// Copyright (C) 2017 The Android Open Source Project
//
// 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 com.google.gerrit.acceptance.rest.account;

import static com.google.common.truth.Truth.assertThat;
import static com.google.gerrit.server.account.ExternalId.SCHEME_USERNAME;

import com.google.gerrit.acceptance.AbstractDaemonTest;
import com.google.gerrit.acceptance.RestResponse;
import com.google.gerrit.acceptance.Sandboxed;
import com.google.gerrit.extensions.common.AccountExternalIdInfo;
import com.google.gerrit.server.account.ExternalId;
import com.google.gson.reflect.TypeToken;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.junit.Test;

@Sandboxed
public class ExternalIdIT extends AbstractDaemonTest {

  @Test
  public void getExternalIDs() throws Exception {
    Collection<ExternalId> expectedIds = accountCache.get(user.getId()).getExternalIds();

    List<AccountExternalIdInfo> expectedIdInfos = new ArrayList<>();
    for (ExternalId id : expectedIds) {
      AccountExternalIdInfo info = new AccountExternalIdInfo();
      info.identity = id.key().get();
      info.emailAddress = id.email();
      info.canDelete = !id.isScheme(SCHEME_USERNAME) ? true : null;
      info.trusted = true;
      expectedIdInfos.add(info);
    }

    RestResponse response = userRestSession.get("/accounts/self/external.ids");
    response.assertOK();

    List<AccountExternalIdInfo> results =
        newGson()
            .fromJson(
                response.getReader(), new TypeToken<List<AccountExternalIdInfo>>() {}.getType());

    Collections.sort(expectedIdInfos);
    Collections.sort(results);
    assertThat(results).containsExactlyElementsIn(expectedIdInfos);
  }

  @Test
  public void deleteExternalIDs() throws Exception {
    setApiUser(user);
    List<AccountExternalIdInfo> externalIds = gApi.accounts().self().getExternalIds();

    List<String> toDelete = new ArrayList<>();
    List<AccountExternalIdInfo> expectedIds = new ArrayList<>();
    for (AccountExternalIdInfo id : externalIds) {
      if (id.canDelete != null && id.canDelete) {
        toDelete.add(id.identity);
        continue;
      }
      expectedIds.add(id);
    }

    assertThat(toDelete).hasSize(1);

    RestResponse response = userRestSession.post("/accounts/self/external.ids:delete", toDelete);
    response.assertNoContent();
    List<AccountExternalIdInfo> results = gApi.accounts().self().getExternalIds();
    // The external ID in WebSession will not be set for tests, resulting that
    // "mailto:user@example.com" can be deleted while "username:user" can't.
    assertThat(results).hasSize(1);
    assertThat(results).containsExactlyElementsIn(expectedIds);
  }

  @Test
  public void deleteExternalIDs_Conflict() throws Exception {
    List<String> toDelete = new ArrayList<>();
    String externalIdStr = "username:" + user.username;
    toDelete.add(externalIdStr);
    RestResponse response = userRestSession.post("/accounts/self/external.ids:delete", toDelete);
    response.assertConflict();
    assertThat(response.getEntityContent())
        .isEqualTo(String.format("External id %s cannot be deleted", externalIdStr));
  }

  @Test
  public void deleteExternalIDs_UnprocessableEntity() throws Exception {
    List<String> toDelete = new ArrayList<>();
    String externalIdStr = "mailto:user@domain.com";
    toDelete.add(externalIdStr);
    RestResponse response = userRestSession.post("/accounts/self/external.ids:delete", toDelete);
    response.assertUnprocessableEntity();
    assertThat(response.getEntityContent())
        .isEqualTo(String.format("External id %s does not exist", externalIdStr));
  }
}