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 BeamDataDictionary BeamData { get; set; } = [];

        public static IArchitecture Architecture = IArchitecture.Default;

        const string BeamDataPath = "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<BeamDataDictionary>.Create(
                BeamDataPath,
                false,
                DataKind.Shared,
                logger,
                ConversionOptions
            );

            BeamData = sharedContext.Data;

            BeamData.Clear();
            NovelStatics.Define_WoDuShu(BeamData);
            NovelStatics.Define_WoDuShu_HouseOfHorrors(BeamData);
            ClassicTemplates.Register(BeamData);

            CancellationTokenSource cts = new();

            HtmlTransformer<IDocumentMetaData> ArticleDataTransformer(DataBindings? binding) => (x) => {
                return new ArticleData() {
                    Authors = [OnlineCleaner.Clean(binding?.Authors?.Resolve(x) ?? "")],
                    Name = OnlineCleaner.Clean(binding?.Title?.ResolveString(x) ?? ""),
                    Categories = OnlineCleaner.Clean(binding?.Tags?.ResolveString(x) ?? "").Split(';') ?? [],
                    Description = OnlineCleaner.Clean(binding?.Description?.ResolveString(x) ?? "")
                };
            };

            HtmlTransformer<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 new StringDocument(Path.GetRandomFileName(), OnlineCleaner.Clean(resolved?.Content)) {
                    MetaData = meta
                };
            };

            var novel = new DataKey<TextResource>("novels:house_of_horrors");
            var context_aux = Architecture.GetMeta(web, novel, BeamData, cts.Token);
            context_aux.RetryReporter = new Progress<RetryReport>((x) => Console.WriteLine($"Failed. Trying again. {x.TryNumber}"));
            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 metadata2 = await DownloadBuilder<IDocumentMetaData>.FromMeta(novel, BeamData)
                .WithLink()
                .WithTransformer(ArticleDataTransformer)
                .Configure((x) => x
                    .WithRetryReporter(new Progress<RetryReport>())
                    .WithTimeOut(TimeSpan.FromSeconds(15)))
                .Build()
                .FirstAsync();

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

            var downloader2 = DownloadBuilder<IDocument>.FromText(novel, BeamData)
                .WithLinkGenerator()
                .WithTransformer((x) => DocumentTransformer(x, metadata2.Data))
                .Configure((x) => x
                    .WithDownloadReporter(new Progress<DownloadReport>((x) => logger.LogInformation(x.ToString())))
                    .WithTimeOut(TimeSpan.FromSeconds(15))
                )
                .Build();

            

            List<Task<Ordered<IDocument>>> translationTasks = [];
            List<Ordered<IDocument>> documents = [];

            await foreach (var download in downloader2.Take(10)) {
                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}");

                //translationTasks.Add(Task.Run(async () => {
                //    logger.LogInformation("Beginning translation {} task for {}", download.Order, articleMetaData.Name);
                //    var ret = new Ordered<IDocument>(await QuickAndDirtyJanitor.TranslateAsync(download.Data), download.Order);
                //    logger.LogInformation("Finished translation {} task for {}", download.Order, articleMetaData.Name);
                //    return ret;
                //}));
            }

            documents = (await Task.WhenAll(translationTasks)).ToList();

            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) => BeamData.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!");
        }
    }
}