/*
 * Copyright 2012-2021 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.boot.r2dbc.init;

import java.util.UUID;

import io.r2dbc.spi.ConnectionFactory;

import org.springframework.boot.r2dbc.ConnectionFactoryBuilder;
import org.springframework.boot.sql.init.AbstractScriptDatabaseInitializerTests;
import org.springframework.boot.sql.init.DatabaseInitializationSettings;
import org.springframework.boot.testsupport.BuildOutput;
import org.springframework.r2dbc.core.DatabaseClient;

/**
 * Tests for {@link R2dbcScriptDatabaseInitializer}.
 *
 * @author Andy Wilkinson
 */
class R2dbcScriptDatabaseInitializerTests
		extends AbstractScriptDatabaseInitializerTests<R2dbcScriptDatabaseInitializer> {

	private final ConnectionFactory embeddedConnectionFactory = ConnectionFactoryBuilder
			.withUrl("r2dbc:h2:mem:///" + UUID.randomUUID() + "?options=DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE")
			.build();

	private final ConnectionFactory standaloneConnectionFactory = ConnectionFactoryBuilder.withUrl("r2dbc:h2:file:///"
			+ new BuildOutput(R2dbcScriptDatabaseInitializerTests.class).getRootLocation().toURI().getPath()
			+ UUID.randomUUID() + "?options=DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE").build();

	@Override
	protected R2dbcScriptDatabaseInitializer createEmbeddedDatabaseInitializer(
			DatabaseInitializationSettings settings) {
		return new R2dbcScriptDatabaseInitializer(this.embeddedConnectionFactory, settings);
	}

	@Override
	protected R2dbcScriptDatabaseInitializer createStandaloneDatabaseInitializer(
			DatabaseInitializationSettings settings) {
		return new R2dbcScriptDatabaseInitializer(this.standaloneConnectionFactory, settings);
	}

	@Override
	protected int numberOfEmbeddedRows(String sql) {
		return numberOfRows(this.embeddedConnectionFactory, sql);
	}

	@Override
	protected int numberOfStandaloneRows(String sql) {
		return numberOfRows(this.standaloneConnectionFactory, sql);
	}

	private int numberOfRows(ConnectionFactory connectionFactory, String sql) {
		return DatabaseClient.create(connectionFactory).sql(sql).map((row, metadata) -> row.get(0)).first()
				.map((number) -> ((Number) number).intValue()).block();
	}

	@Override
	protected void assertDatabaseAccessed(boolean accessed, R2dbcScriptDatabaseInitializer initializer) {
		// No-op as R2DBC does not need to access the database to determine its type
	}

}
