using DodoSSH.Client.Shell.ViewModels;

namespace DodoSSH.Client.App.Tests;

/// <summary>
/// That unlocking with the device key is described in the words of the platform it runs on.
/// </summary>
/// <remarks>
/// The unlock card offered "USE WINDOWS HELLO" on a Mac and the settings page told a Linux machine it needed a
/// Windows keystore. Each platform's wording is checked for every other platform's names, because that is the
/// mistake: a sentence borrowed from the one platform the feature was written on first.
/// </remarks>
public sealed class DeviceUnlockWordingTests
{
    public static TheoryData<string> Platforms => ["Windows", "Mac", "Linux", "Android"];

    [Theory]
    [MemberData(nameof(Platforms))]
    public void EachPlatform_NamesOnlyItsOwnGesture(string platform)
    {
        var wording = For(platform);

        var foreign = new Dictionary<string, string[]>(StringComparer.Ordinal)
        {
            ["Windows"] = ["Touch ID", "Secure Enclave", "fingerprint", "PIN"],
            ["Mac"] = ["Windows", "TPM", "fingerprint", "PIN"],
            ["Linux"] = ["Windows", "Touch ID", "Secure Enclave", "fingerprint"],
            ["Android"] = ["Windows", "TPM", "Touch ID", "Secure Enclave"],
        }[platform];

        string[] said =
            [wording.Name, wording.Button, wording.Wait, wording.Offer, wording.Registered, wording.Unavailable, wording.Tip];

        foreach (var sentence in said)
        {
            sentence.ShouldNotBeNullOrWhiteSpace();

            foreach (var name in foreign)
            {
                sentence.ShouldNotContain(name, Case.Sensitive, $"{platform}: \"{sentence}\"");
            }
        }

        wording.Button.ShouldBe(wording.Button.ToUpperInvariant(), "every button on these screens is in capitals");
    }

    [Fact]
    public void TheWordingInUse_IsThisMachines()
    {
        var expected = OperatingSystem.IsMacOS() ? DeviceUnlockWording.Mac
            : OperatingSystem.IsLinux() ? DeviceUnlockWording.Linux
            : DeviceUnlockWording.Windows;

        DeviceUnlockWording.ForThisPlatform.ShouldBeSameAs(expected);
    }

    private static DeviceUnlockWording For(string platform) => platform switch
    {
        "Windows" => DeviceUnlockWording.Windows,
        "Mac" => DeviceUnlockWording.Mac,
        "Linux" => DeviceUnlockWording.Linux,
        _ => DeviceUnlockWording.Android,
    };
}