## $Id: browser.py 11069 2014-02-11 07:49:25Z 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.schema.interfaces import ConstraintNotSatisfied
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, jsaction, KofaEditFormPage
from waeup.kofa.students.browser import (
    StudyLevelEditFormPage, StudyLevelDisplayFormPage,
    StudentBasePDFFormPage, ExportPDFCourseRegistrationSlipPage,
    CourseTicketDisplayFormPage, StudentTriggerTransitionFormPage,
    msave, emit_lock_message,
    StudentActivatePage, StudentDeactivatePage)
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,
    NigeriaExportPDFPaymentSlipPage,
    NigeriaExportPDFClearanceSlipPage,
    )

from waeup.uniben.students.interfaces import (
    ICustomStudentOnlinePayment, ICustomStudentStudyCourse,
    ICustomStudentStudyLevel)
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
    """

    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 CustomExportPDFPaymentSlipPage(NigeriaExportPDFPaymentSlipPage):
    """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 CustomExportPDFClearanceSlipPage(NigeriaExportPDFClearanceSlipPage):
    """Deliver a PDF slip of the context.
    """

    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 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 CustomExportPDFCourseRegistrationSlipPage(
    ExportPDFCourseRegistrationSlipPage):
    """Deliver a PDF slip of the context.
    """

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

    @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 = []
        contenttitle = []
        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 UnibenExportPDFCourseResultSlipPage(ExportPDFCourseRegistrationSlipPage):
    """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 = []
        contenttitle = []
        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 CustomStudentActivatePage(StudentActivatePage):
    """ 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 CustomStudentDeactivatePage(StudentDeactivatePage):
    """ 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