#!/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 Clubs.

"""

__authors__ = [

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

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

  ]

from google.appengine.api import users

from django import http

from django import forms

from soc.logic import dicts

from soc.logic.models import user as user_logic

from soc.logic.models import club as club_logic

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 widgets

from soc.views.helper import responses

from soc.views.models import base

import soc.logic.models.club

import soc.views.helper

class View(base.View):

  """View methods for the Club 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 = {}

    rights['create'] = [access.checkIsHost]

    rights['edit'] = [access.checkIsClubAdminForClub]

    rights['applicant'] = [access.checkIsClubAppAccepted]

    new_params = {}

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

    new_params['rights'] = rights

    new_params['name'] = "Club"

    patterns = []

    page_name = "Club Creation via Accepted Application"

    patterns += [(r'^%(url_name)s/(?P<access_type>applicant)/%(key_fields)s$',

                  'soc.views.models.%(module_name)s.applicant', page_name)]

    new_params['extra_django_patterns'] = patterns

    new_params['extra_dynaexclude'] = ['founder', 'home']

    new_params['edit_extra_dynafields'] = {

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

                                   required=False),

        }

    params = dicts.merge(params, new_params)

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

    # create and store the special form for applicants

    updated_fields = {

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

            required=False)}

    applicant_create_form = dynaform.extendDynaForm(

        dynaform = self._params['create_form'],

        dynafields = updated_fields)

    params['applicant_create_form'] = applicant_create_form

  @decorators.merge_params

  @decorators.check_access

  def applicant(self, request, access_type,

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

    """Handles the creation of a club via an approved club application.

    Args:

      request: the standard Django HTTP request object

      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)

    context['page_name'] = page_name

    if request.method == 'POST':

      return self.applicantPost(request, context, params, **kwargs)

    else:

      # request.method == 'GET'

      return self.applicantGet(request, context, params, **kwargs)

  def applicantGet(self, request, context, params, **kwargs):

    """Handles the GET request concerning the creation of a club via an

    approved club application.

    Args:

      request: the standard Django HTTP request object

      context: dictionary containing the context for this view

      params: a dict with params for this View

      kwargs: the Key Fields for the specified entity

    """

    # find the application

    # extract the application fields

    field_names = application.properties().keys()

    fields = dict( [(i, getattr(application, i)) for i in field_names] )

    # create the form using the fields from the application as the initial value

    form = params['applicant_create_form'](initial=fields)

    # construct the appropriate response

    return super(View, self)._constructResponse(request, entity=None,

        context=context, form=form, params=params)

  def applicantPost(self, request, context, params, **kwargs):

    """Handles the POST request concerning the creation of a club via an

    approved club application.

    Args:

      request: the standard Django HTTP request object

      context: dictionary containing the context for this view

      params: a dict with params for this View

      kwargs: the Key Fields for the specified entity

    """

    # populate the form using the POST data

    form = params['applicant_create_form'](request.POST)

    if not form.is_valid():

      # return the invalid form response

      return self._constructResponse(request, entity=None, context=context,

          form=form, params=params)

    # collect the cleaned data from the valid form

    key_name, fields = soc.views.helper.forms.collectCleanedFields(form)

    # fill in the founder of the club

    account = users.get_current_user()

    user = user_logic.logic.getForFields({'account': account}, unique=True)

    fields['founder'] = user

    if not key_name:

      key_fields =  self._logic.getKeyFieldsFromDict(fields)

      key_name = self._logic.getKeyNameForFields(key_fields)

    # create the club entity

    entity = self._logic.updateOrCreateFromKeyName(fields, key_name)

    # redirect to notifications list to see the admin invite

    return http.HttpResponseRedirect('/notification/list')

  def _editGet(self, request, entity, form):

    """See base.View._editGet().

    """

    # fill in the founded_by with data from the entity

    form.fields['founded_by'].initial = entity.founder.name

    super(View, self)._editGet(request, entity, form)

  def _editPost(self, request, entity, fields):

    """See base.View._editPost().

    """

    if not entity:

      # only if we are creating a new entity we should fill in founder

      account = users.get_current_user()

      user = user_logic.logic.getForFields({'account': account}, unique=True)

      fields['founder'] = user

    super(View, self)._editPost(request, entity, fields)

view = View()

applicant = view.applicant

create = view.create

delete = view.delete

edit = view.edit

list = view.list

public = view.public

export = view.export