using System.Diagnostics.CodeAnalysis;
using System.Text.Json.Nodes;
using System.Text.RegularExpressions;
using NLog;
using StabilityMatrix.Core.Attributes;
using StabilityMatrix.Core.Helper;
using StabilityMatrix.Core.Helper.Cache;
using StabilityMatrix.Core.Models.FileInterfaces;
using StabilityMatrix.Core.Models.Progress;
using StabilityMatrix.Core.Processes;
using StabilityMatrix.Core.Python;
using StabilityMatrix.Core.Services;

namespace StabilityMatrix.Core.Models.Packages;

[Singleton(typeof(BasePackage))]
public class StableDiffusionDirectMl(
    IGithubApiCache githubApi,
    ISettingsManager settingsManager,
    IDownloadService downloadService,
    IPrerequisiteHelper prerequisiteHelper
) : A3WebUI(githubApi, settingsManager, downloadService, prerequisiteHelper)
{
    private static readonly Logger Logger = LogManager.GetCurrentClassLogger();

    public override string Name => "stable-diffusion-webui-directml";
    public override string DisplayName { get; set; } = "Stable Diffusion Web UI";
    public override string Author => "lshqqytiger";
    public override string LicenseType => "AGPL-3.0";
    public override string LicenseUrl =>
        "https://github.com/lshqqytiger/stable-diffusion-webui-directml/blob/master/LICENSE.txt";
    public override string Blurb => "A fork of Automatic1111's Stable Diffusion WebUI with DirectML support";
    public override string LaunchCommand => "launch.py";
    public override Uri PreviewImageUri =>
        new("https://github.com/lshqqytiger/stable-diffusion-webui-directml/raw/master/screenshot.png");

    public override SharedFolderMethod RecommendedSharedFolderMethod => SharedFolderMethod.Symlink;

    public override PackageDifficulty InstallerSortOrder => PackageDifficulty.Recommended;

    public override IEnumerable<TorchVersion> AvailableTorchVersions =>
        new[] { TorchVersion.Cpu, TorchVersion.DirectMl };

    public override bool ShouldIgnoreReleases => true;

    public override async Task InstallPackage(
        string installLocation,
        TorchVersion torchVersion,
        SharedFolderMethod selectedSharedFolderMethod,
        DownloadPackageVersionOptions versionOptions,
        IProgress<ProgressReport>? progress = null,
        Action<ProcessOutput>? onConsoleOutput = null
    )
    {
        progress?.Report(new ProgressReport(-1f, "Setting up venv", isIndeterminate: true));
        // Setup venv
        await using var venvRunner = new PyVenvRunner(Path.Combine(installLocation, "venv"));
        venvRunner.WorkingDirectory = installLocation;
        await venvRunner.Setup(true, onConsoleOutput).ConfigureAwait(false);

        switch (torchVersion)
        {
            case TorchVersion.DirectMl:
                await InstallDirectMlTorch(venvRunner, progress, onConsoleOutput).ConfigureAwait(false);
                break;
            case TorchVersion.Cpu:
                await InstallCpuTorch(venvRunner, progress, onConsoleOutput).ConfigureAwait(false);
                break;
        }

        await venvRunner.PipInstall("httpx==0.24.1").ConfigureAwait(false);

        // Install requirements file
        progress?.Report(new ProgressReport(-1f, "Installing Package Requirements", isIndeterminate: true));
        Logger.Info("Installing requirements_versions.txt");

        var requirements = new FilePath(installLocation, "requirements_versions.txt");
        await venvRunner
            .PipInstallFromRequirements(requirements, onConsoleOutput, excludes: "torch")
            .ConfigureAwait(false);

        progress?.Report(new ProgressReport(1f, "Install complete", isIndeterminate: false));
    }
}