# Copyright 2014
# The Cloudscaling Group, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import copy

from gceapi.tests.unit.api import common

EXPECTED_IMAGE_1 = {
    "kind": "compute#image",
    "selfLink": "http://localhost/compute/v1beta15/projects/"
                "fake_project/global/images/fake-image-1",
    "id": "5721131091780319465",
    "creationTimestamp": "2013-08-01T11:30:25Z",
    "name": "fake-image-1",
    "description": "christmas-tree",
    "sourceType": "RAW",
    "rawDisk": {
        "containerType": "TAR",
        "source": "http://fake_url/fake_resource",
    },
    "status": "READY",
    "archiveSizeBytes": "1"
}
EXPECTED_IMAGE_2 = {
    "kind": "compute#image",
    "selfLink": "http://localhost/compute/v1beta15/projects/"
                "fake_project/global/images/fake-image-2",
    "id": "5721131091780319468",
    "creationTimestamp": "2013-08-01T11:30:25Z",
    "name": "fake-image-2",
    "description": "",
    "sourceType": "RAW",
    "rawDisk": {
        "containerType": "TAR",
        "source": "",
    },
    "status": "READY",
    "archiveSizeBytes": "2"
}
NEW_IMAGE = {
    "kind": "compute#image",
    "selfLink": "http://localhost/compute/v1beta15/projects/"
                "fake_project/global/images/new-image",
    "id": "7252430471608041491",
    "creationTimestamp": "2013-08-02T11:30:25Z",
    "name": "new-image",
    "description": "new-description",
    "sourceType": "RAW",
    "rawDisk": {
        "containerType": "TAR",
        "source": "http://example.com/image.tar",
    },
    "status": "READY",
    "archiveSizeBytes": "5",
}


class ImagesControllerTest(common.GCEControllerTest):
    """
    Test of the GCE API /images application controller w/Glance.
    """

    def setUp(self):
        """Run before each test."""
        super(ImagesControllerTest, self).setUp()

    def test_get_image_list_filtered(self):
        response = self.request_gce("/fake_project/global/images"
                                    "?filter=name+eq+fake-image-2")
        self.assertEqual(200, response.status_int)
        response_body = copy.deepcopy(response.json_body)
        self.assertIn("items", response_body)
        expected_common = {
            "kind": "compute#imageList",
            "selfLink": "http://localhost/compute/v1beta15/projects/"
                        "fake_project/global/images",
            "id": "projects/fake_project/global/images",
        }
        response_images = response_body.pop("items")
        self.assertDictEqual(expected_common, response_body)
        self.assertDictEqual(EXPECTED_IMAGE_2, response_images[0])
        self.assertIn(EXPECTED_IMAGE_2, response_images)

    def test_get_image_list(self):
        response = self.request_gce('/fake_project/global/images')
        self.assertEqual(200, response.status_int)
        response_body = copy.deepcopy(response.json_body)
        self.assertIn("items", response_body)
        expected_common = {
            "kind": "compute#imageList",
            "selfLink": "http://localhost/compute/v1beta15/projects/"
                        "fake_project/global/images",
            "id": "projects/fake_project/global/images",
        }
        response_images = response_body.pop("items")
        self.assertDictEqual(expected_common, response_body)
        self.assertIn(EXPECTED_IMAGE_1, response_images)
        self.assertIn(EXPECTED_IMAGE_2, response_images)

    def test_get_image(self):
        response = self.request_gce("/fake_project/global/images/fake-image-1")
        self.assertEqual(200, response.status_int)
        self.assertDictEqual(EXPECTED_IMAGE_1, response.json_body)

    def test_get_nonexistent_image(self):
        response = self.request_gce('/fake_project/global/images/fake-image')
        self.assertEqual(404, response.status_int)

    def test_create_image(self):
        request_body = {
            'name': 'new-image',
            'rawDisk': {
                'containerType': 'TAR',
                'source': 'http://example.com/image.tar',
            },
            'sourceType': 'RAW',
            'description': 'new-description'
        }
        response = self.request_gce('/fake_project/global/images',
                                    method="POST",
                                    body=request_body)
        expected = {
            "operationType": "insert",
            "targetId": "7252430471608041491",
            "targetLink": "http://localhost/compute/v1beta15/projects/"
                          "fake_project/global/images/new-image",
        }
        expected.update(common.COMMON_PENDING_OPERATION)
        self.assertEqual(200, response.status_int)
        self.assertDictEqual(expected, response.json_body)

        response = self.request_gce('/fake_project/global/images/new-image')
        self.assertEqual(200, response.status_int)
        self.assertDictEqual(NEW_IMAGE, response.json_body)

    def test_delete_image(self):
        response = self.request_gce(
                '/fake_project/global/images/image-to-delete', method='DELETE')
        expected = {
            "operationType": "delete",
            "targetId": "6451912522928418272",
            "targetLink": "http://localhost/compute/v1beta15/projects/"
                          "fake_project/global/images/image-to-delete",
        }
        expected.update(common.COMMON_PENDING_OPERATION)
        self.assertEqual(200, response.status_int)
        self.assertDictEqual(expected, response.json_body)

        response = self.request_gce(
                '/fake_project/global/images/image-to-delete')
        self.assertEqual(404, response.status_int)

    def test_delete_nonexistent_image(self):
        response = self.request_gce('/fake_project/global/images/fake-image',
                                    method='DELETE')
        self.assertEqual(404, response.status_int)