using AcDream.App.Rendering.Vfx;
using AcDream.App.Update;
using AcDream.UI.Abstractions.Input;
using AcDream.UI.Abstractions.Panels.Settings;
using Silk.NET.Input;

namespace AcDream.App.Tests.World;

public sealed class LiveObjectFrameControllerTests
{
    [Theory]
    [InlineData(ParticleRange.Retail, 1f)]
    [InlineData(
        ParticleRange.Extended,
        ParticleVisibilityController.ExtendedRangeMultiplier)]
    public void ParticleRange_NullSettingsUsesConfiguredFallback(
        ParticleRange fallback,
        float expected)
    {
        var source = new SettingsParticleRangeSource(null, fallback);

        Assert.Equal(expected, source.RangeMultiplier);
    }

    [Fact]
    public void ParticleRange_LiveSettingsDraftOverridesFallbackAndUpdatesImmediately()
    {
        SettingsVM settings = CreateSettings();
        var source = new SettingsParticleRangeSource(settings, ParticleRange.Retail);

        settings.SetDisplay(settings.DisplayDraft with { ParticleRange = ParticleRange.Retail });
        Assert.Equal(1f, source.RangeMultiplier);

        settings.SetDisplay(settings.DisplayDraft with { ParticleRange = ParticleRange.Extended });
        Assert.Equal(
            ParticleVisibilityController.ExtendedRangeMultiplier,
            source.RangeMultiplier);
    }

    private static SettingsVM CreateSettings()
    {
        var dispatcher = new InputDispatcher(
            new NullKeyboardSource(),
            new NullMouseSource(),
            new KeyBindings());
        return new SettingsVM(
            new KeyBindings(),
            dispatcher,
            static _ => { },
            DisplaySettings.Default,
            static _ => { },
            AudioSettings.Default,
            static _ => { },
            GameplaySettings.Default,
            static _ => { },
            ChatSettings.Default,
            static _ => { },
            CharacterSettings.Default,
            static _ => { });
    }

    private sealed class NullKeyboardSource : IKeyboardSource
    {
#pragma warning disable CS0067
        public event Action<Key, ModifierMask>? KeyDown;
        public event Action<Key, ModifierMask>? KeyUp;
#pragma warning restore CS0067
        public bool IsHeld(Key key) => false;
        public ModifierMask CurrentModifiers => ModifierMask.None;
    }

    private sealed class NullMouseSource : IMouseSource
    {
#pragma warning disable CS0067
        public event Action<MouseButton, ModifierMask>? MouseDown;
        public event Action<MouseButton, ModifierMask>? MouseUp;
        public event Action<float, float>? MouseMove;
        public event Action<float>? Scroll;
#pragma warning restore CS0067
        public bool IsHeld(MouseButton button) => false;
        public bool WantCaptureMouse => false;
        public bool WantCaptureKeyboard => false;
    }
}