using AnimeAnnouncer.Torrents;
using Microsoft.Extensions.Configuration;

namespace MassTorrentAdd
{
    internal class Program
    {
        static async Task Main(string[] args)
        {
            if(args.Length == 0)
            {
                Console.WriteLine("Please provide the nyaa URL to target for download.");
                return;
            }
            String url = args[0];

            var builder = new ConfigurationBuilder()
        .SetBasePath(Directory.GetCurrentDirectory())
        .AddJsonFile("appSettings.json", optional: false, reloadOnChange: true);

            IConfigurationRoot configuration = builder.Build();
            String transmissionHost = configuration.GetValue<String>("transmissionURI")!;
            String? transmissionUsername = configuration.GetValue<String>("transmissionUsername");
            String? transmissionPassword = configuration.GetValue<String>("transmissionPassword");
            String destinationFolder = configuration.GetValue<String>("destinationFolder")!;

            Console.WriteLine($"Using transmission server {transmissionHost}");
            TransmissionService transmission;
            try
            {
                transmission = await TransmissionService.ConnectAsync(transmissionHost, transmissionUsername, transmissionPassword);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return;
            }

            var nyaa = new NyaaRssReader();
            List<NyaaRssItem> items;
            try
            {
                items = await nyaa.ReadAsync(url);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"An error occurred while contacting Nyaa for a response: {ex.Message}");
                return;
            }
            if (items.Count == 0)
            {
                Console.WriteLine("No items found in the feed");
                return;
            }

            Console.WriteLine("Downloading ..");
            foreach ( var item in items )
            {
                Console.WriteLine($"{item.Title}");
            }
            String transmissionDirectoryName = TorrentDirectoryNamer.FromTitle(items.First().Title, destinationFolder);
            Console.WriteLine($"{items.Count} item(s) to {transmissionDirectoryName}");

            Console.WriteLine("Continue?");
            if(Console.ReadKey().KeyChar != 'y')
            {
                Console.WriteLine("Exiting");
                return;
            }
            foreach (var item in items)
            {
                var torrentData = await nyaa.DownloadTorrentAsync(item);
                await transmission.AddNewTorrentFileToServerAsync(torrentData, transmissionDirectoryName);
            }
            Console.WriteLine("Completed");
        }
    }
}