## $Id: export.py 14622 2017-03-13 11:52:24Z henrik $
##
## 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
##
"""Exporters for student related stuff.
"""
import grok
from zope.component import getUtility
from waeup.kofa.utils.batching import ExporterBase
from waeup.kofa.utils.helpers import iface_names
from waeup.kofa.interfaces import IKofaUtils
from waeup.kofa.students.export import (get_levels,
    DataForLecturerExporter, StudentExporterBase,)
from waeup.aaue.students.interfaces import (
    ICustomStudent, ICustomStudentStudyCourse,
    ICustomStudentStudyLevel,
    ICustomCourseTicket,
    ICustomStudentOnlinePayment)
from kofacustom.nigeria.students.export import (
    NigeriaStudentExporter, NigeriaStudentStudyCourseExporter,
    NigeriaStudentStudyLevelExporter,
    NigeriaCourseTicketExporter, NigeriaStudentPaymentExporter)


class CustomStudentExporter(NigeriaStudentExporter):
    """Exporter for Students.
    """

    fields = tuple(sorted(iface_names(
        ICustomStudent, omit=['loggerInfo']))) + (
        'password', 'state', 'history', 'certcode', 'is_postgrad',
        'current_level', 'current_session')

class CustomStudentStudyCourseExporter(NigeriaStudentStudyCourseExporter):
    """Exporter for StudentStudyCourses.
    """

    fields = tuple(
        sorted(iface_names(ICustomStudentStudyCourse))) + (
            'matric_number', 'state', 'student_id',)

    def mangle_value(self, value, name, context=None):
        if name == 'certificate' and value is not None:
            # XXX: hopefully cert codes are unique site-wide
            value = value.code
        if name in ('student_id', 'matric_number', 'state') and context is not None:
            student = context.student
            value = getattr(student, name, None)
        return ExporterBase().mangle_value(value, name, context=context)

class CustomCourseTicketExporter(NigeriaCourseTicketExporter):
    """Exporter for CourseTickets.
    """

    fields = tuple(sorted(iface_names(ICustomCourseTicket) +
        ['level', 'code', 'level_session'])) + ('student_id',
        'certcode', 'display_fullname', 'matric_number')

    def mangle_value(self, value, name, context=None):
        """The mangler determines the student's id and fullname.
        """
        if context is not None:
            student = context.student
            if name in ('student_id', 'display_fullname', 'matric_number') \
                and student is not None:
                value = getattr(student, name, None)
        return ExporterBase().mangle_value(value, name, context=context)

class CustomStudentStudyLevelExporter(NigeriaStudentStudyLevelExporter):
    """Exporter for StudentStudyLevels.
    """
    #: Fieldnames considered by this exporter
    fields = tuple(sorted(iface_names(
        ICustomStudentStudyLevel))) + (
        'student_id', 'matric_number', 'number_of_tickets','certcode', 'cgpa')

    def mangle_value(self, value, name, context=None):
        """The mangler determines the student id, nothing else.
        """
        if name in ('student_id', 'matric_number') and context is not None:
            student = context.student
            value = getattr(student, name, None)
        elif name == 'cgpa':
            value = context.cumulative_params[0]
        return super(
            CustomStudentStudyLevelExporter, self).mangle_value(
            value, name, context=context)

class CustomStudentPaymentExporter(NigeriaStudentPaymentExporter):
    """Exporter for OnlinePayment instances.
    """

    fields = tuple(
        sorted(iface_names(
            ICustomStudentOnlinePayment, exclude_attribs=False,
            omit=['display_item']))) + (
            'student_id','state','current_session')

class CustomDataForLecturerExporter(DataForLecturerExporter):
    """
    """

    fields = ('matric_number', 'student_id','display_fullname',
              'level', 'code', 'level_session', 'ca', 'score')

class LevelReportDataExporter(grok.GlobalUtility, StudentExporterBase):
    """
    """
    grok.name('levelreportdata')

    fields = ('matric_number', 'display_fullname','level','level_session',
        'credits_counted', 'credits_passed','level_gpa',
        'failed_courses','not_taken_courses','cum_credits_taken',
        'cum_credits_passed','cgpa','remark')
    title = u'Summary of Result Data'

    def filter_func(self, x, **kw):
        return get_levels(x)

    def mangle_value(self, value, name, context=None):
        """The mangler determines the student id, nothing else.
        """
        if context is not None:
            student = context.student
            format_float = getUtility(IKofaUtils).format_float
            if name in ('matric_number',
                        'display_fullname',) and student is not None:
                value = getattr(student, name, None)
            elif name == 'credits_counted':
                value = context.gpa_params[1]
            elif name == 'credits_passed':
                value = context.passed_params[2]
            elif name == 'level_gpa':
                value = format_float(context.gpa_params[0], 3)
            elif name == 'failed_courses':
                value = context.passed_params[4]
            elif name == 'not_taken_courses':
                value = context.passed_params[5]
            elif name == 'cum_credits_taken':
                value = context.cumulative_params[1]
            elif name == 'cum_credits_passed':
                value = context.cumulative_params[4]
            elif name == 'cgpa':
                value = format_float(context.cumulative_params[0], 3)
            elif name == 'remark':
                value = getattr(context, 'remark', '')
        return super(
            LevelReportDataExporter, self).mangle_value(
            value, name, context=context)