using FluentAssertions;
using Sand.Core;

namespace Sand.Tests;

public sealed class ParticleLibraryLoaderTests
{
    [Fact]
    public void LoadFromDirectory_LoadsCoreDefinitions()
    {
        var library = ParticleLibraryLoader.LoadFromDirectory(GetPartRoot());

        library.Definitions.Should().NotBeEmpty();
        library.GetTypeId("sand").Should().BeGreaterThan((ushort)0);
        library.GetDefinition(library.GetTypeId("water")).Name.Should().NotBeNullOrWhiteSpace();
    }

    [Fact]
    public void LoadFromDirectory_NormalizesIdsAndColors()
    {
        var library = ParticleLibraryLoader.LoadFromDirectory(GetPartRoot());
        var stone = library.GetDefinition(library.GetTypeId("stone"));

        stone.Id.Should().Be("stone");
        stone.Color.R.Should().Be(128);
        stone.Color.G.Should().Be(128);
        stone.Color.B.Should().Be(128);
    }

    private static string GetPartRoot() => Path.Combine(AppContext.BaseDirectory, "Content", "part");
}