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package Torello.HTML.NodeSearch.searchLoops.InnerTags;

import java.util.Vector;
import java.util.function.Predicate;
import java.util.stream.IntStream;

import Torello.HTML.*;
import Torello.Java.LV;

public class ITFind
{
    // ********************************************************************************************
    // ********************************************************************************************
    // MAIN FIND METHODS
    // ********************************************************************************************
    // ********************************************************************************************


    public static int NTH(
            Vector<? extends HTMLNode> html, int nth, LV l, String htmlTag, String innerTag,
            Predicate<String> compare
        )
    {
        TagNode tn;
        String  itv;

        for (int i=l.start; i < l.end; i++)

            if (
                    ((tn = html.elementAt(i).openTagPWA()) != null)
                &&  ((htmlTag == null) || htmlTag.equals(tn.tok))
                &&  ((itv = tn.AVOPT(innerTag)) != null)
                &&  compare.test(itv)
                &&  (--nth == 0)
            )
                return i;

        return -1;
    }

    public static int NTHFE(
            Vector<? extends HTMLNode> html, int nth, LV l, String htmlTag, String innerTag,
            Predicate<String> compare
        )
    {
        TagNode tn;
        String  itv;

        for (int i=l.end-1; i >= l.start; i--)

            if (
                    ((tn = html.elementAt(i).openTagPWA()) != null)
                &&  ((htmlTag == null) || htmlTag.equals(tn.tok))
                &&  ((itv = tn.AVOPT(innerTag)) != null)
                &&  compare.test(itv)
                &&  (--nth == 0)
            )
                return i;

        return -1;
    }

    public static int[] ALL(
            Vector<? extends HTMLNode> html, LV l, String htmlTag, String innerTag,
            Predicate<String> compare
        )
    {
        IntStream.Builder   b = IntStream.builder();
        TagNode             tn;
        String              itv;

        for (int i=l.start; i < l.end; i++)

            if (
                    ((tn = html.elementAt(i).openTagPWA()) != null)
                &&  ((htmlTag == null) || htmlTag.equals(tn.tok))
                &&  ((itv = tn.AVOPT(innerTag)) != null)
                &&  compare.test(itv)
            )
                b.accept(i);

        return b.build().toArray();
    }


    // ********************************************************************************************
    // ********************************************************************************************
    // MAIN FIND METHODS, #2 Predicate<TagNode>
    // ********************************************************************************************
    // ********************************************************************************************


    public static int NTH
        (Vector<? extends HTMLNode> html, int nth, LV l, Predicate<TagNode> p, String... htmlTags)
    {
        TagNode tn;

        for (int i=l.start; i < l.end; i++)

            if (
                    ((tn = html.elementAt(i).openTag()) != null)
                &&  ((htmlTags.length == 0) || tn.isTag(htmlTags))
                &&  p.test(tn)
                &&  (--nth == 0)
             )
                return i;

        return -1;
    }

    public static int NTHFE
        (Vector<? extends HTMLNode> html, int nth, LV l, Predicate<TagNode> p, String... htmlTags)
    {
        TagNode tn;

        for (int i=l.end-1; i >= l.start; i--)

            if (
                    ((tn = html.elementAt(i).openTag()) != null)
                &&  ((htmlTags.length == 0) || tn.isTag(htmlTags))
                &&  p.test(tn)
                &&  (--nth == 0)
            )
                return i;

        return -1;
    }

    public static int[] ALL
        (Vector<? extends HTMLNode> html, LV l, Predicate<TagNode> p, String... htmlTags)
    {
        IntStream.Builder   b = IntStream.builder();
        TagNode             tn;

        for (int i=l.start; i < l.end; i++)

            if (
                    ((tn = html.elementAt(i).openTag()) != null)
                &&  ((htmlTags.length == 0) || tn.isTag(htmlTags))
                &&  p.test(tn)
            )
                b.accept(i);

        return b.build().toArray();
    }
}