package jp.ac.u_ryukyu.ie.cr.shoshi.jungle;

import fj.data.HashMap;
import fj.data.TreeMap;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListWriter;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditor;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.AtomicReservableReference;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultJungleTreeEditor;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTransactionManager;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.TreeContext;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser.InterfaceTraverser;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Pair;


public class DefaultJungleTree implements JungleTree
{
	private final AtomicReservableReference<TreeContext> repository;
	private final String uuid;
	private final ChangeListWriter writer;
	private final TreeEditor editor;
	Pair<TreeMap<String,TreeNode>,TreeMap<String,String>> index;
	
	public DefaultJungleTree(TreeContext _tc,String _uuid,ChangeListWriter _writer,TreeEditor _editor, Pair<TreeMap<String,TreeNode>,TreeMap<String,String>> index)
	{
		this.repository = new AtomicReservableReference<TreeContext>(_tc);
		this.uuid = _uuid;
		this.writer = _writer;
		this.editor = _editor;
		this.index = index;
	}

	@Override
	public JungleTreeEditor getTreeEditor()
	{
		TreeContext tc = repository.get();
		DefaultTransactionManager txManager = new DefaultTransactionManager(writer,tc,repository,uuid);
		TreeNode root = tc.getTreeNode();
		return new DefaultJungleTreeEditor(root,txManager,editor);
	}

	@Override
	public JungleTreeEditor getLocalTreeEditor()
	{
		return getTreeEditor();
	}
	
	@Override
	public TreeNode getRootNode()
	{
		TreeContext tc = repository.get();
		ChangeSet cs = tc.getChangeSet();
		return cs.getRoot();
	}

	@Override
	public InterfaceTraverser getTraverser() {
		return new InterfaceTraverser(getRootNode(), index, getTreeEditor());
	}
	
	@Override
	public Pair<TreeMap<String,TreeNode>,TreeMap<String,String>> getIndex() {
		return index;
	}
}