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package Torello.HTML.NodeSearch.SearchLoops.InnerTagsInclusive;

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

import Torello.HTML.*;

import Torello.HTML.NodeSearch.InclusiveException;
import Torello.Java.LV;

public class ITPeekIncl
{
    // ********************************************************************************************
    // ********************************************************************************************
    // MAIN PEEK METHODS
    // ********************************************************************************************
    // ********************************************************************************************


    public static SubSection NTH(
            Vector<? extends HTMLNode> html, int nth, LV l, String htmlTag, String innerTag,
            Predicate<String> compare
        )
    {
        InclusiveException.check(htmlTag);

        SubSection  ret;
        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)
                &&  ((ret = Util.Inclusive.subSectionOPT(html, i, l.end)) != null)
                &&  (--nth == 0)
            )
                return ret;

        return null;
    }

    public static SubSection NTHFE(
            Vector<? extends HTMLNode> html, int nth, LV l, String htmlTag, String innerTag,
            Predicate<String> compare
        )
    {
        InclusiveException.check(htmlTag);

        SubSection  ret;
        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)
                &&  ((ret = Util.Inclusive.subSectionOPT(html, i, l.end)) != null)
                &&  (--nth == 0)
            )
                return ret;

        return null;
    }

    public static Vector<SubSection> ALL(
            Vector<? extends HTMLNode> html, LV l, String htmlTag, String innerTag,
            Predicate<String> compare
        )
    {
        InclusiveException.check(htmlTag);

        Vector<SubSection>  ret = new Vector<>();
        SubSection          s = null;
        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)
                &&  ((s = Util.Inclusive.subSectionOPT(html, i, l.end)) != null)
            )
                ret.addElement(s);

        return ret;
    }


    // ********************************************************************************************
    // ********************************************************************************************
    // MAIN PEEK METHODS, #2 - Predicate<TagNode>
    // ********************************************************************************************
    // ********************************************************************************************


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

        SubSection  ret;
        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)
                &&  ((ret = Util.Inclusive.subSectionOPT(html, i, l.end)) != null)
                &&  (--nth == 0)
            )
                return ret;

        return null;
    }

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

        SubSection  ret;
        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)
                &&  ((ret = Util.Inclusive.subSectionOPT(html, i, l.end)) != null)
                &&  (--nth == 0)
            )
                return ret;

        return null;
    }

    public static Vector<SubSection> ALL
        (Vector<? extends HTMLNode> html, LV l, Predicate<TagNode> p, String... htmlTags)
    {
        InclusiveException.check(htmlTags);

        Vector<SubSection>  ret = new Vector<>();
        SubSection          s;
        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)
                &&  ((s = Util.Inclusive.subSectionOPT(html, i, l.end)) != null)
            )
                ret.addElement(s);

        return ret;
    }
}