#include <stdlib.h>
#include <string.h>

#include "pxl8_bsp.h"
#include "pxl8_macros.h"
#include "pxl8_world.h"

struct pxl8_world {
    pxl8_bsp bsp;
    bool loaded;
    u32 wireframe_color;
};

pxl8_world* pxl8_world_create(void) {
    pxl8_world* world = (pxl8_world*)calloc(1, sizeof(pxl8_world));
    if (!world) {
        pxl8_error("Failed to allocate world");
        return NULL;
    }

    world->loaded = false;
    world->wireframe_color = 15;

    return world;
}

void pxl8_world_destroy(pxl8_world* world) {
    if (!world) return;

    if (world->loaded) {
        pxl8_bsp_destroy(&world->bsp);
    }

    free(world);
}

pxl8_result pxl8_world_load(pxl8_world* world, const char* path) {
    if (!world || !path) return PXL8_ERROR_INVALID_ARGUMENT;

    if (world->loaded) {
        pxl8_bsp_destroy(&world->bsp);
        world->loaded = false;
    }

    memset(&world->bsp, 0, sizeof(pxl8_bsp));

    pxl8_result result = pxl8_bsp_load(path, &world->bsp);
    if (result != PXL8_OK) {
        pxl8_error("Failed to load world: %s", path);
        return result;
    }

    world->loaded = true;
    pxl8_info("Loaded world: %s", path);

    return PXL8_OK;
}

void pxl8_world_render(pxl8_world* world, pxl8_gfx* gfx, pxl8_vec3 camera_pos) {
    if (!world || !gfx || !world->loaded) return;

    pxl8_bsp_render_wireframe(gfx, &world->bsp, camera_pos, world->wireframe_color);
}

void pxl8_world_unload(pxl8_world* world) {
    if (!world || !world->loaded) return;

    pxl8_bsp_destroy(&world->bsp);
    world->loaded = false;
}

bool pxl8_world_is_loaded(const pxl8_world* world) {
    return world && world->loaded;
}