using aeqw89.PersistentData;
using aeqw89.DataKeys;
using Beam.Dynamic;
using HtmlAgilityPack;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Text.Json.Serialization.Metadata;
using Beam.Temporary.Cli.Templates.Classic;
using Beam.Exports;

namespace Beam.Temporary.Cli {
    internal class Program {

        public static JsonSerializerOptions ConversionOptions { get; internal set; } = new();

        public static SharedDataDictionary Shared { get; set; } = [];

        public static IArchitecture Architecture = IArchitecture.Default;

        const string SharedDataPath = "data/.dat";

        static async Task Main(string[] args) {
            ConversionOptions.Converters.AddPersistentDataRequiredConverters();
            ConversionOptions.WriteIndented = true;

            var web = new HtmlWeb();

            var lf = LoggerFactory.Create((x) => {
                x.AddConsole();
            });

            ILogger logger = lf
                .CreateLogger("Program");

            await using var sharedContext = await DataDictionaryContext<SharedDataDictionary>.Create(
                SharedDataPath,
                DataKind.Shared,
                logger,
                ConversionOptions
            );

            Shared = sharedContext.Data;

            Shared.Clear();
            NovelStatics.Define_LightNovelWorld(Shared);
            NovelStatics.Define_LightNovelWorld_Novel_TheLegendaryMechanic(Shared);
            NovelStatics.Define_LightNovelWorl_Novel_IAloneLevelUp(Shared);
            ClassicTemplates.Register(Shared);

            var novel = new DataKey<TextResource>("novels:i_alone_level_up");
            var context_aux = Architecture.GetMeta(web, novel, Shared);
            var metaDownloader = new DownloadEnumerable<IDocumentMetaData>(
                new SequentialFragmentDownloader<IDocumentMetaData>(
                    context_aux,
                    (c) => new UnitFragmentDownloader<IDocumentMetaData>(c.Web, c.AsyncTranformer, c.AsyncFailurePredicates, 4, logger),
                    logger)
                .UnwrapFragmented());
            var metadata = (await metaDownloader.FirstAsync());

            var context = Architecture.GetTextRecord(web, novel, Shared, metadata.Data);
            context.DownloadReporter = new Progress<IDocument>((x) => Console.WriteLine(x.Filename));
            var downloader = new DownloadEnumerable<IDocument>(
                new SequentialFragmentDownloader<IDocument>(
                    context, 
                    (c) => new UnitFragmentDownloader<IDocument>(c.Web, c.AsyncTranformer, c.AsyncFailurePredicates, 4, logger),
                    logger)
                .UnwrapFragmented());

            List<Ordered<IDocument>> documents = []; 
            
            await foreach (var download in downloader.Take(20)) {
                if (!download.Data.MetaData.TryGetValue(Architecture.ChapterKey, out var meta))
                    continue;
                if (meta is not ArticleData articleMetaData)
                    continue;
                //Console.WriteLine($"Title: {data.Name}");
                //Console.WriteLine($"Description: {data.Description}");
                //Console.WriteLine($"Categories: {data.Categories.Aggregate((x, y) => $"{x}; {y}")}");
                //Console.WriteLine($"Authors: {data.Authors.Aggregate((x,y) => $"{x}; {y}")}");
                Console.WriteLine($"Chapter title: {articleMetaData.Name}");
                //Console.WriteLine($"Content: {download}");

                documents.Add(download);
            } 

            string testDir = Path.Combine("txt", Path.GetRandomFileName());
            Directory.CreateDirectory(testDir);

            int len = documents.MaxBy((x) => x.Order)?.Order ?? -1;
            foreach (var document in documents.OrderBy((x) => x.Order)) {
                document.Data.MetaData.TryGetValue(Architecture.ChapterKey, out var chapterMetaData);
                Dictionary<string, string> linkButtons = new();
                if (document.Order != 0)
                    linkButtons.Add("Previous", $"{document.Order - 1}.html");
                if (document.Order != len)
                    linkButtons.Add("Next", $"{document.Order + 1}.html");
                new HtmlExporter(document.Data, chapterMetaData as ArticleData, linkButtons).Write(Path.Combine(testDir, $"{document.Order}.html"));
            }

            Console.ReadKey();

            //foreach (var download in documents.OrderBy((x) => x.Order)) {
            //    if (download.Data.TryGetTaggedMetaData<ArticleData>(Architecture.ChapterKey, out var meta))
            //        Console.WriteLine($"{download.Order}:{meta.Name}");
            //}

            //string[] templates = new DataKey<File>[] {
            //    HtmlBook.Keys.ContentPage,
            //    HtmlBook.Keys.NoContentPage,
            //    HtmlBook.Keys.TitlePage,
            //    HtmlBook.Keys.StylesPage,
            //}.Select(
            //    (x) => Shared.Files.ReadToString(x.WithNamespace("aeqw89:files:templates:classic"))
            //).ToArray();

            //HtmlBook book = new(
            //    bookname: Path.Combine(Path.GetRandomFileName(), "I Alone Level Up"), 
            //    new CssData(), 
            //    new ArticleData(), 
            //    new HtmlBookTemplates() {
            //        ContentPageTemplate = templates[0],
            //        NoContentTemplate = templates[1],
            //        TitlePageTemplate = templates[2],
            //        CssTemplate = templates[3],
            //    },
            //    documents: documents.Select((x) => x.Data).ToList()
            //);

            //book.Update();
            //Console.WriteLine("One variable!");
        }
    }
}