#include <stdio.h>
#include <stdbool.h>
#include <SDL3/SDL.h>

#define STB_IMAGE_IMPLEMENTATION 1
#include <stb_image.h>

#include "core/core.h"
#include "core/types.h"
#include "game/npc.h"
#include "os/core.h"

#include "vulkan/core.h"
#include "draw/core.h"

#include "game/core.h"

#include "game/impl/world.c"
#include "game/impl/npc.c"
#include "game/testnavmesh.h"

int main(int argc, char **argv)
{
	(void)argc;
	(void)argv;

	if (!SDL_Init(SDL_INIT_VIDEO))
	{
		printf("[Error] :: Failed to initialise SDL3 (%s)\n", SDL_GetError());
		return 1;
	}

	SDL_Window *window = SDL_CreateWindow("Ludum", 1280, 720, SDL_WINDOW_HIGH_PIXEL_DENSITY);
	if (!window)
	{
		printf("[Error] :: Failed to create window (%s)\n", SDL_GetError());
		return 1;
	}

	Vk_Setup(window);

	G_State *game = 0;
	{
		M_Arena *arena = M_ArenaAlloc(GB(64), .initial = MB(4));
		game = M_ArenaPush(arena, G_State);

		game->arena = arena;

		G_ImagesLoad(game);
		G_PipelinesLoad(game);

		G_Camera *camera = &game->camera;

		camera->x = V3F(1, 0, 0);
		camera->y = V3F(0, 1, 0);
		camera->z = V3F(0, 0, 1);
		camera->p = V3F(0, 0, 48);

		camera->fov = 60.0f;

		camera->nearp = 0.01f;
		camera->farp = 1000.0f;

		game->draw.camera = camera;
	}

	Vk_Buffer rbo = {0};
	rbo.usage = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
	rbo.size = KB(4);
	rbo.host_visible = true;

	Vk_BufferCreate(&rbo);

	bool running = true;
	World world = {
		.npcCount = 2,
		.npcs = {
			{.collision = {{10, 10}, {10, 10}},
			 .name = S("Matt"),
			 .mode = NPC_ACTION_WAITING,
			 .waitTime = 0,
			 .maxWaitTime = 5,
			 .currentNavNode = 87},
			{.collision = {{15, 15}, {10, 10}},
			 .name = S("James"),
			 .mode = NPC_ACTION_WAITING,
			 .waitTime = 0,
			 .maxWaitTime = 10,
			 .currentNavNode = 0}},
		.navMesh = &TestNavMesh,
		.npcPOI = {100},
		.player = {.pos = {0, 0}}};

	printf("%zu size in bytes\n", sizeof(TestNavMesh));

	while (running)
	{
		SDL_Event e;
		while (SDL_PollEvent(&e))
		{
			if (e.type == SDL_EVENT_QUIT)
			{
				running = false;
			}
			ProcessEvents(&e, &world);
		}
		UpdateWorld(1.0 / 60.0, &world);

		int w, h;
		SDL_GetWindowSizeInPixels(window, &w, &h);

		game->draw.window_width = w;
		game->draw.window_height = h;

		G_CalulateCamera(&game->camera, (F32)w / (F32)h);

		Vk_Frame *frame = Vk_FrameBegin(window);
		VkCommandBuffer cmd = frame->cmd;

		VkClearValue clear_colour;
		clear_colour.color.float32[0] = 1.0f;
		clear_colour.color.float32[1] = 0.0f;
		clear_colour.color.float32[2] = 0.0f;
		clear_colour.color.float32[3] = 1.0f;

		VkRenderingAttachmentInfo colour_attachment = {0};
		colour_attachment.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO;
		colour_attachment.imageView = vk.swapchain.views[frame->image];
		colour_attachment.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
		colour_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
		colour_attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
		colour_attachment.clearValue = clear_colour;

		VkRenderingInfo rendering_info = {0};
		rendering_info.sType = VK_STRUCTURE_TYPE_RENDERING_INFO;
		rendering_info.renderArea = (VkRect2D){0, 0, w, h};
		rendering_info.layerCount = 1;
		rendering_info.colorAttachmentCount = 1;
		rendering_info.pColorAttachments = &colour_attachment;

		vk.CmdBeginRendering(cmd, &rendering_info);

		D_Begin(&game->draw, frame, D_MAX_RECTS);

		D_Rect(&game->draw, 0.0f, 0.0f, .texture = 1);
		D_Rect(&game->draw, -8.0f, 0.0f, .texture = 2, .scale = 2.0f);
		D_Rect(&game->draw, 6.0f, 0.0f, .texture = 3);

		D_End(&game->draw, frame);

		vk.CmdEndRendering(cmd);

		Vk_FrameEnd();
	}

	SDL_DestroyWindow(window);
	SDL_Quit();

	return 0;
}

#include "core/core.c"
#include "os/core.c"
#include "vulkan/core.c"
#include "draw/core.c"
#include "game/core.c"