#include "hook.h"
#include "conf.h"
#include "level.h"
#include "player.h"
#include "tools.h"
#include <gint/display.h>
#include <stddef.h>
#include <stdlib.h>

static struct Hook_table hook_table = {.hooks = NULL};
static void hook_table_free(void);

void
hook_table_init(void)
{
	hook_table_free();

	hook_table.n = level_count(HOOK_T);
	hook_table.hooks = malloc(hook_table.n * sizeof(struct Hook));

	for (int i = 0; i < hook_table.n; ++i) {
		hook_table.hooks[i].pos = level_search_s(HOOK_T, i + 1);
		hook_table.hooks[i].pos.x =
		    hook_table.hooks[i].pos.x * TILE_S + TILE_S / 2;
		hook_table.hooks[i].pos.y =
		    hook_table.hooks[i].pos.y * TILE_S + TILE_S / 2;
	}
	/*hook_table.hooks[0].pos = level_search_s(HOOK_T, 1);*/
}

void
hook_table_free(void)
{
	if (hook_table.hooks != NULL) {
		hook_table.hooks = NULL;
	}
}

int
hook_nb(void)
{
	return hook_table.n;
}

struct Vec2
hook_closest(struct Vec2 *pos)
{
	/* search the closest hook */
	struct Vec2 shortest = {0, 0};
	if (hook_table.n) {
		shortest = hook_table.hooks[0].pos;
		float sh_dist = length(&shortest, pos);
		for (int i = 0; i < hook_table.n; ++i) {
			struct Hook h = hook_table.hooks[i];
			const float dist = length(&h.pos, pos);
			if (dist < sh_dist) {
				shortest = h.pos;
				sh_dist = dist;
			}
		}
	}
	shortest = (struct Vec2){shortest.x, shortest.y};
	return shortest;
}