class_name SimulationEnemies
extends RefCounted

static var _enemies: Dictionary = {}
static var _cache_valid := false


static func _ensure_cache() -> void:
	if _cache_valid:
		return
	_enemies = {}
	var catalog := ContentCatalog.create_core()
	if catalog.is_valid():
		for enemy in catalog.get_enemies():
			_enemies[enemy.enemy_id] = enemy
	_cache_valid = true


static func invalidate_cache() -> void:
	_cache_valid = false


static func get_enemy(enemy_id: StringName) -> EnemyDefinition:
	_ensure_cache()
	return _enemies.get(enemy_id) as EnemyDefinition


static func get_all() -> Array[EnemyDefinition]:
	_ensure_cache()
	var values: Array[EnemyDefinition] = []
	for enemy in _enemies.values():
		values.append(enemy)
	values.sort_custom(
		func(first: EnemyDefinition, second: EnemyDefinition) -> bool:
			return String(first.enemy_id) < String(second.enemy_id)
	)
	return values