from __future__ import unicode_literals

import os
from datetime import date
from unittest import skipUnless

from django.apps import app_cache
from django.conf import settings
from django.contrib.sitemaps import Sitemap, GenericSitemap
from django.contrib.sites.models import Site
from django.core.exceptions import ImproperlyConfigured
from django.test.utils import override_settings
from django.utils.formats import localize
from django.utils._os import upath
from django.utils.translation import activate, deactivate

from .base import TestModel, SitemapTestsBase


class HTTPSitemapTests(SitemapTestsBase):

    def test_simple_sitemap_index(self):
        "A simple sitemap index can be rendered"
        response = self.client.get('/simple/index.xml')
        expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap><loc>%s/simple/sitemap-simple.xml</loc></sitemap>
</sitemapindex>
""" % self.base_url
        self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    @override_settings(
        TEMPLATE_DIRS=(os.path.join(os.path.dirname(upath(__file__)), 'templates'),)
    )
    def test_simple_sitemap_custom_index(self):
        "A simple sitemap index can be rendered with a custom template"
        response = self.client.get('/simple/custom-index.xml')
        expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<!-- This is a customised template -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap><loc>%s/simple/sitemap-simple.xml</loc></sitemap>
</sitemapindex>
""" % self.base_url
        self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    def test_simple_sitemap_section(self):
        "A simple sitemap section can be rendered"
        response = self.client.get('/simple/sitemap-simple.xml')
        expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>%s/location/</loc><lastmod>%s</lastmod><changefreq>never</changefreq><priority>0.5</priority></url>
</urlset>
""" % (self.base_url, date.today())
        self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    def test_simple_sitemap(self):
        "A simple sitemap can be rendered"
        response = self.client.get('/simple/sitemap.xml')
        expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>%s/location/</loc><lastmod>%s</lastmod><changefreq>never</changefreq><priority>0.5</priority></url>
</urlset>
""" % (self.base_url, date.today())
        self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    @override_settings(
        TEMPLATE_DIRS=(os.path.join(os.path.dirname(upath(__file__)), 'templates'),)
    )
    def test_simple_custom_sitemap(self):
        "A simple sitemap can be rendered with a custom template"
        response = self.client.get('/simple/custom-sitemap.xml')
        expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<!-- This is a customised template -->
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>%s/location/</loc><lastmod>%s</lastmod><changefreq>never</changefreq><priority>0.5</priority></url>
</urlset>
""" % (self.base_url, date.today())
        self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    def test_sitemap_last_modified(self):
        "Tests that Last-Modified header is set correctly"
        response = self.client.get('/lastmod/sitemap.xml')
        self.assertEqual(response['Last-Modified'], 'Wed, 13 Mar 2013 10:00:00 GMT')

    def test_sitemap_last_modified_missing(self):
        "Tests that Last-Modified header is missing when sitemap has no lastmod"
        response = self.client.get('/generic/sitemap.xml')
        self.assertFalse(response.has_header('Last-Modified'))

    def test_sitemap_last_modified_mixed(self):
        "Tests that Last-Modified header is omitted when lastmod not on all items"
        response = self.client.get('/lastmod-mixed/sitemap.xml')
        self.assertFalse(response.has_header('Last-Modified'))

    @skipUnless(settings.USE_I18N, "Internationalization is not enabled")
    @override_settings(USE_L10N=True)
    def test_localized_priority(self):
        "The priority value should not be localized (Refs #14164)"
        activate('fr')
        self.assertEqual('0,3', localize(0.3))

        # Retrieve the sitemap. Check that priorities
        # haven't been rendered in localized format
        response = self.client.get('/simple/sitemap.xml')
        self.assertContains(response, '<priority>0.5</priority>')
        self.assertContains(response, '<lastmod>%s</lastmod>' % date.today())
        deactivate()

    def test_requestsite_sitemap(self):
        # Make sure hitting the flatpages sitemap without the sites framework
        # installed doesn't raise an exception.
        with app_cache._without_app('django.contrib.sites'):
            response = self.client.get('/simple/sitemap.xml')
            expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>http://testserver/location/</loc><lastmod>%s</lastmod><changefreq>never</changefreq><priority>0.5</priority></url>
</urlset>
""" % date.today()
            self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    @skipUnless(app_cache.has_app('django.contrib.sites'),
                "django.contrib.sites app not installed.")
    def test_sitemap_get_urls_no_site_1(self):
        """
        Check we get ImproperlyConfigured if we don't pass a site object to
        Sitemap.get_urls and no Site objects exist
        """
        Site.objects.all().delete()
        self.assertRaises(ImproperlyConfigured, Sitemap().get_urls)

    def test_sitemap_get_urls_no_site_2(self):
        """
        Check we get ImproperlyConfigured when we don't pass a site object to
        Sitemap.get_urls if Site objects exists, but the sites framework is not
        actually installed.
        """
        with app_cache._without_app('django.contrib.sites'):
            self.assertRaises(ImproperlyConfigured, Sitemap().get_urls)

    def test_sitemap_item(self):
        """
        Check to make sure that the raw item is included with each
        Sitemap.get_url() url result.
        """
        test_sitemap = GenericSitemap({'queryset': TestModel.objects.all()})

        def is_testmodel(url):
            return isinstance(url['item'], TestModel)
        item_in_url_info = all(map(is_testmodel, test_sitemap.get_urls()))
        self.assertTrue(item_in_url_info)

    def test_cached_sitemap_index(self):
        """
        Check that a cached sitemap index can be rendered (#2713).
        """
        response = self.client.get('/cached/index.xml')
        expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap><loc>%s/cached/sitemap-simple.xml</loc></sitemap>
</sitemapindex>
""" % self.base_url
        self.assertXMLEqual(response.content.decode('utf-8'), expected_content)

    def test_x_robots_sitemap(self):
        response = self.client.get('/simple/index.xml')
        self.assertEqual(response['X-Robots-Tag'], 'noindex, noodp, noarchive')

        response = self.client.get('/simple/sitemap.xml')
        self.assertEqual(response['X-Robots-Tag'], 'noindex, noodp, noarchive')

    def test_empty_sitemap(self):
        response = self.client.get('/empty/sitemap.xml')
        self.assertEqual(response.status_code, 200)