// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.

#pragma once

#include "Engine/Core/Config/Settings.h"
#include "Engine/Serialization/Serialization.h"
#include "Engine/Graphics/Enums.h"
#include "Engine/Graphics/PostProcessSettings.h"

/// <summary>
/// Graphics rendering settings.
/// </summary>
API_CLASS(sealed, Namespace="FlaxEditor.Content.Settings", NoConstructor) class FLAXENGINE_API GraphicsSettings : public SettingsBase
{
    API_AUTO_SERIALIZATION();
    DECLARE_SCRIPTING_TYPE_MINIMAL(GraphicsSettings);
public:
    /// <summary>
    /// Enables rendering synchronization with the refresh rate of the display device to avoid "tearing" artifacts.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(20), DefaultValue(false), EditorDisplay(\"General\", \"Use V-Sync\")")
    bool UseVSync = false;

    /// <summary>
    /// Anti Aliasing quality setting.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1000), DefaultValue(Quality.Medium), EditorDisplay(\"Quality\", \"AA Quality\")")
    Quality AAQuality = Quality::Medium;

    /// <summary>
    /// Screen Space Reflections quality setting.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1100), DefaultValue(Quality.Medium), EditorDisplay(\"Quality\", \"SSR Quality\")")
    Quality SSRQuality = Quality::Medium;

    /// <summary>
    /// Screen Space Ambient Occlusion quality setting.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1200), DefaultValue(Quality.Medium), EditorDisplay(\"Quality\", \"SSAO Quality\")")
    Quality SSAOQuality = Quality::Medium;

    /// <summary>
    /// Volumetric Fog quality setting.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1250), DefaultValue(Quality.High), EditorDisplay(\"Quality\")")
    Quality VolumetricFogQuality = Quality::High;

    /// <summary>
    /// The shadows quality.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1300), DefaultValue(Quality.Medium), EditorDisplay(\"Quality\")")
    Quality ShadowsQuality = Quality::Medium;

    /// <summary>
    /// The shadow maps quality (textures resolution).
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1310), DefaultValue(Quality.Medium), EditorDisplay(\"Quality\")")
    Quality ShadowMapsQuality = Quality::Medium;

    /// <summary>
    /// Enables cascades splits blending for directional light shadows.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(1320), DefaultValue(false), EditorDisplay(\"Quality\", \"Allow CSM Blending\")")
    bool AllowCSMBlending = false;

    /// <summary>
    /// Default probes cubemap resolution.
    /// </summary>
    API_ENUM() enum class DefaultProbeResolutions
    {
        _64 = 64,
        _128 = 128,
        _256 = 256,
        _512 = 512,
        _1024 = 1024,
        _2048 = 2048,
        _4096 = 4096,
    };
    API_FIELD(Attributes = "EditorOrder(1500), DefaultValue(DefaultProbeResolutions._512), EditorDisplay(\"Quality\", \"Default Probe Resolution\")")
    DefaultProbeResolutions DefaultProbeResolution = DefaultProbeResolutions::_512;

    /// <summary>
    /// If checked, enables Global SDF rendering. This can be used in materials, shaders, and particles.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(2000), EditorDisplay(\"Global SDF\")")
    bool EnableGlobalSDF = false;

    /// <summary>
    /// The Global SDF quality. Controls the volume texture resolution and amount of cascades to use.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(2005), DefaultValue(Quality.High), EditorDisplay(\"Global SDF\")")
    Quality GlobalSDFQuality = Quality::High;

#if USE_EDITOR
    /// <summary>
    /// If checked, the 'Generate SDF' option will be checked on model import options by default. Use it if your project uses Global SDF (eg. for Global Illumination or particles).
    /// </summary>
    API_FIELD(Attributes="EditorOrder(2010), EditorDisplay(\"Global SDF\")")
    bool GenerateSDFOnModelImport = false;
#endif

    /// <summary>
    /// The Global Illumination quality. Controls the quality of the GI effect.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(2100), DefaultValue(Quality.High), EditorDisplay(\"Global Illumination\")")
    Quality GIQuality = Quality::High;

    /// <summary>
    /// The Global Illumination probes spacing distance (in world units). Defines the quality of the GI resolution. Adjust to 200-500 to improve performance and lower frequency GI data.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(2120), Limit(50, 1000), EditorDisplay(\"Global Illumination\")")
    float GIProbesSpacing = 100;

    /// <summary>
    /// The Global Surface Atlas resolution. Adjust it if atlas `flickers` due to overflow (eg. to 4096).
    /// </summary>
    API_FIELD(Attributes="EditorOrder(2130), Limit(256, 8192), EditorDisplay(\"Global Illumination\")")
    int32 GlobalSurfaceAtlasResolution = 2048;

    /// <summary>
    /// The default Post Process settings. Can be overriden by PostFxVolume on a level locally, per camera or for a whole map.
    /// </summary>
    API_FIELD(Attributes="EditorOrder(10000), EditorDisplay(\"Post Process Settings\", EditorDisplayAttribute.InlineStyle)")
    PostProcessSettings PostProcessSettings;

public:
    /// <summary>
    /// Gets the instance of the settings asset (default value if missing). Object returned by this method is always loaded with valid data to use.
    /// </summary>
    static GraphicsSettings* Get();

    // [SettingsBase]
    void Apply() override;
};