/*
 * [Marker.java]
 *
 * Summary: Interface for search by string or regex.
 *
 * Copyright: (c) 2014-2017 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 2014-10-28 initial version
 */
package com.mindprod.stores;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Interface for search by string or regex.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 1.0 2014-10-28 initial version
 * @since 2012-03-01
 */
abstract class Marker
    {
    String product;

    /**
     * is this marker contained in big?
     * true if marker is contained in big
     */
    abstract boolean contained( String big );

    /**
     * get the raw marker
     *
     * @return string search for as string
     */
    abstract String getRawMarker();

    /**
     * where is this marker contained in Big? -1 if nowhere
     *
     * @return int offset
     */
    abstract int indexAt( String big );

    /**
     * set the product number, usually isbn13
     *
     * @param product
     */
    void setProduct( final String product )
        {
        this.product = product;
        }
    }

class MarkerString extends Marker
    {
    private final String marker;

    /**
     * constructor
     */
    MarkerString( String marker )
        {
        this.marker = marker;
        }

    /**
     * is this marker contained in Big?
     */
    public boolean contained( String big )
        {
        return big.contains( marker );
        }

    public String getRawMarker()
        {
        return marker;
        }

    /**
     * where is this marker contained in Big? -1 if nowhere
     */
    public int indexAt( String big )
        {
        return big.indexOf( marker );
        }

    public String toString()
        {
        return marker;
        }
    }

class MarkerProduct extends Marker
    {
    // must also match embedded ISBN
    private final String marker;

    /**
     * constructor
     */
    MarkerProduct( String marker )
        {
        this.marker = marker;
        }

    /**
     * is this marker contained in Big?
     */
    public boolean contained( final String big )
        {
        // replace all xxx
        final String seek = marker.replace( "xxx", this.product );
        return big.contains( seek );
        }

    public String getRawMarker()
        {
        return marker;
        }

    /**
     * where is this marker contained in Big? -1 if nowhere
     */
    public int indexAt( final String big )
        {
        // replace all xxx
        final String seek = marker.replace( "xxx", product );
        return big.indexOf( seek );
        }

    public String toString()
        {
        return marker;
        }
    }

class MarkerRegex extends Marker
    {
    /**
     * store cooked Pattern as well as raw Marker
     */
    private final Pattern pattern;

    /**
     * constructor
     */
    MarkerRegex( Pattern pattern )
        {
        this.pattern = pattern;
        }

    /**
     * is this marker contained in Big?
     */
    public boolean contained( String big )
        {
        final Matcher m = pattern.matcher( big );
        return m.find();
        }

    public String getRawMarker()
        {
        return pattern.toString();
        }

    /**
     * where is this marker contained in Big? -1 if nowhere
     */
    public int indexAt( String big )
        {
        final Matcher m = pattern.matcher( big );
        return m.find()
               ? m.start()
               : -1;
        }

    public String toString()
        {
        return "regex:" + pattern.toString();
        }
    }