# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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 cgi
import cStringIO
import imghdr
import json
import os
import uuid

import mock
from oslo_utils import timeutils

from murano.api.v1 import catalog
from murano.db.catalog import api as db_catalog_api
from murano.db import models
from murano.packages import load_utils
import murano.tests.unit.api.base as test_base
import murano.tests.unit.utils as test_utils


class TestCatalogApi(test_base.ControllerTest, test_base.MuranoApiTestCase):
    def setUp(self):
        super(TestCatalogApi, self).setUp()
        self.controller = catalog.Controller()
        _, self.test_package = self._test_package()

    def _add_pkg(self, tenant_name, public=False, classes=None, **kwargs):
        package_to_upload = self.test_package.copy()
        package_to_upload['is_public'] = public
        package_to_upload['fully_qualified_name'] = str(uuid.uuid4())
        if classes:
            package_to_upload['class_definitions'] = classes
        else:
            package_to_upload['class_definitions'] = []
        package_to_upload.update(kwargs)
        return db_catalog_api.package_upload(
            package_to_upload, tenant_name)

    def test_packages_filtering_admin(self):
        self.is_admin = True
        self._set_policy_rules(
            {'get_package': ''}
        )
        for i in range(7):
            self.expect_policy_check('get_package')

        pkg = self._add_pkg('test_tenant', type='Library')
        self._add_pkg('test_tenant')
        self._add_pkg('test_tenant2', public=True, type='Library')
        self._add_pkg('test_tenant3')

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'False',
                                             'owned': 'False'}))
        self.assertEqual(len(result['packages']), 4)
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'False',
                                             'owned': 'True'}))
        self.assertEqual(len(result['packages']), 2)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True',
                                             'owned': 'False'}))
        self.assertEqual(len(result['packages']), 3)
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True',
                                             'owned': 'True'}))
        self.assertEqual(len(result['packages']), 2)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={
                'owned': 'True',
                'fqn': pkg.fully_qualified_name}))
        self.assertEqual(len(result['packages']), 1)
        self.assertEqual(result['packages'][0]['fully_qualified_name'],
                         pkg.fully_qualified_name)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={
                'owned': 'True',
                'type': 'Library'}))
        self.assertEqual(len(result['packages']), 1)
        self.assertEqual(result['packages'][0]['fully_qualified_name'],
                         pkg.fully_qualified_name)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={
                'type': 'Library'}))
        self.assertEqual(len(result['packages']), 2)

    def test_packages_filtering_non_admin(self):
        self.is_admin = False
        self._set_policy_rules(
            {'get_package': ''}
        )
        for i in range(7):
            self.expect_policy_check('get_package')

        pkg = self._add_pkg('test_tenant', type='Library')
        self._add_pkg('test_tenant')
        self._add_pkg('test_tenant2', public=True, type='Library')
        self._add_pkg('test_tenant3')

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'False',
                                             'owned': 'False'}))
        self.assertEqual(len(result['packages']), 2)
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'False',
                                             'owned': 'True'}))
        self.assertEqual(len(result['packages']), 2)
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True',
                                             'owned': 'False'}))
        self.assertEqual(len(result['packages']), 3)
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True',
                                             'owned': 'True'}))
        self.assertEqual(len(result['packages']), 2)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={
                'owned': 'True',
                'fqn': pkg.fully_qualified_name}))
        self.assertEqual(len(result['packages']), 1)
        self.assertEqual(result['packages'][0]['fully_qualified_name'],
                         pkg.fully_qualified_name)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={
                'owned': 'True',
                'type': 'Library'}))
        self.assertEqual(len(result['packages']), 1)
        self.assertEqual(result['packages'][0]['fully_qualified_name'],
                         pkg.fully_qualified_name)

        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={
                'type': 'Library'}))
        self.assertEqual(len(result['packages']), 1)

    def test_packages(self):
        self._set_policy_rules(
            {'get_package': ''}
        )
        for i in range(9):
            self.expect_policy_check('get_package')

        result = self.controller.search(self._get('/v1/catalog/packages/'))
        self.assertEqual(len(result['packages']), 0)

        self._add_pkg('test_tenant')
        self._add_pkg('test_tenant')
        self._add_pkg('other_tenant')
        self._add_pkg('other_tenant')

        # non-admin should only see 2 pkgs he can edit.
        self.is_admin = False
        result = self.controller.search(self._get('/v1/catalog/packages/'))
        self.assertEqual(len(result['packages']), 2)
        # can only deploy his + public
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True'}))
        self.assertEqual(len(result['packages']), 2)

        # admin can edit anything
        self.is_admin = True
        result = self.controller.search(self._get('/v1/catalog/packages/'))
        self.assertEqual(len(result['packages']), 4)
        # admin can only deploy his + public
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True'}))
        self.assertEqual(len(result['packages']), 2)

        self._add_pkg('test_tenant', public=True)
        self._add_pkg('other_tenant', public=True)

        # non-admin can't edit other_tenants public pkgs
        self.is_admin = False
        result = self.controller.search(self._get('/v1/catalog/packages/'))
        self.assertEqual(len(result['packages']), 3)
        # can deploy mine + other public
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True'}))
        self.assertEqual(len(result['packages']), 4)

        # admin can edit anything
        self.is_admin = True
        result = self.controller.search(self._get('/v1/catalog/packages/'))
        self.assertEqual(len(result['packages']), 6)
        # can deploy mine + public
        result = self.controller.search(self._get(
            '/v1/catalog/packages/', params={'catalog': 'True'}))
        self.assertEqual(len(result['packages']), 4)

    def _test_package(self):
        package_dir = os.path.abspath(
            os.path.join(
                __file__,
                '../../../packages/test_packages/test.mpl.v1.app'
            )
        )
        pkg = load_utils.load_from_dir(
            package_dir
        )
        package = {
            'fully_qualified_name': pkg.full_name,
            'type': pkg.package_type,
            'author': pkg.author,
            'supplier': pkg.supplier,
            'name': pkg.display_name,
            'description': pkg.description,
            'is_public': True,
            'tags': pkg.tags,
            'logo': pkg.logo,
            'supplier_logo': pkg.supplier_logo,
            'ui_definition': pkg.raw_ui,
            'class_definitions': pkg.classes,
            'archive': pkg.blob,
            'categories': [],
        }
        return pkg, package

    def test_load_package_with_supplier_info(self):
        self._set_policy_rules(
            {'get_package': '@'}
        )
        package_from_dir, package = self._test_package()

        saved_package = db_catalog_api.package_upload(package, '')

        self.expect_policy_check('get_package',
                                 {'package_id': saved_package.id})

        req = self._get('/v1/catalog/packages/%s' % saved_package.id)
        result = self.controller.get(req, saved_package.id)

        self.assertEqual(package['supplier'], result['supplier'])

        req = self._get(
            '/v1/catalog/packages/%s/supplier_logo' % saved_package.id
        )
        result = self.controller.get_supplier_logo(req, saved_package.id)

        self.assertEqual(imghdr.what('', result), 'png')

    def test_add_public_unauthorized(self):
        self._set_policy_rules({
            'upload_package': '@',
            'publicize_package': 'is_admin:True',
            'delete_package': 'is_admin:True',
        })

        self.expect_policy_check('upload_package')
        self.expect_policy_check('delete_package', mock.ANY)
        self.expect_policy_check('upload_package')
        self.expect_policy_check('publicize_package')
        self.expect_policy_check('upload_package')
        self.expect_policy_check('publicize_package')

        file_obj_str = cStringIO.StringIO("This is some dummy data")
        file_obj = mock.MagicMock(cgi.FieldStorage)
        file_obj.file = file_obj_str
        package_from_dir, package_metadata = self._test_package()

        body = '''\

--BOUNDARY
Content-Disposition: form-data; name="__metadata__"

{0}
--BOUNDARY
Content-Disposition: form-data; name="ziparchive"; filename="file.zip"

This is a fake zip archive
--BOUNDARY--'''

        with mock.patch('murano.packages.load_utils.load_from_file') as lff:
            lff.return_value = package_from_dir

            # Uploading a non-public package
            req = self._post(
                '/catalog/packages',
                body.format(json.dumps({'is_public': False})),
                content_type='multipart/form-data; ; boundary=BOUNDARY',
            )
            res = req.get_response(self.api)
            self.assertEqual(200, res.status_code)

            self.is_admin = True
            app_id = json.loads(res.body)['id']
            req = self._delete('/catalog/packages/{0}'.format(app_id))
            res = req.get_response(self.api)

            self.is_admin = False
            # Uploading a public package fails
            req = self._post(
                '/catalog/packages',
                body.format(json.dumps({'is_public': True})),
                content_type='multipart/form-data; ; boundary=BOUNDARY',
            )
            res = req.get_response(self.api)
            self.assertEqual(403, res.status_code)

            # Uploading a public package passes for admin
            self.is_admin = True
            req = self._post(
                '/catalog/packages',
                body.format(json.dumps({'is_public': True})),
                content_type='multipart/form-data; ; boundary=BOUNDARY',
            )
            res = req.get_response(self.api)
            self.assertEqual(200, res.status_code)

    def test_add_category(self):
        """Check that category added successfully
        """

        self._set_policy_rules({'add_category': '@'})
        self.expect_policy_check('add_category')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        expected = {
            'name': 'new_category',
            'created': timeutils.isotime(fake_now)[:-1],
            'updated': timeutils.isotime(fake_now)[:-1],
            'package_count': 0,
        }

        body = {'name': 'new_category'}
        req = self._post('/catalog/categories', json.dumps(body))
        result = req.get_response(self.api)
        processed_result = json.loads(result.body)
        self.assertIn('id', processed_result.keys())
        expected['id'] = processed_result['id']
        self.assertDictEqual(expected, processed_result)

    def test_delete_category(self):
        """Check that category deleted successfully
        """

        self._set_policy_rules({'delete_category': '@'})
        self.expect_policy_check('delete_category',
                                 {'category_id': '12345'})

        fake_now = timeutils.utcnow()
        expected = {'name': 'new_category',
                    'created': fake_now,
                    'updated': fake_now,
                    'id': '12345'}

        e = models.Category(**expected)
        test_utils.save_models(e)

        req = self._delete('/catalog/categories/12345')
        processed_result = req.get_response(self.api)
        self.assertEqual('', processed_result.body)
        self.assertEqual(200, processed_result.status_code)

    def test_add_category_failed_for_non_admin(self):
        """Check that non admin user couldn't add new category
        """

        self._set_policy_rules({'add_category': 'role:context_admin'})
        self.is_admin = False
        self.expect_policy_check('add_category')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        body = {'name': 'new_category'}
        req = self._post('/catalog/categories', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(403, result.status_code)
