from __future__ import unicode_literals

from django.urls import reverse

from mayan.apps.common.http import URL
from mayan.apps.documents.models import Document
from mayan.apps.documents.permissions import permission_document_create
from mayan.apps.documents.tests.base import GenericDocumentViewTestCase
from mayan.apps.documents.tests.literals import TEST_SMALL_DOCUMENT_PATH
from mayan.apps.sources.models import WebFormSource
from mayan.apps.sources.tests.literals import (
    TEST_SOURCE_LABEL, TEST_SOURCE_UNCOMPRESS_N,
)

from .literals import (
    TEST_METADATA_VALUE_UNICODE, TEST_METADATA_VALUE_WITH_AMPERSAND
)
from .mixins import MetadataTypeTestMixin


class DocumentUploadMetadataTestCase(MetadataTypeTestMixin, GenericDocumentViewTestCase):
    auto_upload_document = False

    def setUp(self):
        super(DocumentUploadMetadataTestCase, self).setUp()
        self.source = WebFormSource.objects.create(
            enabled=True, label=TEST_SOURCE_LABEL,
            uncompress=TEST_SOURCE_UNCOMPRESS_N
        )
        self._create_test_metadata_type()
        self.test_document_type.metadata.create(
            metadata_type=self.test_metadata_type, required=True
        )

    def test_upload_interactive_with_unicode_metadata(self):
        url = URL(
            path=reverse(viewname='sources:upload_interactive')
        )
        url.args['metadata0_id'] = self.test_metadata_type.pk
        url.args['metadata0_value'] = TEST_METADATA_VALUE_UNICODE

        self.grant_access(
            obj=self.test_document_type, permission=permission_document_create
        )

        # Upload the test document
        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_object:
            response = self.post(
                path=url.to_string(), data={
                    'document-language': 'eng', 'source-file': file_object,
                    'document_type_id': self.test_document_type.pk,
                }
            )
        self.assertEqual(response.status_code, 302)

        self.assertEqual(Document.objects.count(), 1)
        self.assertEqual(
            Document.objects.first().metadata.first().value,
            TEST_METADATA_VALUE_UNICODE
        )

    def test_upload_interactive_with_ampersand_metadata(self):
        url = URL(
            path=reverse(viewname='sources:upload_interactive')
        )
        url.args['metadata0_id'] = self.test_metadata_type.pk
        url.args['metadata0_value'] = TEST_METADATA_VALUE_WITH_AMPERSAND

        self.grant_access(
            permission=permission_document_create, obj=self.test_document_type
        )

        # Upload the test document
        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_object:
            response = self.post(
                path=url.to_string(), data={
                    'document-language': 'eng', 'source-file': file_object,
                    'document_type_id': self.test_document_type.pk,
                }
            )

        self.assertEqual(response.status_code, 302)

        self.assertEqual(Document.objects.count(), 1)
        self.assertEqual(
            Document.objects.first().metadata.first().value,
            TEST_METADATA_VALUE_WITH_AMPERSAND
        )

    def test_initial_step_conditions(self):
        self.grant_access(
            obj=self.test_document_type, permission=permission_document_create
        )

        response = self.post(
            viewname='sources:document_create_multiple', data={
                'document_type_selection-document_type': self.test_document_type.pk,
                'document_create_wizard-current_step': 0
            }
        )
        self.assertContains(response=response, text='Step 2', status_code=200)