#!/usr/bin/env python3

from plugins.plugin import Plugin


class Help(Plugin):
    def activate(self):
        super(Help, self).activate()

    def deactivate(self):
        super(Help, self).deactivate()

    @Plugin.command()
    def help(self, room, event, args):
        """Show list of commands (or only CMD) doc => !help [CMD]"""
        command_names = []
        if len(args) >= 1:
            help_command = ' '.join(args)
            if help_command[0] != '!':
                help_command = '!' + help_command
            if help_command in self.plugin_manager.commands.keys():
                command_names = [help_command]
        if not command_names:
            command_names = self.plugin_manager.commands.keys()
        reply = ['Usage:']
        for command_name in command_names:
            command = self.plugin_manager.commands[command_name]
            if not self.plugin_manager.is_admin_command(command_name) or self.plugin_manager.is_sender_admin(event):
                reply.append('{0}: {1}'.format(command_name, command['function'].__doc__ or 'N/A'))
        room.send_text("\n".join(reply))
        return True