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package tool.sieves;

import java.util.ArrayList;
import java.util.List;
import tool.MultiPassSieveNormalizer;
import tool.util.Concept;
import tool.util.Ling;
import tool.util.Util;

/**
 *
 * @author
 */
public class SimpleNameSieve extends Sieve {
    
    public static String apply(Concept concept) {
        List<String> namesForTransformation = getNamesForTransformation(concept);
        List<String> namesKnowledgeBase = transformName(namesForTransformation);
        String cui = Sieve.normalize(namesKnowledgeBase);
        return cui.equals("") ? SimpleNameSieve.normalize(concept.getName()) : cui;
    }     
    
    public static List<String> getNamesForTransformation(Concept concept) {
        List<String> namesForTransformation = new ArrayList<>();
        namesForTransformation.add(concept.getName());
        if (!concept.getNameExpansion().equals(""))
            namesForTransformation.add(concept.getNameExpansion());
        return namesForTransformation;
    }    
    
    private static List<String> transformName(List<String> namesForTransformation) {
        List<String> transformedNames = new ArrayList<>();  
        
        for (String nameForTransformation : namesForTransformation) {
            transformedNames = Util.addUnique(transformedNames, deletePhrasalModifier(nameForTransformation, nameForTransformation.split("\\s")));
        }

        return transformedNames;
    }
    
    public static List<String> deletePhrasalModifier(String phrase, String[] phraseTokens) {
        List<String> newPhrases = new ArrayList<>();
        if (phraseTokens.length > 3) {
            String newPhrase = Ling.getSubstring(phraseTokens, 0, phraseTokens.length-2)+" "+phraseTokens[phraseTokens.length-1];
            newPhrases = Util.setList(newPhrases, newPhrase);
            newPhrase = Ling.getSubstring(phraseTokens, 1, phraseTokens.length);
            newPhrases = Util.setList(newPhrases, newPhrase);    
        }
        return newPhrases;
    }    
    
    public static List<String> getTerminologySimpleNames(String[] phraseTokens) {
        List<String> newPhrases = new ArrayList<>();
        if (phraseTokens.length == 3) {
            String newPhrase = phraseTokens[0]+" "+phraseTokens[2];
            newPhrases = Util.setList(newPhrases, newPhrase);
            newPhrase = phraseTokens[1]+" "+phraseTokens[2];
            newPhrases = Util.setList(newPhrases, newPhrase);
        }
        return newPhrases;
    }
    
    public static String normalize(String name) {
        return Sieve.getTerminologyNameCui(Sieve.getTrainingDataTerminology().getSimpleNameToCuiListMap(), name);
    }
    
}