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
  63         //
  64         // TRIGGER METHODS
  65         //
  66
  67         /**
  68          * {@inheritDocs}
  69          */
  70         @Override
  71         public State mergeStates(State previousState, State currentState) {
  72                 checkState(currentState instanceof EpisodeState, "currentState is not a EpisodeState but a %s", currentState.getClass().getName());
  73                 checkState(previousState instanceof EpisodeState, "previousState is not a EpisodeState but a %s", currentState.getClass().getName());
  74                 newEpisodes.clear();
  75                 changedEpisodes.clear();
  76                 this.allEpisodes.clear();
  77                 Map<Episode, Episode> allEpisodes = Maps.newHashMap(FluentIterable.from(((EpisodeState) previousState).episodes()).toMap(new Function<Episode, Episode>() {
  78
  79                         @Override
  80                         public Episode apply(Episode episode) {
  81                                 return episode;
  82                         }
  83                 }));
  84                 for (Episode episode : ((EpisodeState) currentState).episodes()) {
  85                         if (!allEpisodes.containsKey(episode)) {
  86                                 allEpisodes.put(episode, episode);
  87                                 newEpisodes.add(episode);
  88                         }
  89                         for (TorrentFile torrentFile : Lists.newArrayList(episode.torrentFiles())) {
  90                                 int oldSize = allEpisodes.get(episode).torrentFiles().size();
  91                                 allEpisodes.get(episode).addTorrentFile(torrentFile);
  92                                 int newSize = allEpisodes.get(episode).torrentFiles().size();
  93                                 if (!newEpisodes.contains(episode) && (oldSize != newSize)) {
  94                                         changedEpisodes.add(episode);
  95                                 }
  96                         }
  97                 }
  98                 this.allEpisodes.addAll(allEpisodes.values());
  99                 return new EpisodeState(this.allEpisodes);
 100         }
 101
 102         /**
 103          * {@inheritDoc}
 104          */
 105         @Override
 106         public boolean triggers() {
 107                 return !newEpisodes.isEmpty() || !changedEpisodes.isEmpty();
 108         }
 109
 110         /**
 111          * {@inheritDoc}
 112          */
 113         @Override
 114         public Output output(Reaction reaction) {
 115                 String summary;
 116                 if (!newEpisodes.isEmpty()) {
 117                         if (!changedEpisodes.isEmpty()) {
 118                                 summary = String.format("%d new and %d changed Torrent(s) for “%s!”", newEpisodes.size(), changedEpisodes.size(), reaction.name());
 119                         } else {
 120                                 summary = String.format("%d new Torrent(s) for “%s!”", newEpisodes.size(), reaction.name());
 121                         }
 122                 } else {
 123                         summary = String.format("%d changed Torrent(s) for “%s!”", changedEpisodes.size(), reaction.name());
 124                 }
 125                 DefaultOutput output = new DefaultOutput(summary);
 126                 output.addText("text/plain", generatePlainText(reaction, newEpisodes, changedEpisodes, allEpisodes));
 127                 output.addText("text/html", generateHtmlText(reaction, newEpisodes, changedEpisodes, allEpisodes));
 128                 return output;
 129         }
 130
 131         //
 132         // STATIC METHODS
 133         //
 134
 135         /**
 136          * Generates the plain text trigger output.
 137          *
 138          * @param reaction
 139          *            The reaction that was triggered
 140          * @param newEpisodes
 141          *            The new episodes
 142          * @param changedEpisodes
 143          *            The changed episodes
 144          * @param allEpisodes
 145          *            All episodes
 146          * @return The plain text output
 147          */
 148         private static String generatePlainText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes, Collection<Episode> allEpisodes) {
 149                 StringBuilder stringBuilder = new StringBuilder();
 150                 if (!newEpisodes.isEmpty()) {
 151                         stringBuilder.append(reaction.name()).append(" - New Episodes\n\n");
 152                         for (Episode episode : newEpisodes) {
 153                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 154                                 for (TorrentFile torrentFile : episode) {
 155                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 156                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 157                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 158                                         }
 159                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 160                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 161                                         }
 162                                 }
 163                         }
 164                 }
 165                 if (!changedEpisodes.isEmpty()) {
 166                         stringBuilder.append(reaction.name()).append(" - Changed Episodes\n\n");
 167                         for (Episode episode : changedEpisodes) {
 168                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 169                                 for (TorrentFile torrentFile : episode) {
 170                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 171                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 172                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 173                                         }
 174                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 175                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 176                                         }
 177                                 }
 178                         }
 179                 }
 180                 /* list all known episodes. */
 181                 stringBuilder.append(reaction.name()).append(" - All Known Episodes\n\n");
 182                 ImmutableMap<Integer, Collection<Episode>> episodesBySeason = FluentIterable.from(allEpisodes).index(new Function<Episode, Integer>() {
 183
 184                         @Override
 185                         public Integer apply(Episode episode) {
 186                                 return episode.season();
 187                         }
 188                 }).asMap();
 189                 for (Entry<Integer, Collection<Episode>> seasonEntry : episodesBySeason.entrySet()) {
 190                         stringBuilder.append("  Season ").append(seasonEntry.getKey()).append("\n\n");
 191                         for (Episode episode : Ordering.natural().sortedCopy(seasonEntry.getValue())) {
 192                                 stringBuilder.append("    Episode ").append(episode.episode()).append("\n");
 193                                 for (TorrentFile torrentFile : episode) {
 194                                         stringBuilder.append("      Size: ").append(torrentFile.size());
 195                                         stringBuilder.append(" in ").append(torrentFile.fileCount()).append(" file(s): ");
 196                                         stringBuilder.append(torrentFile.magnetUri());
 197                                 }
 198                         }
 199                 }
 200
 201                 return stringBuilder.toString();
 202         }
 203
 204         /**
 205          * Generates the HTML trigger output.
 206          *
 207          * @param reaction
 208          *            The reaction that was triggered
 209          * @param newEpisodes
 210          *            The new episodes
 211          * @param changedEpisodes
 212          *            The changed episodes
 213          * @param allEpisodes
 214          *            All episodes
 215          * @return The HTML output
 216          */
 217         private static String generateHtmlText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes, Collection<Episode> allEpisodes) {
 218                 StringBuilder htmlBuilder = new StringBuilder();
 219                 htmlBuilder.append("<html><body>\n");
 220                 htmlBuilder.append("<h1>").append(StringEscapeUtils.escapeHtml4(reaction.name())).append("</h1>\n");
 221                 if (!newEpisodes.isEmpty()) {
 222                         htmlBuilder.append("<h2>New Episodes</h2>\n");
 223                         htmlBuilder.append("<ul>\n");
 224                         for (Episode episode : newEpisodes) {
 225                                 htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
 226                                 htmlBuilder.append("<ul>\n");
 227                                 for (TorrentFile torrentFile : episode) {
 228                                         htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
 229                                         htmlBuilder.append("<div>");
 230                                         htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
 231                                         htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
 232                                         htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
 233                                         htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
 234                                         htmlBuilder.append("<div>");
 235                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 236                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
 237                                         }
 238                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 239                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a>");
 240                                         }
 241                                         htmlBuilder.append("</div>\n");
 242                                 }
 243                                 htmlBuilder.append("</ul>\n");
 244                         }
 245                         htmlBuilder.append("</ul>\n");
 246                 }
 247                 if (!changedEpisodes.isEmpty()) {
 248                         htmlBuilder.append("<h2>Changed Episodes</h2>\n");
 249                         htmlBuilder.append("<ul>\n");
 250                         for (Episode episode : changedEpisodes) {
 251                                 htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
 252                                 htmlBuilder.append("<ul>\n");
 253                                 for (TorrentFile torrentFile : episode) {
 254                                         htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
 255                                         htmlBuilder.append("<div>");
 256                                         htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
 257                                         htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
 258                                         htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
 259                                         htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
 260                                         htmlBuilder.append("<div>");
 261                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 262                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
 263                                         }
 264                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 265                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a>");
 266                                         }
 267                                         htmlBuilder.append("</div>\n");
 268                                 }
 269                                 htmlBuilder.append("</ul>\n");
 270                         }
 271                         htmlBuilder.append("</ul>\n");
 272                 }
 273                 htmlBuilder.append("</body></html>\n");
 274                 return htmlBuilder.toString();
 275         }
 276
 277 }