## $Id: utils.py 11254 2014-02-22 15:46:03Z uli $
##
## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##
"""General helper functions and utilities for the application section.
"""

from time import time
import grok
from zope.component import getUtility
from zope.catalog.interfaces import ICatalog
from waeup.kofa.interfaces import MessageFactory as _
from waeup.kofa.applicants.interfaces import IApplicantsUtils
from waeup.kofa.applicants.workflow import (INITIALIZED,
    STARTED, PAID, ADMITTED, NOT_ADMITTED, SUBMITTED, CREATED)

class ApplicantsUtils(grok.GlobalUtility):
    """A collection of parameters and methods subject to customization.
    """
    grok.implements(IApplicantsUtils)

    APP_TYPES_DICT = {
      'app': ['General Studies', 'APP'],
      'special': ['Special Application', 'SPE'],
      }

    SEPARATORS_DICT = {
      'form.course1': _(u'Desired Study Courses'),
      'form.student_id': _(u'Process Data'),
      }

    def setPaymentDetails(self, container, payment, applicant):
        """Set the payment data of an applicant.
        """
        timestamp = ("%d" % int(time()*10000))[1:]
        session = str(container.year)
        try:
            session_config = grok.getSite()['configuration'][session]
        except KeyError:
            return _(u'Session configuration object is not available.'), None
        payment.p_id = "p%s" % timestamp
        payment.p_item = container.title
        payment.p_session = container.year
        payment.amount_auth = 0.0
        if container.prefix.startswith('special'):
            if applicant.special_application:
                fee_name = applicant.special_application + '_fee'
                payment.amount_auth = getattr(session_config, fee_name, 0.0)
                payment.p_category = applicant.special_application
            return
        payment.p_category = 'application'
        container_fee = container.application_fee
        if container_fee:
            payment.amount_auth = container_fee
            return
        payment.amount_auth = session_config.application_fee
        if payment.amount_auth in (0.0, None):
            return _('Amount could not be determined.'), None
        return

    def getApplicantsStatistics(self, container):
        """Count applicants in containers.
        """
        state_stats = {INITIALIZED:0, STARTED:0, PAID:0, SUBMITTED:0,
            ADMITTED:0, NOT_ADMITTED:0, CREATED:0}
        cat = getUtility(ICatalog, name='applicants_catalog')
        code = container.code
        year = int(code[-4:])
        target = code[:-4]
        mxcode = target + str(year + 1)
        for state in state_stats:
            state_stats[state] = len(cat.searchResults(
                state=(state, state),
                applicant_id=(code, mxcode)))
        return state_stats, None

    def filterCertificates(self, context, resultset):
        """Filter and sort certificates in AppCatCertificateSource.
        """
        resultlist = sorted(resultset, key=lambda value: value.code)
        curr_course = context.course1
        if curr_course is not None and curr_course not in resultlist:
            # display also current course even if certificate has been removed
            resultlist = [curr_course,] + resultlist
        return resultlist

    def getCertTitle(self, context, value):
        """Compose the titles in AppCatCertificateSource.
        """
        return "%s - %s" % (value.code, value.title)