/*
 * SonarQube
 * Copyright (C) 2009-2019 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.qualitygate.ws;

import com.tngtech.java.junit.dataprovider.DataProvider;
import com.tngtech.java.junit.dataprovider.DataProviderRunner;
import com.tngtech.java.junit.dataprovider.UseDataProvider;
import java.util.Optional;
import javax.annotation.Nullable;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.sonar.api.server.ws.WebService;
import org.sonar.api.utils.System2;
import org.sonar.core.util.UuidFactoryFast;
import org.sonar.db.DbClient;
import org.sonar.db.DbSession;
import org.sonar.db.DbTester;
import org.sonar.db.organization.OrganizationDbTester;
import org.sonar.db.organization.OrganizationDto;
import org.sonar.db.qualitygate.QGateWithOrgDto;
import org.sonar.db.qualitygate.QualityGateDto;
import org.sonar.server.exceptions.ForbiddenException;
import org.sonar.server.exceptions.NotFoundException;
import org.sonar.server.organization.TestDefaultOrganizationProvider;
import org.sonar.server.qualitygate.QualityGateUpdater;
import org.sonar.server.tester.UserSessionRule;
import org.sonar.server.ws.TestRequest;
import org.sonar.server.ws.WsActionTester;
import org.sonarqube.ws.Qualitygates.CreateResponse;

import static org.assertj.core.api.Assertions.assertThat;
import static org.sonar.db.permission.OrganizationPermission.ADMINISTER_QUALITY_GATES;
import static org.sonar.server.qualitygate.ws.QualityGatesWsParameters.PARAM_NAME;
import static org.sonar.server.qualitygate.ws.QualityGatesWsParameters.PARAM_ORGANIZATION;

@RunWith(DataProviderRunner.class)
public class CreateActionTest {

  @Rule
  public ExpectedException expectedException = ExpectedException.none();

  @Rule
  public UserSessionRule userSession = UserSessionRule.standalone();

  @Rule
  public DbTester db = DbTester.create(System2.INSTANCE);

  private OrganizationDbTester organizationDbTester = new OrganizationDbTester(db);
  private TestDefaultOrganizationProvider defaultOrganizationProvider = TestDefaultOrganizationProvider.from(db);
  private DbClient dbClient = db.getDbClient();
  private DbSession dbSession = db.getSession();
  private CreateAction underTest = new CreateAction(dbClient, userSession, new QualityGateUpdater(dbClient, UuidFactoryFast.getInstance()),
    new QualityGatesWsSupport(dbClient, userSession, defaultOrganizationProvider));
  private WsActionTester ws = new WsActionTester(underTest);

  @Test
  public void default_organization_is_used_when_no_parameter() {
    logInAsQualityGateAdmin(db.getDefaultOrganization());

    String qgName = "Default";
    CreateResponse response = executeRequest(Optional.empty(), qgName);

    assertThat(response.getName()).isEqualTo(qgName);
    assertThat(response.getId()).isNotNull();
    dbSession.commit();

    QualityGateDto qualityGateDto = dbClient.qualityGateDao().selectByOrganizationAndName(dbSession, db.getDefaultOrganization(), qgName);
    assertThat(qualityGateDto).isNotNull();
  }

  @Test
  public void create_quality_gate_with_organization() {
    OrganizationDto organizationDto = organizationDbTester.insert();
    logInAsQualityGateAdmin(organizationDto);

    String qgName = "Default";
    CreateResponse response = executeRequest(Optional.of(organizationDto), qgName);

    assertThat(response.getName()).isEqualTo(qgName);
    assertThat(response.getId()).isNotNull();
    dbSession.commit();

    QualityGateDto qualityGateDto = dbClient.qualityGateDao().selectByOrganizationAndName(dbSession, organizationDto, qgName);
    assertThat(qualityGateDto).isNotNull();
  }

  @Test
  public void creating_a_qg_with_a_name_used_in_another_organization_should_work() {
    OrganizationDto anOrganization = db.organizations().insert();
    QGateWithOrgDto qualityGate = db.qualityGates().insertQualityGate(anOrganization);
    OrganizationDto anotherOrganization = db.organizations().insert();

    userSession.addPermission(ADMINISTER_QUALITY_GATES, anotherOrganization);

    CreateResponse response = ws.newRequest()
      .setParam(PARAM_NAME, qualityGate.getName())
      .setParam(PARAM_ORGANIZATION, anotherOrganization.getKey())
      .executeProtobuf(CreateResponse.class);

    assertThat(response.getName()).isEqualTo(qualityGate.getName());
    assertThat(response.getId()).isNotEqualTo(qualityGate.getId());
  }

  @Test
  public void test_ws_definition() {
    WebService.Action action = ws.getDef();
    assertThat(action).isNotNull();
    assertThat(action.isInternal()).isFalse();
    assertThat(action.isPost()).isTrue();
    assertThat(action.responseExampleAsString()).isNotEmpty();
    assertThat(action.params()).hasSize(2);
  }

  @Test
  public void throw_ForbiddenException_if_incorrect_organization() {
    logInAsQualityGateAdmin(db.getDefaultOrganization());
    OrganizationDto otherOrganization = organizationDbTester.insert();

    expectedException.expect(ForbiddenException.class);
    expectedException.expectMessage("Insufficient privileges");

    executeRequest(Optional.of(otherOrganization), "Default");
  }

  @Test
  public void throw_ForbiddenException_if_not_gate_administrator() {
    userSession.logIn();

    expectedException.expect(ForbiddenException.class);
    expectedException.expectMessage("Insufficient privileges");

    executeRequest(Optional.empty(), "Default");
  }

  @Test
  public void throw_ForbiddenException_if_not_gate_administrator_of_own_organization() {
    // as long as organizations don't support Quality gates, the global permission
    // is defined on the default organization
    OrganizationDto org = db.organizations().insert();
    userSession.logIn().addPermission(ADMINISTER_QUALITY_GATES, org);

    expectedException.expect(ForbiddenException.class);
    expectedException.expectMessage("Insufficient privileges");

    executeRequest(Optional.empty(), "Default");
  }

  @Test
  public void throw_ForbiddenException_if_unknown_organization() {
    OrganizationDto org = new OrganizationDto().setName("Unknown organization").setKey("unknown_key");

    userSession.logIn();

    expectedException.expect(NotFoundException.class);
    expectedException.expectMessage("No organization with key 'unknown_key'");

    executeRequest(Optional.of(org), "Default");
  }

  @Test
  public void throw_BadRequestException_if_name_is_already_used() {
    OrganizationDto org = db.organizations().insert();
    userSession.logIn().addPermission(ADMINISTER_QUALITY_GATES, org);

    executeRequest(Optional.of(org), "Default");

    expectedException.expect(IllegalArgumentException.class);
    expectedException.expectMessage("Name has already been taken");

    executeRequest(Optional.of(org), "Default");
  }

  @Test
  @UseDataProvider("nullOrEmpty")
  public void fail_when_name_parameter_is_empty(@Nullable String nameParameter) {
    OrganizationDto org = db.organizations().insert();
    userSession.addPermission(ADMINISTER_QUALITY_GATES, org);

    TestRequest request = ws.newRequest()
      .setParam(PARAM_ORGANIZATION, org.getKey());
    Optional.ofNullable(nameParameter).ifPresent(t -> request.setParam(PARAM_NAME, ""));

    expectedException.expect(IllegalArgumentException.class);
    expectedException.expectMessage("The 'name' parameter is missing");

    request.execute();
  }

  @DataProvider
  public static Object[][] nullOrEmpty() {
    return new Object[][] {
      {null},
      {""},
      {"  "}
    };
  }

  private CreateResponse executeRequest(Optional<OrganizationDto> organization, String qualitGateName) {
    if (organization.isPresent()) {
      return ws.newRequest()
        .setParam("name", qualitGateName)
        .setParam("organization", organization.get().getKey())
        .executeProtobuf(CreateResponse.class);
    } else {
      return ws.newRequest()
        .setParam("name", qualitGateName)
        .executeProtobuf(CreateResponse.class);
    }
  }

  private void logInAsQualityGateAdmin(OrganizationDto organizationDto) {
    userSession.logIn().addPermission(ADMINISTER_QUALITY_GATES, organizationDto);
  }
}