using System;
using System.Linq;
using System.Net;
using System.Text.RegularExpressions;

namespace C4IT.API
{
    public static class ConverterHelper
    {
        public static string Html2Plaintext(string html)
        {
            if (string.IsNullOrWhiteSpace(html))
                return string.Empty;

            // 1. HTML‐Entities dekodieren (z.B. ü → ü)
            string decoded = WebUtility.HtmlDecode(html);

            // 2. </p> und <br> durch Zeilenumbruch ersetzen
            string withBreaks = Regex.Replace(
                decoded,
                   @"</(?:p|div|li|blockquote|pre|h[1-6]|tr)\s*>      # schließende Block-Tags
                      |<(?:br|hr)\b[^>]*>                             # <br>, <hr>
                      |<(?:ul|ol|table|thead|tbody|tfoot|article      # öffnende Block-Container
                      |section|nav|aside|header|footer
                      |figure|figcaption|details|summary)[^>]*>",
                " ",
                RegexOptions.IgnorePatternWhitespace | RegexOptions.IgnoreCase);

            // 3. Alle übrigen Tags entfernen
            string noTags = Regex.Replace(withBreaks, @"<[^>]+>", string.Empty);

            return noTags.Trim();
        }

        public static bool ObjectToBoolConverter(object source)
        {
            try
            {
                if (source.Equals("1"))
                {
                    source = 1;
                }
                return Convert.ToBoolean(source);
            }
            catch (Exception)
            {
                return false;
            }
        }

        public static int ObjectToIntConverter(object source)
        {
            try
            {
                return Convert.ToInt32(source);
            }
            catch (Exception)
            {
                return 0;
            }
        }

        public static string ObjectToStringConverter(this object value)
        {
            return (value ?? string.Empty).ToString();
        }


    }
}