/*
 * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.rfc7950.stmt.refine;

import com.google.common.collect.ImmutableList;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.RefineEffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.RefineStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Descendant;
import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.ArgumentUtils;
import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStatementSupport;
import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;

abstract class AbstractRefineStatementSupport
        extends BaseStatementSupport<Descendant, RefineStatement, RefineEffectiveStatement> {

    AbstractRefineStatementSupport() {
        super(YangStmtMapping.REFINE);
    }

    @Override
    public final Descendant parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
        return ArgumentUtils.parseDescendantSchemaNodeIdentifier(ctx, value);
    }

    @Override
    protected final RefineStatement createDeclared(final StmtContext<Descendant, RefineStatement, ?> ctx,
            final ImmutableList<? extends DeclaredStatement<?>> substatements) {
        return new RefineStatementImpl(ctx, substatements);
    }

    @Override
    protected final RefineStatement createEmptyDeclared(final StmtContext<Descendant, RefineStatement, ?> ctx) {
        // Empty refine is exceedingly unlikely: let's be lazy and reuse the implementation
        return new RefineStatementImpl(ctx, ImmutableList.of());
    }

    @Override
    protected final RefineEffectiveStatement createEffective(
            final StmtContext<Descendant, RefineStatement, RefineEffectiveStatement> ctx,
            final RefineStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
        return new RefineEffectiveStatementImpl(declared, substatements, ctx.getSchemaPath().get(),
            (SchemaNode) ctx.getEffectOfStatement().iterator().next().buildEffective());
    }

    @Override
    protected final RefineEffectiveStatement createEmptyEffective(
            final StmtContext<Descendant, RefineStatement, RefineEffectiveStatement> ctx,
            final RefineStatement declared) {
        // Empty refine is exceedingly unlikely: let's be lazy and reuse the implementation
        return createEffective(ctx, declared, ImmutableList.of());
    }
}