using aeqw89.DataKeys;
using Beam.Dynamic;
using HtmlAgilityPack;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Beam.Temporary.Cli {
    public static class CommonTransformers {
        public static AsyncTransformer<HtmlDocument, IDocumentMetaData> ArticleDataTransformer(DataBindings? binding) => (x) => {
            return Task.FromResult<IDocumentMetaData>(new ArticleData() {
                Authors = binding?.Authors?.Get(x)?.Select(OnlineCleaner.Clean)?.ToArray() ?? [],
                Name = OnlineCleaner.Clean(binding?.Title?.Get(x) ?? ""),
                Categories = binding?.Tags?.Get(x)?.Select(OnlineCleaner.Clean)?.ToArray() ?? [],
                Description = OnlineCleaner.Clean(binding?.Description?.Get(x) ?? "")
            });
        };

        public static AsyncTransformer<HtmlDocument, IDocument> DocumentTransformer(DataBindings? binding, IDocumentMetaData? metaData = null) => (x) => {
            var resolved = binding?.Resolve(x);
            var articleData = new ArticleData() {
                Name = OnlineCleaner.Clean(resolved?.Title),
            };
            Dictionary<DataKey<IDocumentMetaData>, IDocumentMetaData> meta = [];
            meta.Add(IArchitecture.Default.ChapterKey, articleData);
            if (metaData is not null)
                meta.Add(IArchitecture.Default.BookKey, metaData);
            return Task.FromResult<IDocument>(new StringDocument(Path.GetRandomFileName(), OnlineCleaner.Clean(resolved?.Content)) {
                MetaData = meta
            });
        };
    }
}