// Copyright 2016 The Nomulus Authors. All Rights Reserved.
//
// 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.

package google.registry.tools.server;

import static com.google.appengine.api.datastore.DatastoreServiceFactory.getDatastoreService;
import static com.google.common.truth.Truth.assertThat;
import static com.googlecode.objectify.Key.create;
import static google.registry.model.ofy.ObjectifyService.ofy;

import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.KeyFactory;
import google.registry.model.registry.label.ReservedList;
import google.registry.request.HttpException.BadRequestException;
import google.registry.testing.AppEngineRule;
import google.registry.testing.ExceptionRule;
import google.registry.testing.FakeResponse;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.runners.MockitoJUnitRunner;

/** Unit tests for {@link DeleteEntityAction}. */
@RunWith(MockitoJUnitRunner.class)
public class DeleteEntityActionTest {

  @Rule
  public final AppEngineRule appEngine = AppEngineRule.builder().withDatastore().build();

  @Rule
  public final ExceptionRule thrown = new ExceptionRule();

  FakeResponse response = new FakeResponse();
  DeleteEntityAction action = new DeleteEntityAction();

  @Before
  public void init() throws Exception {
    action.response = response;
  }

  @Test
  public void test_deleteSingleRawEntitySuccessfully() throws Exception {
    Entity entity = new Entity("single", "raw");
    getDatastoreService().put(entity);
    action.rawKeys = KeyFactory.keyToString(entity.getKey());
    action.run();
    assertThat(response.getPayload())
        .isEqualTo("Deleted 1 raw entities and 0 registered entities");
  }

  @Test
  public void test_deleteSingleRegisteredEntitySuccessfully() throws Exception {
    ReservedList ofyEntity = new ReservedList.Builder().setName("foo").build();
    ofy().saveWithoutBackup().entity(ofyEntity).now();
    action.rawKeys = KeyFactory.keyToString(create(ofyEntity).getRaw());
    action.run();
    assertThat(response.getPayload())
        .isEqualTo("Deleted 0 raw entities and 1 registered entities");
  }

  @Test
  public void test_deleteOneRawEntityAndOneRegisteredEntitySuccessfully() throws Exception {
    Entity entity = new Entity("first", "raw");
    getDatastoreService().put(entity);
    String rawKey = KeyFactory.keyToString(entity.getKey());
    ReservedList ofyEntity = new ReservedList.Builder().setName("registered").build();
    ofy().saveWithoutBackup().entity(ofyEntity).now();
    String ofyKey = KeyFactory.keyToString(create(ofyEntity).getRaw());
    action.rawKeys = String.format("%s,%s", rawKey, ofyKey);
    action.run();
    assertThat(response.getPayload())
        .isEqualTo("Deleted 1 raw entities and 1 registered entities");
  }

  @Test
  public void test_deleteNonExistentEntityRepliesWithError() throws Exception {
    Entity entity = new Entity("not", "here");
    String rawKey = KeyFactory.keyToString(entity.getKey());
    action.rawKeys = rawKey;
    thrown.expect(BadRequestException.class, "Could not find entity with key " + rawKey);
    action.run();
  }

  @Test
  public void test_deleteOneEntityAndNonExistentEntityRepliesWithError() throws Exception {
    ReservedList ofyEntity = new ReservedList.Builder().setName("first_registered").build();
    ofy().saveWithoutBackup().entity(ofyEntity).now();
    String ofyKey = KeyFactory.keyToString(create(ofyEntity).getRaw());
    Entity entity = new Entity("non", "existent");
    String rawKey = KeyFactory.keyToString(entity.getKey());
    action.rawKeys = String.format("%s,%s", ofyKey, rawKey);
    thrown.expect(BadRequestException.class, "Could not find entity with key " + rawKey);
    action.run();
  }
}