#!/usr/bin/python2.5

#

# Copyright 2008 the Melange authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#   http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""Views for Requests.

"""

__authors__ = [

    '"Sverre Rabbelier" <sverre@rabbelier.nl>',

    '"Lennard de Rijk" <ljvderijk@gmail.com>',

    '"Pawel Solyga" <pawel.solyga@gmail.com>',

  ]

from google.appengine.api import users

from django import forms

from django import http

from django.core import urlresolvers

from django.utils.translation import ugettext

from soc.logic import cleaning

from soc.logic import dicts

from soc.logic.models import sponsor as sponsor_logic

from soc.logic.models import user as user_logic

from soc.views import helper

from soc.views import out_of_band

from soc.views.helper import access

from soc.views.helper import decorators

from soc.views.helper import dynaform

from soc.views.helper import redirects

from soc.views.helper import responses

from soc.views.helper import widgets

from soc.views.models import base

import soc.models.request

import soc.logic.models.request

import soc.logic.dicts

import soc.views.helper

import soc.views.helper.lists

import soc.views.helper.responses

class View(base.View):

  """View methods for the Request model.

  """

  def __init__(self, params=None):

    """Defines the fields and methods required for the base View class

    to provide the user with list, public, create, edit and delete views.

    Params:

      params: a dict with params for this View

    """

    rights = access.Checker(params)

    rights['listSelf'] = ['checkAgreesToSiteToS']

    rights['create'] = ['deny']

    rights['edit'] = ['checkIsDeveloper']

    rights['process_invite'] = ['checkIsMyGroupAcceptedRequest']

    rights['list'] = ['checkIsDeveloper']

    rights['delete'] = ['checkIsDeveloper']

    new_params = {}

    new_params['rights'] = rights

    new_params['logic'] = soc.logic.models.request.logic

    new_params['name'] = "Request"

    new_params['sidebar_defaults'] = [('/%s/list', 'List %(name_plural)s', 'list')]

    new_params['save_message'] = [ugettext('Request saved.')]

    new_params['extra_dynaexclude'] = ['state', 'role_verbose']

    # TODO(ljvderijk) add clean field that checks to see if the user already has

    # the role that's been entered in the create form fields

    new_params['create_extra_dynafields'] = {

        'role': forms.CharField(widget=widgets.ReadOnlyInput(),

                                   required=True),

        'clean_link_id': cleaning.clean_existing_user('link_id')

        }

    new_params['edit_extra_dynafields'] = {

        'scope_path': forms.CharField(widget=forms.HiddenInput,

                                        required=True),

        }

    patterns = [(r'^%(url_name)s/(?P<access_type>invite)/%(lnp)s$',

        'soc.views.models.%(module_name)s.invite',

        'Create invite for %(name_plural)s'),

        (r'^%(url_name)s/(?P<access_type>process_invite)/%(key_fields)s$',

          'soc.views.models.%(module_name)s.process_invite',

          'Process Invite to become')]

    new_params['extra_django_patterns'] = patterns

    new_params['invite_processing_template'] = 'soc/request/process_invite.html'

    new_params['request_processing_template'] = 'soc/request/process_request.html'

    params = dicts.merge(params, new_params)

    super(View, self).__init__(params=params)

    # create and store the special forms for invite and requests

    params['invite_form'] = params['create_form']

    updated_fields = {

        'link_id': forms.CharField(widget=widgets.ReadOnlyInput(),

            required=True),

        'group_id' : forms.CharField(widget=widgets.ReadOnlyInput(),

            required=True)}

    request_form = dynaform.extendDynaForm(

        dynaform = self._params['create_form'],

        dynafields = updated_fields)

    params['request_form'] = request_form

  @decorators.merge_params

  @decorators.check_access

  def processInvite(self, request, access_type,

                   page_name=None, params=None, **kwargs):

    """Creates the page upon which an invite can be processed.

    Args:

      request: the standard Django HTTP request object

      access_type : the name of the access type which should be checked

      page_name: the page name displayed in templates as page and header title

      params: a dict with params for this View

      kwargs: the Key Fields for the specified entity

    """

    # get the context for this webpage

    context = responses.getUniversalContext(request)

    request_logic = params['logic']

    # get the request entity using the information from kwargs

    fields = {'link_id': kwargs['link_id'],

        'scope_path': kwargs['scope_path'],

        'role': kwargs['role'],

        'state': 'group_accepted'}

    request_entity = request_logic.getForFields(fields, unique=True)

    # set the page name using the request_entity

    context['page_name'] = '%s %s' % (page_name, 

        request_entity.role_verbose)

    get_dict = request.GET

    if 'status' in get_dict.keys():

      if get_dict['status'] == 'rejected':

        # this invite has been rejected mark as rejected

        request_logic.updateEntityProperties(request_entity, {

            'state': 'rejected'})

        # redirect to user role overview

        return http.HttpResponseRedirect('/user/roles')

    # put the entity in the context

    context['entity'] = request_entity

    context['module_name'] = params['module_name']

    context['invite_accepted_redirect'] = (

        redirects.getInviteAcceptedRedirect(request_entity, self._params))

    #display the invite processing page using the appropriate template

    template = params['invite_processing_template']

    return responses.respond(request, template, context=context)

  @decorators.merge_params

  @decorators.check_access

  def listSelf(self, request, access_type,

               page_name=None, params=None, **kwargs):

    """Displays the unhandled requests for this user.

    Args:

      request: the standard Django HTTP request object

      access_type : the name of the access type which should be checked

      page_name: the page name displayed in templates as page and header title

      params: a dict with params for this View

      kwargs: not used

    """

    # get the current user

    properties = {'account': users.get_current_user()}

    user_entity = user_logic.logic.getForFields(properties, unique=True)

    # construct the Unhandled Invites list

    # only select the Invites for this user that haven't been handled yet

    filter = {'link_id': user_entity.link_id,

              'state': 'group_accepted'}

    uh_params = params.copy()

    uh_params['list_action'] = (redirects.getInviteProcessRedirect, None)

    uh_params['list_description'] = ugettext(

        "An overview of your unhandled invites.")

    uh_list = helper.lists.getListContent(

        request, uh_params, filter, 0)

    # construct the Open Requests list

    # only select the requests from the user

    # that haven't been accepted by an admin yet

    filter = {'link_id': user_entity.link_id,

              'state': 'new'}

    ar_params = params.copy()

    ar_params['list_description'] = ugettext(

        "List of your pending requests.")

    ar_list = helper.lists.getListContent(

        request, ar_params, filter, 1)

    # fill contents with all the needed lists

    contents = [uh_list, ar_list]

    # call the _list method from base to display the list

    return self._list(request, params, contents, page_name)

view = View()

create = view.create

edit = view.edit

delete = view.delete

list = view.list

list_self = view.listSelf

process_invite = view.processInvite

public = view.public

export = view.export