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/* LanguageTool, a natural language style checker 
 * Copyright (C) 2005 Daniel Naber (http://www.danielnaber.de)
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
 * USA
 */
package org.languagetool.rules.uk;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.LinkedHashSet;
import java.util.ResourceBundle;
import java.util.regex.Pattern;

import org.languagetool.JLanguageTool;
import org.languagetool.AnalyzedSentence;
import org.languagetool.AnalyzedToken;
import org.languagetool.AnalyzedTokenReadings;
import org.languagetool.rules.Rule;
import org.languagetool.rules.RuleMatch;
import org.languagetool.rules.ITSIssueType;
import org.languagetool.tagging.uk.PosTagHelper;

/**
 * A rule that matches proper names that has been renamed
 * Loads the relevant words from rules/uk/replace_renamed.txt.
 * 
 * @author Andriy Rysin
 */
public class SimpleReplaceRenamedRule extends Rule {

  private static final Map> RENAMED_LIST = ExtraDictionaryLoader.loadLists("/uk/replace_renamed.txt");
  private static final Pattern GEO_POSTAG_PATTERN = Pattern.compile("noun:inanim.*?:prop.*|adj.*");

  public SimpleReplaceRenamedRule(ResourceBundle messages) {
    super(messages);
    setLocQualityIssueType(ITSIssueType.Style);
  }

  @Override
  public final String getId() {
    return "UK_SIMPLE_REPLACE_RENAMED";
  }

  @Override
  public String getDescription() {
    return "Пропозиція поточної назви для перейменованих власних назв";
  }

  @Override
  public final RuleMatch[] match(AnalyzedSentence sentence) {
    List ruleMatches = new ArrayList<>();
    AnalyzedTokenReadings[] tokens = sentence.getTokensWithoutWhitespace();

    for (AnalyzedTokenReadings tokenReadings: tokens) {

      LinkedHashSet renamedLemmas = new LinkedHashSet<>();
      for(AnalyzedToken reading: tokenReadings.getReadings()) {
        String lemma = reading.getLemma();
        
        if( JLanguageTool.SENTENCE_END_TAGNAME.equals(reading.getPOSTag()) )
          continue;


        if( lemma != null ) {
          if( RENAMED_LIST.containsKey(lemma)
              && PosTagHelper.hasPosTag(reading, GEO_POSTAG_PATTERN) ) {
            renamedLemmas.add(lemma);
          }
          else {
            // overlaps with normal lemma
            renamedLemmas.clear();
            break;
          }
        }
      }

      if( renamedLemmas.size() > 0 ) {
        String info = "";
        List replacements = new ArrayList<>();
        for(String lemma: renamedLemmas) {
          List repl = RENAMED_LIST.get(lemma);
          replacements.add(repl.get(0));
          
          for(int i=1; i 1 ) {
            info = repl.get(repl.size()-1);
          }
        }

        RuleMatch match = createRuleMatch(tokenReadings, replacements, getMessage(renamedLemmas.iterator().next(), info), sentence);
        ruleMatches.add(match);
      }

    }
    return ruleMatches.toArray(new RuleMatch[0]);
  }


  private String getMessage(String tokenStr, String info) {
    String msg = "«" + tokenStr + "» було перейменовано";
    if( ! info.isEmpty() ) {
      msg += " (" + info + ")";
    }
    return msg;
  }

  private RuleMatch createRuleMatch(AnalyzedTokenReadings readings, List replacements, String msg, AnalyzedSentence sentence) {
    RuleMatch potentialRuleMatch = new RuleMatch(this, sentence, readings.getStartPos(), readings.getEndPos(), msg, "Перейменована назва");
    potentialRuleMatch.setSuggestedReplacements(replacements);

    return potentialRuleMatch;
  }

}