# Copyright (C) 2007-2012 Mortal Coil Games
# See LICENSE for details.
"""
"""

from twisted.python.util import mergeFunctionMetadata

from mv3d.net.security import AccessDenied



def checkServicePermissions(*perms):
    """
    Specify that certain permissions are required
    for this method assumes argument 2
    can be checked for security.
    """
    def decorator(func):
        def wrapper(self, *args, **kw):
            for perm in perms:
                if not self.service.checkPermissions(args[0], perm):
                    raise AccessDenied("You do not have %s permissions "
                        "to run %s." % (perm, func.__name__))
            return func(self, *args, **kw)
        mergeFunctionMetadata(func, wrapper)
        return wrapper
    return decorator



def viewed(func):
    def wrapper(self, client, *args, **kw):
        nm = "_".join(func.__name__.split("_")[1:])
        return getattr(self.service, nm)(*args, **kw)
    mergeFunctionMetadata(func, wrapper)
    return wrapper



def viewedWithClient(func):
    def wrapper(self, client, *args, **kw):
        nm = "_".join(func.__name__.split("_")[1:])
        return getattr(self.service, nm)(client, *args, **kw)
    mergeFunctionMetadata(func, wrapper)
    return wrapper