#include "debug_grid.h"

#include "defines.h"
#include "identifiers/identifier.h"
#include "math/geometry.h"
#include "math/kmath.h"
#include "renderer/renderer_frontend.h"

b8 debug_grid_create (const debug_grid_config *config, debug_grid *out_grid) {
	if (!config || !out_grid) {
		return false;
	}

	kzero_memory(out_grid, sizeof(debug_grid));
	out_grid->name = config->name;
	out_grid->segment_count_dim_0 = config->segment_count_dim_0;
	out_grid->segment_count_dim_1 = config->segment_count_dim_1;
	out_grid->segment_size = config->segment_size;
	out_grid->orientation = config->orientation;
	out_grid->use_third_axis = config->use_third_axis;

	// FIXME: do we need this?
	out_grid->origin = vec3_zero();
	out_grid->id = identifier_create();

	return true;
}

void debug_grid_destroy (debug_grid *grid) {
	debug_grid_unload(grid);

	geometry_destroy(&grid->geometry);
}

b8 debug_grid_initialize (debug_grid *grid) {
	if (!grid) {
		return false;
	}

	grid->geometry = geometry_generate_grid(
		grid->orientation,
		grid->segment_count_dim_0,
		grid->segment_count_dim_1,
		grid->segment_size,
		grid->use_third_axis,
		grid->name);

	return true;
}

b8 debug_grid_load (debug_grid *grid) {
	// Send the geometry off to the renderer to be uploaded to the GPU.
	if (!renderer_geometry_upload(&grid->geometry)) {
		return false;
	}
	return true;
}

b8 debug_grid_unload (debug_grid *grid) {
	renderer_geometry_destroy(&grid->geometry);

	grid->id.uniqueid = INVALID_ID_U64;

	return true;
}

b8 debug_grid_update (debug_grid *grid) {
	return true;
}