using LehrerApp.Core.Services;
using Xunit;

namespace LehrerApp.Tests;

public sealed class AppLockServiceTests
{
    [Fact]
    public void NeueKonfiguration_IstStandardmaessigDeaktiviert()
    {
        using var temp = new TempAppData();
        var service = new AppLockService(temp.Path);

        Assert.False(service.IsEnabled);
        Assert.False(service.HasPassword);
    }

    [Fact]
    public void SetPassword_VerifyPassword_KorrektesPasswortWirdAkzeptiert()
    {
        using var temp = new TempAppData();
        var service = new AppLockService(temp.Path);

        service.SetPassword("geheim123");

        Assert.True(service.HasPassword);
        Assert.True(service.VerifyPassword("geheim123"));
        Assert.False(service.VerifyPassword("falsch"));
    }

    [Fact]
    public void Configure_WirdUeberNeueInstanzHinwegPersistiert()
    {
        using var temp = new TempAppData();
        var first = new AppLockService(temp.Path);
        first.SetPassword("geheim123");
        first.Configure(enabled: true, timeoutMinutes: 15);

        var second = new AppLockService(temp.Path);

        Assert.True(second.IsEnabled);
        Assert.Equal(15, second.TimeoutMinutes);
        Assert.True(second.VerifyPassword("geheim123"));
    }

    [Fact]
    public void VerifyPassword_OhneGesetztesPasswort_GibtFalseZurueck()
    {
        using var temp = new TempAppData();
        var service = new AppLockService(temp.Path);

        Assert.False(service.VerifyPassword("irgendwas"));
    }

    [Fact]
    public void Configure_TimeoutUnterEinerMinute_WirdAufEineMinuteBegrenzt()
    {
        using var temp = new TempAppData();
        var service = new AppLockService(temp.Path);

        service.Configure(enabled: true, timeoutMinutes: 0);

        Assert.Equal(1, service.TimeoutMinutes);
    }

    private sealed class TempAppData : IDisposable
    {
        public string Path { get; } = System.IO.Path.Combine(
            System.IO.Path.GetTempPath(), $"lehrerapp-applock-tests-{Guid.NewGuid():N}");

        public TempAppData() => Directory.CreateDirectory(Path);
        public void Dispose() { if (Directory.Exists(Path)) Directory.Delete(Path, recursive: true); }
    }
}