content: /*
   * Solo - A small and beautiful blogging system written in Java.
   * Copyright (c) 2010-present, b3log.org
   *
   * Solo is licensed under Mulan PSL v2.
   * You can use this software according to the terms and conditions of the Mulan PSL v2.
   * You may obtain a copy of Mulan PSL v2 at:
   *         http://license.coscl.org.cn/MulanPSL2
   * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
   * See the Mulan PSL v2 for more details.
   */
  package org.b3log.solo.processor.console;
  
  import org.apache.commons.lang3.StringEscapeUtils;
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.b3log.latke.Keys;
  import org.b3log.latke.Latkes;
  import org.b3log.latke.http.RequestContext;
  import org.b3log.latke.http.renderer.JsonRenderer;
  import org.b3log.latke.ioc.Inject;
  import org.b3log.latke.ioc.Singleton;
  import org.b3log.latke.service.LangPropsService;
  import org.b3log.solo.model.Common;
  import org.b3log.solo.model.Link;
  import org.b3log.solo.service.LinkMgmtService;
  import org.b3log.solo.service.LinkQueryService;
  import org.b3log.solo.util.Solos;
  import org.b3log.solo.util.StatusCodes;
  import org.json.JSONObject;
  
  import java.util.List;
  
  /**
   * Link console request processing.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 2.0.0.1, Apr 21, 2021
   * @since 0.4.0
   */
  @Singleton
  public class LinkConsole {
  
      /**
       * Logger.
       */
      private static final Logger LOGGER = LogManager.getLogger(LinkConsole.class);
  
      /**
       * Link query service.
       */
      @Inject
      private LinkQueryService linkQueryService;
  
      /**
       * Link management service.
       */
      @Inject
      private LinkMgmtService linkMgmtService;
  
      /**
       * Language service.
       */
      @Inject
      private LangPropsService langPropsService;
  
      /**
       * Removes a link by the specified request.
       * <p>
       * Renders the response with a json object, for example,
       * <pre>
       * {
       *     "code": int,
       *     "msg": ""
       * }
       * </pre>
       * </p>
       *
       * @param context the specified request context
       */
      public void removeLink(final RequestContext context) {
          final JsonRenderer renderer = new JsonRenderer();
          context.setRenderer(renderer);
          final JSONObject jsonObject = new JSONObject();
          renderer.setJSONObject(jsonObject);
  
          try {
              final String linkId = context.pathVar("id");
              linkMgmtService.removeLink(linkId);
  
              jsonObject.put(Keys.CODE, StatusCodes.SUCC);
              jsonObject.put(Keys.MSG, langPropsService.get("removeSuccLabel"));
          } catch (final Exception e) {
              LOGGER.log(Level.ERROR, e.getMessage(), e);
              jsonObject.put(Keys.CODE, StatusCodes.ERR);
              jsonObject.put(Keys.MSG, langPropsService.get("removeFailLabel"));
          }
      }
  
      /**
       * Updates a link by the specified request.
       * <p>
       * Request json:
       * <pre>
       * {
       *     "link": {
       *         "oId": "",
       *         "linkTitle": "",
       *         "linkAddress": "",
       *         "linkDescription": "",
       *         "linkIcon": ""
       *     }
       * }
       * </pre>
       * </p>
       * <p>
       * Renders the response with a json object, for example,
       * <pre>
       * {
       *     "code": int,
       *     "msg": ""
       * }
       * </pre>
       * </p>
       *
       * @param context the specified request context
       */
      public void updateLink(final RequestContext context) {
          final JsonRenderer renderer = new JsonRenderer();
          context.setRenderer(renderer);
          final JSONObject ret = new JSONObject();
          try {
              final JSONObject requestJSON = context.requestJSON();
              linkMgmtService.updateLink(requestJSON);
  
              ret.put(Keys.CODE, StatusCodes.SUCC);
              ret.put(Keys.MSG, langPropsService.get("updateSuccLabel"));
              renderer.setJSONObject(ret);
          } catch (final Exception e) {
              LOGGER.log(Level.ERROR, e.getMessage(), e);
              final JSONObject jsonObject = new JSONObject().put(Keys.CODE, StatusCodes.ERR);
              renderer.setJSONObject(jsonObject);
              jsonObject.put(Keys.MSG, langPropsService.get("updateFailLabel"));
          }
      }
  
      /**
       * Changes a link order by the specified link id and direction.
       * <p>
       * Request json:
       * <pre>
       * {
       *     "oId": "",
       *     "direction": "" // "up"/"down"
       * }
       * </pre>
       * </p>
       * <p>
       * Renders the response with a json object, for example,
       * <pre>
       * {
       *     "code": int,
       *     "msg": ""
       * }
       * </pre>
       * </p>
       *
       * @param context the specified request context
       */
      public void changeOrder(final RequestContext context) {
          final JsonRenderer renderer = new JsonRenderer();
          context.setRenderer(renderer);
          final JSONObject ret = new JSONObject();
  
          try {
              final JSONObject requestJSON = context.requestJSON();
              final String linkId = requestJSON.getString(Keys.OBJECT_ID);
              final String direction = requestJSON.getString(Common.DIRECTION);
  
              linkMgmtService.changeOrder(linkId, direction);
  
              ret.put(Keys.CODE, StatusCodes.SUCC);
              ret.put(Keys.MSG, langPropsService.get("updateSuccLabel"));
              renderer.setJSONObject(ret);
          } catch (final Exception e) {
              LOGGER.log(Level.ERROR, e.getMessage(), e);
              final JSONObject jsonObject = new JSONObject().put(Keys.CODE, StatusCodes.ERR);
              renderer.setJSONObject(jsonObject);
              jsonObject.put(Keys.MSG, langPropsService.get("updateFailLabel"));
          }
      }
  
      /**
       * Adds a link with the specified request.
       * <p>
       * <pre>
       * {
       *     "link": {
       *         "linkTitle": "",
       *         "linkAddress": "",
       *         "linkDescription": ""
       *     }
       * }
       * </pre>
       * </p>
       * <p>
       * Renders the response with a json object, for example,
       * <pre>
       * {
       *     "code": int,
       *     "oId": "", // Generated link id
       *     "msg": ""
       * }
       * </pre>
       * </p>
       *
       * @param context the specified request context
       */
      public void addLink(final RequestContext context) {
          final JsonRenderer renderer = new JsonRenderer();
          context.setRenderer(renderer);
          final JSONObject ret = new JSONObject();
  
          try {
              final JSONObject requestJSON = context.requestJSON();
              final String linkId = linkMgmtService.addLink(requestJSON);
  
              ret.put(Keys.OBJECT_ID, linkId);
              ret.put(Keys.MSG, langPropsService.get("addSuccLabel"));
              ret.put(Keys.CODE, StatusCodes.SUCC);
              renderer.setJSONObject(ret);
          } catch (final Exception e) {
              LOGGER.log(Level.ERROR, e.getMessage(), e);
              final JSONObject jsonObject = new JSONObject().put(Keys.CODE, StatusCodes.ERR);
              renderer.setJSONObject(jsonObject);
              jsonObject.put(Keys.MSG, langPropsService.get("addFailLabel"));
          }
      }
  
      /**
       * Gets links by the specified request.
       * <p>
       * The request URI contains the pagination arguments. For example, the
       * request URI is /console/links/1/10/20, means the current page is 1, the
       * page size is 10, and the window size is 20.
       * </p>
       * <p>
       * Renders the response with a json object, for example,
       * <pre>
       * {
       *     "code": int,
       *     "pagination": {
       *         "paginationPageCount": 100,
       *         "paginationPageNums": [1, 2, 3, 4, 5]
       *     },
       *     "links": [{
       *         "oId": "",
       *         "linkTitle": "",
       *         "linkAddress": "",
       *         "linkDescription": ""
       *      }, ....]
       * }
       * </pre>
       * </p>
       *
       * @param context the specified request context
       */
      public void getLinks(final RequestContext context) {
          final JsonRenderer renderer = new JsonRenderer();
          context.setRenderer(renderer);
  
          try {
              final String requestURI = context.requestURI();
              final String path = requestURI.substring((Latkes.getContextPath() + "/console/links/").length());
              final JSONObject requestJSONObject = Solos.buildPaginationRequest(path);
              final JSONObject result = linkQueryService.getLinks(requestJSONObject);
              result.put(Keys.CODE, StatusCodes.SUCC);
              renderer.setJSONObject(result);
  
              final List<JSONObject> links = (List<JSONObject>) result.opt(Link.LINKS);
              for (final JSONObject link : links) {
                  String title = link.optString(Link.LINK_TITLE);
                  title = StringEscapeUtils.escapeXml(title);
                  link.put(Link.LINK_TITLE, title);
              }
          } catch (final Exception e) {
              LOGGER.log(Level.ERROR, e.getMessage(), e);
              final JSONObject jsonObject = new JSONObject().put(Keys.CODE, StatusCodes.ERR);
              renderer.setJSONObject(jsonObject);
              jsonObject.put(Keys.MSG, langPropsService.get("getFailLabel"));
          }
      }
  
      /**
       * Gets the file with the specified request.
       * <p>
       * Renders the response with a json object, for example,
       * <pre>
       * {
       *     "code": int,
       *     "link": {
       *         "oId": "",
       *         "linkTitle": "",
       *         "linkAddress": "",
       *         "linkDescription": ""
       *     }
       * }
       * </pre>
       * </p>
       *
       * @param context the specified request context
       */
      public void getLink(final RequestContext context) {
          final JsonRenderer renderer = new JsonRenderer();
          context.setRenderer(renderer);
  
          try {
              final String linkId = context.pathVar("id");
              final JSONObject result = linkQueryService.getLink(linkId);
              if (null == result) {
                  renderer.setJSONObject(new JSONObject().put(Keys.CODE, StatusCodes.ERR));
                  return;
              }
  
              renderer.setJSONObject(result);
              result.put(Keys.CODE, StatusCodes.SUCC);
          } catch (final Exception e) {
              LOGGER.log(Level.ERROR, e.getMessage(), e);
              final JSONObject jsonObject = new JSONObject().put(Keys.CODE, StatusCodes.ERR);
              renderer.setJSONObject(jsonObject);
              jsonObject.put(Keys.MSG, langPropsService.get("getFailLabel"));
          }
      }
  }
  