#!/usr/bin/env python3
"""
The trigger abstraction layer.
"""
import config

def split_user(user):
	"""
	Splits a user hostmask into <nick>!<ident>@<host>
	"""
	nick, _, host = user.partition("!")
	ident, _, host = host.partition("@")
	if not host:
		host = ident
		ident = ""
	return nick, ident, host


class Trigger():
	def __init__(self, user, channel, message):
		self.channel = channel
		"""
		The channel from which the message was sent.
		In a private message, this is the nick that sent the message.
		"""

		self.is_privmsg = not channel.startswith("#")
		"""True if the trigger is from a user, False if it's from a channel."""

		self.hostmask = user
		"""
		Entire hostmask of the person who sent the message.
		eg. <nick>!<ident>@<host>
		"""

		nick, ident, host = split_user(user)
		self.nick = nick
		"""Nick of person who sent the message."""

		self.ident = ident
		self.user = ident
		"""Local username (AKA ident) of the person who sent the message."""

		self.host = host
		"""The hostname of the person who sent the message"""

		self.args = message.strip().split(' ')
		"""Pseudo-ARGV for a bot command."""

		admins = config.admins + [config.owner]
		self.admin = any([user == admin for admin in admins])
		"""
		True if the user which triggered the command is one of the bot's
		admins.
		"""

		self.owner = user == config.owner
		"""True if the nick which triggered the command is the bot's owner."""