#pragma once

#include <vulkan/vulkan.h>

struct RenderTarget {
    VkSurfaceKHR surface = nullptr;
    VkSwapchainKHR swapchain = nullptr;
    
    VkExtent2D extent = {};
    uint32_t numImages = 0;
    
    VkImage* images = nullptr;
    VkImageView* imageViews = nullptr;
    VkFramebuffer* framebuffers = nullptr;
    
    VkCommandBuffer* commandBuffers = nullptr;
    
    VkSemaphore imageAvailableSemaphore = nullptr;
    VkSemaphore renderFinishedSemaphore = nullptr;
    VkFence* fences = nullptr;
};

class Renderer {
public:
    Renderer();
    ~Renderer();
    
    void render(RenderTarget* target);
    
    RenderTarget* createSurfaceRenderTarget(VkSurfaceKHR surface, RenderTarget* oldRenderTarget = nullptr);
    void destroyRenderTarget(RenderTarget* target);
    
    VkInstance getInstance() const {
        return instance_;
    }
    
private:
    void createInstance();
#ifdef DEBUG
    void createDebugMessenger();
#endif
    void createLogicalDevice();
    void createCommandPool();
    void createPresentationRenderPass();
    
    VkInstance instance_ = nullptr;
    
#ifdef DEBUG
    bool enableDebug = false;
    
    PFN_vkCreateDebugUtilsMessengerEXT createMessenger_ = nullptr;
    PFN_vkDestroyDebugUtilsMessengerEXT destroyMessenger_ = nullptr;
    
    VkDebugUtilsMessengerEXT messenger_ = nullptr;
#endif
    
    VkPhysicalDevice physicalDevice_ = nullptr;
    VkDevice device_ = nullptr;

    struct {
        uint32_t graphics = 0, presentation = 0;
    } queueIndices;

    VkQueue graphicsQueue_ = nullptr;
    
    VkCommandPool commandPool_ = nullptr;
    
    VkRenderPass presentationRenderPass_ = nullptr;
};