/*
 * Copyright 2024-2025 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.ai.model.chat.memory.repository.jdbc.autoconfigure;

import java.util.List;

import javax.sql.DataSource;

import org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer;
import org.springframework.boot.jdbc.init.PlatformPlaceholderDatabaseDriverResolver;
import org.springframework.boot.sql.init.DatabaseInitializationSettings;
import org.springframework.util.StringUtils;

/**
 * Performs database initialization for the JDBC Chat Memory Repository.
 *
 * @author Mark Pollack
 * @author Yanming Zhou
 * @since 1.0.0
 */
class JdbcChatMemoryRepositorySchemaInitializer extends DataSourceScriptDatabaseInitializer {

	JdbcChatMemoryRepositorySchemaInitializer(DataSource dataSource, JdbcChatMemoryRepositoryProperties properties) {
		super(dataSource, getSettings(dataSource, properties));
	}

	static DatabaseInitializationSettings getSettings(DataSource dataSource,
			JdbcChatMemoryRepositoryProperties properties) {
		var settings = new DatabaseInitializationSettings();
		settings.setSchemaLocations(resolveSchemaLocations(dataSource, properties));
		settings.setMode(properties.getInitializeSchema());
		settings.setContinueOnError(true);
		return settings;
	}

	private static List<String> resolveSchemaLocations(DataSource dataSource,
			JdbcChatMemoryRepositoryProperties properties) {
		PlatformPlaceholderDatabaseDriverResolver platformResolver = new PlatformPlaceholderDatabaseDriverResolver();
		if (StringUtils.hasText(properties.getPlatform())) {
			return platformResolver.resolveAll(properties.getPlatform(), properties.getSchema());
		}
		return platformResolver.resolveAll(dataSource, properties.getSchema());
	}

}
