#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

#include <SDL3/SDL.h>

#include "renderer.hpp"

#include "sim/world.hpp"
#include "sim/aircraft.hpp"
#include "sim/airfield.hpp"
#include "sim/af_spawner.hpp"

static SDL_Window *window;
static SDL_Renderer *sdl_renderer;
static int width, height;

int main(int argc, char *argv[])
{
	if (argc > 2)
	{
		printf("Usage: %s [WID]\n", argv[0]);
		exit(1);
	}

	SDL_Init(SDL_INIT_VIDEO);

	if (argc == 2)
	{
		int wid = 0;
		sscanf(argv[1], "%d", &wid);

		SDL_PropertiesID props = SDL_CreateProperties();
		SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_X11_WINDOW_NUMBER, wid);
		window = SDL_CreateWindowWithProperties(props);
	}
	else
	{
		window = SDL_CreateWindow("dxdesktop", 1024, 1024, SDL_WINDOW_OPENGL);
	}

	sdl_renderer = SDL_CreateRenderer(window, NULL);

    SDL_GetWindowSize(window, &width, &height);
	dxd::Renderer renderer = dxd::Renderer(sdl_renderer, width, height);

	// World init
	dxd::sim::World world = dxd::sim::World();
	world.add_obj(new dxd::sim::AFSpawner());

	SDL_Event event;
	bool running = true;

	while (running) {
        while (SDL_PollEvent(&event)) {
            if (event.type == SDL_EVENT_QUIT) running = false;
			if (event.type == SDL_EVENT_KEY_DOWN) {
				if (event.key.key == SDLK_ESCAPE) running = false;
			}
		}

		const bool *key_states = SDL_GetKeyboardState(NULL);

		const float move_spd = 1.0f * renderer.get_zoom();
		const float zoom_spd = 0.5f;

		if (key_states[SDL_SCANCODE_W]) renderer.move_camera(+vec2_unity * move_spd * (1.0f / 60.0f));
		if (key_states[SDL_SCANCODE_S]) renderer.move_camera(-vec2_unity * move_spd * (1.0f / 60.0f));
		if (key_states[SDL_SCANCODE_A]) renderer.move_camera(-vec2_unitx * move_spd * (1.0f / 60.0f));
		if (key_states[SDL_SCANCODE_D]) renderer.move_camera(+vec2_unitx * move_spd * (1.0f / 60.0f));
		if (key_states[SDL_SCANCODE_Q]) renderer.zoom_camera(+zoom_spd * (1.0f / 60.0f));
		if (key_states[SDL_SCANCODE_E]) renderer.zoom_camera(-zoom_spd * (1.0f / 60.0f));

		// Clear
		renderer.color(0, 0, 0);
		SDL_RenderClear(sdl_renderer);

		// World draw
		world.draw(&renderer);
		world.tick(1.0f / 60.0f);

		// World axis
		renderer.color(32, 32, 32);
		renderer.line(-vec2_unity * 2000, vec2_unity * 2000);
		renderer.line(-vec2_unitx * 2000, vec2_unitx * 2000);

		// Scale and position
		vec2 center = renderer.get_camera_pos();
		float zoom = 100.0f/renderer.get_zoom();
		renderer.color(128, 128, 255);
		renderer.dbg_txt(0, 0, "(%0.1f, %0.1f) @%0.2f", center.x, center.y, zoom);

		SDL_RenderPresent(sdl_renderer);
		SDL_Delay(1000 / 60);
	}
}