#!/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 Group App.

"""

__authors__ = [

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

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

  ]

from django import forms

from django.utils.translation import ugettext

from soc.logic import accounts

from soc.logic import cleaning

from soc.logic import dicts

from soc.logic.helper import notifications

from soc.logic.models import group_app as group_app_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 decorators

from soc.views.helper import lists as list_helper

from soc.views.helper import redirects

from soc.views.helper import responses

from soc.views.models import base

import soc.logic.models.group_app

class View(base.View):

  """View methods for the Group App 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

    """

    new_params = {}

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

    new_params['name'] = "Group Application"

    new_params['name_short'] = "Group App"

    # use the twoline templates for these questionnaires

    new_params['create_template'] = 'soc/models/twoline_edit.html'

    new_params['edit_template'] = 'soc/models/twoline_edit.html'

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

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

        'Review %(name_plural)s'),

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

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

          'Review %(name_short)s')]

    new_params['extra_django_patterns'] = patterns

    new_params['sidebar_additional'] = [

        ('/%(url_name)s/review' % params,

         'Review %(name_plural)s' % params, 'review')]

    new_params['extra_dynaexclude'] = ['applicant', 'backup_admin', 'status',

        'created_on', 'last_modified_on']

    new_params['create_extra_dynafields'] = {

        'backup_admin_link_id': forms.CharField(

              label=params['logic'].getModel().backup_admin.verbose_name

              ),

        'clean_backup_admin_link_id': 

            cleaning.clean_users_not_same('backup_admin_link_id'),

        }

    new_params['edit_extra_dynafields'] = {

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

        }

    params = dicts.merge(params, new_params, sub_merge=True)

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

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

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

    """

    form.fields['backup_admin_link_id'].initial = entity.backup_admin.link_id

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

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

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

    """

    if not entity:

      # creating a new group application

      key_fields =  self._logic.getKeyFieldsFromFields(fields)

      group_app_entity = self._logic.getForFields(key_fields, unique=True)

      user_entity = user_logic.logic.getForCurrentAccount()

      if group_app_entity.applicant.key() != user_entity.key():

        # someone else is applying remove the existing group application

        group_app_logic.logic.delete(group_app_entity)

      # set the applicant field to the current user

      fields['applicant'] = user_entity

    #set the backup_admin field with the cleaned link_id

    fields['backup_admin'] = fields['backup_admin_link_id']

    # the application has either been created or edited so

    # the status needs to be set accordingly

    fields['status'] = 'needs review'

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

  def _public(self, request, entity, context):

    """See base._public().

    """

    context['entity_type_url'] = self._params['url_name']

    super(View, self)._public(request, entity, context)

  @decorators.merge_params

  @decorators.check_access

  def list(self, request, access_type,

           page_name=None, params=None, filter=None):

    """Lists all notifications that the current logged in user has stored.

    for parameters see base.list()

    """

    # get the current user

    user_entity = user_logic.logic.getForCurrentAccount()

    is_developer = accounts.isDeveloper(user=user_entity)

    filter = {

        'status': 'needs review',

        }

    if not is_developer:

      # only select the applications for this user so construct a filter

      filter['applicant'] = user_entity

    # get all the pending applications

    pa_params = params.copy() # pending applications

    if is_developer:

      pa_params['list_description'] = ugettext(

          "An overview of all pending %(name_plural)s.") % params

    else:

      pa_params['list_description'] = ugettext(

          "An overview of your pending %(name_plural)s.") % params

    pa_list = list_helper.getListContent(

        request, pa_params, filter, 0)

    # get all the reviewed applications now

    # re-use the old filter, but set to only reviewed and accepted

    filter['status'] = 'accepted'

    aa_params = params.copy() # accepted applications

    if is_developer:

      aa_params['list_description'] = ugettext(

          "An overview of all accepted %(name_plural)s.") % params

    else:

      aa_params['list_description'] = ugettext(

          "An overview of your accepted %(name_plural)s.") % params

    aa_params['url_name'] = params['group_url_name']

    aa_params['list_action'] = (redirects.getApplicantRedirect, aa_params)

    aa_list = list_helper.getListContent(

        request, aa_params, filter, 1)

    # get all the reviewed applications that were denied

    # re use the old filter, but this time only for denied apps

    filter['status'] = 'rejected'

    da_params = params.copy() # denied applications

    if is_developer:

      da_params['list_description'] = ugettext(

          "An overview of all denied %(name_plural)s.") % params

    else:

      da_params['list_description'] = ugettext(

          "An overview of your denied %(name_plural)s.") % params

    da_list = list_helper.getListContent(

        request, da_params, filter, 2)

    contents = [pa_list, aa_list, da_list]

    if is_developer:

      # re use the old filter, but this time only for ignored apps

      filter['status'] = 'ignored'

      ia_params = params.copy() # ignored applications

      ia_params['list_description'] = ugettext(

          "An overview of all ignored %(name_plural)s.") % params

      ia_list = list_helper.getListContent(

          request, ia_params, filter, 3)

      contents += [ia_list]

    # call the _list method from base to display the list

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

  @decorators.merge_params

  @decorators.check_access

  def review(self, request, access_type,

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

    """Handles the view containing the review of an application.

    accepted (true or false) in the GET data will mark

    the application accordingly.

    For params see base.View.public().

    """

    # create default template context for use with any templates

    context = responses.getUniversalContext(request)

    context['page_name'] = page_name

    entity = None

    try:

      key_fields = self._logic.getKeyFieldsFromFields(kwargs)

      entity = self._logic.getFromKeyFieldsOr404(key_fields)

    except out_of_band.Error, error:

      return helper.responses.errorResponse(

          error, request, template=params['error_public'], context=context)

    get_dict = request.GET

    # check to see if we can make a decision for this application

    if 'status' in get_dict.keys():

      status_value = get_dict['status']

      if status_value in ['accepted', 'rejected', 'ignored']:

        # this application has been properly reviewed update the status

        # only update if the status changes

        if entity.status != status_value:

          fields = {'status' : status_value}

          self._logic.updateEntityProperties(entity, fields)

          if status_value == 'accepted':

            # the application has been accepted send out a notification

            notifications.sendNewGroupNotification(entity, params)

        return self.reviewOverview(request, access_type,

            page_name=page_name, params=params, **kwargs)

    # the application has not been reviewed so show the information

    # using the appropriate review template

    params['public_template'] = params['review_template']

    return super(View, self).public(request, access_type,

        page_name=page_name, params=params, **kwargs)

  @decorators.merge_params

  @decorators.check_access

  def reviewOverview(self, request, access_type,

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

    """Displays multiple lists of applications that are in a different

    status of the application process.

    """

    params = dicts.merge(params, self._params)

    # only select the requests that haven't been reviewed yet

    filter = {'status' : 'needs review'}

    ur_params = params.copy()

    ur_params['list_description'] = ugettext('A list of all unhandled '

        '%(name_plural)s.') % params

    ur_params ['list_action'] = (redirects.getReviewRedirect, params)

    ur_list = list_helper.getListContent(

        request, ur_params, filter, 0)

    # only select the requests that haven't been turned into a group yet

    filter['status'] = 'accepted'

    uh_params = params.copy()

    uh_params['list_description'] = ugettext('A list of all %(name_plural)s '

        'that have been accepted but not completed yet') % params

    uh_params ['list_action'] = (redirects.getReviewRedirect, params)

    uh_list = list_helper.getListContent(

        request, uh_params, filter, 1)

    # only select the requests the have been rejected

    filter ['status'] = 'rejected'

    den_params = params.copy()

    den_params['list_description'] = ugettext('A list of all %(name_plural)s '

        'that have been rejected') % params

    den_params ['list_action'] = (redirects.getReviewRedirect, params)

    den_list = list_helper.getListContent(

        request, den_params, filter, 2)

    # only select the request that have been ignored

    filter ['status'] = 'ignored'

    ign_params = params.copy()

    ign_params['list_description'] = ugettext('A list of all %(name_plural)s '

        'that have been ignored') % params

    ign_params ['list_action'] = (redirects.getReviewRedirect, params)

    ign_list = list_helper.getListContent(

        request, ign_params, filter, 3)

    # fill contents with all the needed lists

    contents = [ur_list, uh_list, den_list, ign_list]

    # call the _list method from base to display the list

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