from unittest.mock import Mock

from django.test import override_settings, TestCase

from compressor.css import CssCompressor
from compressor.js import JsCompressor
from compressor.signals import post_compress


@override_settings(
    COMPRESS_ENABLED=True, COMPRESS_PRECOMPILERS=(), COMPRESS_DEBUG_TOGGLE="nocompress"
)
class PostCompressSignalTestCase(TestCase):
    def setUp(self):
        self.css = """\
<link rel="stylesheet" href="/static/css/one.css" type="text/css">
<style type="text/css">p { border:5px solid green;}</style>
<link rel="stylesheet" href="/static/css/two.css" type="text/css">"""
        self.css_node = CssCompressor("css", self.css)

        self.js = """\
<script src="/static/js/one.js" type="text/javascript"></script>
<script type="text/javascript">obj.value = "value";</script>"""
        self.js_node = JsCompressor("js", self.js)

    def tearDown(self):
        post_compress.disconnect()

    def test_js_signal_sent(self):
        def listener(sender, **kwargs):
            pass

        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        self.js_node.output()
        args, kwargs = callback.call_args
        self.assertEqual(JsCompressor, kwargs["sender"])
        self.assertEqual("js", kwargs["type"])
        self.assertEqual("file", kwargs["mode"])
        context = kwargs["context"]
        assert "url" in context["compressed"]

    def test_css_signal_sent(self):
        def listener(sender, **kwargs):
            pass

        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        self.css_node.output()
        args, kwargs = callback.call_args
        self.assertEqual(CssCompressor, kwargs["sender"])
        self.assertEqual("css", kwargs["type"])
        self.assertEqual("file", kwargs["mode"])
        context = kwargs["context"]
        assert "url" in context["compressed"]

    def test_css_signal_multiple_media_attributes(self):
        css = """\
<link rel="stylesheet" href="/static/css/one.css" media="handheld" type="text/css" />
<style type="text/css" media="print">p { border:5px solid green;}</style>
<link rel="stylesheet" href="/static/css/two.css" type="text/css">"""
        css_node = CssCompressor("css", css)

        def listener(sender, **kwargs):
            pass

        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        css_node.output()
        self.assertEqual(3, callback.call_count)