#    Copyright (C) 2017  Alban Gruin
#
#    celcatsanitizer 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.
#
#    celcatsanitizer 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 celcatsanitizer; if not, write to the Free Software Foundation, Inc.,
#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

from django.test import TestCase
from django.utils import timezone

from .models import Course, Group, Timetable


class CourseTestCase(TestCase):
    def setUp(self):
        dt = timezone.now()

        self.timetable = Timetable(name="Test timetable 2", url="http://example.org/", slug="test-timetable2")
        self.timetable.save()

        cma = Group.objects.create(celcat_name="L1 info s2 - CMA", timetable=self.timetable)
        tda2 = Group.objects.create(celcat_name="L1 info s2 - TDA2", timetable=self.timetable)
        self.tpa21 = Group.objects.create(celcat_name="L1 info s2 - TPA21", timetable=self.timetable)

        cmb = Group.objects.create(celcat_name="L1 info s2 - CMB", timetable=self.timetable)
        tdb2 = Group.objects.create(celcat_name="L1 info s2 - TDB2", timetable=self.timetable)
        self.tpb21 = Group.objects.create(celcat_name="L1 info s2 - TPB21", timetable=self.timetable)

        for group in (cma, tda2, self.tpa21, cmb, tdb2, self.tpb21,):
            course = Course.objects.create(name="{0} course".format(group.name), type="cours", timetable=self.timetable, begin=dt, end=dt)
            course.groups.add(group)

    def test_get_courses_for_group(self):
        tpa21_courses = Course.objects.get_courses_for_group(self.tpa21)
        tpb21_courses = Course.objects.get_courses_for_group(self.tpb21)

        tpa21_course_names = ["L1 info s2 - CMA course", "L1 info s2 - TDA2 course", "L1 info s2 - TPA21 course"]
        tpb21_course_names = ["L1 info s2 - CMB course", "L1 info s2 - TDB2 course", "L1 info s2 - TPB21 course"]

        for courses, names in ((tpa21_courses, tpa21_course_names,), (tpb21_courses, tpb21_course_names,),):
            for course in courses:
                self.assertIn(course.name, names)
                names.remove(course.name)


class GroupTestCase(TestCase):
    def setUp(self):
        self.timetable = Timetable(name="Test timetable", url="http://example.com/", slug="test-timetable")
        self.timetable.save()

        Group.objects.create(celcat_name="L1 info s2 - CMA", timetable=self.timetable)
        Group.objects.create(celcat_name="L1 info s2 - TDA2", timetable=self.timetable)
        Group.objects.create(celcat_name="L1 info s2 - TPA21", timetable=self.timetable)

        Group.objects.create(celcat_name="L1 info s2 - CMB", timetable=self.timetable)
        Group.objects.create(celcat_name="L1 info s2 - TDB2", timetable=self.timetable)
        Group.objects.create(celcat_name="L1 info s2 - TPB21", timetable=self.timetable)

    def test_corresponds(self):
        cma = Group.objects.get(celcat_name="L1 info s2 - CMA", timetable=self.timetable)
        tda2 = Group.objects.get(celcat_name="L1 info s2 - TDA2", timetable=self.timetable)
        tpa21 = Group.objects.get(celcat_name="L1 info s2 - TPA21", timetable=self.timetable)

        cmb = Group.objects.get(celcat_name="L1 info s2 - CMB", timetable=self.timetable)
        tdb2 = Group.objects.get(celcat_name="L1 info s2 - TDB2", timetable=self.timetable)
        tpb21 = Group.objects.get(celcat_name="L1 info s2 - TPB21", timetable=self.timetable)

        self.assertTrue(cma.corresponds_to(*tda2.group_info)) # CMA corresponds to TDA2
        self.assertTrue(cma.corresponds_to(*tpa21.group_info)) # CMA corresponds to TPA21
        self.assertTrue(tda2.corresponds_to(*tpa21.group_info)) # TDA2 corresponds to TPA21

        self.assertTrue(cmb.corresponds_to(*tdb2.group_info)) # CMB corresponds to TDB2
        self.assertTrue(cmb.corresponds_to(*tpb21.group_info)) # CMB corresponds to TPB21
        self.assertTrue(tdb2.corresponds_to(*tpb21.group_info)) # TDB2 corresponds to TPB21

        self.assertFalse(cmb.corresponds_to(*tda2.group_info)) # CMB does not corresponds to TDA2
        self.assertFalse(cmb.corresponds_to(*tpa21.group_info)) # CMB does not corresponds to TPA21
        self.assertFalse(tdb2.corresponds_to(*tpa21.group_info)) # TDB2 does not corresponds to TPA21

        self.assertTrue(tda2.corresponds_to(*cma.group_info)) # TDA2 corresponds to CMA
        self.assertTrue(tpa21.corresponds_to(*cma.group_info)) # TPA21 corresponds to CMA
        self.assertTrue(tpa21.corresponds_to(*tda2.group_info)) # TPA21 corresponds to TDA2

        self.assertTrue(tdb2.corresponds_to(*cmb.group_info)) # TDB2 corresponds to CMB
        self.assertTrue(tpb21.corresponds_to(*cmb.group_info)) # TPB21 corresponds to CMB
        self.assertTrue(tpb21.corresponds_to(*tdb2.group_info)) # TPB21 corresponds to TDB2

        self.assertFalse(tda2.corresponds_to(*cmb.group_info)) # TDA2 does not corresponds to CMB
        self.assertFalse(tpa21.corresponds_to(*cmb.group_info)) # TPA21 does not corresponds to CMB
        self.assertFalse(tpa21.corresponds_to(*tdb2.group_info)) # TPA21 does not corresponds to TDB2

    def test_get(self):
        cma = Group.objects.get(name="L1 info s2 - CMA", timetable=self.timetable)
        tda2 = Group.objects.get(name="L1 info s2 - TDA2", timetable=self.timetable)
        tpa21 = Group.objects.get(name="L1 info s2 - TPA21", timetable=self.timetable)

        cmb = Group.objects.get(name="L1 info s2 - CMB", timetable=self.timetable)
        tdb2 = Group.objects.get(name="L1 info s2 - TDB2", timetable=self.timetable)
        tpb21 = Group.objects.get(name="L1 info s2 - TPB21", timetable=self.timetable)

        self.assertEqual(cma.celcat_name, "L1 info s2 - CMA")
        self.assertEqual(tda2.celcat_name, "L1 info s2 - TDA2")
        self.assertEqual(tpa21.celcat_name, "L1 info s2 - TPA21")

        self.assertEqual(cmb.celcat_name, "L1 info s2 - CMB")
        self.assertEqual(tdb2.celcat_name, "L1 info s2 - TDB2")
        self.assertEqual(tpb21.celcat_name, "L1 info s2 - TPB21")

    def test_parse(self):
        cma = Group.objects.get(celcat_name="L1 info s2 - CMA", timetable=self.timetable)
        tda2 = Group.objects.get(celcat_name="L1 info s2 - TDA2", timetable=self.timetable)
        tpa21 = Group.objects.get(celcat_name="L1 info s2 - TPA21", timetable=self.timetable)

        cmb = Group.objects.get(celcat_name="L1 info s2 - CMB", timetable=self.timetable)
        tdb2 = Group.objects.get(celcat_name="L1 info s2 - TDB2", timetable=self.timetable)
        tpb21 = Group.objects.get(celcat_name="L1 info s2 - TPB21", timetable=self.timetable)

        self.assertEqual(cma.group_info, (self.timetable.id, "L1 info s2", "A", None, None))
        self.assertEqual(tda2.group_info, (self.timetable.id, "L1 info s2", "A", 2, None))
        self.assertEqual(tpa21.group_info, (self.timetable.id, "L1 info s2", "A", 2, 1))

        self.assertEqual(cmb.group_info, (self.timetable.id, "L1 info s2", "B", None, None))
        self.assertEqual(tdb2.group_info, (self.timetable.id, "L1 info s2", "B", 2, None))
        self.assertEqual(tpb21.group_info, (self.timetable.id, "L1 info s2", "B", 2, 1))