/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.permission.ws.template;

import java.util.List;
import javax.annotation.Nullable;
import org.junit.Before;
import org.junit.Test;
import org.sonar.api.resources.Qualifiers;
import org.sonar.api.resources.ResourceTypes;
import org.sonar.api.server.ws.Change;
import org.sonar.api.server.ws.WebService.Action;
import org.sonar.db.component.ResourceTypesRule;
import org.sonar.db.permission.PermissionQuery;
import org.sonar.db.permission.template.PermissionTemplateDto;
import org.sonar.db.user.GroupDto;
import org.sonar.server.exceptions.BadRequestException;
import org.sonar.server.exceptions.ForbiddenException;
import org.sonar.server.exceptions.NotFoundException;
import org.sonar.server.exceptions.UnauthorizedException;
import org.sonar.server.permission.PermissionService;
import org.sonar.server.permission.PermissionServiceImpl;
import org.sonar.server.permission.ws.BasePermissionWsIT;
import org.sonar.server.permission.ws.WsParameters;
import org.sonar.server.ws.TestRequest;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.assertj.core.api.Assertions.tuple;
import static org.sonar.api.security.DefaultGroups.ANYONE;
import static org.sonar.api.web.UserRole.CODEVIEWER;
import static org.sonar.db.permission.GlobalPermission.PROVISION_PROJECTS;
import static org.sonar.db.permission.GlobalPermission.SCAN;
import static org.sonarqube.ws.client.permission.PermissionsWsParameters.PARAM_GROUP_NAME;
import static org.sonarqube.ws.client.permission.PermissionsWsParameters.PARAM_PERMISSION;
import static org.sonarqube.ws.client.permission.PermissionsWsParameters.PARAM_TEMPLATE_ID;
import static org.sonarqube.ws.client.permission.PermissionsWsParameters.PARAM_TEMPLATE_NAME;

public class RemoveGroupFromTemplateActionIT extends BasePermissionWsIT<RemoveGroupFromTemplateAction> {

  private static final String PERMISSION = CODEVIEWER;

  private GroupDto group;
  private PermissionTemplateDto template;
  private ResourceTypes resourceTypes = new ResourceTypesRule().setRootQualifiers(Qualifiers.PROJECT);
  private PermissionService permissionService = new PermissionServiceImpl(resourceTypes);
  private WsParameters wsParameters = new WsParameters(permissionService);

  @Override
  protected RemoveGroupFromTemplateAction buildWsAction() {
    return new RemoveGroupFromTemplateAction(db.getDbClient(), newPermissionWsSupport(), userSession, wsParameters);
  }

  @Before
  public void setUp() {
    loginAsAdmin();

    group = db.users().insertGroup("group-name");
    template = db.permissionTemplates().insertTemplate();
    addGroupToTemplate(template, group.getUuid(), PERMISSION, group.getName());
  }

  @Test
  public void verify_definition() {
    Action wsDef = wsTester.getDef();

    assertThat(wsDef.isInternal()).isFalse();
    assertThat(wsDef.since()).isEqualTo("5.2");
    assertThat(wsDef.isPost()).isTrue();
    assertThat(wsDef.changelog()).extracting(Change::getVersion, Change::getDescription).containsOnly(
      tuple("10.0", "Parameter 'groupId' is removed. Use 'groupName' instead."),
      tuple("8.4", "Parameter 'groupId' is deprecated. Format changes from integer to string. Use 'groupName' instead."));
  }

  @Test
  public void remove_group_from_template() {
    newRequest(group.getName(), template.getUuid(), PERMISSION);

    assertThat(getGroupNamesInTemplateAndPermission(template, PERMISSION)).isEmpty();
  }

  @Test
  public void remove_group_from_template_by_name_case_insensitive() {
    newRequest()
      .setParam(PARAM_GROUP_NAME, group.getName())
      .setParam(PARAM_PERMISSION, PERMISSION)
      .setParam(PARAM_TEMPLATE_NAME, template.getName().toUpperCase())
      .execute();

    assertThat(getGroupNamesInTemplateAndPermission(template, PERMISSION)).isEmpty();
  }

  @Test
  public void remove_group_twice_without_error() {
    newRequest(group.getName(), template.getUuid(), PERMISSION);
    newRequest(group.getName(), template.getUuid(), PERMISSION);

    assertThat(getGroupNamesInTemplateAndPermission(template, PERMISSION)).isEmpty();
  }

  @Test
  public void remove_anyone_group_from_template() {
    addGroupToTemplate(template, null, PERMISSION, null);

    newRequest(ANYONE, template.getUuid(), PERMISSION);

    assertThat(getGroupNamesInTemplateAndPermission(template, PERMISSION)).containsExactly(group.getName());
  }

  @Test
  public void fail_if_not_a_project_permission() {
    assertThatThrownBy(() -> newRequest(group.getName(), template.getUuid(), PROVISION_PROJECTS.getKey()))
      .isInstanceOf(IllegalArgumentException.class);
  }

  @Test
  public void fail_if_insufficient_privileges() {
    userSession.logIn().addPermission(SCAN);

    assertThatThrownBy(() -> newRequest(group.getName(), template.getUuid(), PERMISSION))
      .isInstanceOf(ForbiddenException.class);
  }

  @Test
  public void fail_if_not_logged_in() {
    assertThatThrownBy(() ->  {
      userSession.anonymous();
      newRequest(group.getName(), template.getUuid(), PERMISSION);
    })
      .isInstanceOf(UnauthorizedException.class);
  }

  @Test
  public void fail_if_group_params_missing() {
    assertThatThrownBy(() ->  {
      newRequest(null, template.getUuid(), PERMISSION);
    })
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("The 'groupName' parameter is missing");
  }

  @Test
  public void fail_if_permission_missing() {
    assertThatThrownBy(() ->  {
      newRequest(group.getName(), template.getUuid(), null);
    })
      .isInstanceOf(IllegalArgumentException.class);
  }

  @Test
  public void fail_if_template_missing() {
    assertThatThrownBy(() ->  {
      newRequest(group.getName(), null, PERMISSION);
    })
      .isInstanceOf(BadRequestException.class);
  }

  @Test
  public void fail_if_group_does_not_exist() {
    assertThatThrownBy(() ->  {
      newRequest("unknown-group-name", template.getUuid(), PERMISSION);
    })
      .isInstanceOf(NotFoundException.class)
      .hasMessage("No group with name 'unknown-group-name'");
  }

  @Test
  public void fail_if_template_key_does_not_exist() {
    assertThatThrownBy(() ->  {
      newRequest(group.getName(), "unknown-key", PERMISSION);
    })
      .isInstanceOf(NotFoundException.class)
      .hasMessage("Permission template with id 'unknown-key' is not found");
  }

  private void newRequest(@Nullable String groupName, @Nullable String templateKey, @Nullable String permission) {
    TestRequest request = newRequest();
    if (groupName != null) {
      request.setParam(PARAM_GROUP_NAME, groupName);
    }
    if (templateKey != null) {
      request.setParam(PARAM_TEMPLATE_ID, templateKey);
    }
    if (permission != null) {
      request.setParam(PARAM_PERMISSION, permission);
    }

    request.execute();
  }

  private void addGroupToTemplate(PermissionTemplateDto template, @Nullable String groupUuid, String permission, String groupName) {
    db.getDbClient().permissionTemplateDao().insertGroupPermission(db.getSession(), template.getUuid(), groupUuid,
      permission, template.getName(), groupName);
    db.commit();
  }

  private List<String> getGroupNamesInTemplateAndPermission(PermissionTemplateDto template, String permission) {
    PermissionQuery permissionQuery = PermissionQuery.builder().setPermission(permission).build();
    return db.getDbClient().permissionTemplateDao()
      .selectGroupNamesByQueryAndTemplate(db.getSession(), permissionQuery, template.getUuid());
  }
}
