using System.Text.Json;
using System.Text.Json.Serialization;
using System.Text.RegularExpressions;

namespace Manager.YouTube.Util.Converters;

public partial class JsonUrlEscapeConverter : JsonConverter<string>
{
    public override string? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
    {
        var url = reader.GetString();
        if (string.IsNullOrWhiteSpace(url))
        {
            return url;
        }

        return UrlPatternRegex().IsMatch(url) ? Uri.UnescapeDataString(url) : url;
    }

    public override void Write(Utf8JsonWriter writer, string value, JsonSerializerOptions options)
    {
        writer.WriteStringValue(value);
    }

    [GeneratedRegex("^(https?|ftp)://", RegexOptions.IgnoreCase | RegexOptions.Compiled, "nl-NL")]
    private static partial Regex UrlPatternRegex();
}