/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
#pragma once

#include <AzCore/Component/Component.h>
#include <AzCore/Component/TransformBus.h>
#include <AzFramework/Physics/TriggerBus.h>

#include <LmbrCentral/Scripting/TriggerAreaComponentBus.h>

#include <IAudioSystem.h>

namespace LmbrCentral
{
    /*!
     * AudioAreaEnvironmentComponent
     * This component contains an Entity reference which should link to an Entity
     * that has a TriggerAreaComponent or PhysX Collider with Trigger enabled. That Trigger Area (and shape) will act as the
     * broad-phase trigger.  Once Entities go inside, this component will track their
     * movement until they leave the Trigger Area.
     * The AudioAreaEnvironmentComponent's Entity requires it's own Shape that defines
     * where the Environment is fully applied.  This shape should be placed interior
     * to the Trigger Area.  Entities that are between the two shapes will 'fade'
     * the environment amount based on the Environment fade distance property.
     */
    class AudioAreaEnvironmentComponent
        : public AZ::Component
        , private AZ::TransformNotificationBus::MultiHandler
        , private Physics::TriggerNotificationBus::Handler
#if ENABLE_CRY_PHYSICS
        , private TriggerAreaNotificationBus::Handler
#endif
    {
        friend class EditorAudioAreaEnvironmentComponent;

    public:
        /*!
         * AZ::Component
         */
        AZ_COMPONENT(AudioAreaEnvironmentComponent, "{52300012-FFCD-4559-9479-20F463940320}");
        void Activate() override;
        void Deactivate() override;

        /*!
         * AZ::TransformNotificationBus::MultiHandler
         */
        void OnTransformChanged(const AZ::Transform&, const AZ::Transform&) override;

#if ENABLE_CRY_PHYSICS
        /*!
         * TriggerAreaNotificationBus::Handler
         */
        void OnTriggerAreaEntered(AZ::EntityId enteringEntityId) override;
        void OnTriggerAreaExited(AZ::EntityId exitingEntityId) override;
#endif // ENABLE_CRY_PHYSICS

        void OnTriggerEnter(const Physics::TriggerEvent& triggerEvent) override;
        void OnTriggerExit(const Physics::TriggerEvent& triggerEvent) override;

    protected:
        static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided)
        {
            provided.push_back(AZ_CRC("AudioAreaEnvironmentService", 0x6ba54d6c));
        }

        static void GetDependentServices(AZ::ComponentDescriptor::DependencyArrayType& dependent)
        {
            dependent.push_back(AZ_CRC("AudioPreloadService", 0x20c917d8));
        }

        static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required)
        {
            required.push_back(AZ_CRC("ShapeService", 0xe86aa5fe));
        }

        static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatible)
        {
            incompatible.push_back(AZ_CRC("AudioAreaEnvironmentService", 0x6ba54d6c));
        }

        static void Reflect(AZ::ReflectContext* context);

    private:
        //! Transient data
        Audio::TAudioEnvironmentID m_environmentId;

        //! Serialized data
        AZ::EntityId m_broadPhaseTriggerArea;
        AZStd::string m_environmentName;
        float m_environmentFadeDistance = 1.f;
    };

} // namespace LmbrCentral