''' testing book data connectors '''
from django.test import TestCase
import responses

from bookwyrm import models
from bookwyrm.connectors import abstract_connector
from bookwyrm.connectors.abstract_connector import Mapping, SearchResult


class AbstractConnector(TestCase):
    ''' generic code for connecting to outside data sources '''
    def setUp(self):
        ''' we need an example connector '''
        self.connector_info = models.Connector.objects.create(
            identifier='example.com',
            connector_file='openlibrary',
            base_url='https://example.com',
            books_url='https://example.com/books',
            covers_url='https://example.com/covers',
            search_url='https://example.com/search?q=',
            isbn_search_url='https://example.com/isbn',
        )

        class TestConnector(abstract_connector.AbstractMinimalConnector):
            ''' nothing added here '''
            def format_search_result(self, search_result):
                return search_result
            def get_or_create_book(self, remote_id):
                pass
            def parse_search_data(self, data):
                return data
            def format_isbn_search_result(self, search_result):
                return search_result
            def parse_isbn_search_data(self, data):
                return data
        self.test_connector = TestConnector('example.com')


    def test_abstract_minimal_connector_init(self):
        ''' barebones connector for search with defaults '''
        connector = self.test_connector
        self.assertEqual(connector.connector, self.connector_info)
        self.assertEqual(connector.base_url, 'https://example.com')
        self.assertEqual(connector.books_url, 'https://example.com/books')
        self.assertEqual(connector.covers_url, 'https://example.com/covers')
        self.assertEqual(connector.search_url, 'https://example.com/search?q=')
        self.assertEqual(connector.isbn_search_url, 'https://example.com/isbn')
        self.assertIsNone(connector.name)
        self.assertEqual(connector.identifier, 'example.com')
        self.assertIsNone(connector.max_query_count)
        self.assertFalse(connector.local)


    @responses.activate
    def test_search(self):
        ''' makes an http request to the outside service '''
        responses.add(
            responses.GET,
            'https://example.com/search?q=a%20book%20title',
            json=['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l'],
            status=200)
        results = self.test_connector.search('a book title')
        self.assertEqual(len(results), 10)
        self.assertEqual(results[0], 'a')
        self.assertEqual(results[1], 'b')
        self.assertEqual(results[2], 'c')


    def test_search_result(self):
        ''' a class that stores info about a search result '''
        result = SearchResult(
            title='Title',
            key='https://example.com/book/1',
            author='Author Name',
            year='1850',
            connector=self.test_connector,
        )
        # there's really not much to test here, it's just a dataclass
        self.assertEqual(result.confidence, 1)
        self.assertEqual(result.title, 'Title')


    def test_create_mapping(self):
        ''' maps remote fields for book data to bookwyrm activitypub fields '''
        mapping = Mapping('isbn')
        self.assertEqual(mapping.local_field, 'isbn')
        self.assertEqual(mapping.remote_field, 'isbn')
        self.assertEqual(mapping.formatter('bb'), 'bb')


    def test_create_mapping_with_remote(self):
        ''' the remote field is different than the local field '''
        mapping = Mapping('isbn', remote_field='isbn13')
        self.assertEqual(mapping.local_field, 'isbn')
        self.assertEqual(mapping.remote_field, 'isbn13')
        self.assertEqual(mapping.formatter('bb'), 'bb')


    def test_create_mapping_with_formatter(self):
        ''' a function is provided to modify the data '''
        formatter = lambda x: 'aa' + x
        mapping = Mapping('isbn', formatter=formatter)
        self.assertEqual(mapping.local_field, 'isbn')
        self.assertEqual(mapping.remote_field, 'isbn')
        self.assertEqual(mapping.formatter, formatter)
        self.assertEqual(mapping.formatter('bb'), 'aabb')