#!/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.

"""This module contains the Student Proposal Model.

"""

__authors__ = [

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

]

from google.appengine.ext import db

from django.utils.translation import ugettext

import soc.models.linkable

import soc.models.mentor

import soc.models.organization

import soc.models.program

# define the [min_score, max_score] and the name for the RankList

DEF_SCORE = [-1000, 1000]

DEF_RANKER_NAME = 'student_app_ranker'

class StudentProposal(soc.models.linkable.Linkable):

  """Model for a student proposal used in the GSoC workflow.

  """

  #: Required field indicating the "title" of the proposal

  title = db.StringProperty(required=True,

      verbose_name=ugettext('Title'))

  title.help_text = ugettext('Title of the proposal')

  #: required, text field used for different purposes,

  #: depending on the specific type of the proposal

  abstract = db.TextProperty(required=True)

  abstract.help_text = ugettext(

      'Short abstract, summary, or snippet;'

      ' 500 characters or less, plain text displayed publicly')

  #: Required field containing the content of the proposal.

  content = db.TextProperty(required=True)

  content.help_text = ugettext('This contains your actual proposal')

  #: an URL linking to more information about this students proposal

  additional_info = db.URLProperty(required=False)

  additional_info.help_text = ugettext(

      'Link to a resource containing more information about your proposal')

  #: A property containing which mentor has assigned himself to this proposal.

  #: Only a proposal with an assigned mentor can be turned into 

  #: a accepted proposal. A proposal can only have one mentor.

  mentor = db.ReferenceProperty(reference_class=soc.models.mentor.Mentor,

                                required=False, 

                                collection_name='student_proposals')

  #: A property containing a list of possible Mentors for this proposal

  possible_mentors = db.ListProperty(item_type=db.Key, default=[])

  #: the current score of this proposal, used to determine which proposals

  #: should be assigned a project slot.

  score = db.IntegerProperty(required=True, default=0)

  #: the status of this proposal

  #: new : the proposal has not been ranked/scored yet

  #: pending: the proposal is in the process of being ranked/scored

  #: accepted: the proposal has been assigned a project slot

  #: rejected: the proposal has not been assigned a slot

  #: invalid: the student or org admin marked this as an invalid proposal.

  status = db.StringProperty(required=True, default='new',

      choices=['new', 'pending', 'accepted', 'rejected', 'invalid'])

  #: organization to which this proposal is directed

  org = db.ReferenceProperty(

      reference_class=soc.models.organization.Organization,

      required=True, collection_name='student_proposals')

  #: program in which this proposal has been created

  program = db.ReferenceProperty(reference_class=soc.models.program.Program,

                                 required=True, 

                                 collection_name='student_proposals')

  #: date when the proposal was created

  created_on = db.DateTimeProperty(required=True, auto_now_add=True)

  #: date when the proposal was last modified, should be set manually on edit

  last_modified_on = db.DateTimeProperty(required=True, auto_now_add=True)