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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.anjocaido.groupmanager.data;

import org.anjocaido.groupmanager.GroupManager;
import org.anjocaido.groupmanager.dataholder.WorldDataHolder;
import org.anjocaido.groupmanager.events.GMGroupEvent.Action;
import org.anjocaido.groupmanager.events.GroupManagerEventHandler;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;


/**
 *
 * @author gabrielcouto/ElgarL
 */
public class Group extends DataUnit implements Cloneable
{
	/**
	 * The group it inherits DIRECTLY!
	 */
	private ArrayList<String> inherits = new ArrayList<String>();
	/**
	 * This one holds the fields in INFO node. like prefix = 'c' or build = false
	 */
	private GroupVariables variables = new GroupVariables(this);

	/**
	 * Constructor for individual World Groups.
	 *
	 * @param name
	 */
	public Group(WorldDataHolder source, String name)
	{

		super(source, name);
	}

	/**
	 * Constructor for Global Groups.
	 *
	 * @param name
	 */
	public Group(String name)
	{

		super(name);
	}

	/**
	 * Is this a GlobalGroup
	 *
	 * @return true if this is a global group
	 */
	public boolean isGlobal()
	{

		return (getDataSource() == null);
	}

	/**
	 * Clone this group
	 *
	 * @return a clone of this group
	 */
	@Override
	public Group clone()
	{

		Group clone;

		if (isGlobal())
		{
			clone = new Group(this.getName());
		}
		else
		{
			clone = new Group(getDataSource(), this.getName());
			clone.inherits = new ArrayList<String>(this.getInherits());
		}

		for (String perm : this.getPermissionList())
		{
			clone.addPermission(perm);
		}
		clone.variables = ((GroupVariables)variables).clone(clone);
		//clone.flagAsChanged();
		return clone;
	}

	/**
	 * Use this to deliver a group from a different dataSource to another
	 *
	 * @param dataSource
	 * @return Null or Clone
	 */
	public Group clone(WorldDataHolder dataSource)
	{

		if (dataSource.groupExists(this.getName()))
		{
			return null;
		}

		Group clone = dataSource.createGroup(this.getName());

		// Don't add inheritance for GlobalGroups
		if (!isGlobal())
		{
			clone.inherits = new ArrayList<String>(this.getInherits());
		}
		for (String perm : this.getPermissionList())
		{
			clone.addPermission(perm);
		}
		clone.variables = variables.clone(clone);
		clone.flagAsChanged(); //use this to make the new dataSource save the new group
		return clone;
	}

	/**
	 * an unmodifiable list of inherits list You can't manage the list by here Lol... version 0.6 had a problem because
	 * this.
	 *
	 * @return the inherits
	 */
	public List<String> getInherits()
	{

		return Collections.unmodifiableList(inherits);
	}

	/**
	 * @param inherit the inherits to set
	 */
	public void addInherits(Group inherit)
	{

		if (!isGlobal())
		{
			if (!this.getDataSource().groupExists(inherit.getName()))
			{
				getDataSource().addGroup(inherit);
			}
			if (!inherits.contains(inherit.getName().toLowerCase()))
			{
				inherits.add(inherit.getName().toLowerCase());
			}
			flagAsChanged();
			if (GroupManager.isLoaded())
			{
				GroupManager.BukkitPermissions.updateAllPlayers();
				GroupManagerEventHandler.callEvent(this, Action.GROUP_INHERITANCE_CHANGED);
			}
		}
	}

	public boolean removeInherits(String inherit)
	{

		if (!isGlobal())
		{
			if (this.inherits.contains(inherit.toLowerCase()))
			{
				this.inherits.remove(inherit.toLowerCase());
				flagAsChanged();
				GroupManagerEventHandler.callEvent(this, Action.GROUP_INHERITANCE_CHANGED);
				return true;
			}
		}
		return false;
	}

	/**
	 * @return the variables
	 */
	public GroupVariables getVariables()
	{

		return variables;
	}

	/**
	 *
	 * @param varList
	 */
	public void setVariables(Map<String, Object> varList)
	{

		if (!isGlobal())
		{
			GroupVariables temp = new GroupVariables(this, varList);
			variables.clearVars();
			for (String key : temp.getVarKeyList())
			{
				variables.addVar(key, temp.getVarObject(key));
			}
			flagAsChanged();
			if (GroupManager.isLoaded())
			{
				GroupManager.BukkitPermissions.updateAllPlayers();
				GroupManagerEventHandler.callEvent(this, Action.GROUP_INFO_CHANGED);
			}
		}
	}
}