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.Ordering;
  41 import com.google.common.collect.Sets;
  42
  43 /**
  44  * {@link Trigger} implementation that compares two {@link EpisodeState}s for
  45  * new and changed {@link Episode}s.
  46  *
  47  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  48  */
  49 public class NewEpisodeTrigger implements Trigger {
  50
  51         /** All new episodes. */
  52         private final Collection<Episode> newEpisodes = Sets.newHashSet();
  53
  54         /** All changed episodes. */
  55         private final Collection<Episode> changedEpisodes = Sets.newHashSet();
  56
  57         /** All episodes. */
  58         private final Collection<Episode> allEpisodes = Sets.newHashSet();
  59
  60         //
  61         // TRIGGER METHODS
  62         //
  63
  64         /**
  65          * {@inheritDocs}
  66          */
  67         @Override
  68         public State mergeStates(State previousState, State currentState) {
  69                 checkState(currentState instanceof EpisodeState, "currentState is not a EpisodeState but a %s", currentState.getClass().getName());
  70                 checkState(previousState instanceof EpisodeState, "previousState is not a EpisodeState but a %s", currentState.getClass().getName());
  71                 newEpisodes.clear();
  72                 changedEpisodes.clear();
  73                 this.allEpisodes.clear();
  74                 Map<Episode, Episode> allEpisodes = FluentIterable.from(((EpisodeState) previousState).episodes()).toMap(new Function<Episode, Episode>() {
  75
  76                         @Override
  77                         public Episode apply(Episode episode) {
  78                                 return episode;
  79                         }
  80                 });
  81                 for (Episode episode : ((EpisodeState) currentState).episodes()) {
  82                         if (!allEpisodes.containsKey(episode)) {
  83                                 allEpisodes.put(episode, episode);
  84                                 newEpisodes.add(episode);
  85                         }
  86                         for (TorrentFile torrentFile : episode.torrentFiles()) {
  87                                 int oldSize = allEpisodes.get(episode).torrentFiles().size();
  88                                 allEpisodes.get(episode).addTorrentFile(torrentFile);
  89                                 int newSize = allEpisodes.get(episode).torrentFiles().size();
  90                                 if (!newEpisodes.contains(episode) && (oldSize != newSize)) {
  91                                         changedEpisodes.add(episode);
  92                                 }
  93                         }
  94                 }
  95                 this.allEpisodes.addAll(allEpisodes.values());
  96                 return new EpisodeState(this.allEpisodes);
  97         }
  98
  99         /**
 100          * {@inheritDoc}
 101          */
 102         @Override
 103         public boolean triggers() {
 104                 return !newEpisodes.isEmpty() || !changedEpisodes.isEmpty();
 105         }
 106
 107         /**
 108          * {@inheritDoc}
 109          */
 110         @Override
 111         public Output output(Reaction reaction) {
 112                 String summary;
 113                 if (!newEpisodes.isEmpty()) {
 114                         if (!changedEpisodes.isEmpty()) {
 115                                 summary = String.format("%d new and %d changed Torrent(s) for “%s!”", newEpisodes.size(), changedEpisodes.size(), reaction.name());
 116                         } else {
 117                                 summary = String.format("%d new Torrent(s) for “%s!”", newEpisodes.size(), reaction.name());
 118                         }
 119                 } else {
 120                         summary = String.format("%d changed Torrent(s) for “%s!”", changedEpisodes.size(), reaction.name());
 121                 }
 122                 DefaultOutput output = new DefaultOutput(summary);
 123                 output.addText("text/plain", generatePlainText(reaction, newEpisodes, changedEpisodes, allEpisodes));
 124                 output.addText("text/html", generateHtmlText(reaction, newEpisodes, changedEpisodes, allEpisodes));
 125                 return output;
 126         }
 127
 128         //
 129         // STATIC METHODS
 130         //
 131
 132         /**
 133          * Generates the plain text trigger output.
 134          *
 135          * @param reaction
 136          *            The reaction that was triggered
 137          * @param newEpisodes
 138          *            The new episodes
 139          * @param changedEpisodes
 140          *            The changed episodes
 141          * @param allEpisodes
 142          *            All episodes
 143          * @return The plain text output
 144          */
 145         private static String generatePlainText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes, Collection<Episode> allEpisodes) {
 146                 StringBuilder stringBuilder = new StringBuilder();
 147                 if (!newEpisodes.isEmpty()) {
 148                         stringBuilder.append(reaction.name()).append(" - New Episodes\n\n");
 149                         for (Episode episode : newEpisodes) {
 150                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 151                                 for (TorrentFile torrentFile : episode) {
 152                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 153                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 154                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 155                                         }
 156                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 157                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 158                                         }
 159                                 }
 160                         }
 161                 }
 162                 if (!changedEpisodes.isEmpty()) {
 163                         stringBuilder.append(reaction.name()).append(" - Changed Episodes\n\n");
 164                         for (Episode episode : changedEpisodes) {
 165                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 166                                 for (TorrentFile torrentFile : episode) {
 167                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 168                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 169                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 170                                         }
 171                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 172                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 173                                         }
 174                                 }
 175                         }
 176                 }
 177                 /* list all known episodes. */
 178                 stringBuilder.append(reaction.name()).append(" - All Known Episodes\n\n");
 179                 ImmutableMap<Integer, Collection<Episode>> episodesBySeason = FluentIterable.from(allEpisodes).index(new Function<Episode, Integer>() {
 180
 181                         @Override
 182                         public Integer apply(Episode episode) {
 183                                 return episode.season();
 184                         }
 185                 }).asMap();
 186                 for (Entry<Integer, Collection<Episode>> seasonEntry : episodesBySeason.entrySet()) {
 187                         stringBuilder.append("  Season ").append(seasonEntry.getKey()).append("\n\n");
 188                         for (Episode episode : Ordering.natural().sortedCopy(seasonEntry.getValue())) {
 189                                 stringBuilder.append("    Episode ").append(episode.episode()).append("\n");
 190                                 for (TorrentFile torrentFile : episode) {
 191                                         stringBuilder.append("      Size: ").append(torrentFile.size());
 192                                         stringBuilder.append(" in ").append(torrentFile.fileCount()).append(" file(s): ");
 193                                         stringBuilder.append(torrentFile.magnetUri());
 194                                 }
 195                         }
 196                 }
 197
 198                 return stringBuilder.toString();
 199         }
 200
 201         /**
 202          * Generates the HTML trigger output.
 203          *
 204          * @param reaction
 205          *            The reaction that was triggered
 206          * @param newEpisodes
 207          *            The new episodes
 208          * @param changedEpisodes
 209          *            The changed episodes
 210          * @param allEpisodes
 211          *            All episodes
 212          * @return The HTML output
 213          */
 214         private static String generateHtmlText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes, Collection<Episode> allEpisodes) {
 215                 StringBuilder htmlBuilder = new StringBuilder();
 216                 htmlBuilder.append("<html><body>\n");
 217                 htmlBuilder.append("<h1>").append(StringEscapeUtils.escapeHtml4(reaction.name())).append("</h1>\n");
 218                 if (!newEpisodes.isEmpty()) {
 219                         htmlBuilder.append("<h2>New Episodes</h2>\n");
 220                         htmlBuilder.append("<ul>\n");
 221                         for (Episode episode : newEpisodes) {
 222                                 htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
 223                                 htmlBuilder.append("<ul>\n");
 224                                 for (TorrentFile torrentFile : episode) {
 225                                         htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
 226                                         htmlBuilder.append("<div>");
 227                                         htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
 228                                         htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
 229                                         htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
 230                                         htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
 231                                         htmlBuilder.append("<div>");
 232                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 233                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
 234                                         }
 235                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 236                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a>");
 237                                         }
 238                                         htmlBuilder.append("</div>\n");
 239                                 }
 240                                 htmlBuilder.append("</ul>\n");
 241                         }
 242                         htmlBuilder.append("</ul>\n");
 243                 }
 244                 if (!changedEpisodes.isEmpty()) {
 245                         htmlBuilder.append("<h2>Changed Episodes</h2>\n");
 246                         htmlBuilder.append("<ul>\n");
 247                         for (Episode episode : changedEpisodes) {
 248                                 htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
 249                                 htmlBuilder.append("<ul>\n");
 250                                 for (TorrentFile torrentFile : episode) {
 251                                         htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
 252                                         htmlBuilder.append("<div>");
 253                                         htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
 254                                         htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
 255                                         htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
 256                                         htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
 257                                         htmlBuilder.append("<div>");
 258                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 259                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
 260                                         }
 261                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 262                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a>");
 263                                         }
 264                                         htmlBuilder.append("</div>\n");
 265                                 }
 266                                 htmlBuilder.append("</ul>\n");
 267                         }
 268                         htmlBuilder.append("</ul>\n");
 269                 }
 270                 htmlBuilder.append("</body></html>\n");
 271                 return htmlBuilder.toString();
 272         }
 273
 274 }