src/main/java/net/pterodactylus/rhynodge/triggers/NewEpisodeTrigger.java

   1 /*
   2  * Rhynodge - NewEpisodeTrigger.java - Copyright © 2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.rhynodge.triggers;
  19
  20 import static com.google.common.base.Preconditions.checkState;
  21
  22 import java.util.Collection;
  23 import java.util.Map;
  24 import java.util.Map.Entry;
  25
  26 import net.pterodactylus.rhynodge.Reaction;
  27 import net.pterodactylus.rhynodge.State;
  28 import net.pterodactylus.rhynodge.Trigger;
  29 import net.pterodactylus.rhynodge.output.DefaultOutput;
  30 import net.pterodactylus.rhynodge.output.Output;
  31 import net.pterodactylus.rhynodge.states.EpisodeState;
  32 import net.pterodactylus.rhynodge.states.EpisodeState.Episode;
  33 import net.pterodactylus.rhynodge.states.TorrentState.TorrentFile;
  34
  35 import org.apache.commons.lang3.StringEscapeUtils;
  36
  37 import com.google.common.base.Function;
  38 import com.google.common.collect.FluentIterable;
  39 import com.google.common.collect.ImmutableMap;
  40 import com.google.common.collect.Lists;
  41 import com.google.common.collect.Maps;
  42 import com.google.common.collect.Ordering;
  43 import com.google.common.collect.Sets;
  44
  45 /**
  46  * {@link Trigger} implementation that compares two {@link EpisodeState}s for
  47  * new and changed {@link Episode}s.
  48  *
  49  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  50  */
  51 public class NewEpisodeTrigger implements Trigger {
  52
  53         /** All episodes. */
  54         private final Collection<Episode> allEpisodes = Sets.newHashSet();
  55
  56         /** All new episodes. */
  57         private final Collection<Episode> newEpisodes = Sets.newHashSet();
  58
  59         /** All changed episodes. */
  60         private final Collection<Episode> changedEpisodes = Sets.newHashSet();
  61
  62         /** All new torrent files. */
  63         private final Collection<TorrentFile> newTorrentFiles = Sets.newHashSet();
  64
  65         //
  66         // TRIGGER METHODS
  67         //
  68
  69         /**
  70          * {@inheritDocs}
  71          */
  72         @Override
  73         public State mergeStates(State previousState, State currentState) {
  74                 checkState(currentState instanceof EpisodeState, "currentState is not a EpisodeState but a %s", currentState.getClass().getName());
  75                 checkState(previousState instanceof EpisodeState, "previousState is not a EpisodeState but a %s", currentState.getClass().getName());
  76                 newEpisodes.clear();
  77                 changedEpisodes.clear();
  78                 this.allEpisodes.clear();
  79                 newTorrentFiles.clear();
  80                 Map<Episode, Episode> allEpisodes = Maps.newHashMap(FluentIterable.from(((EpisodeState) previousState).episodes()).toMap(new Function<Episode, Episode>() {
  81
  82                         @Override
  83                         public Episode apply(Episode episode) {
  84                                 return episode;
  85                         }
  86                 }));
  87                 for (Episode episode : ((EpisodeState) currentState).episodes()) {
  88                         if (!allEpisodes.containsKey(episode)) {
  89                                 allEpisodes.put(episode, episode);
  90                                 newEpisodes.add(episode);
  91                         }
  92                         Episode existingEpisode = allEpisodes.get(episode);
  93                         for (TorrentFile torrentFile : Lists.newArrayList(episode.torrentFiles())) {
  94                                 int oldSize = existingEpisode.torrentFiles().size();
  95                                 existingEpisode.addTorrentFile(torrentFile);
  96                                 int newSize = existingEpisode.torrentFiles().size();
  97                                 if (oldSize != newSize) {
  98                                         newTorrentFiles.add(torrentFile);
  99                                 }
 100                                 if (!newEpisodes.contains(existingEpisode) && (oldSize != newSize)) {
 101                                         changedEpisodes.add(existingEpisode);
 102                                 }
 103                         }
 104                 }
 105                 this.allEpisodes.addAll(allEpisodes.values());
 106                 return new EpisodeState(this.allEpisodes);
 107         }
 108
 109         /**
 110          * {@inheritDoc}
 111          */
 112         @Override
 113         public boolean triggers() {
 114                 return !newEpisodes.isEmpty() || !changedEpisodes.isEmpty();
 115         }
 116
 117         /**
 118          * {@inheritDoc}
 119          */
 120         @Override
 121         public Output output(Reaction reaction) {
 122                 String summary;
 123                 if (!newEpisodes.isEmpty()) {
 124                         if (!changedEpisodes.isEmpty()) {
 125                                 summary = String.format("%d new and %d changed Torrent(s) for “%s!”", newEpisodes.size(), changedEpisodes.size(), reaction.name());
 126                         } else {
 127                                 summary = String.format("%d new Torrent(s) for “%s!”", newEpisodes.size(), reaction.name());
 128                         }
 129                 } else {
 130                         summary = String.format("%d changed Torrent(s) for “%s!”", changedEpisodes.size(), reaction.name());
 131                 }
 132                 DefaultOutput output = new DefaultOutput(summary);
 133                 output.addText("text/plain", generatePlainText(reaction));
 134                 output.addText("text/html", generateHtmlText(reaction));
 135                 return output;
 136         }
 137
 138         //
 139         // PRIVATE METHODS
 140         //
 141
 142         /**
 143          * Generates the plain text trigger output.
 144          *
 145          * @param reaction
 146          *            The reaction that was triggered
 147          * @return The plain text output
 148          */
 149         private String generatePlainText(Reaction reaction) {
 150                 StringBuilder stringBuilder = new StringBuilder();
 151                 if (!newEpisodes.isEmpty()) {
 152                         stringBuilder.append(reaction.name()).append(" - New Episodes\n\n");
 153                         for (Episode episode : newEpisodes) {
 154                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 155                                 for (TorrentFile torrentFile : episode) {
 156                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 157                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 158                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 159                                         }
 160                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 161                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 162                                         }
 163                                 }
 164                         }
 165                 }
 166                 if (!changedEpisodes.isEmpty()) {
 167                         stringBuilder.append(reaction.name()).append(" - Changed Episodes\n\n");
 168                         for (Episode episode : changedEpisodes) {
 169                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 170                                 for (TorrentFile torrentFile : episode) {
 171                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 172                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 173                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 174                                         }
 175                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 176                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 177                                         }
 178                                 }
 179                         }
 180                 }
 181                 /* list all known episodes. */
 182                 stringBuilder.append(reaction.name()).append(" - All Known Episodes\n\n");
 183                 ImmutableMap<Integer, Collection<Episode>> episodesBySeason = FluentIterable.from(allEpisodes).index(new Function<Episode, Integer>() {
 184
 185                         @Override
 186                         public Integer apply(Episode episode) {
 187                                 return episode.season();
 188                         }
 189                 }).asMap();
 190                 for (Entry<Integer, Collection<Episode>> seasonEntry : episodesBySeason.entrySet()) {
 191                         stringBuilder.append("  Season ").append(seasonEntry.getKey()).append("\n\n");
 192                         for (Episode episode : Ordering.natural().sortedCopy(seasonEntry.getValue())) {
 193                                 stringBuilder.append("    Episode ").append(episode.episode()).append("\n");
 194                                 for (TorrentFile torrentFile : episode) {
 195                                         stringBuilder.append("      Size: ").append(torrentFile.size());
 196                                         stringBuilder.append(" in ").append(torrentFile.fileCount()).append(" file(s): ");
 197                                         stringBuilder.append(torrentFile.magnetUri());
 198                                 }
 199                         }
 200                 }
 201
 202                 return stringBuilder.toString();
 203         }
 204
 205         /**
 206          * Generates the HTML trigger output.
 207          *
 208          * @param reaction
 209          *            The reaction that was triggered
 210          * @return The HTML output
 211          */
 212         private String generateHtmlText(Reaction reaction) {
 213                 StringBuilder htmlBuilder = new StringBuilder();
 214                 htmlBuilder.append("<html><body>\n");
 215                 /* show all known episodes. */
 216                 htmlBuilder.append("<table>\n<caption>All Known Episodes</caption>\n");
 217                 htmlBuilder.append("<thead>\n");
 218                 htmlBuilder.append("<tr>");
 219                 htmlBuilder.append("<th>Season</th>");
 220                 htmlBuilder.append("<th>Episode</th>");
 221                 htmlBuilder.append("<th>Filename</th>");
 222                 htmlBuilder.append("<th>Size</th>");
 223                 htmlBuilder.append("<th>File(s)</th>");
 224                 htmlBuilder.append("<th>Seeds</th>");
 225                 htmlBuilder.append("<th>Leechers</th>");
 226                 htmlBuilder.append("<th>Magnet</th>");
 227                 htmlBuilder.append("<th>Download</th>");
 228                 htmlBuilder.append("</tr>\n");
 229                 htmlBuilder.append("</thead>\n");
 230                 htmlBuilder.append("<tbody>\n");
 231                 Episode lastEpisode = null;
 232                 for (Entry<Integer, Collection<Episode>> seasonEntry : FluentIterable.from(Ordering.natural().reverse().sortedCopy(allEpisodes)).index(Episode.BY_SEASON).asMap().entrySet()) {
 233                         for (Episode episode : seasonEntry.getValue()) {
 234                                 for (TorrentFile torrentFile : episode) {
 235                                         if (newEpisodes.contains(episode)) {
 236                                                 htmlBuilder.append("<tr style=\"color: #008000; font-weight: bold;\">");
 237                                         } else if (newTorrentFiles.contains(torrentFile)) {
 238                                                 htmlBuilder.append("<tr style=\"color: #008000;\">");
 239                                         } else {
 240                                                 htmlBuilder.append("<tr>");
 241                                         }
 242                                         if ((lastEpisode == null) || !lastEpisode.equals(episode)) {
 243                                                 htmlBuilder.append("<td>").append(episode.season()).append("</td><td>").append(episode.episode()).append("</td>");
 244                                         } else {
 245                                                 htmlBuilder.append("<td colspan=\"2\"></td>");
 246                                         }
 247                                         htmlBuilder.append("<td>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</td>");
 248                                         htmlBuilder.append("<td>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</td>");
 249                                         htmlBuilder.append("<td>").append(torrentFile.fileCount()).append("</td>");
 250                                         htmlBuilder.append("<td>").append(torrentFile.seedCount()).append("</td>");
 251                                         htmlBuilder.append("<td>").append(torrentFile.leechCount()).append("</td>");
 252                                         htmlBuilder.append("<td><a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Link</a></td>");
 253                                         htmlBuilder.append("<td><a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Link</a></td>");
 254                                         htmlBuilder.append("</tr>\n");
 255                                         lastEpisode = episode;
 256                                 }
 257                         }
 258                 }
 259                 htmlBuilder.append("</tbody>\n");
 260                 htmlBuilder.append("</table>\n");
 261                 htmlBuilder.append("</body></html>\n");
 262                 return htmlBuilder.toString();
 263         }
 264
 265 }