from django.contrib.auth import get_user_model
from django.test import TestCase

from misago.users.profilefields import ProfileFields


UserModel = get_user_model()


class ProfileFieldsLoadTests(TestCase):
    def test_no_groups(self):
        """profile fields util handles empty list"""
        profilefields = ProfileFields([])
        profilefields.load()

        self.assertFalse(profilefields.fields_dict)

    def test_empty_group(self):
        """profile fields util handles empty group"""
        profilefields = ProfileFields([
            {
                'name': "Test",
                'fields': [],
            },
        ])

        profilefields.load()

        self.assertFalse(profilefields.fields_dict)

    def test_field_defines_fieldname(self):
        """fields need to define fieldname"""
        profilefields = ProfileFields([
            {
                'name': "Test",
                'fields': [
                    'misago.users.tests.testfiles.profilefields.NofieldnameField',
                ],
            },
        ])

        with self.assertRaises(ValueError):
            profilefields.load()

        try:
            profilefields.load()
        except ValueError as e:
            error = str(e)

            self.assertIn('misago.users.tests.testfiles.profilefields.NofieldnameField', error)
            self.assertIn('profile field has to specify fieldname attribute', error)

    def test_detect_repeated_imports(self):
        """fields can't be specified multiple times"""
        profilefields = ProfileFields([
            {
                'name': "Test",
                'fields': [
                    'misago.users.profilefields.default.TwitterHandleField',
                ],
            },
            {
                'name': "Other test",
                'fields': [
                    'misago.users.profilefields.default.TwitterHandleField',
                ],
            },
        ])

        with self.assertRaises(ValueError):
            profilefields.load()

        try:
            profilefields.load()
        except ValueError as e:
            error = str(e)

            self.assertIn('misago.users.profilefields.default.TwitterHandleField', error)
            self.assertIn('profile field has been specified twice', error)

    def test_detect_repeated_fieldnames(self):
        """fields can't reuse other field's fieldnames"""
        profilefields = ProfileFields([
            {
                'name': "Test",
                'fields': [
                    'misago.users.tests.testfiles.profilefields.FieldnameField',
                ],
            },
            {
                'name': "Other test",
                'fields': [
                    'misago.users.tests.testfiles.profilefields.RepeatedFieldnameField',
                ],
            },
        ])

        with self.assertRaises(ValueError):
            profilefields.load()

        try:
            profilefields.load()
        except ValueError as e:
            error = str(e)

            self.assertIn('misago.users.tests.testfiles.profilefields.FieldnameField', error)
            self.assertIn('misago.users.tests.testfiles.profilefields.RepeatedFieldnameField', error)
            self.assertIn('field defines fieldname "hello" that is already in use by the', error)

    def test_field_correct_field(self):
        """util loads correct field"""
        field_path = 'misago.users.profilefields.default.RealNameField'

        profilefields = ProfileFields([
            {
                'name': "Test",
                'fields': [field_path],
            },
        ])

        profilefields.load()

        self.assertIn(field_path, profilefields.fields_dict)