from abc import ABC
from msg_container import MsgContainer
from msg_listener import MsgListener

class MsgTalker(ABC):
	def __init__(self):
		self.sinks = []

	def register_listener(self, sink: MsgListener):
		self.sinks.append(sink)

	def call_listener(self, msg: MsgContainer):
		for sink in self.sinks:
			if sink.is_msg(msg):
				sink.on_recv(msg)