using Moq;
using SilverOS.Welcome.Core.Apply;
using SilverOS.Welcome.Core.Apps;

public class BootstrapServiceRevertKioskTests
{
    private static Mock<IProcessRunner> Ok()
    {
        var m = new Mock<IProcessRunner>();
        m.Setup(r => r.RunAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<CancellationToken>()))
         .ReturnsAsync(new ProcessResult(0, "", ""));
        return m;
    }

    private static Mock<IProcessRunner> Fail()
    {
        var m = new Mock<IProcessRunner>();
        m.Setup(r => r.RunAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<CancellationToken>()))
         .ReturnsAsync(new ProcessResult(1, "", "the operation failed"));
        return m;
    }

    [Fact]
    public async Task RevertKioskAsync_is_best_effort_and_does_not_throw_on_nonzero_exit()
    {
        // Kiosk revert is best-effort (like TearDownAsync): a non-zero exit must NOT
        // fail the apply — the real user still gets Explorer regardless of WESL state.
        var ex = await Record.ExceptionAsync(() =>
            new BootstrapService(Fail().Object).RevertKioskAsync());
        Assert.Null(ex);
    }

    [Fact]
    public async Task RevertKioskAsync_disables_keyboard_filter_rules()
    {
        var run = Ok();
        await new BootstrapService(run.Object).RevertKioskAsync();
        // First call: disable the Keyboard Filter predefined-key blocks for the real user.
        run.Verify(r => r.RunAsync("powershell.exe", It.Is<string>(s =>
            s.Contains("WEKF_PredefinedKey") &&
            s.Contains("Enabled=$false")),
            It.IsAny<CancellationToken>()), Times.Once);
    }

    [Fact]
    public async Task RevertKioskAsync_reverts_escape_policies()
    {
        var run = Ok();
        await new BootstrapService(run.Object).RevertKioskAsync();
        // Second call: policy revert — must remove the three escape policy values.
        run.Verify(r => r.RunAsync("powershell.exe", It.Is<string>(s =>
            s.Contains("Remove-ItemProperty") &&
            s.Contains("DisableTaskMgr") &&
            s.Contains("DisableLockWorkstation") &&
            s.Contains("HideFastUserSwitching")),
            It.IsAny<CancellationToken>()), Times.Once);
    }

    [Fact]
    public async Task ApplyService_calls_revert_kiosk_before_teardown()
    {
        var order = new List<string>();
        var run = new Mock<IProcessRunner>();
        run.Setup(r => r.RunAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<CancellationToken>()))
           .Callback<string, string, CancellationToken>((_, a, _) =>
           {
               if (a.Contains("Invoke-Hardening")) order.Add("modules");
           })
           .ReturnsAsync(new ProcessResult(0, "", ""));

        var acct = new Mock<IAccountService>();
        acct.Setup(a => a.CreateAccountsAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<CancellationToken>()))
            .Callback(() => order.Add("accounts"))
            .Returns(Task.CompletedTask);

        var bl = new Mock<IBitLockerService>();
        bl.Setup(b => b.EnableAsync(It.IsAny<string>(), It.IsAny<CancellationToken>()))
          .Callback(() => order.Add("bitlocker"))
          .Returns(Task.CompletedTask);

        var boot = new Mock<IBootstrapService>();
        boot.Setup(b => b.RevertKioskAsync(It.IsAny<CancellationToken>()))
            .Callback(() => order.Add("revert-kiosk"))
            .Returns(Task.CompletedTask);
        boot.Setup(b => b.TearDownAsync(It.IsAny<string>(), It.IsAny<CancellationToken>()))
            .Callback(() => order.Add("teardown"))
            .Returns(Task.CompletedTask);

        var installer = new Mock<IAppInstaller>();
        installer.Setup(i => i.InstallAsync(It.IsAny<IReadOnlyList<AppCatalogEntry>>(),
                It.IsAny<IProgress<ApplyProgress>>(), It.IsAny<CancellationToken>()))
            .ReturnsAsync(System.Array.Empty<AppInstallResult>());

        var sut = new ApplyService(run.Object, acct.Object, bl.Object, boot.Object, installer.Object, "C:\\hard");
        var flavour = new SilverOS.Welcome.Core.Flavours.FlavourManifest
        {
            Id = "daily-driver",
            Hardening = new SilverOS.Welcome.Core.Flavours.HardeningSpec { Modules = new[] { "00" } }
        };
        var req = new ApplyRequest(flavour, "alice", "pw", "adminpw", "123456", "sm-bootstrap", System.Array.Empty<AppCatalogEntry>());

        await sut.RunAsync(req, new Progress<ApplyProgress>(_ => { }));

        // revert-kiosk must precede teardown so the sm-bootstrap SID still resolves.
        Assert.Equal(new[] { "modules", "accounts", "bitlocker", "revert-kiosk", "teardown" }, order);
    }
}