# Copyright (C) 2009, Tutorius.org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

from ..actions import *

class ChainAction(Action):
    actions = TAddonListProperty()

    """Utility class to allow executing actions in a specific order"""
    def __init__(self, actions=[]):
        """ChainAction(action1, ... ) builds a chain of actions"""
        Action.__init__(self)
        self.actions = actions

    def do(self,**kwargs):
        """do() each action in the chain"""
        for act in self.actions:
            act.do(**kwargs)

    def undo(self):
        """undo() each action in the chain, starting with the last"""
        for act in reversed(self.actions):
            act.undo()

__action__ = {
    'name': 'ChainAction',
    'display_name' : 'Chain of actions',
    'icon' : 'chain',
    'class' : ChainAction,
    'mandatory_props' : ['actions'],
    'test' : True
}