)
     * @param client Client that this channelclient represents
     * @param channel Channel that owns this channelclient
     */    
    public IRCChannelClientInfo(final IRCParser tParser, final IRCClientInfo client, final ChannelInfo channel) {
        myMap = new HashMap<Object, Object>();
        myParser = tParser;
        cClient = client;
        myChannel = channel;
        cClient.addChannelClientInfo(this);
    }
    
    /**
     * Set the Map object attatched to this object.
     *
     * @param newMap New Map to attatch.
     * @see #getMap
     */
    public void setMap(final Map<Object, Object> newMap) {
        myMap = newMap;
    }
    
    /** {@inheritDoc} */
        @Override
    public Map<Object, Object> getMap() { return myMap; }
    
    /** {@inheritDoc} */
        @Override
    public IRCClientInfo getClient() { return cClient; }

    /** {@inheritDoc} */
        @Override
    public ChannelInfo getChannel() { return myChannel; }
    /**
     * Get the nickname of the client object represented by this channelclient.
     *
     * @return Nickname of the Client object represented by this channelclient
     */    
    public String getNickname() { return cClient.getNickname(); }    
    
    /**
     * Set the modes this client has (Prefix modes).
     *
     * @param nNewMode integer representing the modes this client has.
     */
    public void setChanMode(final long nNewMode) { nModes = nNewMode; }
    /**
     * Get the modes this client has (Prefix modes).
     *
     * @return integer representing the modes this client has.
     */
    public long getChanMode() { return nModes; }
    
    /**
     * Get the modes this client has (Prefix modes) as a string.
     * Returns all known modes that the client has.
     * getChanModeStr(false).charAt(0) can be used to get the highest mode (o)
     * getChanModeStr(true).charAt(0) can be used to get the highest prefix (@)
     *
     * @param bPrefix if this is true, prefixes will be returned (@+) not modes (ov)
     * @return String representing the modes this client has.
     */
    public String getChanModeStr(final boolean bPrefix) {
        StringBuilder sModes = new StringBuilder();
        long nTemp = 0;
        final long nCurrentModes = this.getChanMode();

        for (long i = myParser.nextKeyPrefix; i > 0; i = i / 2) {
            if ((nCurrentModes & i) == i) {
                for (char cTemp : myParser.prefixModes.keySet()) {
                    nTemp = myParser.prefixModes.get(cTemp);
                    if (nTemp == i) {
                        if (bPrefix) { cTemp = myParser.prefixMap.get(cTemp); }
                        sModes = sModes.append(cTemp);
                        break;
                    }
                }
            }
        }
        
        return sModes.toString();
    }

    /** {@inheritDoc} */
    @Override
    public String getAllModes() {
        return getChanModeStr(false);
    }

    /**
     * Get the value of the most important mode this client has (Prefix modes).
     * A higher value, is a more important mode, 0 = no modes.
     *
     * @return integer representing the value of the most important mode.
     */
    public long getImportantModeValue() {
        for (long i = myParser.nextKeyPrefix; i > 0; i = i / 2) {
            if ((nModes & i) == i) { return i; }
        }
        return 0;
    }
    
    /** {@inheritDoc} */
        @Override
    public String getImportantMode() {
        String sModes = this.getChanModeStr(false);
        if (!sModes.isEmpty()) { sModes = "" + sModes.charAt(0); }
        return sModes;
    }
    
    /** {@inheritDoc} */
        @Override
    public String getImportantModePrefix() {
        String sModes = this.getChanModeStr(true);
        if (!sModes.isEmpty()) { sModes = "" + sModes.charAt(0); }
        return sModes;
    }
    

    /**
     * Get the String Value of ChannelClientInfo (ie @Nickname).
     *
     * @return String Value of user (inc prefix) (ie @Nickname)
     */
    @Override
    public String toString() { 
        return this.getImportantModePrefix() + this.getNickname();
    }    
    
    /** {@inheritDoc} */
        @Override
    public void kick(final String sReason) {
        myParser.sendString("KICK " + myChannel + " " + this.getNickname() + (sReason.isEmpty() ? sReason : " :" + sReason));
    }
    
    /**
     * Get the "Complete" String Value of ChannelClientInfo (ie @+Nickname).
     *
     * @return String Value of user (inc prefix) (ie @+Nickname)
     */
    public String toFullString() { return this.getChanModeStr(true) + this.getNickname(); }

        /** {@inheritDoc} */
        @Override
        public int compareTo(final ChannelClientInfo arg0) {
            if (arg0 instanceof IRCChannelClientInfo) {
                final IRCChannelClientInfo other = (IRCChannelClientInfo) arg0;
                return (int) (getImportantModeValue() - other.getImportantModeValue());
            }

            return 0;
        }

}