extends Node

# 事件注册表
# { entity: [MatcherConsumer] }
var _event_registry: Dictionary = {}


class MatcherConsumer:
	extends RefCounted
	var matcher: GameEventMatcher
	var consumer: Callable

	func _init(m: GameEventMatcher, c: Callable) -> void:
		self.matcher = m
		self.consumer = c


# 注册事件
func register_event_matcher(event_matcher: GameEventMatcher, consumer: Callable) -> void:
	if !event_matcher.entity:
		return
	var matcher_consumer = MatcherConsumer.new(event_matcher, consumer)
	if event_matcher.entity not in _event_registry:
		_event_registry[event_matcher.entity] = []
	_event_registry[event_matcher.entity].append(matcher_consumer)


# 触发事件
func trigger_event(event: GameEvent) -> void:
	if event.entity not in _event_registry:
		return
	for matcher_consumer in _event_registry[event.entity]:
		# matcher_consumer = matcher_consumer as MatcherConsumer
		if matcher_consumer._matcher.match(event):
			matcher_consumer._consumer.call(event)
	if event.need_to_save:
		_save_event(event)


func _save_event(event) -> void:
	# 保存事件
	pass


func prop_interacted(name, prop_key, interacted_times) -> void:
	print("Event: %s interacted with %s. total times: %s" % [name, prop_key, interacted_times])
	pass