#!/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 User profiles.

"""

__authors__ = [

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

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

  ]

from google.appengine.api import users

from django import forms

from soc.logic import dicts

from soc.logic import validate

from soc.logic.models.site import logic as site_logic

from soc.logic.models.user import logic as user_logic

from soc.views import helper

from soc.views.helper import redirects

from soc.views.models import base

import soc.models.linkable

import soc.models.user

import soc.logic.models.user

import soc.views.helper

class CreateForm(helper.forms.BaseForm):

  """Django form displayed when creating a User.

  """

  email = forms.EmailField(

      label=soc.models.user.User.account.verbose_name,

      help_text=soc.models.user.User.account.help_text)

  link_id = forms.CharField(

      label=soc.models.user.User.link_id.verbose_name,

      help_text=soc.models.linkable.Linkable.link_id.help_text)

  name = forms.CharField(

      label=soc.models.user.User.name.verbose_name,

      help_text=soc.models.user.User.name.help_text)

  is_developer = forms.BooleanField(required=False,

      label=soc.models.user.User.is_developer.verbose_name,

      help_text=soc.models.user.User.is_developer.help_text)

  agrees_to_tos = forms.BooleanField(required=False,

      widget=helper.widgets.ReadOnlyBool(),

      label=soc.models.user.User.agrees_to_tos.verbose_name,

      help_text=soc.models.user.User.agrees_to_tos.help_text)

  class Meta:

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

    """

    model = None

  def clean_link_id(self):

    link_id = self.cleaned_data.get('link_id').lower()

    if not validate.isLinkIdFormatValid(link_id):

      raise forms.ValidationError("This link ID is in wrong format.")

    properties = {'link_id': link_id}

    link_id_user = soc.logic.models.user.logic.getForFields(properties,

                                                            unique=True)

    key_name = self.data.get('key_name')

    if key_name:

      key_name_user = user_logic.getFromKeyName(key_name)

      if (link_id_user and key_name_user

          and (link_id_user.account != key_name_user.account)):

        raise forms.ValidationError("This link ID is already in use.")

    return link_id

  def clean_email(self):

    form_account = users.User(email=self.cleaned_data.get('email'))

    key_name = self.data.get('key_name')

    if key_name:

      user = user_logic.getFromKeyName(key_name)

      old_email = user.account.email()

    else:

      old_email = None

    new_email = form_account.email()

    if new_email != old_email \

        and user_logic.getForFields({'email': new_email}, unique=True):

      raise forms.ValidationError("This account is already in use.")

    return self.cleaned_data.get('email')

class EditForm(CreateForm):

  """Django form displayed when editing a User.

  """

  key_name = forms.CharField(widget=forms.HiddenInput)

class View(base.View):

  """View methods for the User 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.user.logic

    new_params['name'] = "User"

    new_params['edit_form'] = EditForm

    new_params['create_form'] = CreateForm

    new_params['edit_template'] = 'soc/user/edit.html'

    new_params['sidebar_heading'] = 'Users'

    params = dicts.merge(params, new_params)

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

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

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

    """

    # fill in the email field with the data from the entity

    form.fields['email'].initial = entity.account.email()

    form.fields['agrees_to_tos'].example_text = self._getToSExampleText()

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

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

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

    """

    # fill in the account field with the user created from email

    fields['account'] = users.User(fields['email'])

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

  def _getToSExampleText(self):

    """Returns example_text linking to site-wide ToS, or a warning message.

    """

    tos_link = redirects.getToSRedirect(site_logic.getSingleton())

    if not tos_link:

      return ('<div class="notice">&nbsp;<i>No site-wide</i> Terms of'

              ' Service <i>are currently set!</i>&nbsp;</div>')

    return ('<i>current site-wide <b><a href=%s>Terms of Service</a></b></i>'

            % tos_link)

view = View()

create = view.create

delete = view.delete

edit = view.edit

list = view.list

public = view.public

export = view.export