/*
 * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.controller.cluster.datastore.node.utils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.impl.codec.TypeDefinitionAwareCodec;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;

public class NodeIdentifierWithValueGenerator {
    private static final Pattern PATTERN = Pattern.compile("(.*)\\Q[\\E(.*)\\Q]\\E");

    private final String id;
    private final DataSchemaNode schemaNode;
    private final Matcher matcher;
    private final boolean doesMatch;

    public NodeIdentifierWithValueGenerator(String id, DataSchemaNode schemaNode) {
        this.id = id;
        this.schemaNode = schemaNode;
        matcher = PATTERN.matcher(this.id);
        doesMatch = matcher.matches();
    }

    public boolean matches() {
        return doesMatch;
    }

    public YangInstanceIdentifier.PathArgument getPathArgument() {
        final String name = matcher.group(1);
        final String value = matcher.group(2);

        return new YangInstanceIdentifier.NodeWithValue<>(QNameFactory.create(name), getValue(value));
    }

    private Object getValue(String value) {
        if (schemaNode != null) {
            if (schemaNode instanceof LeafListSchemaNode) {
                return TypeDefinitionAwareCodec.from(LeafListSchemaNode.class.cast(schemaNode).getType())
                        .deserialize(value);

            }
        }
        return value;
    }

}