## $Id: browser.py 13723 2016-02-23 17:36:46Z henrik $
##
## Copyright (C) 2012 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
##
import grok
from zope.i18n import translate
from zope.security import checkPermission
from zope.schema.interfaces import ConstraintNotSatisfied
from zope.formlib.textwidgets import BytesDisplayWidget
from zope.component import getUtility
from hurry.workflow.interfaces import IWorkflowInfo
from waeup.kofa.interfaces import (
    REQUESTED, IExtFileStore, IKofaUtils, IObjectHistory)
from waeup.kofa.widgets.datewidget import FriendlyDatetimeDisplayWidget
from waeup.kofa.browser.layout import action, KofaEditFormPage, UtilityView
from waeup.kofa.students.browser import (
    StudyLevelEditFormPage, StudyLevelDisplayFormPage,
    StudentBasePDFFormPage, ExportPDFCourseRegistrationSlip,
    CourseTicketDisplayFormPage, StudentTriggerTransitionFormPage,
    msave, emit_lock_message,
    StudentActivateView, StudentDeactivateView,
    ExportPDFTranscriptSlip,
    PaymentsManageFormPage)
from waeup.kofa.students.workflow import (CREATED, ADMITTED, PAID,
    CLEARANCE, REQUESTED, RETURNING, CLEARED, REGISTERED, VALIDATED,
    GRADUATED, TRANSCRIPT, FORBIDDEN_POSTGRAD_TRANS)
from waeup.kofa.students.interfaces import IStudentsUtils, ICourseTicket
from waeup.kofa.students.workflow import FORBIDDEN_POSTGRAD_TRANS
from kofacustom.nigeria.students.browser import (
    NigeriaOnlinePaymentDisplayFormPage,
    NigeriaStudentBaseManageFormPage,
    NigeriaStudentClearanceEditFormPage,
    NigeriaOnlinePaymentAddFormPage,
    NigeriaExportPDFPaymentSlip,
    NigeriaExportPDFClearanceSlip,
    NigeriaExportPDFBedTicketSlip,
    NigeriaStudentPersonalDisplayFormPage,
    NigeriaStudentPersonalManageFormPage,
    NigeriaStudentPersonalEditFormPage
    )

from waeup.uniben.students.interfaces import (
    ICustomStudent,
    ICustomStudentOnlinePayment,
    ICustomStudentStudyCourse,
    ICustomStudentStudyLevel,
    ICustomUGStudentClearance,
    ICustomPGStudentClearance,
    ICustomStudentPersonal,
    ICustomStudentPersonalEdit)
from waeup.uniben.interfaces import MessageFactory as _

class CustomOnlinePaymentDisplayFormPage(NigeriaOnlinePaymentDisplayFormPage):
    """ Page to view an online payment ticket
    """
    grok.context(ICustomStudentOnlinePayment)
    form_fields = grok.AutoFields(ICustomStudentOnlinePayment).omit(
        'provider_amt', 'gateway_amt', 'thirdparty_amt', 'p_item')
    form_fields[
        'creation_date'].custom_widget = FriendlyDatetimeDisplayWidget('le')
    form_fields[
        'payment_date'].custom_widget = FriendlyDatetimeDisplayWidget('le')

class CustomStudentClearanceEditFormPage(NigeriaStudentClearanceEditFormPage):
    """ View to edit student clearance data by student
    """

    @property
    def form_fields(self):
        if self.context.is_postgrad:
            form_fields = grok.AutoFields(ICustomPGStudentClearance).omit(
            'clearance_locked', 'nysc_location', 'clr_code', 'officer_comment',
            'physical_clearance_date')
        else:
            form_fields = grok.AutoFields(ICustomUGStudentClearance).omit(
            'clearance_locked', 'clr_code', 'officer_comment',
            'physical_clearance_date')
            form_fields['date_of_birth'].for_display = True
            form_fields['nationality'].for_display = True
            form_fields['lga'].for_display = True
        return form_fields

    def dataNotComplete(self):
        store = getUtility(IExtFileStore)
        if not store.getFileByContext(self.context, attr=u'birth_certificate.jpg'):
            return _('No birth certificate uploaded.')
        if not store.getFileByContext(self.context, attr=u'ref_let.jpg'):
            return _('No guarantor/referee letter uploaded.')
        if not store.getFileByContext(self.context, attr=u'acc_let.jpg'):
            return _('No acceptance letter uploaded.')
        if not store.getFileByContext(self.context, attr=u'fst_sit_scan.jpg'):
            return _('No first sitting result uploaded.')
        #if not store.getFileByContext(self.context, attr=u'scd_sit_scan.jpg'):
        #    return _('No second sitting result uploaded.')
        if not store.getFileByContext(self.context, attr=u'secr_cults.jpg'):
            return _('No affidavit of non-membership of secret cults uploaded.')
        return False

class CustomOnlinePaymentAddFormPage(NigeriaOnlinePaymentAddFormPage):
    """ Page to add an online payment ticket
    """
    form_fields = grok.AutoFields(ICustomStudentOnlinePayment).select(
        'p_category')

class CustomExportPDFPaymentSlip(NigeriaExportPDFPaymentSlip):
    """Deliver a PDF slip of the context.
    """
    grok.context(ICustomStudentOnlinePayment)
    form_fields = grok.AutoFields(ICustomStudentOnlinePayment).omit(
        'provider_amt', 'gateway_amt', 'thirdparty_amt', 'p_item')
    form_fields['creation_date'].custom_widget = FriendlyDatetimeDisplayWidget('le')
    form_fields['payment_date'].custom_widget = FriendlyDatetimeDisplayWidget('le')


class CustomExportPDFClearanceSlip(NigeriaExportPDFClearanceSlip):
    """Deliver a PDF slip of the context.
    """

    @property
    def omit_fields(self):
        omit_fields = ('password', 'suspended', 'suspended_comment',
                       'phone', 'adm_code', 'email', 'date_of_birth',
                       'flash_notice')
        if self.context.faccode == 'JUPEB':
            omit_fields += ('faculty', 'department')
        return omit_fields

    @property
    def label(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        line0 = ''
        if self.context.faccode == 'JUPEB':
            line0 = 'Joint Universities Preliminary Examinations Board (JUPEB)\n'
        line1 = translate(_('Clearance Slip of'),
            'waeup.kofa', target_language=portal_language) \
            + ' %s' % self.context.display_fullname
        return '%s%s' % (line0, line1)

    def _sigsInFooter(self):
        isStudent = getattr(
            self.request.principal, 'user_type', None) == 'student'
        if not isStudent and self.context.state in (CLEARED, RETURNING):
            return (_('Date, Student Signature'),
                    _('Date, Clearance Officer Signature'),
                    )
        return ()

    def render(self):
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)
        return students_utils.renderPDF(
            self, 'clearance_slip.pdf',
            self.context.student, studentview, signatures=self._signatures(),
            sigs_in_footer=self._sigsInFooter(), show_scans=False,
            omit_fields=self.omit_fields)


class ExportClearanceInvitationSlip(UtilityView, grok.View):
    """Deliver an invitation letter to physical clearance.

    This form page is available only in Uniben.
    """
    grok.context(ICustomStudent)
    grok.name('clearance_invitation_slip.pdf')
    grok.require('waeup.viewStudent')
    prefix = 'form'

    label = u'Invitation Letter for Physical Clearance'

    omit_fields = (
        'suspended', 'phone', 'email',
        'adm_code', 'suspended_comment',
        'date_of_birth', 'current_level',
        'department', 'current_mode',
        'entry_session', 'matric_number', 'sex',
        'flash_notice')

    form_fields = []

    @property
    def note(self):
        if self.context.physical_clearance_date:
            return """
<br /><br /><br /><br /><font size='12'>
Dear %s,
<br /><br /><br />
You are invited for your physical clearance on:
<br /><br />
<strong>%s</strong>.
<br /><br />
Please bring along this letter of invitation to the University Main Auditorium
<br /><br />
on your clearance date.
<br /><br /><br />
Signed,
<br /><br />
The Registrar<br />
</font>

""" % (self.context.display_fullname, self.context.physical_clearance_date)
        return


    def update(self):
        if self.context.student.state != REQUESTED \
            or not  self.context.student.physical_clearance_date:
            self.flash(_('Forbidden'), type="warning")
            self.redirect(self.url(self.context))

    def render(self):
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)
        return students_utils.renderPDF(
            self, 'clearance_invitation_slip',
            self.context.student, studentview,
            omit_fields=self.omit_fields,
            note=self.note)

class ExportExaminationScheduleSlip(UtilityView, grok.View):
    """Deliver a examination schedule slip.

    This form page is available only in Uniben.
    """
    grok.context(ICustomStudent)
    grok.name('examination_schedule_slip.pdf')
    grok.require('waeup.viewStudent')
    prefix = 'form'

    label = u'Examination Schedule Slip'

    omit_fields = (
        'suspended', 'phone', 'email',
        'adm_code', 'suspended_comment',
        'date_of_birth', 'current_level',
        'current_mode',
        'entry_session',
        'flash_notice')

    form_fields = []

    @property
    def note(self):
        return """
<br /><br /><br /><br /><font size='12'>
Your examination date, time and venue is scheduled as follows:
<br /><br />
<strong>%s</strong>
</font>

""" % self.context.flash_notice
        return


    def update(self):
        if not self.context.flash_notice \
            or not 'exam' in self.context.flash_notice.lower():
            self.flash(_('Forbidden'), type="warning")
            self.redirect(self.url(self.context))

    def render(self):
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)
        return students_utils.renderPDF(
            self, 'examination_schedule_slip',
            self.context.student, studentview,
            omit_fields=self.omit_fields,
            note=self.note)

class CustomStudentPersonalDisplayFormPage(
    NigeriaStudentPersonalDisplayFormPage):
    """ Page to display student personal data
    """

    form_fields = grok.AutoFields(ICustomStudentPersonal)
    form_fields['perm_address'].custom_widget = BytesDisplayWidget
    form_fields['next_kin_address'].custom_widget = BytesDisplayWidget
    form_fields[
        'personal_updated'].custom_widget = FriendlyDatetimeDisplayWidget('le')

class CustomStudentPersonalManageFormPage(
    NigeriaStudentPersonalManageFormPage):
    """ Page to manage personal data
    """

    form_fields = grok.AutoFields(ICustomStudentPersonal)
    form_fields['personal_updated'].for_display = True
    form_fields[
        'personal_updated'].custom_widget = FriendlyDatetimeDisplayWidget('le')

class CstomStudentPersonalEditFormPage(NigeriaStudentPersonalEditFormPage):
    """ Page to edit personal data
    """
    form_fields = grok.AutoFields(
        ICustomStudentPersonalEdit).omit('personal_updated')

class StudyCourseCOEditFormPage(KofaEditFormPage):
    """ Page to edit the student study course data by clearance officers.

    This form page is available only in Uniben.
    """
    grok.context(ICustomStudentStudyCourse)
    grok.name('edit_level')
    grok.require('waeup.clearStudent')
    label = _('Edit current level')
    pnav = 4
    form_fields = grok.AutoFields(
        ICustomStudentStudyCourse).select('current_level')

    def update(self):
        if not (self.context.is_current and
            self.context.student.state == REQUESTED):
            emit_lock_message(self)
            return
        super(StudyCourseCOEditFormPage, self).update()
        return

    @action(_('Save'), style='primary')
    def save(self, **data):
        try:
            msave(self, **data)
        except ConstraintNotSatisfied:
            # The selected level might not exist in certificate
            self.flash(_('Current level not available for certificate.'))
            return
        #notify(grok.ObjectModifiedEvent(self.context.__parent__))
        return

class CustomStudyLevelEditFormPage(StudyLevelEditFormPage):
    """ Page to edit the student study level data by students.

    """
    grok.template('studyleveleditpage')

class CustomStudyLevelDisplayFormPage(StudyLevelDisplayFormPage):
    """ Page to display student study levels
    """
    grok.template('studylevelpage')

class CustomExportPDFCourseRegistrationSlip(
    ExportPDFCourseRegistrationSlip):
    """Deliver a PDF slip of the context.
    """

    form_fields = grok.AutoFields(ICustomStudentStudyLevel).omit(
        'level_verdict', 'gpa', 'level')

    def update(self):
        if self.context.student.state != REGISTERED \
            or self.context.student.current_level != self.context.level:
            self.flash(_('Forbidden'), type="warning")
            self.redirect(self.url(self.context))

    @property
    def tabletitle(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        tabletitle = []
        tabletitle.append(translate(_('1st Semester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('2nd Semester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('Level Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('1st Trimester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('2nd Trimester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('3rd Trimester Courses'), 'waeup.kofa',
            target_language=portal_language))
        return tabletitle

    def render(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        Code = translate('Code', 'waeup.kofa', target_language=portal_language)
        Title = translate('Title', 'waeup.kofa', target_language=portal_language)
        Dept = translate('Dept.', 'waeup.kofa', target_language=portal_language)
        Faculty = translate('Faculty', 'waeup.kofa', target_language=portal_language)
        Cred = translate(_('Credits'), 'waeup.uniben', target_language=portal_language)
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)

        tabledata = []
        tableheader = []
        for i in range(1,7):
            tabledata.append(sorted(
                [value for value in self.context.values() if value.semester == i],
                key=lambda value: str(value.semester) + value.code))
            tableheader.append([(Code,'code', 2.5),
                             (Title,'title', 5),
                             (Dept,'dcode', 1.5), (Faculty,'fcode', 1.5),
                             (Cred, 'credits', 1.5),
                             ])
        return students_utils.renderPDF(
            self, 'course_registration_slip.pdf',
            self.context.student, studentview,
            tableheader=tableheader,
            tabledata=tabledata,
            omit_fields=self.omit_fields
            )

class UnibenExportPDFCourseResultSlip(ExportPDFCourseRegistrationSlip):
    """Deliver a PDF slip of the context.
    """

    grok.name('course_result_slip.pdf')

    @property
    def tabletitle(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        tabletitle = []
        tabletitle.append(translate(_('1st Semester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('2nd Semester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('Level Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('1st Trimester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('2nd Trimester Courses'), 'waeup.kofa',
            target_language=portal_language))
        tabletitle.append(translate(_('3rd Trimester Courses'), 'waeup.kofa',
            target_language=portal_language))
        return tabletitle

    @property
    def label(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        lang = self.request.cookies.get('kofa.language', portal_language)
        level_title = translate(self.context.level_title, 'waeup.kofa',
            target_language=lang)
        return translate(_('Course Result Slip'),
            'waeup.uniben', target_language=portal_language) \
            + ' %s' % level_title

    def render(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        Code = translate('Code', 'waeup.kofa', target_language=portal_language)
        Title = translate('Title', 'waeup.kofa', target_language=portal_language)
        Dept = translate('Dept.', 'waeup.kofa', target_language=portal_language)
        Faculty = translate('Faculty', 'waeup.kofa', target_language=portal_language)
        Cred = translate(_('Credits'), 'waeup.uniben', target_language=portal_language)
        Grade = translate('Grade', 'waeup.kofa', target_language=portal_language)
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)

        tabledata = []
        tableheader = []
        for i in range(1,7):
            tabledata.append(sorted(
                [value for value in self.context.values() if value.semester == i],
                key=lambda value: str(value.semester) + value.code))
            tableheader.append([(Code,'code', 2.5),
                             (Title,'title', 5),
                             (Dept,'dcode', 1.5), (Faculty,'fcode', 1.5),
                             (Cred, 'credits', 1.5),
                             (Grade, 'grade', 1.5),
                             ])
        return students_utils.renderPDF(
            self, 'course_registration_slip.pdf',
            self.context.student, studentview,
            tableheader=tableheader,
            tabledata=tabledata,
            omit_fields=self.omit_fields
            )

class CustomCourseTicketDisplayFormPage(CourseTicketDisplayFormPage):
    """ Page to display course tickets
    """
    form_fields = grok.AutoFields(ICourseTicket).omit('score')

class CustomStudentActivateView(StudentActivateView):
    """ Activate student account
    """

    def update(self):
        self.context.suspended = False
        self.context.writeLogMessage(self, 'account activated')
        history = IObjectHistory(self.context)
        history.addMessage('Student account activated', user='undisclosed')
        self.flash(_('Student account has been activated.'))
        self.redirect(self.url(self.context))
        return

class CustomStudentDeactivateView(StudentDeactivateView):
    """ Deactivate student account
    """
    def update(self):
        self.context.suspended = True
        self.context.writeLogMessage(self, 'account deactivated')
        history = IObjectHistory(self.context)
        history.addMessage('Student account deactivated', user='undisclosed')
        self.flash(_('Student account has been deactivated.'))
        self.redirect(self.url(self.context))
        return

class CustomExportPDFTranscriptSlip(ExportPDFTranscriptSlip):
    """Deliver a PDF slip of the context.
    """

    def _sigsInFooter(self):
        return []
        #return (_('CERTIFIED TRUE COPY'),)

    def _signatures(self):
        return ([(
            'Current HD<br /> D. R. (Exams & Records)<br /> '
            'For: Registrar')],)

    def render(self):
        portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
        Term = translate(_('Term'), 'waeup.kofa', target_language=portal_language)
        Code = translate(_('Code'), 'waeup.kofa', target_language=portal_language)
        Title = translate(_('Title'), 'waeup.kofa', target_language=portal_language)
        Cred = translate(_('Credits'), 'waeup.kofa', target_language=portal_language)
        #Score = translate(_('Score'), 'waeup.kofa', target_language=portal_language)
        Grade = translate(_('Grade'), 'waeup.kofa', target_language=portal_language)
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)

        tableheader = [(Code,'code', 2.5),
                         (Title,'title', 8.5),
                         (Term, 'semester', 1.5),
                         (Cred, 'credits', 1.5),
                         #(Score, 'score', 1.5),
                         (Grade, 'grade', 1.5),
                         ]

        return students_utils.renderPDFTranscript(
            self, 'transcript.pdf',
            self.context.student, studentview,
            omit_fields=self.omit_fields,
            tableheader=tableheader,
            signatures=self._signatures(),
            sigs_in_footer=self._sigsInFooter(),
            )

class CustomExportPDFBedTicketSlip(NigeriaExportPDFBedTicketSlip):
    """Deliver a PDF slip of the context.
    """

    omit_fields = ('password', 'suspended', 'suspended_comment',
        'phone', 'adm_code', 'email', 'date_of_birth', 'flash_notice')

    def render(self):
        studentview = StudentBasePDFFormPage(self.context.student,
            self.request, self.omit_fields)
        students_utils = getUtility(IStudentsUtils)

        note = """
<br /><br /><br /><br /><br /><font size="14">
Please endeavour to pay your hostel maintenance charge within <br /><br />
4 days of being allocated a space or else you are deemed to have <br /><br />
voluntarily forfeited it and it goes back into circulation to be <br /><br />
available for booking afresh!</font>
"""

        return students_utils.renderPDF(
            self, 'bed_allocation_slip.pdf',
            self.context.student, studentview,
            omit_fields=self.omit_fields,
            note=note)

class CustomPaymentsManageFormPage(PaymentsManageFormPage):
    """ Page to manage the student payments. This manage form page is for
    both students and students officers. Uniben does not allow students
    to remove any payment ticket.
    """
    @property
    def manage_payments_allowed(self):
        return checkPermission('waeup.manageStudent', self.context)