/*
 * [NoSnippetsFilter.java]
 *
 * Summary: FileFilter filters out the snippets directories.
 *
 * Copyright: (c) 2009-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 *  1.0 2009-11-09 initial version
 */
package com.mindprod.acronym;

import com.mindprod.common18.EIO;

import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Pattern;

/**
 * FileFilter filters out the snippets directories.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 1.0 2009-11-09 initial version
 * @since 2009-11-09
 */
final class NoSnippetsFilter implements FilenameFilter
    {
    /**
     * split directory name into legs separated by \ or /
     */
    private static final Pattern SPLIT_ON_SLASH = Pattern.compile( "[/\\\\]" );

    /**
     * constructor
     */
    public NoSnippetsFilter()
        {
        }

    /**
     * Select only files with that pass muster, dir but no snippet in name.
     *
     * @param dir  the directory in which the file was found.
     * @param name the name of the file
     *
     * @return true if and only if the name should be included in the file list; false otherwise.
     */
    public boolean accept( File dir, String name )
        {
        final File f = new File( dir, name );
        if ( f.isFile() || name.equals( "foot" ) || name.equals( "snippet" ) || name.equals( "image" ) || name.equals(
                "kjv" ) || name.equals( "sound" ) )
            {
            return false;
            }
        final String[] legs = SPLIT_ON_SLASH.split( EIO.getCanOrAbsPath( dir ) );
        for ( String leg : legs )
            {
            if ( leg.equals( "snippet" ) || leg.equals( "image" ) || leg.equals( "kjv" ) || leg.equals( "sound" ) )
                {
                return false;
                }
            }
        return true;
        }
    }