using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Wabbajack.Downloaders.Interfaces;
using Wabbajack.DTOs;
using Wabbajack.DTOs.DownloadStates;
using Wabbajack.Hashing.xxHash64;
using Wabbajack.Installer;
using Wabbajack.Paths.IO;
using Wabbajack.Services.OSIntegrated;
using Xunit;

namespace Wabbajack.Downloaders.Dispatcher.Test;

public class DownloaderTests
{
    private readonly DownloadDispatcher _dispatcher;
    private readonly TemporaryFileManager _temp;

    public DownloaderTests(DownloadDispatcher dispatcher, TemporaryFileManager temp)
    {
        _temp = temp;
        _dispatcher = dispatcher;
    }

    /// <summary>
    ///     Pairs of archives for each downloader. The first archive is considered valid,
    ///     the second should be invalid.
    /// </summary>
    public static IEnumerable<object[]> TestStates =>
        new List<object[]>
        {
            // Nexus Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("U9NkoW0w21k="),
                    State = new Nexus
                    {
                        Game = Game.SkyrimSpecialEdition,
                        ModID = 51939,
                        FileID = 212497
                    }
                },
                new Archive
                {
                    State = new Nexus
                    {
                        Game = Game.SkyrimSpecialEdition,
                        ModID = 51939,
                        FileID = 212497 + 1
                    }
                }
            },
            // Google Drive Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("eSIyd+KOG3s="),
                    State = new DTOs.DownloadStates.GoogleDrive {Id = "1grLRTrpHxlg7VPxATTFNfq2OkU_Plvh_"}
                },
                new Archive
                {
                    State = new DTOs.DownloadStates.GoogleDrive {Id = "2grLRTrpHxlg7VPxATTFNfq2OkU_Plvh_"}
                }
            },
            // LoversLab Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("eSIyd+KOG3s="),
                    State = new LoversLab {IPS4Mod = 11116, IPS4File = "WABBAJACK_TEST_FILE.zip"}
                },
                new Archive
                {
                    State = new LoversLab {IPS4Mod = 11116, IPS4File = "WABBAJACK_TEST_FILE_bad.zip"}
                }
            },
            // LoversLab Attachment Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("gLJDxGDaeQ0="),
                    State = new LoversLab {IsAttachment = true, IPS4Mod = 853295}
                },
                new Archive
                {
                    State = new LoversLab {IsAttachment = true, IPS4Mod = 85329599}
                }
            },
            // MediaFire Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("eSIyd+KOG3s="),
                    State = new DTOs.DownloadStates.MediaFire
                    {
                        Url = new Uri("http://www.mediafire.com/file/agiqzm1xwebczpx/WABBAJACK_TEST_FILE.txt")
                    }
                },
                new Archive
                {
                    State = new DTOs.DownloadStates.MediaFire
                    {
                        Url = new Uri("http://www.mediafire.com/file/agiqzm1xwebcz42/WABBAJACK_TEST_FILE.txt")
                    }
                }
            },
            // Mega Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("eSIyd+KOG3s="),
                    State = new Mega
                    {
                        Url = new Uri("https://mega.nz/file/CsMSFaaJ#-uziC4mbJPRy2e4pPk8Gjb3oDT_38Be9fzZ6Ld4NL-k")
                    }
                },
                new Archive
                {
                    State = new Mega
                    {
                        Url = new Uri("https://mega.nz/file/zz42FaaJ#-uziC4mbJPRy2e4pPk8Gjb3oDT_38Be9fzZ6L42NL-k")
                    }
                }
            },
            // ModDB Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("V3ejL5oUeQI="),
                    State = new DTOs.DownloadStates.ModDB
                        {Url = new Uri("https://www.moddb.com/downloads/start/199178")}
                },
                new Archive
                {
                    State = new DTOs.DownloadStates.ModDB
                        {Url = new Uri("https://www.moddb.com/downloads/start/199178000000")}
                }
            },
            // VectorPlexus Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("eSIyd+KOG3s="),
                    State = new VectorPlexus {IPS4Mod = 290, IPS4File = "WABBAJACK_TEST_FILE.zip"}
                },
                new Archive
                {
                    State = new VectorPlexus {IPS4Mod = 290, IPS4File = "WABBAJACK_TEST_FILE_bad.zip"}
                }
            },
            // Wabbajack CDN Data
            new object[]
            {
                new Archive
                {
                    Hash = Hash.FromBase64("u7aZhqgDA6Y="),
                    State = new WabbajackCDN
                    {
                        Url = new Uri(
                            "https://authored-files.wabbajack.org/Tonal%20Architect_WJ_TEST_FILES.zip_9cb97a01-3354-4077-9e4a-7e808d47794f")
                    }
                },
                new Archive
                {
                    State = new WabbajackCDN
                    {
                        Url = new Uri(
                            "https://authored-files.wabbajack.org/Tonal%20Architect_WJ_TEST_FILES.zip_9cb97a01-3354-4077-9e4a-7e808d47794fFFOOO")
                    }
                }
            },
            // Bethesda
            new object[]
            {
                new Archive
                {
                    Hash = default,
                    State = new DTOs.DownloadStates.Bethesda
                    {
                        Game = Game.SkyrimSpecialEdition,
                        IsCCMod = true,
                        ProductId = 4,
                        BranchId = 90898,
                        ContentId = "4059054"
                    }
                },
                new Archive
                {
                    Hash = default,
                    State = new DTOs.DownloadStates.Bethesda
                    {
                        Game = Game.SkyrimSpecialEdition,
                        IsCCMod = true,
                        ProductId = 6,
                        BranchId = 9898,
                        ContentId = "059054"
                    }
                },
            }
        };

    private bool AutoPassTest(Archive archive)
    {
        return false;
    }

    [Theory]
    [Trait("Category", "FlakeyNetwork")]
    [MemberData(nameof(TestStates))]
    public async Task TestDownloadingFile(Archive archive, Archive badArchive)
    {
        if (AutoPassTest(archive)) return;
        await using var tempFile = _temp.CreateFile();
        var hash = await _dispatcher.Download(archive, tempFile.Path, CancellationToken.None);
        Assert.Equal(archive.Hash, hash);
    }

    [Theory]
    [Trait("Category", "FlakeyNetwork")]
    [MemberData(nameof(TestStates))]
    public async Task TestFileVerification(Archive goodArchive, Archive badArchive)
    {
        if (AutoPassTest(goodArchive)) return;
        Assert.True(await _dispatcher.Verify(goodArchive, CancellationToken.None));
        Assert.False(await _dispatcher.Verify(badArchive, CancellationToken.None));
    }

    [Theory]
    [Trait("Category", "FlakeyNetwork")]
    [MemberData(nameof(TestStates))]
    public async Task CanParseAndUnParseUrls(Archive goodArchive, Archive badArchive)
    {
        if (AutoPassTest(goodArchive)) return;
        var downloader = _dispatcher.Downloader(goodArchive);
        if (downloader is IUrlDownloader urlDownloader)
        {
            var unparsed = urlDownloader.UnParse(goodArchive.State);

            var parsed = urlDownloader.Parse(unparsed);
            Assert.NotNull(parsed);

            Assert.Equal(goodArchive.State.GetType(), parsed.GetType());
            Assert.True(await _dispatcher.Verify(new Archive {State = parsed, Hash = goodArchive.Hash}, CancellationToken.None));
        }
    }

    [Theory]
    [MemberData(nameof(TestStates))]
    public async Task CanParseAndUnParseMetaInis(Archive goodArchive, Archive badArchive)
    {
        var meta = _dispatcher.MetaIniSection(goodArchive);
        var parsedIni = meta.LoadIniString()["General"];
        var newState = await _dispatcher.ResolveArchive(parsedIni.ToDictionary(d => d.KeyName, d => d.Value));
        Assert.NotNull(newState);
        Assert.Equal(meta, _dispatcher.MetaIniSection(new Archive {State = newState!}));
    }
}