using SpdUp.Models;

namespace SpdUp.Tests;

/// <summary>
/// Tests for the model classes.
/// </summary>
public class ModelTests
{
    // ── SystemMetrics ────────────────────────────────────────

    [Fact]
    public void SystemMetrics_RamUsagePercent_CalculatesCorrectly()
    {
        var m = new SystemMetrics { RamUsageMB = 8000, RamTotalMB = 16000 };
        Assert.Equal(50f, m.RamUsagePercent);
    }

    [Fact]
    public void SystemMetrics_RamUsagePercent_ZeroTotal_ReturnsZero()
    {
        var m = new SystemMetrics { RamUsageMB = 100, RamTotalMB = 0 };
        Assert.Equal(0f, m.RamUsagePercent);
    }

    [Fact]
    public void SystemMetrics_RamUsagePercent_FullRam()
    {
        var m = new SystemMetrics { RamUsageMB = 16000, RamTotalMB = 16000 };
        Assert.Equal(100f, m.RamUsagePercent);
    }

    [Fact]
    public void SystemMetrics_DefaultTimestamp_IsNow()
    {
        var before = DateTime.Now.AddSeconds(-1);
        var m = new SystemMetrics();
        var after = DateTime.Now.AddSeconds(1);

        Assert.InRange(m.Timestamp, before, after);
    }

    // ── GameEntry ────────────────────────────────────────────

    [Fact]
    public void GameEntry_ProcessNameFromPath_ExtractsFileName()
    {
        var result = GameEntry.ProcessNameFromPath(@"C:\Games\Cyberpunk2077\bin\Cyberpunk2077.exe");
        Assert.Equal("Cyberpunk2077", result);
    }

    [Fact]
    public void GameEntry_ProcessNameFromPath_HandlesForwardSlashes()
    {
        var result = GameEntry.ProcessNameFromPath("C:/Games/Game.exe");
        Assert.Equal("Game", result);
    }

    [Fact]
    public void GameEntry_ProcessNameFromPath_JustFileName()
    {
        var result = GameEntry.ProcessNameFromPath("myapp.exe");
        Assert.Equal("myapp", result);
    }

    [Fact]
    public void GameEntry_DefaultValues()
    {
        var g = new GameEntry();
        Assert.Equal(string.Empty, g.Name);
        Assert.Equal(string.Empty, g.ExecutablePath);
        Assert.Equal("Manual", g.LauncherSource);
        Assert.True(g.AutoBoost);
        Assert.Null(g.IconPath);
    }

    [Fact]
    public void BoostProfile_DefaultValues()
    {
        var p = new BoostProfile();
        Assert.True(p.CleanRam);
        Assert.True(p.SetHighPriority);
        Assert.True(p.ReduceTimerResolution);
        Assert.True(p.StopServices);
        Assert.False(p.OptimizeNetwork);
    }

    // ── ProcessEntry ─────────────────────────────────────────

    [Fact]
    public void ProcessEntry_Properties()
    {
        var p = new ProcessEntry
        {
            Pid = 1234,
            Name = "chrome",
            WindowTitle = "Google Chrome",
            CpuPercent = 12.5f,
            MemoryMB = 350f,
            PriorityClass = "High",
            IsSystem = false
        };

        Assert.Equal(1234, p.Pid);
        Assert.Equal("chrome", p.Name);
        Assert.Equal("Google Chrome", p.WindowTitle);
        Assert.Equal(12.5f, p.CpuPercent);
        Assert.Equal(350f, p.MemoryMB);
        Assert.Equal("High", p.PriorityClass);
        Assert.False(p.IsSystem);
    }

    [Fact]
    public void ProcessEntry_DefaultPriority_IsNormal()
    {
        var p = new ProcessEntry { Pid = 1, Name = "test" };
        Assert.Equal("Normal", p.PriorityClass);
    }

    // ── ServiceEntry ─────────────────────────────────────────

    [Fact]
    public void ServiceEntry_DefaultStatus_IsUnknown()
    {
        var s = new ServiceEntry();
        Assert.Equal("Unknown", s.Status);
        Assert.False(s.WasRunningBeforeBoost);
    }

    [Fact]
    public void ServiceEntry_Properties()
    {
        var s = new ServiceEntry
        {
            ServiceName = "WSearch",
            DisplayName = "Windows Search",
            Status = "Running",
            WasRunningBeforeBoost = true,
            Description = "Full-text search"
        };

        Assert.Equal("WSearch", s.ServiceName);
        Assert.Equal("Windows Search", s.DisplayName);
        Assert.Equal("Running", s.Status);
        Assert.True(s.WasRunningBeforeBoost);
    }

    // ── AppSettings ──────────────────────────────────────────

    [Fact]
    public void AppSettings_DefaultValues()
    {
        var s = new AppSettings();
        Assert.True(s.MinimizeToTray);
        Assert.False(s.StartWithWindows);
        Assert.True(s.AutoDetectGames);
        Assert.True(s.AutoBoostOnGameLaunch);
        Assert.False(s.ShowWidget);
        Assert.Equal("8.8.8.8", s.PingTarget);
        Assert.Equal("1.1.1.1", s.PreferredDns);
        Assert.Equal(1000, s.MonitoringIntervalMs);
        Assert.Contains("SysMain", s.ServicesToStop);
        Assert.Contains("WSearch", s.ServicesToStop);
    }

    [Fact]
    public void AppSettings_WidgetDefaults()
    {
        var s = new AppSettings();
        Assert.True(s.WidgetCompactMode);
        Assert.Equal(100, s.WidgetLeft);
        Assert.Equal(100, s.WidgetTop);
        Assert.Equal(0.85, s.WidgetOpacity);
        Assert.Equal(1000, s.WidgetUpdateIntervalMs);
        Assert.False(s.WidgetClickThrough);
    }

    // ── ShaderCleanResult ────────────────────────────────────

    [Fact]
    public void ShaderCleanResult_MBFreed_Calculation()
    {
        var r = new SpdUp.Services.ShaderCleanResult(10, 10_485_760); // 10 MB
        Assert.Equal(10.0, r.MBFreed, 1);
    }

    [Fact]
    public void ShaderCleanResult_ZeroBytes()
    {
        var r = new SpdUp.Services.ShaderCleanResult(0, 0);
        Assert.Equal(0.0, r.MBFreed);
        Assert.Equal(0, r.FilesDeleted);
    }

    // ── RamCleanupResult ─────────────────────────────────────

    [Fact]
    public void RamCleanupResult_RecordWithSyntax()
    {
        var r = new SpdUp.Services.RamCleanupResult(50, 5, 0);
        var r2 = r with { StandbyPurged = 1 };

        Assert.Equal(50, r2.TrimmedCount);
        Assert.Equal(5, r2.FailedCount);
        Assert.Equal(1, r2.StandbyPurged);
    }

    // ── BoostResult ──────────────────────────────────────────

    [Fact]
    public void BoostResult_Properties()
    {
        var r = new SpdUp.Services.BoostResult(true, "Boost activated");
        Assert.True(r.Success);
        Assert.Equal("Boost activated", r.Message);
    }

    [Fact]
    public void BoostResult_Failure()
    {
        var r = new SpdUp.Services.BoostResult(false, "Error occurred");
        Assert.False(r.Success);
    }
}