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.Maps;
  41 import com.google.common.collect.Ordering;
  42 import com.google.common.collect.Sets;
  43
  44 /**
  45  * {@link Trigger} implementation that compares two {@link EpisodeState}s for
  46  * new and changed {@link Episode}s.
  47  *
  48  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  49  */
  50 public class NewEpisodeTrigger implements Trigger {
  51
  52         /** All episodes. */
  53         private final Collection<Episode> allEpisodes = Sets.newHashSet();
  54
  55         /** All new episodes. */
  56         private final Collection<Episode> newEpisodes = Sets.newHashSet();
  57
  58         /** All changed episodes. */
  59         private final Collection<Episode> changedEpisodes = Sets.newHashSet();
  60
  61
  62         //
  63         // TRIGGER METHODS
  64         //
  65
  66         /**
  67          * {@inheritDocs}
  68          */
  69         @Override
  70         public State mergeStates(State previousState, State currentState) {
  71                 checkState(currentState instanceof EpisodeState, "currentState is not a EpisodeState but a %s", currentState.getClass().getName());
  72                 checkState(previousState instanceof EpisodeState, "previousState is not a EpisodeState but a %s", currentState.getClass().getName());
  73                 newEpisodes.clear();
  74                 changedEpisodes.clear();
  75                 this.allEpisodes.clear();
  76                 Map<Episode, Episode> allEpisodes = Maps.newHashMap(FluentIterable.from(((EpisodeState) previousState).episodes()).toMap(new Function<Episode, Episode>() {
  77
  78                         @Override
  79                         public Episode apply(Episode episode) {
  80                                 return episode;
  81                         }
  82                 }));
  83                 for (Episode episode : ((EpisodeState) currentState).episodes()) {
  84                         if (!allEpisodes.containsKey(episode)) {
  85                                 allEpisodes.put(episode, episode);
  86                                 newEpisodes.add(episode);
  87                         }
  88                         for (TorrentFile torrentFile : episode.torrentFiles()) {
  89                                 int oldSize = allEpisodes.get(episode).torrentFiles().size();
  90                                 allEpisodes.get(episode).addTorrentFile(torrentFile);
  91                                 int newSize = allEpisodes.get(episode).torrentFiles().size();
  92                                 if (!newEpisodes.contains(episode) && (oldSize != newSize)) {
  93                                         changedEpisodes.add(episode);
  94                                 }
  95                         }
  96                 }
  97                 this.allEpisodes.addAll(allEpisodes.values());
  98                 return new EpisodeState(this.allEpisodes);
  99         }
 100
 101         /**
 102          * {@inheritDoc}
 103          */
 104         @Override
 105         public boolean triggers() {
 106                 return !newEpisodes.isEmpty() || !changedEpisodes.isEmpty();
 107         }
 108
 109         /**
 110          * {@inheritDoc}
 111          */
 112         @Override
 113         public Output output(Reaction reaction) {
 114                 String summary;
 115                 if (!newEpisodes.isEmpty()) {
 116                         if (!changedEpisodes.isEmpty()) {
 117                                 summary = String.format("%d new and %d changed Torrent(s) for “%s!”", newEpisodes.size(), changedEpisodes.size(), reaction.name());
 118                         } else {
 119                                 summary = String.format("%d new Torrent(s) for “%s!”", newEpisodes.size(), reaction.name());
 120                         }
 121                 } else {
 122                         summary = String.format("%d changed Torrent(s) for “%s!”", changedEpisodes.size(), reaction.name());
 123                 }
 124                 DefaultOutput output = new DefaultOutput(summary);
 125                 output.addText("text/plain", generatePlainText(reaction, newEpisodes, changedEpisodes, allEpisodes));
 126                 output.addText("text/html", generateHtmlText(reaction, newEpisodes, changedEpisodes, allEpisodes));
 127                 return output;
 128         }
 129
 130         //
 131         // STATIC METHODS
 132         //
 133
 134         /**
 135          * Generates the plain text trigger output.
 136          *
 137          * @param reaction
 138          *            The reaction that was triggered
 139          * @param newEpisodes
 140          *            The new episodes
 141          * @param changedEpisodes
 142          *            The changed episodes
 143          * @param allEpisodes
 144          *            All episodes
 145          * @return The plain text output
 146          */
 147         private static String generatePlainText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes, Collection<Episode> allEpisodes) {
 148                 StringBuilder stringBuilder = new StringBuilder();
 149                 if (!newEpisodes.isEmpty()) {
 150                         stringBuilder.append(reaction.name()).append(" - New Episodes\n\n");
 151                         for (Episode episode : newEpisodes) {
 152                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 153                                 for (TorrentFile torrentFile : episode) {
 154                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 155                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 156                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 157                                         }
 158                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 159                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 160                                         }
 161                                 }
 162                         }
 163                 }
 164                 if (!changedEpisodes.isEmpty()) {
 165                         stringBuilder.append(reaction.name()).append(" - Changed Episodes\n\n");
 166                         for (Episode episode : changedEpisodes) {
 167                                 stringBuilder.append("- ").append(episode.identifier()).append("\n");
 168                                 for (TorrentFile torrentFile : episode) {
 169                                         stringBuilder.append("  - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
 170                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 171                                                 stringBuilder.append("    Magnet: ").append(torrentFile.magnetUri()).append("\n");
 172                                         }
 173                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 174                                                 stringBuilder.append("    Download: ").append(torrentFile.downloadUri()).append("\n");
 175                                         }
 176                                 }
 177                         }
 178                 }
 179                 /* list all known episodes. */
 180                 stringBuilder.append(reaction.name()).append(" - All Known Episodes\n\n");
 181                 ImmutableMap<Integer, Collection<Episode>> episodesBySeason = FluentIterable.from(allEpisodes).index(new Function<Episode, Integer>() {
 182
 183                         @Override
 184                         public Integer apply(Episode episode) {
 185                                 return episode.season();
 186                         }
 187                 }).asMap();
 188                 for (Entry<Integer, Collection<Episode>> seasonEntry : episodesBySeason.entrySet()) {
 189                         stringBuilder.append("  Season ").append(seasonEntry.getKey()).append("\n\n");
 190                         for (Episode episode : Ordering.natural().sortedCopy(seasonEntry.getValue())) {
 191                                 stringBuilder.append("    Episode ").append(episode.episode()).append("\n");
 192                                 for (TorrentFile torrentFile : episode) {
 193                                         stringBuilder.append("      Size: ").append(torrentFile.size());
 194                                         stringBuilder.append(" in ").append(torrentFile.fileCount()).append(" file(s): ");
 195                                         stringBuilder.append(torrentFile.magnetUri());
 196                                 }
 197                         }
 198                 }
 199
 200                 return stringBuilder.toString();
 201         }
 202
 203         /**
 204          * Generates the HTML trigger output.
 205          *
 206          * @param reaction
 207          *            The reaction that was triggered
 208          * @param newEpisodes
 209          *            The new episodes
 210          * @param changedEpisodes
 211          *            The changed episodes
 212          * @param allEpisodes
 213          *            All episodes
 214          * @return The HTML output
 215          */
 216         private static String generateHtmlText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes, Collection<Episode> allEpisodes) {
 217                 StringBuilder htmlBuilder = new StringBuilder();
 218                 htmlBuilder.append("<html><body>\n");
 219                 htmlBuilder.append("<h1>").append(StringEscapeUtils.escapeHtml4(reaction.name())).append("</h1>\n");
 220                 if (!newEpisodes.isEmpty()) {
 221                         htmlBuilder.append("<h2>New Episodes</h2>\n");
 222                         htmlBuilder.append("<ul>\n");
 223                         for (Episode episode : newEpisodes) {
 224                                 htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
 225                                 htmlBuilder.append("<ul>\n");
 226                                 for (TorrentFile torrentFile : episode) {
 227                                         htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
 228                                         htmlBuilder.append("<div>");
 229                                         htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
 230                                         htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
 231                                         htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
 232                                         htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
 233                                         htmlBuilder.append("<div>");
 234                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 235                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
 236                                         }
 237                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 238                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a>");
 239                                         }
 240                                         htmlBuilder.append("</div>\n");
 241                                 }
 242                                 htmlBuilder.append("</ul>\n");
 243                         }
 244                         htmlBuilder.append("</ul>\n");
 245                 }
 246                 if (!changedEpisodes.isEmpty()) {
 247                         htmlBuilder.append("<h2>Changed Episodes</h2>\n");
 248                         htmlBuilder.append("<ul>\n");
 249                         for (Episode episode : changedEpisodes) {
 250                                 htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
 251                                 htmlBuilder.append("<ul>\n");
 252                                 for (TorrentFile torrentFile : episode) {
 253                                         htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
 254                                         htmlBuilder.append("<div>");
 255                                         htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
 256                                         htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
 257                                         htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
 258                                         htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
 259                                         htmlBuilder.append("<div>");
 260                                         if ((torrentFile.magnetUri() != null) && (torrentFile.magnetUri().length() > 0)) {
 261                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
 262                                         }
 263                                         if ((torrentFile.downloadUri() != null) && (torrentFile.downloadUri().length() > 0)) {
 264                                                 htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a>");
 265                                         }
 266                                         htmlBuilder.append("</div>\n");
 267                                 }
 268                                 htmlBuilder.append("</ul>\n");
 269                         }
 270                         htmlBuilder.append("</ul>\n");
 271                 }
 272                 htmlBuilder.append("</body></html>\n");
 273                 return htmlBuilder.toString();
 274         }
 275
 276 }