#include "engine.h"
#include "platform.h"
#include <cstdint>
#include <cstdio>
#include <cstdlib>


// CONSTANTS
const unsigned int WINDOW_WIDTH = 1920;
const unsigned int WINDOW_HEIGHT = 1080;
const unsigned int WINDOW_FPS = 30;


// MAIN
int main(int argc, char *argv[])
{
    if (argc != 3)
    {
        fprintf(stderr, "Usage: %s <OBJ> <MTL>\n", argv[0]);
        return EXIT_FAILURE;
    }

    char *objFilename = argv[1];
    char *mtlFilename = argv[2];
    Platform platform = {};

    int result = Platform_Init(platform, WINDOW_WIDTH, WINDOW_HEIGHT);
    platform.framerateMillis = (1000 / WINDOW_FPS);

    if (result == PLATFORM_OK)
    {
        Engine_Buffer buffer = {};
        buffer.buffer = (uint32_t*)platform.surface->pixels;
        buffer.zbuffer = (float*)calloc((size_t)(platform.surface->w * platform.surface->h), sizeof(float));
        buffer.width = platform.surface->w;
        buffer.height = platform.surface->h;

        result = Engine_Init(buffer, objFilename, mtlFilename);

        if (result < 0)
        {
            return EXIT_FAILURE;
        }

        while (true)
        {
            Platform_GetFrameTime(platform);

            result = Platform_CheckForEvents(platform);
            if (result == PLATFORM_QUIT)
            {
                break;
            }

            Platform_ClearWindow(platform);

            Engine_Render(buffer, platform.input);

            Platform_UpdateWindow(platform);

            Platform_SyncToFramerate(platform);
        }

        Engine_Shutdown();

        Platform_Shutdown(platform);
    }
    else
    {
        return EXIT_FAILURE;
    }

    return EXIT_SUCCESS;
}