using Xunit;
using StellaOps.Policy.Engine.AdvisoryAI;

using StellaOps.TestKit;
namespace StellaOps.Policy.Engine.Tests;

public sealed class AdvisoryAiKnobsServiceTests
{
    [Trait("Category", TestCategories.Unit)]
        [Fact]
    public void Get_ReturnsDefaultsWithHash()
    {
        var service = new AdvisoryAiKnobsService(TimeProvider.System);
        var profile = service.Get();

        Assert.NotEmpty(profile.Knobs);
        Assert.False(string.IsNullOrWhiteSpace(profile.ProfileHash));
    }

    [Trait("Category", TestCategories.Unit)]
        [Fact]
    public void Set_NormalizesOrdering()
    {
        var service = new AdvisoryAiKnobsService(TimeProvider.System);

        var profile = service.Set(new[]
        {
            new AdvisoryAiKnob("Time_Decay_Half_Life_Days", 20m, 1m, 365m, 1m, "decay"),
            new AdvisoryAiKnob("ai_signal_weight", 1.5m, 0m, 2m, 0.1m, "weight")
        });

        Assert.Equal("ai_signal_weight", profile.Knobs[0].Name);
        Assert.Equal("time_decay_half_life_days", profile.Knobs[1].Name);
    }
}