namespace XCEngine
{
    public sealed class RenderingData
    {
        internal RenderingData(CameraFrameStage stage)
            : this(
                stage,
                CameraData.Default,
                LightingData.Default,
                ShadowData.Default,
                EnvironmentData.Default,
                FinalColorData.Default,
                StageColorData.Default)
        {
        }

        internal RenderingData(ScriptableRenderContext context)
            : this(
                context != null
                    ? context.stage
                    : CameraFrameStage.MainScene,
                context != null
                    ? context.cameraData
                    : CameraData.Default,
                context != null
                    ? context.lightingData
                    : LightingData.Default,
                context != null
                    ? context.shadowData
                    : ShadowData.Default,
                context != null
                    ? context.environmentData
                    : EnvironmentData.Default,
                context != null
                    ? context.finalColorData
                    : FinalColorData.Default,
                context != null
                    ? context.stageColorData
                    : StageColorData.Default)
        {
        }

        private RenderingData(
            CameraFrameStage stage,
            CameraData cameraData,
            LightingData lightingData,
            ShadowData shadowData,
            EnvironmentData environmentData,
            FinalColorData finalColorData,
            StageColorData stageColorData)
        {
            this.stage = stage;
            this.cameraData = cameraData ?? CameraData.Default;
            this.lightingData =
                lightingData ?? LightingData.Default;
            this.shadowData =
                shadowData ?? ShadowData.Default;
            this.environmentData =
                environmentData ?? EnvironmentData.Default;
            this.finalColorData =
                finalColorData ?? FinalColorData.Default;
            this.stageColorData =
                stageColorData ?? StageColorData.Default;
        }

        public CameraFrameStage stage { get; }

        public CameraData cameraData { get; }

        public LightingData lightingData { get; }

        public ShadowData shadowData { get; }

        public EnvironmentData environmentData { get; }

        public FinalColorData finalColorData { get; }

        public StageColorData stageColorData { get; }

        public bool isMainSceneStage =>
            stage == CameraFrameStage.MainScene;

        public bool isPostProcessStage =>
            stage == CameraFrameStage.PostProcess;

        public bool isFinalOutputStage =>
            stage == CameraFrameStage.FinalOutput;
    }
}