#pragma once

#include <stdio.h>

#include <memory>
#include <iostream>

#if defined(_WIN32)
#include <fcntl.h>
#define NOMINMAX
#include <windows.h>
#endif // _WIN32

#if defined(__linux__) || defined(__APPLE__)
#include <dlfcn.h>
#endif

#define GLFW_INCLUDE_VULKAN
#include "GLFW/glfw3.h"

#include "../src/VkBootstrap.h"

GLFWwindow* create_window_glfw(const char* window_name = "", bool resize = true) {
	glfwInit();
	glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
	if (!resize) glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);

	return glfwCreateWindow(1024, 1024, window_name, NULL, NULL);
}
void destroy_window_glfw(GLFWwindow* window) {
	glfwDestroyWindow(window);
	glfwTerminate();
}
VkSurfaceKHR create_surface_glfw(VkInstance instance, GLFWwindow* window) {
	VkSurfaceKHR surface = VK_NULL_HANDLE;
	VkResult err = glfwCreateWindowSurface(instance, window, NULL, &surface);
	if (err) {
		const char* error_msg;
		int ret = glfwGetError(&error_msg);
		if (ret != 0) {
			std::cout << ret << " ";
			if (error_msg != nullptr) std::cout << error_msg;
			std::cout << "\n";
		}
		surface = VK_NULL_HANDLE;
	}
	return surface;
}

struct VulkanLibrary {
#if defined(__linux__) || defined(__APPLE__)
	void* library;
#elif defined(_WIN32)

	HMODULE library;
#endif

	VulkanLibrary() {
#if defined(__linux__)
		library = dlopen("libvulkan.so.1", RTLD_NOW | RTLD_LOCAL);
		if (!library) library = dlopen("libvulkan.so", RTLD_NOW | RTLD_LOCAL);
#elif defined(__APPLE__)
		library = dlopen("libvulkan.dylib", RTLD_NOW | RTLD_LOCAL);
		if (!library) library = dlopen("libvulkan.1.dylib", RTLD_NOW | RTLD_LOCAL);
#elif defined(_WIN32)
		library = LoadLibrary(TEXT("vulkan-1.dll"));
#else
		assert(false && "Unsupported platform");
#endif
		if (!library) return;
#if defined(__linux__) || defined(__APPLE__)
		vkGetInstanceProcAddr =
		    reinterpret_cast<PFN_vkGetInstanceProcAddr>(dlsym(library, "vkGetInstanceProcAddr"));
#elif defined(_WIN32)
		vkGetInstanceProcAddr =
		    reinterpret_cast<PFN_vkGetInstanceProcAddr>(GetProcAddress(library, "vkGetInstanceProcAddr"));
#endif
	}

	void close() {
#if defined(__linux__) || defined(__APPLE__)
		dlclose(library);
#elif defined(_WIN32)
		FreeLibrary(library);
#endif
		library = 0;
	}

	void init(VkInstance instance) {
		vkGetDeviceProcAddr = (PFN_vkGetDeviceProcAddr)vkGetInstanceProcAddr(instance, "vkGetDeviceProcAddr");
		vkDestroySurfaceKHR = (PFN_vkDestroySurfaceKHR)vkGetInstanceProcAddr(instance, "vkDestroySurfaceKHR");
	}

	void init(VkDevice device) {
		vkCreateRenderPass = (PFN_vkCreateRenderPass)vkGetDeviceProcAddr(device, "vkCreateRenderPass");
		vkCreateShaderModule = (PFN_vkCreateShaderModule)vkGetDeviceProcAddr(device, "vkCreateShaderModule");
		vkCreatePipelineLayout =
		    (PFN_vkCreatePipelineLayout)vkGetDeviceProcAddr(device, "vkCreatePipelineLayout");
		vkCreateGraphicsPipelines =
		    (PFN_vkCreateGraphicsPipelines)vkGetDeviceProcAddr(device, "vkCreateGraphicsPipelines");
		vkDestroyShaderModule = (PFN_vkDestroyShaderModule)vkGetDeviceProcAddr(device, "vkDestroyShaderModule");
		vkCreateFramebuffer = (PFN_vkCreateFramebuffer)vkGetDeviceProcAddr(device, "vkCreateFramebuffer");
		vkCreateCommandPool = (PFN_vkCreateCommandPool)vkGetDeviceProcAddr(device, "vkCreateCommandPool");
		vkAllocateCommandBuffers =
		    (PFN_vkAllocateCommandBuffers)vkGetDeviceProcAddr(device, "vkAllocateCommandBuffers");
		vkBeginCommandBuffer = (PFN_vkBeginCommandBuffer)vkGetDeviceProcAddr(device, "vkBeginCommandBuffer");
		vkEndCommandBuffer = (PFN_vkEndCommandBuffer)vkGetDeviceProcAddr(device, "vkEndCommandBuffer");
		vkCmdSetViewport = (PFN_vkCmdSetViewport)vkGetDeviceProcAddr(device, "vkCmdSetViewport");
		vkCmdSetScissor = (PFN_vkCmdSetScissor)vkGetDeviceProcAddr(device, "vkCmdSetScissor");
		vkCmdBeginRenderPass = (PFN_vkCmdBeginRenderPass)vkGetDeviceProcAddr(device, "vkCmdBeginRenderPass");
		vkCmdEndRenderPass = (PFN_vkCmdEndRenderPass)vkGetDeviceProcAddr(device, "vkCmdEndRenderPass");
		vkCmdBindPipeline = (PFN_vkCmdBindPipeline)vkGetDeviceProcAddr(device, "vkCmdBindPipeline");
		vkCmdDraw = (PFN_vkCmdDraw)vkGetDeviceProcAddr(device, "vkCmdDraw");
		vkCreateSemaphore = (PFN_vkCreateSemaphore)vkGetDeviceProcAddr(device, "vkCreateSemaphore");
		vkCreateFence = (PFN_vkCreateFence)vkGetDeviceProcAddr(device, "vkCreateFence");
		vkDeviceWaitIdle = (PFN_vkDeviceWaitIdle)vkGetDeviceProcAddr(device, "vkDeviceWaitIdle");
		vkDestroyCommandPool = (PFN_vkDestroyCommandPool)vkGetDeviceProcAddr(device, "vkDestroyCommandPool");
		vkDestroyFramebuffer = (PFN_vkDestroyFramebuffer)vkGetDeviceProcAddr(device, "vkDestroyFramebuffer");
		vkWaitForFences = (PFN_vkWaitForFences)vkGetDeviceProcAddr(device, "vkWaitForFences");
		vkAcquireNextImageKHR = (PFN_vkAcquireNextImageKHR)vkGetDeviceProcAddr(device, "vkAcquireNextImageKHR");
		vkResetFences = (PFN_vkResetFences)vkGetDeviceProcAddr(device, "vkResetFences");
		vkQueueSubmit = (PFN_vkQueueSubmit)vkGetDeviceProcAddr(device, "vkQueueSubmit");
		vkQueuePresentKHR = (PFN_vkQueuePresentKHR)vkGetDeviceProcAddr(device, "vkQueuePresentKHR");
		vkDestroySemaphore = (PFN_vkDestroySemaphore)vkGetDeviceProcAddr(device, "vkDestroySemaphore");
		vkDestroyFence = (PFN_vkDestroyFence)vkGetDeviceProcAddr(device, "vkDestroyFence");
		vkDestroyPipeline = (PFN_vkDestroyPipeline)vkGetDeviceProcAddr(device, "vkDestroyPipeline");
		vkDestroyPipelineLayout =
		    (PFN_vkDestroyPipelineLayout)vkGetDeviceProcAddr(device, "vkDestroyPipelineLayout");
        vkDestroyRenderPass = (PFN_vkDestroyRenderPass)vkGetDeviceProcAddr(device, "vkDestroyRenderPass");
    }

	PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = VK_NULL_HANDLE;
	PFN_vkGetDeviceProcAddr vkGetDeviceProcAddr = VK_NULL_HANDLE;

	PFN_vkCreateRenderPass vkCreateRenderPass = VK_NULL_HANDLE;
	PFN_vkCreateShaderModule vkCreateShaderModule = VK_NULL_HANDLE;
	PFN_vkCreatePipelineLayout vkCreatePipelineLayout = VK_NULL_HANDLE;
	PFN_vkCreateGraphicsPipelines vkCreateGraphicsPipelines = VK_NULL_HANDLE;
	PFN_vkDestroyShaderModule vkDestroyShaderModule = VK_NULL_HANDLE;
	PFN_vkCreateFramebuffer vkCreateFramebuffer = VK_NULL_HANDLE;
	PFN_vkCreateCommandPool vkCreateCommandPool = VK_NULL_HANDLE;
	PFN_vkAllocateCommandBuffers vkAllocateCommandBuffers = VK_NULL_HANDLE;
	PFN_vkBeginCommandBuffer vkBeginCommandBuffer = VK_NULL_HANDLE;
	PFN_vkEndCommandBuffer vkEndCommandBuffer = VK_NULL_HANDLE;
	PFN_vkCmdSetViewport vkCmdSetViewport = VK_NULL_HANDLE;
	PFN_vkCmdSetScissor vkCmdSetScissor = VK_NULL_HANDLE;
	PFN_vkCmdBeginRenderPass vkCmdBeginRenderPass = VK_NULL_HANDLE;
	PFN_vkCmdEndRenderPass vkCmdEndRenderPass = VK_NULL_HANDLE;
	PFN_vkCmdBindPipeline vkCmdBindPipeline = VK_NULL_HANDLE;
	PFN_vkCmdDraw vkCmdDraw = VK_NULL_HANDLE;
	PFN_vkCreateSemaphore vkCreateSemaphore = VK_NULL_HANDLE;
	PFN_vkCreateFence vkCreateFence = VK_NULL_HANDLE;
	PFN_vkDeviceWaitIdle vkDeviceWaitIdle = VK_NULL_HANDLE;
	PFN_vkDestroyCommandPool vkDestroyCommandPool = VK_NULL_HANDLE;
	PFN_vkDestroyFramebuffer vkDestroyFramebuffer = VK_NULL_HANDLE;
	PFN_vkWaitForFences vkWaitForFences = VK_NULL_HANDLE;
	PFN_vkAcquireNextImageKHR vkAcquireNextImageKHR = VK_NULL_HANDLE;
	PFN_vkResetFences vkResetFences = VK_NULL_HANDLE;
	PFN_vkQueueSubmit vkQueueSubmit = VK_NULL_HANDLE;
	PFN_vkQueuePresentKHR vkQueuePresentKHR = VK_NULL_HANDLE;
	PFN_vkDestroySemaphore vkDestroySemaphore = VK_NULL_HANDLE;
	PFN_vkDestroyFence vkDestroyFence = VK_NULL_HANDLE;
	PFN_vkDestroyPipeline vkDestroyPipeline = VK_NULL_HANDLE;
	PFN_vkDestroyPipelineLayout vkDestroyPipelineLayout = VK_NULL_HANDLE;
	PFN_vkDestroySurfaceKHR vkDestroySurfaceKHR = VK_NULL_HANDLE;
    PFN_vkDestroyRenderPass vkDestroyRenderPass = VK_NULL_HANDLE;
};