using HtmlAgilityPack;
using System.Text.Json.Serialization;

namespace Beam.Dynamic {
    [JsonDerivedType(typeof(ParagraphedContentDataProvider), "paragraphed")]
    [JsonDerivedType(typeof(ListContentDataProvider), "list")]
    [JsonDerivedType(typeof(ContentsArrayDataProvider), "array")]
    [JsonDerivedType(typeof(ContentsDataProvider), "single")]
    [JsonDerivedType(typeof(DropDownDataProvider), "dropdown")]
    [JsonDerivedType(typeof(AnchorCollectionDataProvider), "anchor-list")]
    [JsonDerivedType(typeof(AnchorDataProvider), "anchor")]
    public interface IDataProvider {
        public string GetString(HtmlDocument document)
            => (this as IDataProvider<object>)?.Get(document)?.ToString() ?? "";
    }

    public interface IDataProvider<out T> : IDataProvider {
        public T Get(HtmlDocument document);
        //public HtmlNode? GetNode(HtmlDocument document);
    }
}