/*
 * Copyright (c) 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.yangtools.yang.parser.stmt.rfc6020;

import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.DeviationStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.DeviationEffectiveStatementImpl;

public class DeviationStatementImpl extends AbstractDeclaredStatement<SchemaNodeIdentifier> implements DeviationStatement {
    private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
            .DEVIATION)
            .addOptional(YangStmtMapping.DESCRIPTION)
            .addAny(YangStmtMapping.DEVIATE)
            .addOptional(YangStmtMapping.REFERENCE)
            .build();

    protected DeviationStatementImpl(final StmtContext<SchemaNodeIdentifier, DeviationStatement, ?> context) {
        super(context);
    }

    public static class Definition extends AbstractStatementSupport<SchemaNodeIdentifier,DeviationStatement,EffectiveStatement<SchemaNodeIdentifier,DeviationStatement>> {

        public Definition() {
            super(YangStmtMapping.DEVIATION);
        }

        @Override
        public SchemaNodeIdentifier parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
            return Utils.nodeIdentifierFromPath(ctx, value);
        }

        @Override
        public DeviationStatement createDeclared(final StmtContext<SchemaNodeIdentifier, DeviationStatement, ?> ctx) {
            return new DeviationStatementImpl(ctx);
        }

        @Override
        public EffectiveStatement<SchemaNodeIdentifier, DeviationStatement> createEffective(
                final StmtContext<SchemaNodeIdentifier, DeviationStatement, EffectiveStatement<SchemaNodeIdentifier, DeviationStatement>> ctx) {
            return new DeviationEffectiveStatementImpl(ctx);
        }

        @Override
        protected SubstatementValidator getSubstatementValidator() {
            return SUBSTATEMENT_VALIDATOR;
        }
    }

    @Nonnull @Override
    public SchemaNodeIdentifier getTargetNode() {
        return argument();
    }
}