/*
 * SonarQube
 * Copyright (C) 2009-2017 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.platform.db.migration.version.v60;

import java.sql.SQLException;
import java.util.Map;
import javax.annotation.Nullable;
import org.junit.Rule;
import org.junit.Test;
import org.sonar.api.resources.Qualifiers;
import org.sonar.api.resources.Scopes;
import org.sonar.db.CoreDbTester;

import static java.lang.String.valueOf;
import static org.assertj.core.api.Assertions.assertThat;

public class PopulateAnalysisUuidOnEventsTest {

  private static final String TABLE_EVENTS = "events";
  private static final String TABLE_SNAPSHOTS = "snapshots";

  @Rule
  public CoreDbTester db = CoreDbTester.createForSchema(PopulateAnalysisUuidOnEventsTest.class,
    "in_progress_events_with_snapshots.sql");

  private PopulateAnalysisUuidOnEvents underTest = new PopulateAnalysisUuidOnEvents(db.database());

  @Test
  public void migration_has_no_effect_on_empty_tables() throws SQLException {
    underTest.execute();

    assertThat(db.countRowsOfTable(TABLE_EVENTS)).isEqualTo(0);
  }

  @Test
  public void migration_populates_uuids_of_root_components_only() throws SQLException {
    insertSnapshot(1, "U1", Scopes.PROJECT, Qualifiers.PROJECT);
    insertSnapshot(2, "U2", Scopes.PROJECT, Qualifiers.MODULE);
    insertSnapshot(3, "U3", Scopes.DIRECTORY, Qualifiers.DIRECTORY);
    insertSnapshot(4, "U4", Scopes.FILE, Qualifiers.FILE);
    insertSnapshot(5, "U5", Scopes.FILE, Qualifiers.UNIT_TEST_FILE);
    insertSnapshot(6, "U6", Scopes.PROJECT, Qualifiers.VIEW);
    insertSnapshot(7, "U7", Scopes.PROJECT, Qualifiers.SUBVIEW);
    insertSnapshot(8, "U8", Scopes.FILE, Qualifiers.PROJECT);
    insertSnapshot(9, "U9", Scopes.PROJECT, "DEV");
    insertSnapshot(10, "U10", Scopes.PROJECT, "DEV_PRJ");
    insertSnapshot(11, "U11", "FOO", "BAR");
    insertEvent(21, null);
    insertEvent(22, 1L);
    insertEvent(23, 2L);
    insertEvent(24, 3L);
    insertEvent(25, 4L);
    insertEvent(26, 5L);
    insertEvent(27, 6L);
    insertEvent(28, 7L);
    insertEvent(29, 8L);
    insertEvent(210, 9L);
    insertEvent(211, 10L);
    insertEvent(212, 11L);

    underTest.execute();

    verifyAnalysisUuid(21, null);
    verifyAnalysisUuid(22, "U1");
    verifyAnalysisUuid(23, null);
    verifyAnalysisUuid(24, null);
    verifyAnalysisUuid(25, null);
    verifyAnalysisUuid(26, null);
    verifyAnalysisUuid(27, "U6");
    verifyAnalysisUuid(28, null);
    verifyAnalysisUuid(29, null);
    verifyAnalysisUuid(210, "U9");
    verifyAnalysisUuid(212, null);
    verifyAnalysisUuid(211, null);
  }

  @Test
  public void migration_is_reentrant() throws SQLException {
    insertSnapshot(1, "U1", Scopes.PROJECT, Qualifiers.PROJECT);
    insertEvent(1, null);
    insertEvent(2, 1L);

    underTest.execute();
    verifyAnalysisUuid(1, null);
    verifyAnalysisUuid(2, "U1");

    underTest.execute();
    verifyAnalysisUuid(1, null);
    verifyAnalysisUuid(2, "U1");
  }

  private void verifyAnalysisUuid(int eventId, @Nullable String expectedAnalysisUuid) {
    Map<String, Object> rows = db.selectFirst("select analysis_uuid as \"analysisUuid\" from events where id=" + eventId);
    assertThat(rows.get("analysisUuid")).isEqualTo(expectedAnalysisUuid);
  }

  private String insertSnapshot(long id, String uuid, String scope, String qualifier) {
    db.executeInsert(
      TABLE_SNAPSHOTS,
      "ID", valueOf(id),
      "UUID", uuid,
      "COMPONENT_UUID", valueOf(id + 10),
      "ROOT_COMPONENT_UUID", valueOf(id + 100),
      "SCOPE", scope,
      "QUALIFIER", qualifier);
    return uuid;
  }

  private void insertEvent(long id, @Nullable Long snapshotId) {
    db.executeInsert(
      TABLE_EVENTS,
      "ID", valueOf(id),
      "NAME", "name_" + id,
      "SNAPSHOT_ID", snapshotId == null ? null : valueOf(snapshotId),
      "EVENT_DATE", valueOf(1 + 100),
      "CREATED_AT", valueOf(1 + 300));
  }

}