namespace HaWeb.Settings.ParsingRules;
using System.Text;
using System.Web;
using TagFuncList = List<(Func<HaXMLReader.EvArgs.Tag, HaWeb.HTMLParser.XMLHelper<HaWeb.Settings.ParsingState.EditState>, bool>, Action<System.Text.StringBuilder, HaXMLReader.EvArgs.Tag, HaWeb.HTMLParser.XMLHelper<HaWeb.Settings.ParsingState.EditState>>)>;
using TextFuncList = List<(Func<HaXMLReader.EvArgs.Text, HaWeb.HTMLParser.XMLHelper<HaWeb.Settings.ParsingState.EditState>, bool>, Action<System.Text.StringBuilder, HaXMLReader.EvArgs.Text, HaWeb.HTMLParser.XMLHelper<HaWeb.Settings.ParsingState.EditState>>)>;
using WhitespaceFuncList = List<(Func<HaXMLReader.EvArgs.Whitespace, HaWeb.HTMLParser.XMLHelper<HaWeb.Settings.ParsingState.EditState>, bool>, Action<System.Text.StringBuilder, HaXMLReader.EvArgs.Whitespace, HaWeb.HTMLParser.XMLHelper<HaWeb.Settings.ParsingState.EditState>>)>;

public static class EditRules {
    private static readonly string DEFAULTELEMENT = HaWeb.Settings.HTML.DEFAULTELEMENT;

    private static readonly string LEMMACLASS = HaWeb.Settings.CSSClasses.LEMMACLASS;
    private static readonly string TITLECLASS = HaWeb.Settings.CSSClasses.TITLECLASS;
    private static readonly string ENTRYCLASS = HaWeb.Settings.CSSClasses.ENTRYCLASS;

    private static readonly string ALIGNCENTERCLASS = HaWeb.Settings.CSSClasses.ALIGNCENTERCLASS;
    private static readonly string ALIGNRIGHTCLASS = HaWeb.Settings.CSSClasses.ALIGNRIGHTCLASS;
    private static readonly string ADDEDCLASS = HaWeb.Settings.CSSClasses.ADDEDCLASS;
    private static readonly string SALCLASS = HaWeb.Settings.CSSClasses.SALCLASS;
    private static readonly string AQCLASS = HaWeb.Settings.CSSClasses.AQCLASS;
    private static readonly string SUPERCLASS = HaWeb.Settings.CSSClasses.SUPERCLASS;
    private static readonly string DELCLASS = HaWeb.Settings.CSSClasses.DELCLASS;
    private static readonly string NRCLASS = HaWeb.Settings.CSSClasses.NRCLASS;
    private static readonly string NOTECLASS = HaWeb.Settings.CSSClasses.NOTECLASS;
    private static readonly string ULCLASS = HaWeb.Settings.CSSClasses.ULCLASS;
    private static readonly string ANCHORCLASS = HaWeb.Settings.CSSClasses.ANCHORCLASS;
    private static readonly string FNCLASS = HaWeb.Settings.CSSClasses.FNCLASS;
    private static readonly string DULCLASS = HaWeb.Settings.CSSClasses.DULCLASS;
    private static readonly string FULCLASS = HaWeb.Settings.CSSClasses.FULCLASS;
    private static readonly string UPCLASS = HaWeb.Settings.CSSClasses.UPCLASS;
    private static readonly string SUBCLASS = HaWeb.Settings.CSSClasses.SUBCLASS;
    private static readonly string TULCLASS = HaWeb.Settings.CSSClasses.TULCLASS;
    private static readonly string HEADERCLASS = HaWeb.Settings.CSSClasses.HEADERCLASS;
    private static readonly string HANDCLASS = HaWeb.Settings.CSSClasses.HANDCLASS;
    private static readonly string TABLECLASS = HaWeb.Settings.CSSClasses.TABLECLASS;
    private static readonly string TABCLASS = HaWeb.Settings.CSSClasses.TABCLASS;
    private static readonly string CROSSEDDASHCLASS = HaWeb.Settings.CSSClasses.CROSSEDDASHCLASS;
    private static readonly string TEXTCLASS = HaWeb.Settings.CSSClasses.TEXTCLASS;

    private static readonly string BZGCLASS = HaWeb.Settings.CSSClasses.BZGCLASS;
    private static readonly string ZHCLASS = HaWeb.Settings.CSSClasses.ZHCLASS;
    private static readonly string EMPHCLASS = HaWeb.Settings.CSSClasses.EMPHCLASS;
    private static readonly string APPCLASS = HaWeb.Settings.CSSClasses.APPCLASS;
    private static readonly string MARGINGALBOXCLASS = HaWeb.Settings.CSSClasses.MARGINGALBOXCLASS;

    // Zeilen:
    private static readonly string ZHBREAKCLASS = HaWeb.Settings.CSSClasses.ZHBREAKCLASS;
    private static readonly string LINELINECLASS = HaWeb.Settings.CSSClasses.LINELINECLASS;
    private static readonly string LINEINDENTCLASS = HaWeb.Settings.CSSClasses.LINEINDENTCLASS;
    private static readonly string ZHPAGECLASS = HaWeb.Settings.CSSClasses.ZHBREAKCLASS;
    private static readonly string FIRSTPAGECLASS = HaWeb.Settings.CSSClasses.FIRSTPAGECLASS;
    private static readonly string EMPTYLINECLASS = HaWeb.Settings.CSSClasses.EMPTYLINECLASS;

    // Root-Elemente
    private static readonly string COMMENTCLASS = HaWeb.Settings.CSSClasses.COMMENTCLASS;
    private static readonly string EDITREASONCLASS = HaWeb.Settings.CSSClasses.EDITREASONCLASS;
    private static readonly string SUBSECTIONCLASS = HaWeb.Settings.CSSClasses.SUBSECTIONCLASS;
    private static readonly string TRADITIONCLASS = HaWeb.Settings.CSSClasses.TRADITIONCLASS;
    private static readonly string MARGINALCLASS = HaWeb.Settings.CSSClasses.MARGINALCLASS;
    private static readonly string LETTERCLASS = HaWeb.Settings.CSSClasses.LETTERCLASS;

    public static readonly TagFuncList OTagRules = new TagFuncList() {
        ( ( x, _) => x.Name == "align" && x["pos"] == "center", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ALIGNCENTERCLASS)) ),
        ( ( x, _) => x.Name == "align" && x["pos"] == "right", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ALIGNRIGHTCLASS)) ),
        ( ( x, _) => x.Name == "added", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ADDEDCLASS)) ),
        ( ( x, _) => x.Name == "sal", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, SALCLASS)) ),
        ( ( x, _) => x.Name == "aq", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, AQCLASS)) ),
        ( ( x, _) => x.Name == "super", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, SUPERCLASS)) ),
        ( ( x, _) => x.Name == "del", (sb, tag, reader) => {
            sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, DELCLASS));
            reader.State.active_del = true;
        }),
        ( ( x, _) => x.Name == "nr", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, NRCLASS)) ),
        ( ( x, _) => x.Name == "note", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, NOTECLASS)) ),
        ( ( x, _) => x.Name == "ul", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ULCLASS)) ),
        ( ( x, _) => x.Name == "anchor" && !String.IsNullOrWhiteSpace(x["ref"]), (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ANCHORCLASS)) ),
        ( ( x, _) => x.Name == "fn" && !String.IsNullOrWhiteSpace(x["index"]), (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, FNCLASS)) ),
        ( ( x, _) => x.Name == "dul", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, DULCLASS)) ),
        ( ( x, _) => x.Name == "ful", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, FULCLASS)) ),
        ( ( x, _) => x.Name == "up", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, UPCLASS)) ),
        ( ( x, _) => x.Name == "sub", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, SUBCLASS)) ),
        ( ( x, _) => x.Name == "tul", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, TULCLASS)) ),
        ( ( x, _) => x.Name == "header", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, HEADERCLASS)) ),
        ( ( x, _) => x.Name == "lemma", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, LEMMACLASS)) ),
        ( ( x, _) => x.Name == "eintrag", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ENTRYCLASS)) ),
        ( ( x, _) => x.Name == "titel", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, TITLECLASS)) ),
        ( ( x, _) => x.Name == "bzg", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, BZGCLASS)) ),
        ( ( x, _) => x.Name == "zh", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, ZHCLASS)) ),
        ( ( x, _) => x.Name == "emph", (sb, tag, _) => {  sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, EMPHCLASS)); } ),
        ( ( x, _) => x.Name == "app", (sb, tag, _) => {  sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, APPCLASS)); } ),
        ( ( x, _) => x.Name == "subsection", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, SUBSECTIONCLASS, tag["id"])) ),
        ( ( x, _) => x.Name == "kommentar", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, COMMENTCLASS, tag["id"])) ),
        ( ( x, _) => x.Name == "editreason", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, EDITREASONCLASS)) ),
        ( ( x, _) => x.Name == "subsection", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, LETTERCLASS)) ),
        ( ( x, _) => x.Name == "letterTradition", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, TRADITIONCLASS)) ),
        ( ( x, _) => x.Name == "marginal", (sb, tag, reader) => {
            sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, MARGINALCLASS));
            reader.State.active_skipwhitespace = !reader.State.active_skipwhitespace;
        }),
        ( ( x, _) => x.Name == "hand", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, HANDCLASS)) ),
        ( ( x, _) => x.Name == "tabs", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, TABLECLASS)) ),
        ( ( x, _) => x.Name == "tab" && !String.IsNullOrWhiteSpace(x["value"]), (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, TABCLASS + tag["value"])))
    };

    public static readonly TagFuncList CTagRules = new TagFuncList() {
        ( ( x, _) => x.Name == "align", (sb, tag, _) =>  sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "added", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "sal", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "aq", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "super", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "del", (sb, tag, reader) => {
            sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT));
            reader.State.active_del = false; // TODO SMTH IS FISHY HERE!
        }),
        ( ( x, _) => x.Name == "nr", (sb, tag, _) =>  sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "note", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "ul", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "anchor", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "fn", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "dul", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "up", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "ful", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "sub", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "tul", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "header", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "lemma", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "eintrag", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "titel", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "bzg", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "zh", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "emph", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "app", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "subsection", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "kommentar", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "editreason", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "subsection", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "letterTradition", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "marginal", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "tabs", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "tab", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) ),
        ( ( x, _) => x.Name == "hand", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT)) )
    };

    public static readonly TextFuncList TextRules = new TextFuncList() {
        ( ( x, _) => true, (sb, txt, reader) => {
            sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement(DEFAULTELEMENT, TEXTCLASS));
            if (reader.State.active_del)
                sb.Append(HttpUtility.HtmlEncode(txt.Value).Replace("–", "<" + DEFAULTELEMENT + " class=\"" + CROSSEDDASHCLASS + "\">–</" + DEFAULTELEMENT + ">"));
            else
                sb.Append(HttpUtility.HtmlEncode(txt.Value));
            sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateEndElement(DEFAULTELEMENT));
    })};
    
    public static readonly TagFuncList STagRules = new TagFuncList() {
        ( ( x, _) => x.Name == "line", (sb, tag, _) => sb.Append(HaWeb.HTMLHelpers.TagHelpers.CreateElement("br")) )
    };

    public static readonly WhitespaceFuncList WhitespaceRules = new WhitespaceFuncList() {
        ( ( _, _) => true, ( sb, txt, reader) => {
            if (reader.State.active_skipwhitespace)
                sb.Append(txt.Value);
            else
                reader.State.active_skipwhitespace = !reader.State.active_skipwhitespace;
    })};
}