import logging
import os.path
import shutil
import unittest

import lesana


class testCollectionLoading(unittest.TestCase):
    def tearDown(self):
        shutil.rmtree(os.path.join(self.collection.basedir, '.lesana'))

    def test_empty(self):
        self.collection = lesana.Collection('tests/data/empty')
        self.assertEqual(self.collection.settings, {})

        self.collection.update_cache()
        self.assertIsNotNone(self.collection.cache)
        self.assertIsNotNone(self.collection.stemmer)

    def test_simple(self):
        self.collection = lesana.Collection('tests/data/simple')
        self.assertIsNotNone(self.collection.settings)
        self.assertEqual(self.collection.settings['name'], "Simple lesana collection")
        self.assertEqual(len(self.collection.settings['fields']), 3)

        self.collection.update_cache()
        self.assertIsNotNone(self.collection.cache)
        self.assertIsNotNone(self.collection.stemmer)

    def test_wrong_language(self):
        # This loads a collection with an invalid value in lang
        with self.assertLogs(level=logging.WARNING) as cm:
            self.collection = lesana.Collection('tests/data/wrong')
        self.assertEqual(len(cm.output), 1)
        self.assertIn("Invalid language", cm.output[0])
        # The collection will default to english, but should still work.
        self.collection.update_cache()
        self.assertIsNotNone(self.collection.settings)
        self.assertIsNotNone(self.collection.cache)
        self.assertIsNotNone(self.collection.stemmer)

    def test_unsafe(self):
        self.collection = lesana.Collection('tests/data/simple')
        self.collection.safe = False
        self.collection.update_cache()