from urllib.parse import urljoin

from django.conf import settings
from django.template import TemplateSyntaxError
from django.templatetags.static import StaticNode
from django.test import SimpleTestCase, override_settings

from ..utils import setup


@override_settings(INSTALLED_APPS=[], MEDIA_URL='media/', STATIC_URL='static/')
class StaticTagTests(SimpleTestCase):
    libraries = {'static': 'django.templatetags.static'}

    @setup({'static-prefixtag01': '{% load static %}{% get_static_prefix %}'})
    def test_static_prefixtag01(self):
        output = self.engine.render_to_string('static-prefixtag01')
        self.assertEqual(output, settings.STATIC_URL)

    @setup({'static-prefixtag02': '{% load static %}'
                                  '{% get_static_prefix as static_prefix %}{{ static_prefix }}'})
    def test_static_prefixtag02(self):
        output = self.engine.render_to_string('static-prefixtag02')
        self.assertEqual(output, settings.STATIC_URL)

    @setup({'static-prefixtag03': '{% load static %}{% get_media_prefix %}'})
    def test_static_prefixtag03(self):
        output = self.engine.render_to_string('static-prefixtag03')
        self.assertEqual(output, settings.MEDIA_URL)

    @setup({'static-prefixtag04': '{% load static %}'
                                  '{% get_media_prefix as media_prefix %}{{ media_prefix }}'})
    def test_static_prefixtag04(self):
        output = self.engine.render_to_string('static-prefixtag04')
        self.assertEqual(output, settings.MEDIA_URL)

    @setup({'t': '{% load static %}{% get_media_prefix ad media_prefix %}{{ media_prefix }}'})
    def test_static_prefixtag_without_as(self):
        msg = "First argument in 'get_media_prefix' must be 'as'"
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('t')

    @setup({'static-statictag01': '{% load static %}{% static "admin/base.css" %}'})
    def test_static_statictag01(self):
        output = self.engine.render_to_string('static-statictag01')
        self.assertEqual(output, urljoin(settings.STATIC_URL, 'admin/base.css'))

    @setup({'static-statictag02': '{% load static %}{% static base_css %}'})
    def test_static_statictag02(self):
        output = self.engine.render_to_string('static-statictag02', {'base_css': 'admin/base.css'})
        self.assertEqual(output, urljoin(settings.STATIC_URL, 'admin/base.css'))

    @setup({'static-statictag03': '{% load static %}{% static "admin/base.css" as foo %}{{ foo }}'})
    def test_static_statictag03(self):
        output = self.engine.render_to_string('static-statictag03')
        self.assertEqual(output, urljoin(settings.STATIC_URL, 'admin/base.css'))

    @setup({'static-statictag04': '{% load static %}{% static base_css as foo %}{{ foo }}'})
    def test_static_statictag04(self):
        output = self.engine.render_to_string('static-statictag04', {'base_css': 'admin/base.css'})
        self.assertEqual(output, urljoin(settings.STATIC_URL, 'admin/base.css'))

    @setup({'static-statictag05': '{% load static %}{% static "special?chars&quoted.html" %}'})
    def test_static_quotes_urls(self):
        output = self.engine.render_to_string('static-statictag05')
        self.assertEqual(output, urljoin(settings.STATIC_URL, '/static/special%3Fchars%26quoted.html'))

    @setup({'t': '{% load static %}{% static %}'})
    def test_static_statictag_without_path(self):
        msg = "'static' takes at least one argument (path to file)"
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('t')


class StaticNodeTests(SimpleTestCase):
    def test_repr(self):
        static_node = StaticNode(varname='named-var', path='named-path')
        self.assertEqual(
            repr(static_node),
            "StaticNode(varname='named-var', path='named-path')",
        )
        static_node = StaticNode(path='named-path')
        self.assertEqual(
            repr(static_node),
            "StaticNode(varname=None, path='named-path')",
        )