""" testing models """
from dateutil.parser import parse
from django.test import TestCase
from django.utils import timezone
from unittest.mock import patch

from bookwyrm import models, settings
from bookwyrm.models.book import isbn_10_to_13, isbn_13_to_10


class Book(TestCase):
    """not too much going on in the books model but here we are"""

    def setUp(self):
        """we'll need some books"""
        with patch("bookwyrm.preview_images.generate_edition_preview_image_task.delay"):
            self.work = models.Work.objects.create(
                title="Example Work", remote_id="https://example.com/book/1"
            )
            self.first_edition = models.Edition.objects.create(
                title="Example Edition",
                parent_work=self.work,
            )
            self.second_edition = models.Edition.objects.create(
                title="Another Example Edition",
                parent_work=self.work,
            )

    def test_remote_id(self):
        """fanciness with remote/origin ids"""
        remote_id = "https://%s/book/%d" % (settings.DOMAIN, self.work.id)
        self.assertEqual(self.work.get_remote_id(), remote_id)
        self.assertEqual(self.work.remote_id, remote_id)

    def test_create_book(self):
        """you shouldn't be able to create Books (only editions and works)"""
        self.assertRaises(ValueError, models.Book.objects.create, title="Invalid Book")

    def test_isbn_10_to_13(self):
        """checksums and so on"""
        isbn_10 = "178816167X"
        isbn_13 = isbn_10_to_13(isbn_10)
        self.assertEqual(isbn_13, "9781788161671")

        isbn_10 = "1-788-16167-X"
        isbn_13 = isbn_10_to_13(isbn_10)
        self.assertEqual(isbn_13, "9781788161671")

    def test_isbn_13_to_10(self):
        """checksums and so on"""
        isbn_13 = "9781788161671"
        isbn_10 = isbn_13_to_10(isbn_13)
        self.assertEqual(isbn_10, "178816167X")

        isbn_13 = "978-1788-16167-1"
        isbn_10 = isbn_13_to_10(isbn_13)
        self.assertEqual(isbn_10, "178816167X")

    def test_get_edition_info(self):
        """text slug about an edition"""
        with patch("bookwyrm.preview_images.generate_edition_preview_image_task.delay"):
            book = models.Edition.objects.create(title="Test Edition")
        self.assertEqual(book.edition_info, "")

        book.physical_format = "worm"
        book.save()
        self.assertEqual(book.edition_info, "worm")

        book.languages = ["English"]
        book.save()
        self.assertEqual(book.edition_info, "worm")

        book.languages = ["Glorbish", "English"]
        book.save()
        self.assertEqual(book.edition_info, "worm, Glorbish language")

        book.published_date = timezone.make_aware(parse("2020"))
        book.save()
        self.assertEqual(book.edition_info, "worm, Glorbish language, 2020")
        self.assertEqual(book.alt_text, "Test Edition (worm, Glorbish language, 2020)")

    def test_get_rank(self):
        """sets the data quality index for the book"""
        # basic rank
        self.assertEqual(self.first_edition.edition_rank, 0)

        self.first_edition.description = "hi"
        self.first_edition.save()
        self.assertEqual(self.first_edition.edition_rank, 1)