# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from context import nikola
import os
import unittest
import mock


class GetMetaTest(unittest.TestCase):
    def test_getting_metadata_from_content(self):
        file_metadata = [".. title: Nikola needs more tests!\n",
                         ".. slug: write-tests-now\n",
                         ".. date: 2012/09/15 19:52:05\n",
                         ".. tags:\n",
                         ".. link:\n",
                         ".. description:\n",
                         "Post content\n"]

        opener_mock = mock.mock_open(read_data=file_metadata)
        opener_mock.return_value.readlines.return_value = file_metadata

        with mock.patch('nikola.utils.codecs.open', opener_mock, create=True):
            (title, slug, date, tags, link,
             description) = nikola.utils.get_meta('file_with_metadata')

        self.assertEqual('Nikola needs more tests!', title)
        self.assertEqual('write-tests-now', slug)
        self.assertEqual('2012/09/15 19:52:05', date)
        self.assertEqual('', tags)
        self.assertEqual('', link)
        self.assertEqual('', description)

    def test_get_title_from_rest(self):
        file_metadata = [".. slug: write-tests-now\n",
                         ".. date: 2012/09/15 19:52:05\n",
                         ".. tags:\n",
                         ".. link:\n",
                         ".. description:\n",
                         "Post Title\n",
                         "----------\n"]

        opener_mock = mock.mock_open(read_data=file_metadata)
        opener_mock.return_value.readlines.return_value = file_metadata

        with mock.patch('nikola.utils.codecs.open', opener_mock, create=True):
            (title, slug, date, tags, link,
             description) = nikola.utils.get_meta('file_with_metadata')

        self.assertEqual('Post Title', title)
        self.assertEqual('write-tests-now', slug)
        self.assertEqual('2012/09/15 19:52:05', date)
        self.assertEqual('', tags)
        self.assertEqual('', link)
        self.assertEqual('', description)

    def test_get_title_from_fname(self):
        file_metadata = [".. slug: write-tests-now\n",
                         ".. date: 2012/09/15 19:52:05\n",
                         ".. tags:\n",
                         ".. link:\n",
                         ".. description:\n"]

        opener_mock = mock.mock_open(read_data=file_metadata)
        opener_mock.return_value.readlines.return_value = file_metadata

        with mock.patch('nikola.utils.codecs.open', opener_mock, create=True):
            (title, slug, date, tags, link,
             description) = nikola.utils.get_meta('file_with_metadata')

        self.assertEqual('file_with_metadata', title)
        self.assertEqual('write-tests-now', slug)
        self.assertEqual('2012/09/15 19:52:05', date)
        self.assertEqual('', tags)
        self.assertEqual('', link)
        self.assertEqual('', description)

    def test_use_filename_as_slug_fallback(self):
        file_metadata = [".. title: Nikola needs more tests!\n",
                         ".. date: 2012/09/15 19:52:05\n",
                         ".. tags:\n",
                         ".. link:\n",
                         ".. description:\n",
                         "Post content\n"]

        opener_mock = mock.mock_open(read_data=file_metadata)
        opener_mock.return_value.readlines.return_value = file_metadata

        with mock.patch('nikola.utils.codecs.open', opener_mock, create=True):
            (title, slug, date, tags, link,
             description) = nikola.utils.get_meta('Slugify this')

        self.assertEqual('Nikola needs more tests!', title)
        self.assertEqual('slugify-this', slug)
        self.assertEqual('2012/09/15 19:52:05', date)
        self.assertEqual('', tags)
        self.assertEqual('', link)
        self.assertEqual('', description)

    def test_extracting_metadata_from_filename(self):
        with mock.patch('nikola.utils.codecs.open', create=True):
            (
                title, slug, date, tags, link, description) = nikola.utils.get_meta('2013-01-23-the_slug-dubdubtitle.md',
                                                                                    '(?P<date>\d{4}-\d{2}-\d{2})-(?P<slug>.*)-(?P<title>.*)\.md')

        self.assertEqual('dubdubtitle', title)
        self.assertEqual('the_slug', slug)
        self.assertEqual('2013-01-23', date)
        self.assertEqual('', tags)
        self.assertEqual('', link)
        self.assertEqual('', description)

    def test_get_meta_slug_only_from_filename(self):
        with mock.patch('nikola.utils.codecs.open', create=True):
            (title, slug, date, tags, link,
             description) = nikola.utils.get_meta('some/path/the_slug.md')

        self.assertEqual('the_slug', slug)

if __name__ == '__main__':
    unittest.main()