#!/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 group_app as group_app_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 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

  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

    key_fields = group_app_logic.logic.getKeyFieldsFromDict(kwargs)

    application = group_app_logic.logic.getFromFields(**key_fields)

    # 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