Merge pull request #745 from DRE2N/group-adapter; resolves #91

Group adapter API and basic Parties integration; resolves #91

api/src/main/java/de/erethon/dungeonsxl/api/player/GroupAdapter.java

@@ -14,10 +14,16 @@
  */
 package de.erethon.dungeonsxl.api.player;
 
+import de.erethon.dungeonsxl.api.DungeonsAPI;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
 import org.bukkit.entity.Player;
 
 /**
  * Implement and register in order to track a group.
+ * <p>
+ * See implementation classes in de.erethon.dungeonsxl.player.groupadapter for reference.
  *
  * @param <T> the external group object
  * @author Daniel Saukel
@@ -44,12 +50,50 @@ public abstract class GroupAdapter<T> {
         ONLINE
     }
 
+    public class ExternalGroupData<T> {
+
+        private T eGroup;
+        private boolean createdByDXL;
+
+        public ExternalGroupData(T eGroup, boolean createdByDXL) {
+            this.eGroup = eGroup;
+            this.createdByDXL = createdByDXL;
+        }
+
+        /**
+         * Returns the wrapped external group object.
+         *
+         * @return the wrapped external group object
+         */
+        public T get() {
+            return eGroup;
+        }
+
+        /**
+         * Returns if the external group was created by DungeonsXL.
+         * <p>
+         * Groups may be created by DungeonsXL, for example through a command, a group sign or automatically if a dungeon is entered.
+         * The integration implementation should give dungeon groups equivalent groups from the external group plugin.
+         * External groups created to mirror dungeon groups should be removed when their dungeon group is deleted, but those created intentionally should not.
+         *
+         * @return if the external group was created by DungeonsXL.
+         */
+        public boolean isCreatedByDXL() {
+            return createdByDXL;
+        }
+
+    }
+
+    protected DungeonsAPI dxl;
     private Philosophy philosophy;
+    protected Map<PlayerGroup, ExternalGroupData<T>> groups = new HashMap<>();
 
     /**
+     * @param dxl        the DungeonsAPI instance
      * @param philosophy the player handling philosophy
      */
-    protected GroupAdapter(Philosophy philosophy) {
+    protected GroupAdapter(DungeonsAPI dxl, Philosophy philosophy) {
+        this.dxl = dxl;
         this.philosophy = philosophy;
     }
 
@@ -68,11 +112,10 @@ public abstract class GroupAdapter<T> {
      * @param eGroup the external group
      * @return a dungeon group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the external group
      */
-    public abstract PlayerGroup createPlayerGroup(T eGroup);
+    public abstract PlayerGroup createDungeonGroup(T eGroup);
 
     /**
-     * Creates an external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon
-     * group.
+     * Creates an external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon group.
      *
      * @param dGroup the dungeon group
      * @return an external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon group
@@ -80,24 +123,30 @@ public abstract class GroupAdapter<T> {
     public abstract T createExternalGroup(PlayerGroup dGroup);
 
     /**
-     * Returns the dungeon group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the external
-     * group or null of none exists.
+     * Returns the dungeon group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the external group or null of none exists.
      *
      * @param eGroup the external group
-     * @return the dungeon group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the external
-     *         group
+     * @return the dungeon group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the external group
      */
-    public abstract PlayerGroup getPlayerGroup(T eGroup);
+    public PlayerGroup getDungeonGroup(T eGroup) {
+        for (Entry<PlayerGroup, ExternalGroupData<T>> entry : groups.entrySet()) {
+            if (entry.getValue().get().equals(eGroup)) {
+                return entry.getKey();
+            }
+        }
+        return null;
+    }
 
     /**
-     * Returns the external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon
-     * group.
+     * Returns the external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon group.
      *
      * @param dGroup the dungeon group
-     * @return the external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon
-     *         group
+     * @return the external group {@link #areCorresponding(PlayerGroup, Object) corresponding} with the dungeon group
      */
-    public abstract T getExternalGroup(PlayerGroup dGroup);
+    public T getExternalGroup(PlayerGroup dGroup) {
+        ExternalGroupData<T> data = groups.get(dGroup);
+        return data != null ? data.get() : null;
+    }
 
     /**
      * Returns the dungeon group that mirrors the external group.
@@ -107,10 +156,10 @@ public abstract class GroupAdapter<T> {
      * @param eGroup the dungeon group
      * @return the dungeon group that mirrors the dungeon group
      */
-    public PlayerGroup getOrCreatePlayerGroup(T eGroup) {
-        PlayerGroup dGroup = getPlayerGroup(eGroup);
+    public PlayerGroup getOrCreateDungeonGroup(T eGroup) {
+        PlayerGroup dGroup = getDungeonGroup(eGroup);
         if (dGroup == null) {
-            dGroup = createPlayerGroup(eGroup);
+            dGroup = createDungeonGroup(eGroup);
         }
         return dGroup;
     }
@@ -131,6 +180,14 @@ public abstract class GroupAdapter<T> {
         return eGroup;
     }
 
+    /**
+     * Returns the external group of the given group member.
+     *
+     * @param member the group member
+     * @return the external group of the given group member
+     */
+    public abstract T getExternalGroup(Player member);
+
     /**
      * Checks if two groups are corresponding.
      * <p>
@@ -142,7 +199,30 @@ public abstract class GroupAdapter<T> {
      * @param eGroup the external group
      * @return if the two groups are corresponding
      */
-    public abstract boolean areCorresponding(PlayerGroup dGroup, T eGroup);
+    public boolean areCorresponding(PlayerGroup dGroup, T eGroup) {
+        if (dGroup == null || eGroup == null) {
+            return false;
+        }
+        ExternalGroupData<T> data = groups.get(dGroup);
+        return data != null && eGroup.equals(data.get());
+    }
+
+    /**
+     * Deletes the external group corresponding with the given dungeon group.
+     *
+     * @param dGroup the dungeon group corresponding with the external one to delete
+     * @return if the deletion was successful
+     */
+    public abstract boolean deleteCorrespondingGroup(PlayerGroup dGroup);
+
+    /**
+     * Checks if the two groups have the same members.
+     *
+     * @param dGroup the dungeon group
+     * @param eGroup the external group
+     * @return if the two groups have the same members
+     */
+    public abstract boolean areSimilar(PlayerGroup dGroup, T eGroup);
 
     /**
      * Ensures that the player is in {@link #areCorresponding(PlayerGroup, Object) corresponding} groups.
@@ -151,13 +231,66 @@ public abstract class GroupAdapter<T> {
      * If no dungeon group exists, it is created automatically. Switching dungeon groups forces the player to leave their dungeon.
      * <p>
      * If the player is in a dungeon group but not in an external group, the player is added to the corresponding external group if it exists.
-     * If no corresponding external group exists, a new one is only created if the {@link #getPhilosophy() philosophy} is either
-     * {@link Philosophy#RUNTIME} or {@link Philosophy#ONLINE}.
+     * If no corresponding external group exists, a new one is created.
      *
      * @param player the player
      */
-    public void syncPlayer(Player player) {
-        throw new UnsupportedOperationException("TODO");
+    public void syncJoin(Player player) {
+        T eGroup = getExternalGroup(player);
+        PlayerGroup dGroup = dxl.getPlayerGroup(player);
+
+        if (eGroup != null && !areCorresponding(dGroup, eGroup)) {
+            if (areSimilar(dGroup, eGroup)) {
+                // The groups are not yet marked as corresponding because one of them is still being created.
+                return;
+            }
+            if (dGroup != null) {
+                dGroup.removePlayer(player, false);
+                return;
+            }
+            dGroup = getDungeonGroup(eGroup);
+            if (dGroup != null && !dGroup.getMembers().contains(player)) {
+                dGroup.addPlayer(player);
+            } else {
+                dGroup = createDungeonGroup(eGroup);
+            }
+
+        } else if (eGroup == null && dGroup != null) {
+            eGroup = getExternalGroup(dGroup);
+            if (eGroup == null) {
+                eGroup = createExternalGroup(dGroup);
+            }
+            if (!isExternalGroupMember(eGroup, player)) {
+                addExternalGroupMember(eGroup, player);
+            }
+        }
     }
 
+    /**
+     * Returns if the player is a member of the external group.
+     *
+     * @param eGroup the external group
+     * @param player player
+     * @return if the player is a member of the external group
+     */
+    public abstract boolean isExternalGroupMember(T eGroup, Player player);
+
+    /**
+     * Adds the member to the external group.
+     *
+     * @param eGroup the external group
+     * @param member the member
+     * @return if adding the member was successful
+     */
+    public abstract boolean addExternalGroupMember(T eGroup, Player member);
+
+    /**
+     * Removes the member from the external group.
+     *
+     * @param eGroup the external group
+     * @param member the member
+     * @return if removing the player was successful
+     */
+    public abstract boolean removeExternalGroupMember(T eGroup, Player member);
+
 }

core/pom.xml

@@ -89,6 +89,11 @@
             <version>2.10.2</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>com.alessiodp.parties</groupId>
+            <artifactId>parties-api</artifactId>
+            <version>2.6.14</version>
+        </dependency>
     </dependencies>
     <repositories>
         <repository>
@@ -107,5 +112,9 @@
             <id>placeholderapi</id>
             <url>http://repo.extendedclip.com/content/repositories/placeholderapi/</url>
         </repository>
+        <repository>
+            <id>codemc-repo</id>
+            <url>https://repo.codemc.org/repository/maven-public/</url>
+        </repository>
     </repositories>
 </project>

core/src/main/java/de/erethon/dungeonsxl/DungeonsXL.java

@@ -68,6 +68,7 @@ import de.erethon.dungeonsxl.player.DGroup;
 import de.erethon.dungeonsxl.player.DPermission;
 import de.erethon.dungeonsxl.player.DPlayerListener;
 import de.erethon.dungeonsxl.player.SecureModeTask;
+import de.erethon.dungeonsxl.player.groupadapter.*;
 import de.erethon.dungeonsxl.requirement.*;
 import de.erethon.dungeonsxl.reward.*;
 import de.erethon.dungeonsxl.sign.DSignListener;
@@ -137,6 +138,7 @@ public class DungeonsXL extends DREPlugin implements DungeonsAPI {
     private Registry<String, GameRule> gameRuleRegistry = new GameRuleRegistry();
     private Registry<String, ExternalMobProvider> externalMobProviderRegistry = new Registry<>();
     private Registry<String, PlayerGroup> playerGroupCache = new Registry<>();
+    private Collection<GroupAdapter> groupAdapters = new ArrayList<>();
 
     @Deprecated
     private class SignRegistry extends Registry<String, Class<? extends DungeonSign>> {
@@ -213,6 +215,9 @@ public class DungeonsXL extends DREPlugin implements DungeonsAPI {
         if (manager.isPluginEnabled("PlaceholderAPI")) {
             new PlaceholderUtil(this, "dxl").register();
         }
+        if (manager.isPluginEnabled("Parties")) {
+            registerGroupAdapter(new PartiesAdapter(this));
+        }
         VignetteAPI.init(this);
     }
 
@@ -530,7 +535,16 @@ public class DungeonsXL extends DREPlugin implements DungeonsAPI {
 
     @Override
     public void registerGroupAdapter(GroupAdapter groupAdapter) {
-        throw new UnsupportedOperationException("Not supported yet.");
+        groupAdapters.add(groupAdapter);
+    }
+
+    /**
+     * Returns a collection of the loadedGroupAdapters
+     *
+     * @return a collection of GroupAdapters
+     */
+    public Collection<GroupAdapter> getGroupAdapters() {
+        return groupAdapters;
     }
 
     /**

core/src/main/java/de/erethon/dungeonsxl/player/DGroup.java

@@ -216,6 +216,8 @@ public class DGroup implements PlayerGroup {
 
             players.add(player.getUniqueId());
         }
+
+        plugin.getGroupAdapters().forEach(a -> a.syncJoin(player));
     }
 
     @Override
@@ -238,8 +240,11 @@ public class DGroup implements PlayerGroup {
 
             if (!event.isCancelled()) {
                 delete();
+                return;
             }
         }
+
+        plugin.getGroupAdapters().forEach(a -> a.removeExternalGroupMember(a.getExternalGroup(player), player));
     }
 
     @Override
@@ -662,6 +667,8 @@ public class DGroup implements PlayerGroup {
         }
 
         plugin.getGlobalProtectionCache().updateGroupSigns(this);
+
+        plugin.getGroupAdapters().forEach(a -> a.deleteCorrespondingGroup(this));
     }
 
     public boolean startGame(Game game) {

core/src/main/java/de/erethon/dungeonsxl/player/groupadapter/PartiesAdapter.java

@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2012-2020 Frank Baumann
+ *
+ * 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 de.erethon.dungeonsxl.player.groupadapter;
+
+import com.alessiodp.parties.api.Parties;
+import com.alessiodp.parties.api.events.bukkit.party.BukkitPartiesPartyPostCreateEvent;
+import com.alessiodp.parties.api.events.bukkit.party.BukkitPartiesPartyPreDeleteEvent;
+import com.alessiodp.parties.api.events.bukkit.party.BukkitPartiesPartyRenameEvent;
+import com.alessiodp.parties.api.events.bukkit.player.BukkitPartiesPlayerPostJoinEvent;
+import com.alessiodp.parties.api.events.bukkit.player.BukkitPartiesPlayerPostLeaveEvent;
+import com.alessiodp.parties.api.interfaces.PartiesAPI;
+import com.alessiodp.parties.api.interfaces.Party;
+import com.alessiodp.parties.api.interfaces.PartyPlayer;
+import de.erethon.commons.chat.MessageUtil;
+import de.erethon.dungeonsxl.api.DungeonsAPI;
+import de.erethon.dungeonsxl.api.player.GroupAdapter;
+import de.erethon.dungeonsxl.api.player.PlayerGroup;
+import de.erethon.dungeonsxl.config.DMessage;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.UUID;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.scheduler.BukkitRunnable;
+
+/**
+ * This class may be used as a reference for implementations of the GroupAdapter API.
+ *
+ * @author Daniel Saukel
+ */
+public class PartiesAdapter extends GroupAdapter<Party> implements Listener {
+
+    private PartiesAPI partiesAPI;
+
+    public PartiesAdapter(DungeonsAPI api) {
+        super(api, Philosophy.PERSISTENT);
+        Bukkit.getPluginManager().registerEvents(this, api);
+        partiesAPI = Parties.getApi();
+    }
+
+    @Override
+    public Party createExternalGroup(PlayerGroup dGroup) {
+        if (!partiesAPI.createParty(dGroup.getRawName(), partiesAPI.getPartyPlayer(dGroup.getLeader().getUniqueId()))) {
+            return null;
+        }
+        Party eGroup = partiesAPI.getParty(dGroup.getRawName());
+        groups.put(dGroup, new ExternalGroupData<>(eGroup, true));
+        return eGroup;
+    }
+
+    @Override
+    public PlayerGroup createDungeonGroup(Party eGroup) {
+        PlayerGroup dGroup = dxl.createGroup(Bukkit.getPlayer(eGroup.getLeader()), eGroup.getName());
+        eGroup.getMembers().forEach(uuid -> dGroup.addPlayer(Bukkit.getPlayer(uuid), false));
+        groups.put(dGroup, new ExternalGroupData<>(eGroup, false));
+        return dGroup;
+    }
+
+    @Override
+    public Party getExternalGroup(Player member) {
+        PartyPlayer pPlayer = getPartyPlayer(member);
+        if (pPlayer == null) {
+            return null;
+        }
+        return partiesAPI.getParty(pPlayer.getPartyName());
+    }
+
+    @Override
+    public boolean isExternalGroupMember(Party eGroup, Player player) {
+        if (eGroup == null) {
+            return false;
+        }
+        return eGroup.getMembers().contains(player.getUniqueId());
+    }
+
+    @Override
+    public boolean addExternalGroupMember(Party eGroup, Player member) {
+        return eGroup.addMember(getPartyPlayer(member));
+    }
+
+    @Override
+    public boolean removeExternalGroupMember(Party eGroup, Player member) {
+        PartyPlayer pPlayer = getPartyPlayer(member);
+        if (pPlayer == null) {
+            return false;
+        }
+        if (eGroup == null) {
+            return false;
+        }
+        eGroup.removeMember(pPlayer);
+        if (eGroup.getMembers().isEmpty()) {
+            eGroup.delete();
+        }
+        return true;
+    }
+
+    @Override
+    public boolean deleteCorrespondingGroup(PlayerGroup dGroup) {
+        ExternalGroupData<Party> data = groups.get(dGroup);
+        if (data == null || !data.isCreatedByDXL()) {
+            return false;
+        }
+        data.get().delete();
+        groups.remove(dGroup);
+        return true;
+    }
+
+    @Override
+    public boolean areSimilar(PlayerGroup dGroup, Party eGroup) {
+        if (dGroup == null || eGroup == null) {
+            return false;
+        }
+
+        Collection<UUID> members = new ArrayList<>(dGroup.getMembers().getUniqueIds());
+        for (UUID member : eGroup.getMembers()) {
+            if (!members.contains(member)) {
+                return false;
+            }
+            members.remove(member);
+        }
+        return members.isEmpty();
+    }
+
+    @EventHandler
+    public void onCreation(BukkitPartiesPartyPostCreateEvent event) {
+        // Event is called asynchronously
+        new BukkitRunnable() {
+            @Override
+            public void run() {
+                createDungeonGroup(event.getParty());
+            }
+        }.runTask(dxl);
+    }
+
+    @EventHandler
+    public void onDeletion(BukkitPartiesPartyPreDeleteEvent event) {
+        PlayerGroup dGroup = getDungeonGroup(event.getParty());
+        if (dGroup != null) {
+            groups.remove(dGroup); // This avoids circular deleting of groups
+            dGroup.delete();
+        }
+    }
+
+    @EventHandler
+    public void onRename(BukkitPartiesPartyRenameEvent event) {
+        PlayerGroup dGroup = getDungeonGroup(event.getParty());
+        if (dGroup != null) {
+            dGroup.delete();
+        }
+        if (dxl.getPlayerGroupCache().get(event.getNewPartyName()) != null) {
+            MessageUtil.sendMessage(getPlayer(event.getPartyPlayer()), DMessage.ERROR_NAME_IN_USE.getMessage(event.getNewPartyName()));
+            event.setCancelled(true);
+            return;
+        }
+        dGroup.setName(event.getNewPartyName());
+    }
+
+    @EventHandler
+    public void onJoin(BukkitPartiesPlayerPostJoinEvent event) {
+        new BukkitRunnable() {
+            @Override
+            public void run() {
+                syncJoin(getPlayer(event.getPartyPlayer()));
+            }
+        }.runTask(dxl);
+    }
+
+    @EventHandler
+    public void onLeave(BukkitPartiesPlayerPostLeaveEvent event) {
+        new BukkitRunnable() {
+            @Override
+            public void run() {
+                Player player = getPlayer(event.getPartyPlayer());
+                PlayerGroup group = dxl.getPlayerGroup(player);
+                if (group != null) {
+                    group.removePlayer(player);
+                }
+            }
+        }.runTask(dxl);
+    }
+
+    private Player getPlayer(PartyPlayer player) {
+        return Bukkit.getPlayer(player.getPlayerUUID());
+    }
+
+    private PartyPlayer getPartyPlayer(Player player) {
+        return partiesAPI.getPartyPlayer(player.getUniqueId());
+    }
+
+}

core/src/main/resources/plugin.yml

@@ -4,7 +4,7 @@ version: ${project.parent.version}${buildNo}
 authors: [Frank Baumann, Milan Albrecht, Tobias Schmitz, Daniel Saukel]
 description: ${project.parent.description}
 website: ${project.parent.url}
-softdepend: [CommandsXL, ItemsXL, Vault, Citizens, CustomMobs, InsaneMobs, MythicMobs, HolographicDisplays, LWC, PlaceholderAPI]
+softdepend: [CommandsXL, ItemsXL, Vault, Citizens, CustomMobs, InsaneMobs, MythicMobs, HolographicDisplays, LWC, PlaceholderAPI, Parties]
 commands:
   dungeonsxl:
     description: Reference command for DungeonsXL.