'''
Mech typeclass
'''

from typeclasses.objects import Object
from commands.mech_cmds import CmdSetMech

DESC_INSIDE = '''
You see the insides of a large mech.

Glancing at the controls you see you can do the following:
    look through the |xHUD|n
    |xdrive|n to a destination
    |xexit|n the mech
'''.strip()

class Mech(Object):
    '''
    Mech typeclass
    '''
    def at_object_creation(self):
        'Called once when object is created'
        self.locks.add('get:none()') # Restrict ability to be put in inventory
        self.db.get_err_msg = "You can't possibly lift this"

        self.db.desc_inside = DESC_INSIDE
        self.cmdset.add_default(CmdSetMech, permanent=True)

    def msg_contents(self, text=None, exclude=[], from_obj=None, mapping=None, **kwargs):
        'Intercept in order to relay messages from pilot to the room'
        super().msg_contents(text=text, exclude=exclude, from_obj=from_obj, mapping=mapping)

        # Relay messages from pilot to room
        if exclude:
            # Evennia will pass a tuple to this method...I convert it because I hate tuples
            # TODO: Embrace the tuple and fix my implementation
            exclude = list(exclude).append(self)
            self.location.msg_contents(text=text, exclude=exclude, from_obj=from_obj, mapping=mapping)

    def at_msg_receive(self, text=None, exclude=None, from_obj=None, **kwargs):
        'Relay messages to pilots'
        # Prevent loop when pilot uses say
        self.msg_contents(text=text, exclude=exclude, from_obj=from_obj)

    def return_appearance(self, looker=None):
        'What a user sees when using look'
        if looker in self.contents:
            # return self.db.desc_inside
            return self.db.desc_inside
        return 'You see a large mech. It looks like it has missiles and stuff.'