#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2008-2013  Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>

# 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 3 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, see <http://www.gnu.org/licenses/>.

# See the file COPYING for details.

"""
Actions available in the main interface
"""
from django.conf import settings
from django.contrib.auth import models
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _

from chimere.models import Page, Map

class Action:
    def __init__(self, id, path, label, extra_url_args=[],
                 condition=None):
        self.id, self.path, self.label = id, path, label
        self.extra_url_args, self.url = extra_url_args, None
        self.condition = condition

    def update_url(self, map_name):
        self.url = reverse(self.path,
             args=[map_name + '/' if map_name else ''] + self.extra_url_args)

DEFAULT_ACTIONS = [[Action('view', 'chimere:index', _('View')), []],
   [Action('contribute', 'chimere:edit', _('Contribute'),
           condition=lambda user, map_name:bool(
                        Map.getAvailable(user=user, urn=map_name, single=True,
                                         propose=True))),
            (Action('edit', 'chimere:edit', _('Add a new point of interest')),
             Action('edit-route', 'chimere:editroute', _('Add a new route'))),
                    ],
   ]

if settings.CHIMERE_FEEDS:
    DEFAULT_ACTIONS.append([Action('rss', 'chimere:feeds-form',
                                   _('RSS feeds')), []])

if settings.EMAIL_HOST:
    DEFAULT_ACTIONS.append([Action('contact', 'chimere:contact',
                                   _('Contact us')), []],)

def actions(user, map_name='', default_actions=DEFAULT_ACTIONS):
    acts, idx = [], -1
    for act, childs in default_actions:
        if act.id not in settings.CHIMERE_DEFAULT_ACTIONS:
            continue
        idx += 1
        if act.condition:
            if not act.condition(user, map_name):
                continue
        act.update_url(map_name)
        for child_act in childs:
            child_act.update_url(map_name)
        if "CHIMERE_DEFAULT_ACTION_LABEL" in dir(settings):
            if len(settings.CHIMERE_DEFAULT_ACTION_LABEL) > idx:
                act.label = settings.CHIMERE_DEFAULT_ACTION_LABEL[idx]
        acts.append((act, childs))
    for page in Page.objects.filter(available=True).order_by('order'):
        act = Action(page.mnemonic, 'chimere:extra_page', page.title,
                     [page.mnemonic])
        act.update_url(map_name)
        acts.append((act, []))

    return acts