--- /dev/null
+/*
+ * Reactor - EpisodeFilter.java - Copyright © 2013 David Roden
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.reactor.filters;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import java.util.LinkedHashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import net.pterodactylus.reactor.Filter;
+import net.pterodactylus.reactor.State;
+import net.pterodactylus.reactor.states.EpisodeState;
+import net.pterodactylus.reactor.states.EpisodeState.Episode;
+import net.pterodactylus.reactor.states.FailedState;
+import net.pterodactylus.reactor.states.TorrentState;
+import net.pterodactylus.reactor.states.TorrentState.TorrentFile;
+
+/**
+ * {@link Filter} implementation that extracts {@link Episode} information from
+ * the {@link TorrentFile}s contained in a {@link TorrentState}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class EpisodeFilter implements Filter {
+
+ /** The pattern to parse episode information from the filename. */
+ private static Pattern episodePattern = Pattern.compile("S(\\d{2})E(\\d{2})|[^\\d](\\d{1,2})x(\\d{2})[^\\d]");
+
+ //
+ // FILTER METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public State filter(State state) {
+ if (!state.success()) {
+ return FailedState.from(state);
+ }
+ checkState(state instanceof TorrentState, "state is not a TorrentState but a %s!", state.getClass());
+
+ TorrentState torrentState = (TorrentState) state;
+ LinkedHashMap<Episode, Episode> episodes = new LinkedHashMap<Episode, Episode>();
+ for (TorrentFile torrentFile : torrentState) {
+ Episode episode = extractEpisode(torrentFile);
+ if (episode == null) {
+ continue;
+ }
+ episodes.put(episode, episode);
+ episode = episodes.get(episode);
+ episode.addTorrentFile(torrentFile);
+ }
+
+ return new EpisodeState(episodes.values());
+ }
+
+ //
+ // STATIC METHODS
+ //
+
+ /**
+ * Extracts episode information from the given torrent file.
+ *
+ * @param torrentFile
+ * The torrent file to extract the episode information from
+ * @return The extracted episode information, or {@code null} if no episode
+ * information could be found
+ */
+ private static Episode extractEpisode(TorrentFile torrentFile) {
+ Matcher matcher = episodePattern.matcher(torrentFile.name());
+ if (!matcher.find()) {
+ return null;
+ }
+ String seasonString = matcher.group(1);
+ String episodeString = matcher.group(2);
+ if ((seasonString == null) && (episodeString == null)) {
+ seasonString = matcher.group(3);
+ episodeString = matcher.group(4);
+ }
+ int season = Integer.valueOf(seasonString);
+ int episode = Integer.valueOf(episodeString);
+ return new Episode(season, episode);
+ }
+
+}
--- /dev/null
+/*
+ * Reactor - EpisodeState.java - Copyright © 2013 David Roden
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.reactor.states;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+import net.pterodactylus.reactor.State;
+import net.pterodactylus.reactor.filters.EpisodeFilter;
+import net.pterodactylus.reactor.states.EpisodeState.Episode;
+import net.pterodactylus.reactor.states.TorrentState.TorrentFile;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * {@link State} implementation that stores episodes of TV shows, parsed via
+ * {@link EpisodeFilter} from a previous {@link TorrentState}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class EpisodeState extends AbstractState implements Iterable<Episode> {
+
+ /** The episodes found in the current request. */
+ @JsonProperty
+ private final List<Episode> episodes = new ArrayList<Episode>();
+
+ /**
+ * No-arg constructor for deserialization.
+ */
+ @SuppressWarnings("unused")
+ private EpisodeState() {
+ this(Collections.<Episode> emptySet());
+ }
+
+ /**
+ * Creates a new episode state.
+ *
+ * @param episodes
+ * The episodes of the request
+ */
+ public EpisodeState(Collection<Episode> episodes) {
+ this.episodes.addAll(episodes);
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Returns all episodes contained in this state.
+ *
+ * @return The episodes of this state
+ */
+ public Collection<Episode> episodes() {
+ return Collections.unmodifiableCollection(episodes);
+ }
+
+ //
+ // ITERABLE INTERFACE
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public Iterator<Episode> iterator() {
+ return episodes.iterator();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public String toString() {
+ return String.format("%s[episodes=%s]", getClass().getSimpleName(), episodes);
+ }
+
+ /**
+ * Stores attributes for an episode.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+ public static class Episode implements Iterable<TorrentFile> {
+
+ /** The season of the episode. */
+ @JsonProperty
+ private final int season;
+
+ /** The number of the episode. */
+ @JsonProperty
+ private final int episode;
+
+ /** The torrent files for this episode. */
+ @JsonProperty
+ private final List<TorrentFile> torrentFiles = new ArrayList<TorrentFile>();
+
+ /**
+ * No-arg constructor for deserialization.
+ */
+ @SuppressWarnings("unused")
+ private Episode() {
+ this(0, 0);
+ }
+
+ /**
+ * Creates a new episode.
+ *
+ * @param season
+ * The season of the episode
+ * @param episode
+ * The number of the episode
+ */
+ public Episode(int season, int episode) {
+ this.season = season;
+ this.episode = episode;
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Returns the season of this episode.
+ *
+ * @return The season of this episode
+ */
+ public int season() {
+ return season;
+ }
+
+ /**
+ * Returns the number of this episode.
+ *
+ * @return The number of this episode
+ */
+ public int episode() {
+ return episode;
+ }
+
+ /**
+ * Returns the torrent files of this episode.
+ *
+ * @return The torrent files of this episode
+ */
+ public Collection<TorrentFile> torrentFiles() {
+ return torrentFiles;
+ }
+
+ /**
+ * Returns the identifier of this episode.
+ *
+ * @return The identifier of this episode
+ */
+ public String identifier() {
+ return String.format("S%02dE%02d", season, episode);
+ }
+
+ //
+ // ACTIONS
+ //
+
+ /**
+ * Adds the given torrent file to this episode.
+ *
+ * @param torrentFile
+ * The torrent file to add
+ */
+ public void addTorrentFile(TorrentFile torrentFile) {
+ torrentFiles.add(torrentFile);
+ }
+
+ //
+ // ITERABLE METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public Iterator<TorrentFile> iterator() {
+ return torrentFiles.iterator();
+ }
+
+ //
+ // OBJECT METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public int hashCode() {
+ return season * 65536 + episode;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean equals(Object obj) {
+ if (!(obj instanceof Episode)) {
+ return false;
+ }
+ Episode episode = (Episode) obj;
+ return (season == episode.season) && (this.episode == episode.episode);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public String toString() {
+ return String.format("%s[season=%d,episode=%d,torrentFiles=%s]", getClass().getSimpleName(), season, episode, torrentFiles);
+ }
+
+ }
+
+}
--- /dev/null
+/*
+ * Reactor - NewEpisodeTrigger.java - Copyright © 2013 David Roden
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.reactor.triggers;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import java.util.Collection;
+
+import net.pterodactylus.reactor.Reaction;
+import net.pterodactylus.reactor.State;
+import net.pterodactylus.reactor.Trigger;
+import net.pterodactylus.reactor.output.DefaultOutput;
+import net.pterodactylus.reactor.output.Output;
+import net.pterodactylus.reactor.states.EpisodeState;
+import net.pterodactylus.reactor.states.EpisodeState.Episode;
+import net.pterodactylus.reactor.states.TorrentState.TorrentFile;
+
+import org.apache.commons.lang3.StringEscapeUtils;
+
+import com.google.common.base.Predicate;
+import com.google.common.collect.Collections2;
+
+/**
+ * {@link Trigger} implementation that compares two {@link EpisodeState}s for
+ * new and changed {@link Episode}s.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class NewEpisodeTrigger implements Trigger {
+
+ /** All new episodes. */
+ private Collection<Episode> newEpisodes;
+
+ /** All changed episodes. */
+ private Collection<Episode> changedEpisodes;
+
+ //
+ // TRIGGER METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean triggers(State currentState, State previousState) {
+ checkState(currentState instanceof EpisodeState, "currentState is not a EpisodeState but a %s", currentState.getClass().getName());
+ checkState(previousState instanceof EpisodeState, "previousState is not a EpisodeState but a %s", currentState.getClass().getName());
+ final EpisodeState currentEpisodeState = (EpisodeState) currentState;
+ final EpisodeState previousEpisodeState = (EpisodeState) previousState;
+
+ newEpisodes = Collections2.filter(currentEpisodeState.episodes(), new Predicate<Episode>() {
+
+ @Override
+ public boolean apply(Episode episode) {
+ return !previousEpisodeState.episodes().contains(episode);
+ }
+ });
+
+ changedEpisodes = Collections2.filter(currentEpisodeState.episodes(), new Predicate<Episode>() {
+
+ @Override
+ public boolean apply(Episode episode) {
+ if (!previousEpisodeState.episodes().contains(episode)) {
+ return false;
+ }
+
+ /* find previous episode. */
+ final Episode previousEpisode = findPreviousEpisode(episode);
+
+ /* compare the list of torrent files. */
+ Collection<TorrentFile> newTorrentFiles = Collections2.filter(episode.torrentFiles(), new Predicate<TorrentFile>() {
+
+ @Override
+ public boolean apply(TorrentFile torrentFile) {
+ return !previousEpisode.torrentFiles().contains(torrentFile);
+ }
+ });
+
+ return !newTorrentFiles.isEmpty();
+ }
+
+ private Episode findPreviousEpisode(Episode episode) {
+ for (Episode previousStateEpisode : previousEpisodeState) {
+ if (previousStateEpisode.equals(episode)) {
+ return previousStateEpisode;
+ }
+ }
+ return null;
+ }
+
+ });
+
+ return !newEpisodes.isEmpty() || !changedEpisodes.isEmpty();
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public Output output(Reaction reaction) {
+ String summary;
+ if (!newEpisodes.isEmpty()) {
+ if (!changedEpisodes.isEmpty()) {
+ summary = String.format("%d new and %d changed Torrent(s) for “!”", newEpisodes.size(), changedEpisodes.size(), reaction.name());
+ } else {
+ summary = String.format("%d new Torrent(s) for “%s!”", newEpisodes.size(), reaction.name());
+ }
+ } else {
+ summary = String.format("%d changed Torrent(s) for “%s!”", changedEpisodes.size(), reaction.name());
+ }
+ DefaultOutput output = new DefaultOutput(summary);
+ output.addText("text/plain", generatePlainText(reaction, newEpisodes, changedEpisodes));
+ output.addText("text/html", generateHtmlText(reaction, newEpisodes, changedEpisodes));
+ return output;
+ }
+
+ //
+ // STATIC METHODS
+ //
+
+ /**
+ * Generates the plain text trigger output.
+ *
+ * @param reaction
+ * The reaction that was triggered
+ * @param newEpisodes
+ * The new episodes
+ * @param changedEpisodes
+ * The changed episodes
+ * @return The plain text output
+ */
+ private static String generatePlainText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes) {
+ StringBuilder stringBuilder = new StringBuilder();
+ if (!newEpisodes.isEmpty()) {
+ stringBuilder.append(reaction.name()).append(" - New Episodes\n\n");
+ for (Episode episode : newEpisodes) {
+ stringBuilder.append("- ").append(episode.identifier()).append("\n");
+ for (TorrentFile torrentFile : episode) {
+ stringBuilder.append(" - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
+ stringBuilder.append(" Magnet: ").append(torrentFile.magnetUri()).append("\n");
+ stringBuilder.append(" Download: ").append(torrentFile.downloadUri()).append("\n");
+ }
+ }
+ }
+ if (!changedEpisodes.isEmpty()) {
+ stringBuilder.append(reaction.name()).append(" - Changed Episodes\n\n");
+ for (Episode episode : changedEpisodes) {
+ stringBuilder.append("- ").append(episode.identifier()).append("\n");
+ for (TorrentFile torrentFile : episode) {
+ stringBuilder.append(" - ").append(torrentFile.name()).append(", ").append(torrentFile.size()).append("\n");
+ stringBuilder.append(" Magnet: ").append(torrentFile.magnetUri()).append("\n");
+ stringBuilder.append(" Download: ").append(torrentFile.downloadUri()).append("\n");
+ }
+ }
+ }
+ return stringBuilder.toString();
+ }
+
+ /**
+ * Generates the HTML trigger output.
+ *
+ * @param reaction
+ * The reaction that was triggered
+ * @param newEpisodes
+ * The new episodes
+ * @param changedEpisodes
+ * The changed episodes
+ * @return The HTML output
+ */
+ private static String generateHtmlText(Reaction reaction, Collection<Episode> newEpisodes, Collection<Episode> changedEpisodes) {
+ StringBuilder htmlBuilder = new StringBuilder();
+ htmlBuilder.append("<html><body>\n");
+ htmlBuilder.append("<h1>").append(StringEscapeUtils.escapeHtml4(reaction.name())).append("</h1>\n");
+ if (!newEpisodes.isEmpty()) {
+ htmlBuilder.append("<h2>New Episodes</h2>\n");
+ htmlBuilder.append("<ul>\n");
+ for (Episode episode : newEpisodes) {
+ htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
+ htmlBuilder.append("<ul>\n");
+ for (TorrentFile torrentFile : episode) {
+ htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
+ htmlBuilder.append("<div>");
+ htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
+ htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
+ htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
+ htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
+ htmlBuilder.append("<div><a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
+ htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a></div>\n");
+ }
+ htmlBuilder.append("</ul>\n");
+ }
+ htmlBuilder.append("</ul>\n");
+ }
+ if (!changedEpisodes.isEmpty()) {
+ htmlBuilder.append("<h2>Changed Episodes</h2>\n");
+ htmlBuilder.append("<ul>\n");
+ for (Episode episode : changedEpisodes) {
+ htmlBuilder.append("<li>Season ").append(episode.season()).append(", Episode ").append(episode.episode()).append("</li>\n");
+ htmlBuilder.append("<ul>\n");
+ for (TorrentFile torrentFile : episode) {
+ htmlBuilder.append("<li>").append(StringEscapeUtils.escapeHtml4(torrentFile.name())).append("</li>\n");
+ htmlBuilder.append("<div>");
+ htmlBuilder.append("<strong>").append(StringEscapeUtils.escapeHtml4(torrentFile.size())).append("</strong>, ");
+ htmlBuilder.append("<strong>").append(torrentFile.fileCount()).append("</strong> file(s), ");
+ htmlBuilder.append("<strong>").append(torrentFile.seedCount()).append("</strong> seed(s), ");
+ htmlBuilder.append("<strong>").append(torrentFile.leechCount()).append("</strong> leecher(s)</div>\n");
+ htmlBuilder.append("<div><a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.magnetUri())).append("\">Magnet</a> ");
+ htmlBuilder.append("<a href=\"").append(StringEscapeUtils.escapeHtml4(torrentFile.downloadUri())).append("\">Download</a></div>\n");
+ }
+ htmlBuilder.append("</ul>\n");
+ }
+ htmlBuilder.append("</ul>\n");
+ }
+ htmlBuilder.append("</body></html>\n");
+ return htmlBuilder.toString();
+ }
+
+}