/*
Copyright 2022 - 2022 Stephane Cuillerdier(aka aiekick)

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http:://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissionsand
limitations under the License.
*/

#include <LumoBackend/Graph/Graph.h>
#include <LumoBackend/Graph/Base/BaseNode.h>
#include <LumoBackend/Interfaces/Texture2DInputInterface.h>
#include <LumoBackend/Interfaces/ShaderPassInputInterface.h>
#include <LumoBackend/Interfaces/Texture2DOutputInterface.h>
#include <LumoBackend/Interfaces/ShaderUpdateInterface.h>

class SceneMergerModule;
class SceneMergerNode : public Texture2DInputInterface<0U>,
                        public ShaderPassInputInterface,
                        public Texture2DOutputInterface,
                        public ShaderUpdateInterface,
                        public BaseNode {
public:
    static std::shared_ptr<SceneMergerNode> Create(GaiApi::VulkanCoreWeak vVulkanCore);

private:
    std::shared_ptr<SceneMergerModule> m_SceneMergerModulePtr = nullptr;

public:
    SceneMergerNode();
    virtual ~SceneMergerNode() override;

    // Init / Unit
    bool Init(GaiApi::VulkanCoreWeak vVulkanCore) override;

    // Execute Task
    bool ExecuteAllTime(const uint32_t& vCurrentFrame, vk::CommandBuffer* vCmd = nullptr, BaseNodeState* vBaseNodeState = nullptr) override;

    // Draw Widgets
    bool DrawWidgets(const uint32_t& vCurrentFrame, ImGuiContext* vContextPtr = nullptr, void* vUserDatas = nullptr) override;
    bool DrawOverlays(
        const uint32_t& vCurrentFrame, const ImRect& vRect, ImGuiContext* vContextPtr = nullptr, void* vUserDatas = nullptr) override;
    bool DrawDialogsAndPopups(
        const uint32_t& vCurrentFrame, const ImRect& vMaxRect, ImGuiContext* vContextPtr = nullptr, void* vUserDatas = nullptr) override;
    void DisplayInfosOnTopOfTheNode(BaseNodeState* vBaseNodeState) override;

    // Resize
    void NeedResizeByResizeEvent(ct::ivec2* vNewSize, const uint32_t* vCountColorBuffers) override;

    // Interfaces Setters
    void SetTexture(const uint32_t& vBindingPoint, vk::DescriptorImageInfo* vImageInfo, ct::fvec2* vTextureSize, void* vUserDatas = nullptr) override;
    void SetShaderPasses(const uint32_t& vSlotID, SceneShaderPassWeak vShaderPasses) override;

    // Interfaces Getters
    vk::DescriptorImageInfo* GetDescriptorImageInfo(const uint32_t& vBindingPoint, ct::fvec2* vOutSize = nullptr, void* vUserDatas = nullptr) override;

    // Configuration
    std::string getXml(const std::string& vOffset, const std::string& vUserDatas = "") override;
    bool setFromXml(tinyxml2::XMLElement* vElem, tinyxml2::XMLElement* vParent, const std::string& vUserDatas) override;

    NodeSlotWeak AddPreDefinedInput(const NodeSlot& vNodeSlot) override;
    void BeforeNodeXmlLoading() override;
    void AfterNodeXmlLoading() override;

    // Shader Update
    void UpdateShaders(const std::set<std::string>& vFiles) override;

    // INPUTS UPDATE
    void ReorganizeSlots(const std::vector<uint32_t>& vSlotsToErase);
};
