/*
 * Copyright (c) Contributors to the Open 3D Engine Project.
 * For complete copyright and license terms please see the LICENSE at the root of this distribution.
 *
 * SPDX-License-Identifier: Apache-2.0 OR MIT
 *
 */

#include <AzCore/RTTI/BehaviorContext.h>
#include <PostProcess/ExposureControl/EditorExposureControlComponent.h>

namespace AZ
{
    namespace Render
    {
        void EditorExposureControlComponent::Reflect(AZ::ReflectContext* context)
        {
            BaseClass::Reflect(context);

            if (AZ::SerializeContext* serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
            {
                serializeContext->Class<EditorExposureControlComponent, BaseClass>()
                    ->Version(1);

                if (AZ::EditContext* editContext = serializeContext->GetEditContext())
                {
                    editContext->Class<EditorExposureControlComponent>(
                        "Exposure Control", "Exposure component control exposure value for rendered scene.")
                        ->ClassElement(Edit::ClassElements::EditorData, "")
                        ->Attribute(Edit::Attributes::Category, "Graphics/PostFX")
                        ->Attribute(AZ::Edit::Attributes::Icon, "Icons/Components/Component_Placeholder.svg") // [GFX TODO ATOM-2672][PostFX] need to create icons for PostProcessing.
                        ->Attribute(AZ::Edit::Attributes::ViewportIcon, "Icons/Components/Viewport/Component_Placeholder.svg") // [GFX TODO ATOM-2672][PostFX] need to create icons for PostProcessing.
                        ->Attribute(Edit::Attributes::AppearsInAddComponentMenu, AZ_CRC_CE("Game"))
                        ->Attribute(Edit::Attributes::AutoExpand, true)
                        ->Attribute(Edit::Attributes::HelpPageURL, "https://www.o3de.org/docs/user-guide/components/reference/atom/exposure-control/") // [TODO ATOM-2672][PostFX] need create page for PostProcessing.
                        ;

                    editContext->Class<ExposureControlComponentController>(
                        "ExposureControlComponentController", "")
                        ->ClassElement(AZ::Edit::ClassElements::EditorData, "")
                        ->Attribute(AZ::Edit::Attributes::AutoExpand, true)
                        ->DataElement(AZ::Edit::UIHandlers::Default, &ExposureControlComponentController::m_configuration, "Configuration", "")
                        ->Attribute(AZ::Edit::Attributes::Visibility, AZ::Edit::PropertyVisibility::ShowChildrenOnly)
                        ;

                    editContext->Class<ExposureControlComponentConfig>("ExposureControlComponentConfig", "")
                        ->DataElement(Edit::UIHandlers::CheckBox,
                            &ExposureControlComponentConfig::m_enabled,
                            "Enable",
                            "Enable exposure control.")
                        ->Attribute(Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->ClassElement(Edit::ClassElements::EditorData, "")
                        ->DataElement(Edit::UIHandlers::ComboBox,
                            &ExposureControlComponentConfig::m_exposureControlType,
                            "Control Type",
                            "How to control a exposure value.")
                        ->EnumAttribute(AZ::Render::ExposureControl::ExposureControlType::ManualOnly, "Manual Only")
                        ->EnumAttribute(AZ::Render::ExposureControl::ExposureControlType::EyeAdaptation, "Eye Adaptation")
                        ->Attribute(Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->Attribute(Edit::Attributes::ReadOnly, &ExposureControlComponentConfig::ArePropertiesReadOnly)

                        ->DataElement(AZ::Edit::UIHandlers::Slider, &ExposureControlComponentConfig::m_manualCompensationValue, "Manual Compensation", "Manual exposure compensation value.")
                        ->Attribute(AZ::Edit::Attributes::Min, -16.0f)
                        ->Attribute(AZ::Edit::Attributes::Max, 16.0f)
                        ->Attribute(AZ::Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->Attribute(Edit::Attributes::ReadOnly, &ExposureControlComponentConfig::ArePropertiesReadOnly)

                        ->ClassElement(AZ::Edit::ClassElements::Group, "Eye Adaptation")
                        ->Attribute(Edit::Attributes::Visibility, &ExposureControlComponentConfig::IsEyeAdaptation)
                        ->Attribute(AZ::Edit::Attributes::AutoExpand, true)

                        ->DataElement(AZ::Edit::UIHandlers::Slider, &ExposureControlComponentConfig::m_autoExposureMin, "Minimum Exposure", "Minimum exposure value for the auto exposure.")
                        ->Attribute(AZ::Edit::Attributes::Min, -16.0f)
                        ->Attribute(AZ::Edit::Attributes::Max, 16.0f)
                        ->Attribute(AZ::Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->Attribute(Edit::Attributes::ReadOnly, &ExposureControlComponentConfig::ArePropertiesReadOnly)

                        ->DataElement(AZ::Edit::UIHandlers::Slider, &ExposureControlComponentConfig::m_autoExposureMax, "Maximum Exposure", "Maximum exposure value for the auto exposure.")
                        ->Attribute(AZ::Edit::Attributes::Min, -16.0f)
                        ->Attribute(AZ::Edit::Attributes::Max, 16.0f)
                        ->Attribute(AZ::Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->Attribute(Edit::Attributes::ReadOnly, &ExposureControlComponentConfig::ArePropertiesReadOnly)

                        ->DataElement(AZ::Edit::UIHandlers::Slider, &ExposureControlComponentConfig::m_autoExposureSpeedUp, "Speed Up", "The speed at which auto exposure adapts to bright scenes.")
                        ->Attribute(AZ::Edit::Attributes::Min, 0.01)
                        ->Attribute(AZ::Edit::Attributes::Max, 10.0f)
                        ->Attribute(AZ::Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->Attribute(Edit::Attributes::ReadOnly, &ExposureControlComponentConfig::ArePropertiesReadOnly)

                        ->DataElement(AZ::Edit::UIHandlers::Slider, &ExposureControlComponentConfig::m_autoExposureSpeedDown, "Speed Down", "The speed at which auto exposure adapts to dark scenes.")
                        ->Attribute(AZ::Edit::Attributes::Min, 0.01)
                        ->Attribute(AZ::Edit::Attributes::Max, 10.0f)
                        ->Attribute(AZ::Edit::Attributes::ChangeNotify, Edit::PropertyRefreshLevels::ValuesOnly)
                        ->Attribute(Edit::Attributes::ReadOnly, &ExposureControlComponentConfig::ArePropertiesReadOnly)

                        ->DataElement(Edit::UIHandlers::CheckBox, &ExposureControlComponentConfig::m_heatmapEnabled, "Enable Heatmap", "Areas below minimum exposure will be highlighted in blue. Areas above in red.")
                        // Overrides
                        ->ClassElement(AZ::Edit::ClassElements::Group, "Overrides")
                        ->Attribute(AZ::Edit::Attributes::AutoExpand, false)
                        // Auto-gen editor context settings for overrides
#define EDITOR_CLASS ExposureControlComponentConfig
#include <Atom/Feature/ParamMacros/StartOverrideEditorContext.inl>
#include <Atom/Feature/PostProcess/ExposureControl/ExposureControlParams.inl>
#include <Atom/Feature/ParamMacros/EndParams.inl>
#undef EDITOR_CLASS
                            ;
                }
            }

            if (auto behaviorContext = azrtti_cast<BehaviorContext*>(context))
            {
                behaviorContext->Class<EditorExposureControlComponent>()->RequestBus("ExposureControlRequestBus");

                behaviorContext->ConstantProperty("EditorExposureControlComponentTypeId", BehaviorConstant(Uuid(EditorExposureControlComponentTypeId)))
                    ->Attribute(AZ::Script::Attributes::Module, "render")
                    ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Automation);
            }
        }

        EditorExposureControlComponent::EditorExposureControlComponent(const ExposureControlComponentConfig& config)
            : BaseClass(config)
        {
        }

        u32 EditorExposureControlComponent::OnConfigurationChanged()
        {
            m_controller.OnConfigChanged();
            return Edit::PropertyRefreshLevels::AttributesAndValues;
        }
    }
}