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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import datetime
import lxml.etree
import os
import simplejson as json
test_path = os.path.abspath(__file__)
test_dir_path = os.path.dirname(test_path) + os.sep

from django.conf import settings
from django.core.urlresolvers import reverse
from django.template import Context
from django.test import TestCase

from chimere.models import Area, Icon, Importer, Category, SubCategory, Marker,\
                           Route, News
from chimere.forms import MarkerForm
from chimere.templatetags.chimere_tags import display_news
from chimere.utils import ShapefileManager

def areas_setup():
    area_1 = Area.objects.create(name='area 1', urn='area-1', order=1,
                available=True,
                upper_left_corner='SRID=4326;POINT(-4.907753 48.507656)',
                lower_right_corner='SRID=4326;POINT(-4.049447 48.279688)')
    area_2 = Area.objects.create(name='area 2', urn='area-2', order=2,
                available=True,
                upper_left_corner='SRID=4326;POINT(-3 47.5)',
                lower_right_corner='SRID=4326;POINT(-2.5 47)')
    return [area_1]

def subcategory_setup():
    category = Category.objects.create(name='Main category',
                        available=True,
                        order=1,
                        description='')

    icon = Icon.objects.create(name='Default icon',
                               image='icons/marker.png',
                               height=25,
                               width=21)

    subcategory_1 = SubCategory.objects.create(category=category,
                        name='Subcategory 1',
                        available=True,
                        icon=icon,
                        order=1,
                        item_type='M',)

    subcategory_2 = SubCategory.objects.create(category=category,
                        name='Subcategory 2',
                        available=True,
                        icon=icon,
                        order=1,
                        item_type='M',)
    return [subcategory_1, subcategory_2]

def marker_setup(sub_categories=[]):
    if not sub_categories:
        sub_categories = subcategory_setup()
    current_date = datetime.datetime.now()
    markers = []
    marker_1 = Marker.objects.create(name="Marker 1", status='A',
                                     point='SRID=4326;POINT(-4.5 48.4)',
                                     available_date=current_date)
    marker_1.categories.add(sub_categories[0])
    markers.append(marker_1)
    marker_2 = Marker.objects.create(name="Marker 2", status='A',
                                     point='SRID=4326;POINT(-3.5 48.4)',
                                     is_front_page=True,
                                     available_date=current_date,
                                     start_date=current_date)
    marker_2.categories.add(sub_categories[1])
    markers.append(marker_2)
    marker_3 = Marker.objects.create(name="Marker 3", status='A',
                      point='SRID=4326;POINT(-4.5 48.45)',
                      is_front_page=True,
                      available_date=current_date - datetime.timedelta(days=60),
                      start_date=current_date - datetime.timedelta(days=60),
                      end_date=current_date - datetime.timedelta(days=30))
    marker_3.categories.add(sub_categories[1])
    markers.append(marker_3)
    return markers

class ImporterTest:
    def test_get(self):
        nb_by_cat = {}
        for importer, awaited_nb in self.marker_importers:
            nb, nb_updated, res = importer.manager.get()
            if awaited_nb == None:
                continue
            self.assertEqual(nb, awaited_nb)
            self.assertEqual(nb_updated, 0)
            for cat in importer.categories.all():
                if cat not in nb_by_cat:
                    nb_by_cat[cat] = 0
                nb_by_cat[cat] += nb
        for cat in nb_by_cat:
            nb = max([Marker.objects.filter(categories__pk=cat.pk).count(),
                      Route.objects.filter(categories__pk=cat.pk).count()])
            self.assertEqual(nb_by_cat[cat], nb)

        # update
        for importer, awaited_nb in self.marker_importers:
            nb, nb_updated, res = importer.manager.get()
            if awaited_nb == None:
                continue
            self.assertEqual(nb, 0)

class KMLImporterTest(TestCase, ImporterTest):
    def setUp(self):
        subcategory_1, subcategory_2 = subcategory_setup()
        importer1 = Importer.objects.create(importer_type='KML',
            source=test_dir_path+'tests/sample.kml',
            filtr="Category 1")
        importer1.categories.add(subcategory_1)

        importer2 = Importer.objects.create(importer_type='KML',
         source=test_dir_path+'tests/sample.kml',
         filtr="Subcategory 1")
        importer2.categories.add(subcategory_1)
        importer2.categories.add(subcategory_2)

        importer3 = Importer.objects.create(importer_type='KML',
         source=test_path+'tests/sample.kml',
         filtr="Subcategory 3")
        importer3.categories.add(subcategory_2)

        importer4 = Importer.objects.create(importer_type='KML',
         source=test_dir_path+'tests/sample.kml.zip', zipped=True)
        importer4.categories.add(subcategory_1)

        self.marker_importers = [(importer1, 1), (importer2, 3), (importer3, 0),
                                 (importer4, 4)]

class ShapefileImporterTest(TestCase, ImporterTest):
    def setUp(self):
        subcategory_1, subcategory_2 = subcategory_setup()
        importer = Importer.objects.create(importer_type='SHP',
            source=test_dir_path+'tests/sample_nodes.shp.zip', zipped=True)
        importer.categories.add(subcategory_1)
        importer2 = Importer.objects.create(importer_type='SHP',
            source=test_dir_path+'tests/sample_ways.shp.zip',
            zipped=True)
        importer2.categories.add(subcategory_2)

        self.marker_importers = [(importer, 29),
                                 (importer2, 5),]
        self.markers = marker_setup()

    def test_export(self):
        filename, zip_stream = ShapefileManager.export(Marker.objects.all())

class OSMImporterTest(TestCase, ImporterTest):
    def setUp(self):
        subcategory_1, subcategory_2 = subcategory_setup()
        markers = marker_setup()
        importer1 = Importer.objects.create(importer_type='OSM',
            source=test_dir_path+'tests/sample_nodes.osm')
        importer1.categories.add(subcategory_1)

        importer2 = Importer.objects.create(importer_type='OSM',
            source=test_dir_path+'tests/sample_ways.osm')
        importer2.categories.add(subcategory_2)
        importer3 = Importer.objects.create(importer_type='OSM',
            source='http://open.mapquestapi.com/xapi/api/0.6/way'\
                   '[highway=motorway]'\
                   '[bbox=2.0393839939136975,48.68908639634696,'\
                   '2.3140421970277316,48.790972349390415]')

        self.marker_importers = [(importer1, 19), (importer2, 8),
                                 (importer3, None)]

class GeoRSSImporterTest(TestCase, ImporterTest):
    def setUp(self):
        subcategory_1, subcategory_2 = subcategory_setup()
        importer1 = Importer.objects.create(importer_type='RSS',
                         source=test_dir_path+'tests/georss.xml')
        importer1.categories.add(subcategory_1)

        self.marker_importers = [(importer1, 1)]

class FeedsTest(TestCase):
    def setUp(self):
        self.areas = areas_setup()
        self.markers = marker_setup()

    def test_rss(self):
        # global
        url = reverse('chimere:feeds-global')
        response = self.client.get(url)
        self.assertEqual(200, response.status_code)
        doc = lxml.etree.fromstring(response.content)
        self.assertEqual(int(doc.xpath('count(//item)')), len(self.markers))
        url = reverse('chimere:feeds-areaid', args=('', self.areas[0].pk))
        response = self.client.get(url)
        self.assertEqual(200, response.status_code)
        doc = lxml.etree.fromstring(response.content)
        self.assertEqual(int(doc.xpath('count(//item)')), 2)

class MarkerFormTest(TestCase):
    def setUp(self):
        self.subcategories = subcategory_setup()

    def test_marker_creation(self):
        current_date = datetime.datetime.now()
        # end_date before start_date
        data = {'name':"Marker 1", 'status':'A', 'available_date':current_date,
                'point':'SRID=4326;POINT(-4.5 48.4)', 'start_date':current_date,
                'end_date':current_date - datetime.timedelta(1),
                'categories':[self.subcategories[0].pk]}
        form = MarkerForm(data)
        self.assertEqual(form.is_valid(), False)

class CategoryTest(TestCase):
    def setUp(self):
        self.areas = areas_setup()
        self.markers = marker_setup()

    def test_dynamic_evaluation(self):
        cats = self.areas[0].getCategories(status='A', filter_available=True)
        self.assertEqual(len(cats), 1)

    def test_get_all_categories(self):
        url = reverse('chimere:get_all_categories')
        response = self.client.get(url)
        self.assertEqual(200, response.status_code)
        cats = json.loads(response.content)['categories']
        self.assertEqual(len(cats), 2)

class NewsTest(TestCase):
    def setUp(self):
        self.areas = areas_setup()
        self.markers = marker_setup()
        self.news = []
        self.news.append(News.objects.create(is_front_page=True,
                            title=u"Test news 1", available=True))
        self.news.append(News.objects.create(is_front_page=True,
                            title=u"Test news 2", available=False))

    def test_news_display(self):
        context = display_news(Context({}))
        self.assertEqual(len(context['news_lst']), 2)
        context = display_news(Context({'area_name':'area-2'}))
        self.assertEqual(len(context['news_lst']), 1)