"""Vocabularies and sources for the application section.
"""
from datetime import datetime
from zope.component import getUtility
from zope.catalog.interfaces import ICatalog
from zc.sourcefactory.basic import BasicSourceFactory
from zc.sourcefactory.contextual import BasicContextualSourceFactory
from waeup.sirp.interfaces import SimpleWAeUPVocabulary
from waeup.sirp.students.lgas import LGAS
from waeup.sirp.students.vocabularies import (
    CertificateSource, GenderSource)

#: Types of applications we support.
APPLICATION_TYPES = (
    ('General Studies', 'app','APP'),
    ('Pre-NCE Programme', 'prence','PRE'),
    ('Post UME Screening Test', 'pume','PUME'),
    ('Post UDE Screening', 'pude','PUDE'),
    ('Part Time Degree in Education', 'sandwich','SAND'),
    ('Part-Time Degree Programmes', 'pt','PTP'),
    ('Diploma Programmes', 'dp','DPP'),
    ('PCE Screening', 'pce','PCE'),
    ('Certificate Programmes', 'ct','CTP'),
    ('Common Entry Screening Test', 'cest','CEST'),
    )

#: A :class:`waeup.sirp.interfaces.SimpleWAeUPVocabulary` of supported
#: application or screening types.
application_types_vocab = SimpleWAeUPVocabulary(
    *[(x[0],x[1]) for x in APPLICATION_TYPES])
application_pins_vocab = SimpleWAeUPVocabulary(
    *[(u"%s (%s)" % (x[2],x[0]),x[2]) for x in APPLICATION_TYPES])


class AppCatCertificateSource(CertificateSource):
    """An application certificate source delivers all courses which belong to
    a certain application_category.
    """
    def getValues(self, context):
        appcat = context.__parent__.application_category
        catalog = getUtility(ICatalog, name='certificates_catalog')
        return sorted(list(
                catalog.searchResults(
                    code=('', 'z*'),
                    application_category=(appcat,appcat))),
                    key=lambda value: value.code)