#!/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 Host profiles.

"""

__authors__ = [

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

  ]

from soc.logic import accounts

from soc.logic import dicts

from soc.logic.models import host as host_logic

from soc.logic.models import user as user_logic

from soc.views import helper

from soc.views.models import role

from soc.views.models import sponsor as sponsor_view

from soc.views.helper import access

import soc.models.host

import soc.logic.models.host

import soc.views.helper

import soc.views.models.sponsor

# TODO(pawel.solyga): Rename all list methods and functions to something else

# and remove this tolist assignment

tolist = list

class CreateForm(helper.forms.BaseForm):

  """Django form displayed when creating a Host.

  """

  class Meta:

    """Inner Meta class that defines some behavior for the form.

    """

    #: db.Model subclass for which the form will gather information

    model = soc.models.host.Host

    #: list of model fields which will *not* be gathered by the form

    exclude = ['scope', 'user', 'state']

  def clean_empty(self, field):

    data = self.cleaned_data.get(field)

    if not data or data == u'':

      return None

    return data

  def clean_home_page(self):

    return self.clean_empty('home_page')

  def clean_blog(self):

    return self.clean_empty('blog')

  def clean_photo_url(self):

    return self.clean_empty('photo_url')

class EditForm(CreateForm):

  """Django form displayed when editing a Host.

  """

  pass

class View(role.View):

  """View methods for the Host 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['list'] = [access.checkIsHost]

    new_params = {}

    new_params['rights'] = rights

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

    new_params['scope_view'] = sponsor_view

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

    new_params['group_view'] = soc.views.models.sponsor.view

    new_params['invite_filter'] = {'group_ln': 'link_id'}

    new_params['name'] = "Program Administrator"

    new_params['module_name'] = "host"

    new_params['edit_form'] = EditForm

    new_params['create_form'] = CreateForm

    params = dicts.merge(params, new_params)

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

  def list(self, request, access_type, page_name=None, 

           params=None, filter=None):

    """See base.View.list.

    Passes a filter to base.View.list so that only hosts from a sponsor

    that this user is host for are listed.

    """

    user = user_logic.logic.getForCurrentAccount()

    # Don't bother looking up everything if there's no user

    if user and (not accounts.isDeveloper(user=user)):

      hosts = host_logic.logic.getForFields({'user': user})

      sponsors = tolist((host.scope for host in hosts))

      new_filter = {'scope': sponsors}

      filter = dicts.merge(filter, new_filter)

    return super(View, self).list(request, access_type, page_name=page_name,

                                  params=params, filter=filter)

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

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

    """

    user = user_logic.logic.getFromKeyName(fields['link_id'])

    fields['user'] = user

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

view = View()

create = view.create

delete = view.delete

edit = view.edit

list = view.list

public = view.public

export = view.export

invite = view.invite