using Sand.Core;

namespace Sand.App;

internal sealed class CoreSimulationBackend : ISimulationBackend
{
    private readonly SandSimulation _simulation;
    private readonly AppSimulationFrameStats _frameStats = new();

    public CoreSimulationBackend(SandSimulation simulation)
    {
        _simulation = simulation;
    }

    public string BackendName => "dense";
    public SimulationSettings Settings => _simulation.Settings;
    public AppSimulationFrameStats FrameStats
    {
        get
        {
            var source = _simulation.FrameStats;
            _frameStats.Frame = source.Frame;
            _frameStats.ProcessedCells = source.ProcessedCells;
            _frameStats.ParticleCount = source.ParticleCount;
            _frameStats.MinActiveX = source.MinActiveX;
            _frameStats.MinActiveY = source.MinActiveY;
            _frameStats.MaxActiveX = source.MaxActiveX;
            _frameStats.MaxActiveY = source.MaxActiveY;
            _frameStats.LoadedChunkCount = source.LoadedChunkCount;
            _frameStats.ActiveChunkCount = source.ActiveChunkCount;
            _frameStats.DirtyChunkCount = source.DirtyChunkCount;
            _frameStats.SteppedChunkCount = source.SteppedChunkCount;
            _frameStats.SleepingChunkCount = source.SleepingChunkCount;
            _frameStats.FieldPageCount = source.FieldPageCount;
            _frameStats.MoveAttemptCount = source.MoveAttemptCount;
            _frameStats.VerticalMoveAttemptCount = source.VerticalMoveAttemptCount;
            _frameStats.DiagonalMoveAttemptCount = source.DiagonalMoveAttemptCount;
            _frameStats.LateralMoveAttemptCount = source.LateralMoveAttemptCount;
            _frameStats.SuccessfulMoveCount = source.SuccessfulMoveCount;
            _frameStats.SwapAttemptCount = source.SwapAttemptCount;
            _frameStats.StalledMovableCount = source.StalledMovableCount;
            _frameStats.MovementOnlyFastPathCount = source.MovementOnlyFastPathCount;
            _frameStats.FullRuntimeStepCount = source.FullRuntimeStepCount;
            _frameStats.FullRuntimeSolidCount = source.FullRuntimeSolidCount;
            _frameStats.FullRuntimeLiquidCount = source.FullRuntimeLiquidCount;
            _frameStats.FullRuntimeGasCount = source.FullRuntimeGasCount;
            _frameStats.MovedParticleCount = source.MovedParticleCount;
            _frameStats.SwappedParticleCount = source.SwappedParticleCount;
            _frameStats.VisualDirtyPageCount = source.VisualDirtyPageCount;
            _frameStats.FrameBuildBytesTouched = source.FrameBuildBytesTouched;
            _frameStats.ActivationTimeMicroseconds = source.ActivationTimeMicroseconds;
            _frameStats.MovementTimeMicroseconds = source.MovementTimeMicroseconds;
            _frameStats.RuntimeTimeMicroseconds = source.RuntimeTimeMicroseconds;
            _frameStats.FieldDecayTimeMicroseconds = source.FieldDecayTimeMicroseconds;
            _frameStats.RenderTimeMicroseconds = source.RenderTimeMicroseconds;
            return _frameStats;
        }
    }
    public int Frame => _simulation.Frame;
    public int ParticleCount => _simulation.ParticleCount;
    public ReadOnlySpan<byte> BuildRgbaFrame() => _simulation.BuildRgbaFrame();
    public void Step(float dt) => _simulation.Step(dt);
    public void Clear() => _simulation.Clear();
    public void RefreshSettingsState() => _simulation.RefreshSettingsState();
    public void ClearParticleCircle(int centerX, int centerY, int brushRadius) => _simulation.ClearParticleCircle(centerX, centerY, brushRadius);
    public void ClearParticlePourAtPixel(int centerX, int centerY, int brushRadius, int maxParticles, int seed) => _simulation.ClearParticlePourAtPixel(centerX, centerY, brushRadius, maxParticles, seed);
    public void CreateParticleCircle(int centerX, int centerY, int brushRadius, string particleId) => _simulation.CreateParticleCircle(centerX, centerY, brushRadius, particleId);
    public void CreateParticlePourAtPixel(int centerX, int centerY, int brushRadius, string particleId, int maxParticles, int seed) => _simulation.CreateParticlePourAtPixel(centerX, centerY, brushRadius, particleId, maxParticles, seed);
    public void ApplyWindBrushAtPixel(int centerX, int centerY, int brushRadius, float forceX, float forceY) => _simulation.ApplyWindBrushAtPixel(centerX, centerY, brushRadius, forceX, forceY);
    public void ApplyAirBrushAtPixel(int centerX, int centerY, int brushRadius, float forceX, float forceY) => _simulation.ApplyAirBrushAtPixel(centerX, centerY, brushRadius, forceX, forceY);
    public void ApplyGravityBrushAtPixel(int centerX, int centerY, int brushRadius, float strength) => _simulation.ApplyGravityBrushAtPixel(centerX, centerY, brushRadius, strength);
    public void ApplyRepulsorBrushAtPixel(int centerX, int centerY, int brushRadius, float strength) => _simulation.ApplyRepulsorBrushAtPixel(centerX, centerY, brushRadius, strength);
}