/*
 * 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.platform.ws;

import org.sonar.api.server.ws.Change;
import org.sonar.api.server.ws.Request;
import org.sonar.api.server.ws.Response;
import org.sonar.api.server.ws.WebService;
import org.sonar.api.utils.text.JsonWriter;
import org.sonar.server.platform.SystemInfoWriter;
import org.sonar.server.user.UserSession;

/**
 * Implementation of the {@code info} action for the System WebService.
 */
public class InfoAction implements SystemWsAction {
  private final SystemInfoWriter systemInfoWriter;
  private final UserSession userSession;

  public InfoAction(UserSession userSession, SystemInfoWriter systemInfoWriter) {
    this.userSession = userSession;
    this.systemInfoWriter = systemInfoWriter;
  }

  @Override
  public void define(WebService.NewController controller) {
    WebService.NewAction action = controller.createAction("info")
      .setDescription("Get detailed information about system configuration.<br/>" +
        "Requires 'Administer' permissions.")
      .setSince("5.1")
      .setResponseExample(getClass().getResource("info-example.json"))
      .setHandler(this);

    action.setChangelog(
      new Change("5.5", "Becomes internal to easily update result"),
      new Change("8.3", "Becomes public"),
      new Change("9.7", "'Statistics' field has been removed from response"),
      new Change("9.8", "'Edition' field added to the response under the 'System' section")
    );
  }

  @Override
  public void handle(Request request, Response response) throws Exception {
    userSession.checkIsSystemAdministrator();
    JsonWriter json = response.newJsonWriter();
    json.beginObject();
    systemInfoWriter.write(json);
    json.endObject();
    json.close();
  }

}
