/*
 * Copyright 2019-2023 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.data.r2dbc.dialect;

import org.springframework.data.relational.core.dialect.ArrayColumns;
import org.springframework.data.relational.core.dialect.ObjectArrayColumns;
import org.springframework.data.relational.core.sql.SqlIdentifier;
import org.springframework.data.util.Lazy;
import org.springframework.r2dbc.core.binding.BindMarkersFactory;

/**
 * R2DBC dialect for H2.
 *
 * @author Mark Paluch
 * @author Jens Schauder
 * @author Diego Krupitza
 * @author Kurt Niemi
 */
public class H2Dialect extends org.springframework.data.relational.core.dialect.H2Dialect implements R2dbcDialect {

	/**
	 * Singleton instance.
	 */
	public static final H2Dialect INSTANCE = new H2Dialect();

	private static final BindMarkersFactory INDEXED = BindMarkersFactory.indexed("$", 1);

	private final Lazy<ArrayColumns> arrayColumns = Lazy
			.of(() -> new SimpleTypeArrayColumns(ObjectArrayColumns.INSTANCE, getSimpleTypeHolder()));

	@Override
	public BindMarkersFactory getBindMarkersFactory() {
		return INDEXED;
	}

	@Override
	public String renderForGeneratedValues(SqlIdentifier identifier) {
		return identifier.getReference();
	}

	@Override
	public ArrayColumns getArraySupport() {
		return this.arrayColumns.get();
	}
}
