content: /*
   This file is part of Airsonic.
  
   Airsonic is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
  
   Airsonic 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 General Public License for more details.
  
   You should have received a copy of the GNU General Public License
   along with Airsonic.  If not, see <http://www.gnu.org/licenses/>.
  
   Copyright 2016 (C) Airsonic Authors
   Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
   */
  package org.airsonic.player.controller;
  
  import org.airsonic.player.domain.MediaFile;
  import org.airsonic.player.domain.PlayQueue;
  import org.airsonic.player.domain.Player;
  import org.airsonic.player.domain.Share;
  import org.airsonic.player.service.*;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.ServletRequestBindingException;
  import org.springframework.web.bind.ServletRequestUtils;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import java.util.*;
  
  /**
   * Controller for sharing music on Twitter, Facebook etc.
   *
   * @author Sindre Mehus
   */
  @Controller
  @RequestMapping("/createShare")
  public class ShareManagementController {
  
      @Autowired
      private MediaFileService mediaFileService;
      @Autowired
      private SettingsService settingsService;
      @Autowired
      private ShareService shareService;
      @Autowired
      private PlayerService playerService;
      @Autowired
      private PlaylistService playlistService;
      @Autowired
      private SecurityService securityService;
  
      @GetMapping
      public ModelAndView createShare(HttpServletRequest request, HttpServletResponse response) throws Exception {
  
          List<MediaFile> files = getMediaFiles(request);
          MediaFile dir = null;
          if (!files.isEmpty()) {
              dir = files.get(0);
              if (!dir.isAlbum()) {
                  dir = mediaFileService.getParentOf(dir);
              }
          }
  
          Map<String, Object> map = new HashMap<String, Object>();
          map.put("dir", dir);
          map.put("user", securityService.getCurrentUser(request));
  
          Share share = shareService.createShare(request, files);
          String description = getDescription(request);
          if (description != null) {
              share.setDescription(description);
              shareService.updateShare(share);
          }
  
          map.put("playUrl", shareService.getShareUrl(request, share));
  
          return new ModelAndView("createShare", "model", map);
      }
  
      private String getDescription(HttpServletRequest request) throws ServletRequestBindingException {
          Integer playlistId = ServletRequestUtils.getIntParameter(request, "playlist");
          return playlistId == null ? null : playlistService.getPlaylist(playlistId).getName();
      }
  
      private List<MediaFile> getMediaFiles(HttpServletRequest request) throws Exception {
          Integer id = ServletRequestUtils.getIntParameter(request, "id");
          Integer playerId = ServletRequestUtils.getIntParameter(request, "player");
          Integer playlistId = ServletRequestUtils.getIntParameter(request, "playlist");
  
          List<MediaFile> result = new ArrayList<>();
  
          if (id != null) {
              MediaFile album = mediaFileService.getMediaFile(id);
              int[] indexes = ServletRequestUtils.getIntParameters(request, "i");
              if (indexes.length == 0) {
                  return Arrays.asList(album);
              }
              List<MediaFile> children = mediaFileService.getChildrenOf(album, true, false, true);
              for (int index : indexes) {
                  result.add(children.get(index));
              }
          } else if (playerId != null) {
              Player player = playerService.getPlayerById(playerId);
              PlayQueue playQueue = player.getPlayQueue();
              result = playQueue.getFiles();
          } else if (playlistId != null) {
              result = playlistService.getFilesInPlaylist(playlistId);
          }
  
          return result;
      }
  
  }
  