/*-
    * #%L
    * io.earcam.utilitarian.site.search.offline
    * %%
    * Copyright (C) 2017 earcam
    * %%
    * SPDX-License-Identifier: (BSD-3-Clause OR EPL-1.0 OR Apache-2.0 OR MIT)
    *
    * You <b>must</b> choose to accept, in full - any individual or combination of
   * the following licenses:
   * <ul>
   * 	<li><a href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause</a></li>
   * 	<li><a href="https://www.eclipse.org/legal/epl-v10.html">EPL-1.0</a></li>
   * 	<li><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache-2.0</a></li>
   * 	<li><a href="https://opensource.org/licenses/MIT">MIT</a></li>
   * </ul>
   * #L%
   */
  package io.earcam.utilitarian.site.search.offline;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  
  import java.net.URI;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.util.HashMap;
  import java.util.Map;
  
  import io.earcam.unexceptional.Exceptional;
  import io.earcam.utilitarian.site.search.offline.ConfigurationModel.Crawling;
  import io.earcam.utilitarian.site.search.offline.ConfigurationModel.Indexing;
  import io.earcam.utilitarian.site.search.offline.jsonb.JsonBind;
  
  public class Search {
  
  	public static void main(String[] args)
  	{
  		System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "trace");
  		if(args.length < 2) {
  			throw new IllegalArgumentException("Expected first arg to be json-output-dir, then at least a further argument of the form 'baseDir@baseUri'");
  		}
  
  		final String jsonDir = args[0];
  		Indexer indexer = null;
  		for(int i = 1; i < args.length; i++) {
  			int index = args[i].indexOf('@');
  			if(index == -1) {
  				throw new IllegalArgumentException("Only arguments expected are 'baseDir@baseUri', recieved '" + args[i] + "' at index " + i);
  			}
  			Path baseDir = Paths.get(args[i].substring(0, index));
  			URI baseUri = Exceptional.uri(args[i].substring(index + 1));
  			Map<String, String> searchReplace = searchReplaceMap(jsonDir, baseDir, baseUri);
  
  			String crawlerJson = Resources.getResource(Resources.DEFAULT_CRAWLER_JSON, UTF_8, searchReplace);
  			Crawling crawler = JsonBind.readJson(crawlerJson, Crawling.class);
  
  			if(indexer == null) {
  				String indexerJson = Resources.getResource(Resources.DEFAULT_INDEXER_JSON, UTF_8, searchReplace);
  				indexer = JsonBind.readJson(indexerJson, Indexing.class).build();
  			}
  			indexer.add(crawler.build().documents());
  		}
  		// @SuppressWarnings("squid:S2259")
  		indexer.writeJson();  // NOSONAR false positive
  	}
  
  
  	private static Map<String, String> searchReplaceMap(String jsonDir, Path baseDir, URI baseUri)
  	{
  		Map<String, String> searchReplace = new HashMap<>();
  		searchReplace.put("${outputCharset}", UTF_8.name());
  		searchReplace.put("${jsonDir}", jsonDir);
  		searchReplace.put("${baseDir}", baseDir.toAbsolutePath().toString());
  		searchReplace.put("${baseUri}", baseUri.toString());
  		return searchReplace;
  	}
  }