__config() -> {
    'strict' -> true,
    'stay_loaded' -> true,
    'scope' -> 'global',
};

_leash(leader, follower) -> (
	run(str(
		'data modify entity %s leash.UUID set from entity %s UUID',
		query(follower, 'uuid'),
		query(leader, 'uuid')
	))
);

global_leashable = [
	// villagers
	'villager',
	'wandering_trader',
	// animals
	'turtle',
	'bat',
	'pufferfish',
	'silverfish',
	// neutral-ish
	'spider',
	'slime',
	'enderman',
	'piglin',
	'zombified_piglin',
	'creaking',
];

__on_player_interacts_with_entity(p, e, h) -> (
	if((global_leashable ~ (e~'type')) == null, return());
	if(e~'nbt':'leash', return());

	hand = null;
	for([0, -1], (
		item = inventory_get('equipment', p, _);
		if(item:0 == 'lead', (
			hand = _;
			break();
		));
	));

	if(hand == null, return());

	_leash(p, e);
	if(query(p, 'gamemode_id') != 1,
		inventory_set('equipment', p, hand, item:1-1);
	);

	'cancel'
);