class StartStandupCommand(Command):
    validator = '^Standup for:'

    def do(self):
        groups = re.findall(re.compile('(?P<names>[a-z0-9\.]*@[a-z\.]*)'), self.input)
        members = slack_client.api_call("users.list")['members']
        members = [(m['id'], m['profile'].get('email')) for m in members if m['profile'].get('email') in groups]

        for id, email in members:
            channel_id = slack_client.api_call(
                "conversations.open",
                users=[id]
            )['channel']['id']

            slack_client.api_call(
                "chat.postMessage",
                channel=channel_id,
                text="""
                Hey! It's standup time! Please answer:
                1. What are you workinng on?
                2. Do you encounter any problems?
                3. What are your plans for later?
                """
            )
            STANDUP_CHANNELS[channel_id] = {'origin': self.channel,  'author': email, 'response': []}

        slack_client.api_call(
            "chat.postMessage",
            channel=self.channel,
            text=f"Be right back! Gathering feedback from {', '.join([m[1] for m in members])}"
        )