namespace MBN_STOCK_WEBVIEW.LegacyWeb.Tests;

public sealed class LegacyPlayoutNativeContractTests
{
    private static readonly string RepositoryRoot = FindRepositoryRoot();
    private static readonly string AppRoot = Path.Combine(
        RepositoryRoot,
        "src",
        "MBN_STOCK_WEBVIEW.LegacyParityApp");
    private static readonly string Playout = File.ReadAllText(
        Path.Combine(AppRoot, "MainWindow.Playout.cs"));
    private static readonly string Window = File.ReadAllText(
        Path.Combine(AppRoot, "MainWindow.xaml.cs"));
    private static readonly string Project = File.ReadAllText(
        Path.Combine(AppRoot, "MBN_STOCK_WEBVIEW.LegacyParityApp.csproj"));

    [Fact]
    public void ParityAppComposesTheVerifiedThirtyFiveSceneRuntime()
    {
        Assert.Contains("LegacySceneRuntimeFactory.cs", Project, StringComparison.Ordinal);
        Assert.Contains("LegacySceneRuntimeFactory.Create(", Playout,
            StringComparison.Ordinal);
        Assert.Contains("trustedManualSource: _manualNetSellStore", Playout,
            StringComparison.Ordinal);
        Assert.Contains("trustedViSource: _manualViStore", Playout,
            StringComparison.Ordinal);
    }

    [Fact]
    public void StartupDefaultBackgroundDependsOnAbsentLocalConfigAndSurfacesWarning()
    {
        Assert.Contains("File.Exists(", Playout, StringComparison.Ordinal);
        Assert.Contains("PlayoutOptionsLoader.DefaultPath", Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacyParityStartupCompositionResolver.Resolve(", Playout,
            StringComparison.Ordinal);
        Assert.Contains("_playoutInitializationWarning ?? status?.Message", Playout,
            StringComparison.Ordinal);
    }

    [Fact]
    public void OperatorCommandsUseTheNativeWorkflowAndCSharpPlaylist()
    {
        Assert.Contains("_controller.CreatePlayoutRequest(", Playout,
            StringComparison.Ordinal);
        Assert.Contains("_compositionOptions!.Current.FadeDuration", Playout,
            StringComparison.Ordinal);
        Assert.Contains("workflow.PrepareAsync(", Playout, StringComparison.Ordinal);
        Assert.Contains("workflow.TakeSelectedAsync(", Playout,
            StringComparison.Ordinal);
        Assert.DoesNotContain("workflow.TakeInAsync(", Playout, StringComparison.Ordinal);
        Assert.DoesNotContain(
            "string.IsNullOrWhiteSpace(workflow.State.PreparedCutCode)",
            Playout,
            StringComparison.Ordinal);
        Assert.Contains("workflow.NextAsync(", Playout, StringComparison.Ordinal);
        Assert.Contains("workflow.TakeOutAsync(", Playout, StringComparison.Ordinal);
        Assert.Contains("_controller.ReflectSuccessfulPlayout(", Playout,
            StringComparison.Ordinal);
        Assert.Contains("workflow.State.CurrentEntryId", Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacyOperatorPlayoutCommand.Prepare or", Playout,
            StringComparison.Ordinal);
        Assert.Contains(
            "command != LegacyOperatorPlayoutCommand.TakeOut",
            Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacyWorkflowNextKind.PlaylistNext", Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacySceneRefreshPolicy.TryGetInterval", Playout,
            StringComparison.Ordinal);
        Assert.Contains("WaitForPlayCompletionAsync", Playout, StringComparison.Ordinal);
    }

    [Fact]
    public void UnknownOutcomeQuarantinesWithoutAutomaticCommandRetry()
    {
        Assert.Contains("PlayoutResultCode.OutcomeUnknown", Playout,
            StringComparison.Ordinal);
        Assert.Contains("PlayoutResultCode.TimedOut", Playout, StringComparison.Ordinal);
        Assert.Contains("QuarantinePlayoutAsync", Playout, StringComparison.Ordinal);
        Assert.DoesNotContain("MaximumReconnectAttempts", Playout,
            StringComparison.Ordinal);
        Assert.DoesNotContain("ReconnectAsync", Playout, StringComparison.Ordinal);
    }

    [Fact]
    public void OriginalDissolveComboAcceptsOnlyItsZeroBasedTwentyItemIndex()
    {
        Assert.Contains("fadeDuration is < 0 or > 19", Playout,
            StringComparison.Ordinal);
        Assert.DoesNotContain("fadeDuration is < 0 or > 60", Playout,
            StringComparison.Ordinal);
    }

    [Fact]
    public void HomeAndEndStopAutomaticRefreshBeforeChangingTheCandidateRow()
    {
        Assert.Contains(
            "LegacySelectPlaylistBoundaryIntent boundary =>\n" +
            "                SelectPlaylistBoundaryAndStopRefresh(boundary.Last)",
            Window.Replace("\r\n", "\n", StringComparison.Ordinal),
            StringComparison.Ordinal);
        Assert.Contains(
            "private LegacyOperatorSnapshot SelectPlaylistBoundaryAndStopRefresh(bool last)",
            Playout,
            StringComparison.Ordinal);
        var helperStart = Playout.IndexOf(
            "private LegacyOperatorSnapshot SelectPlaylistBoundaryAndStopRefresh(bool last)",
            StringComparison.Ordinal);
        var helperEnd = Playout.IndexOf(
            "private async Task<LegacyOperatorSnapshot> ToggleBackgroundAsync",
            helperStart,
            StringComparison.Ordinal);
        Assert.True(helperStart >= 0 && helperEnd > helperStart);
        var helper = Playout[helperStart..helperEnd];
        Assert.True(
            helper.IndexOf("StopRefreshLoop();", StringComparison.Ordinal) <
            helper.IndexOf("_controller.SelectPlaylistBoundary(last)", StringComparison.Ordinal));
    }

    [Fact]
    public void PreparedProgramAndUnknownWriteOutcomesBlockOperatorMutations()
    {
        Assert.Contains("CanAcceptOperatorMutation()", Window, StringComparison.Ordinal);
        Assert.Contains("IsOperatorMutationQuarantined()", Window,
            StringComparison.Ordinal);
        Assert.Contains("ObserveOperatorMutationQuarantine(state)", Window,
            StringComparison.Ordinal);
        Assert.Contains("ManualFinancial?.WritesQuarantined", Playout,
            StringComparison.Ordinal);
        Assert.Contains("NamedPlaylist?.IsWriteQuarantined", Playout,
            StringComparison.Ordinal);
        Assert.Contains("ManualLists?.WritesQuarantined", Playout,
            StringComparison.Ordinal);
        Assert.Contains("OperatorCatalog?.WritesQuarantined", Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacyConfirmManualListIntent", Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacyCutPointerDownIntent", Playout,
            StringComparison.Ordinal);
        Assert.Contains("LegacyClearCutSelectionIntent", Playout,
            StringComparison.Ordinal);
    }

    private static string FindRepositoryRoot()
    {
        var current = new DirectoryInfo(AppContext.BaseDirectory);
        while (current is not null)
        {
            if (File.Exists(Path.Combine(current.FullName, "MBN_STOCK_WEBVIEW.sln")))
            {
                return current.FullName;
            }

            current = current.Parent;
        }

        throw new DirectoryNotFoundException("Repository root was not found.");
    }
}