content: /*
   * Copyright 2012-2022 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 io.spring.start.site.extension.dependency.springdata;
  
  import java.util.Arrays;
  import java.util.List;
  
  import io.spring.initializr.generator.buildsystem.Build;
  import io.spring.initializr.generator.spring.documentation.HelpDocument;
  import io.spring.initializr.generator.spring.documentation.HelpDocumentCustomizer;
  
  /**
   * A {@link HelpDocumentCustomizer} that adds a section when R2DBC is selected but no
   * driver was selected.
   *
   * @author Stephane Nicoll
   */
  public class R2dbcHelpDocumentCustomizer implements HelpDocumentCustomizer {
  
  	private static final List<String> DRIVERS = Arrays.asList("h2", "mariadb", "postgresql", "sqlserver");
  
  	private final Build build;
  
  	public R2dbcHelpDocumentCustomizer(Build build) {
  		this.build = build;
  	}
  
  	@Override
  	public void customize(HelpDocument document) {
  		if (this.build.dependencies().ids().noneMatch(DRIVERS::contains)) {
  			document.addSection((writer) -> {
  				writer.println("## Missing R2DBC Driver");
  				writer.println();
  				writer.println(
  						"Make sure to include a [R2DBC Driver](https://r2dbc.io/drivers/) to connect to your database.");
  			});
  		}
  	}
  
  }
  