from __future__ import unicode_literals

from rest_framework import status

from mayan.apps.documents.tests import DocumentTestMixin
from mayan.apps.rest_api.tests import BaseAPITestCase

from ..permissions import (
    permission_ocr_document, permission_ocr_content_view,
)

from .literals import TEST_DOCUMENT_CONTENT


class OCRAPITestCase(DocumentTestMixin, BaseAPITestCase):
    def _request_document_ocr_submit_view(self):
        return self.post(
            viewname='rest_api:document-ocr-submit',
            kwargs={'document_id': self.document.pk}
        )

    def test_submit_document_no_permission(self):
        response = self._request_document_ocr_submit_view()
        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)

        self.assertFalse(hasattr(self.document.pages.first(), 'ocr_content'))

    #TODO: mock OCR here
    def test_submit_document_with_access(self):
        self.grant_access(
            permission=permission_ocr_document, obj=self.document
        )
        response = self._request_document_ocr_submit_view()
        self.assertEqual(response.status_code, status.HTTP_202_ACCEPTED)

        self.assertTrue(hasattr(self.document.pages.first(), 'ocr_content'))

    def _request_document_version_ocr_submit_view(self):
        return self.post(
            viewname='rest_api:document_version-ocr-submit',
            kwargs={
                'document_id': self.document.pk,
                'document_version_id': self.document.latest_version.pk
            }
        )

    def test_submit_document_version_no_permission(self):
        response = self._request_document_version_ocr_submit_view()
        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)

        self.assertFalse(hasattr(self.document.pages.first(), 'ocr_content'))

    def test_submit_document_version_with_access(self):
        self.grant_access(
            permission=permission_ocr_document, obj=self.document
        )
        response = self._request_document_version_ocr_submit_view()
        self.assertEqual(response.status_code, status.HTTP_202_ACCEPTED)

        self.assertTrue(hasattr(self.document.pages.first(), 'ocr_content'))

    def _request_document_content_view(self):
        return self.get(
            viewname='rest_api:document-ocr-content',
            kwargs={
                'document_id': self.test_document.pk,
            }
        )

    def test_get_document_content_no_permission(self):
        response = self._request_document_content_view()
        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)

    def test_get_document_content_with_access(self):
        self.document.submit_for_ocr()
        self.grant_access(
            permission=permission_ocr_content_view, obj=self.document
        )

        response = self._request_document_content_view()
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        self.assertTrue(
            TEST_DOCUMENT_CONTENT in response.data['text']
        )

    def _request_document_page_content_view(self):
        latest_version = self.test_document.latest_version

        return self.get(
            viewname='rest_api:document_page-ocr-content',
            kwargs={
                'document_id': self.test_document.pk,
                'document_version_id': latest_version.pk,
                'document_page_id': latest_version.pages.first().pk
            }
        )

    def test_get_document_version_page_content_no_permission(self):
        response = self._request_document_page_content_view()
        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)

    def test_get_document_version_page_content_with_access(self):
        self.document.submit_for_ocr()
        self.grant_access(
            permission=permission_ocr_content_view, obj=self.document
        )

        response = self._request_document_page_content_view()
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        self.assertTrue(
            TEST_DOCUMENT_CONTENT in response.data['text']
        )

    def _request_document_version_content_view(self):
        latest_version = self.test_document.latest_version

        return self.get(
            viewname='rest_api:document_version-ocr-content',
            kwargs={
                'document_id': self.test_document.pk,
                'document_version_id': latest_version.pk,
            }
        )

    def test_get_document_version_version_content_no_permission(self):
        response = self._request_document_version_content_view()
        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)

    def test_get_document_version_version_content_with_access(self):
        self.document.submit_for_ocr()
        self.grant_access(
            permission=permission_ocr_content_view, obj=self.document
        )

        response = self._request_document_version_content_view()
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        self.assertTrue(
            TEST_DOCUMENT_CONTENT in response.data['text']
        )