package alice.jungle.persistence;

import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.JungleTree;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.JungleTreeEditor;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Node;
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.TreeContext;

public class PersistentJungleTree <T extends TreeNode<T>> implements JungleTree {
	private final AtomicReservableReference<TreeContext<T>> repository;
	private final String uuid;
	private final String treeName;
	private final ChangeListWriter writer;
	private final TreeEditor editor;

	public PersistentJungleTree(String _treeName, TreeContext<T> _tc,String _uuid, ChangeListWriter _writer,TreeEditor _editor)
	{
		treeName = _treeName;
		repository = new AtomicReservableReference<TreeContext<T>>(_tc);
		uuid = _uuid;
		writer = _writer;
		editor = _editor;
	}

	@Override
	public JungleTreeEditor getTreeEditor()
	{
		TreeContext<T> tc = repository.get();
		PersistentTransactionManager<T> txManager = new PersistentTransactionManager<T>(treeName, writer,tc,repository,uuid);
		T root = tc.getTreeNode();
		return new DefaultJungleTreeEditor<T>(root,txManager,editor);
	}

	@Override
	public Node getRootNode()
	{
		TreeContext<T> tc = repository.get();
		ChangeSet cs = tc.getChangeSet();
		return cs.getRoot();
	}

	@Override
	public JungleTreeEditor getLocalTreeEditor() {
		return getTreeEditor();
	}


}