#!/usr/bin/python2.5

#

# Copyright 2009 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.

"""GHOP module cleaning methods.

"""

__authors__ = [

    '"Madhusudan.C.S" <madhusudancs@gmail.com>',

    ]

from django import forms

from django.utils.translation import ugettext

from soc.logic import cleaning

from soc.logic import validate

def cleanTaskComment(comment_field, action_field, ws_field):

  """Cleans the comment form and checks to see if there is either

  action or comment content.

  Raises ValidationError if:

    -There is no action taking place and no comment present

    -The action is needs_review and there is no comment or work submission

     present

  """

  def wrapper(self):

    """Decorator wrapper method.

    """

    cleaned_data = self.cleaned_data

    content = cleaned_data.get(comment_field)

    action = cleaned_data.get(action_field)

    work_submission = cleaned_data.get(ws_field)

    if action == 'noaction' and not content:

      raise forms.ValidationError(

          ugettext('You cannot have comment field empty with no action.'))

    if action == 'needs_review' and not content and not work_submission:

      raise forms.ValidationError(

          ugettext('You cannot have both comment field and work '

                   'submission fields empty.'))

    return cleaned_data

  return wrapper

def cleanMentorsList(field_name):

  """Clean method to check and validate list of mentor's link_ids.

  """

  @cleaning.check_field_is_empty(field_name)

  def wrapper(self):

    """Decorator wrapped method.

    """

    from soc.modules.ghop.logic.models.mentor import logic as ghop_mentor_logic

    mentors_list_str = cleaning.str2set(field_name)(self)

    filter = {

        'scope_path': self.cleaned_data.get('scope_path'),

        'status': 'active'

        }

    mentors_list = []

    for link_id in mentors_list_str:

      if not validate.isLinkIdFormatValid(link_id):

        raise forms.ValidationError(

            "%s is not a valid link ID." % link_id)

      filter['link_id'] = link_id

      if not ghop_mentor_logic.getFromKeyFields(filter):

        raise forms.ValidationError(

            'link_id "%s" is not a valid Mentor.' % link_id)

      mentors_list.append(link_id)

    return mentors_list

  return wrapper