Extract plot modifications to external class

Core/src/main/java/com/plotsquared/core/command/Biome.java

@@ -67,7 +67,7 @@ public class Biome extends SetCommand {
             return false;
         }
         plot.addRunning();
-        plot.setBiome(biome, () -> {
+        plot.getPlotModificationManager().setBiome(biome, () -> {
             plot.removeRunning();
             player.sendMessage(
                     TranslatableCaption.of("biome.biome_set_to"),
@@ -78,8 +78,7 @@ public class Biome extends SetCommand {
     }
 
     @Override
-    public Collection<Command> tab(final PlotPlayer player, final String[] args,
+    public Collection<Command> tab(final PlotPlayer<?> player, final String[] args, final boolean space) {
-        final boolean space) {
         return SuggestionHelper.getNamespacedRegistrySuggestions(BiomeType.REGISTRY, args[0])
             .map(value -> value.toLowerCase(Locale.ENGLISH).replace("minecraft:", ""))
             .filter(value -> value.startsWith(args[0].toLowerCase(Locale.ENGLISH)))

Core/src/main/java/com/plotsquared/core/command/Claim.java

@@ -187,7 +187,7 @@ public class Claim extends SubCommand {
                                     Template.of("value", "Auto merge on claim")
                             );
                         } else {
-                            plot.autoMerge(mergeEvent.getDir(), mergeEvent.getMax(), player.getUUID(), true);
+                            plot.getPlotModificationManager().autoMerge(mergeEvent.getDir(), mergeEvent.getMax(), player.getUUID(), true);
                         }
                     }
                     return null;

Core/src/main/java/com/plotsquared/core/command/Clear.java

@@ -92,8 +92,8 @@ public class Clear extends Command {
         confirm.run(this, () -> {
             BackupManager.backup(player, plot, () -> {
                 final long start = System.currentTimeMillis();
-                boolean result = plot.clear(true, false, () -> {
+                boolean result = plot.getPlotModificationManager().clear(true, false, () -> {
-                    plot.unlink();
+                    plot.getPlotModificationManager().unlink();
                     TaskManager.runTask(() -> {
                         plot.removeRunning();
                         // If the state changes, then mark it as no longer done

Core/src/main/java/com/plotsquared/core/command/Condense.java

@@ -179,7 +179,7 @@ public class Condense extends SubCommand {
                             i++;
                             final AtomicBoolean result = new AtomicBoolean(false);
                             try {
-                                result.set(origin.move(possible, () -> {
+                                result.set(origin.getPlotModificationManager().move(possible, () -> {
                                     if (result.get()) {
                                         player.sendMessage(
                                                 TranslatableCaption.of("condense.moving"),

Core/src/main/java/com/plotsquared/core/command/Copy.java

@@ -77,11 +77,15 @@ public class Copy extends SubCommand {
             player.sendMessage(TranslatableCaption.of("errors.plotworld_incompatible"));
             return false;
         }
-        if (plot1.copy(plot2, () -> player.sendMessage(TranslatableCaption.of("move.copy_success")))) {
+
-            return true;
+        plot1.getPlotModificationManager().copy(plot2).thenAccept(result -> {
+            if (result) {
+                player.sendMessage(TranslatableCaption.of("move.copy_success"));
             } else {
                 player.sendMessage(TranslatableCaption.of("move.requires_unowned"));
-            return false;
             }
+        });
+
+        return true;
     }
 }

Core/src/main/java/com/plotsquared/core/command/Delete.java

@@ -99,7 +99,7 @@ public class Delete extends SubCommand {
                 return;
             }
             final long start = System.currentTimeMillis();
-            boolean result = plot.deletePlot(() -> {
+            boolean result = plot.getPlotModificationManager().deletePlot(() -> {
                 plot.removeRunning();
                 if ((this.econHandler != null) && plotArea.useEconomy()) {
                     Expression<Double> valueExr = plotArea.getPrices().get("sell");

Core/src/main/java/com/plotsquared/core/command/Merge.java

@@ -42,7 +42,6 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.Expression;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.StringMan;
-import net.kyori.adventure.text.minimessage.MiniMessage;
 import net.kyori.adventure.text.minimessage.Template;
 
 import javax.annotation.Nonnull;
@@ -182,7 +181,7 @@ public class Merge extends SubCommand {
                     );
                 return true;
             }
-            if (plot.autoMerge(Direction.ALL, maxSize, uuid, terrain)) {
+            if (plot.getPlotModificationManager().autoMerge(Direction.ALL, maxSize, uuid, terrain)) {
                 if (this.econHandler != null && plotArea.useEconomy() && price > 0d) {
                     this.econHandler.withdrawMoney(player, price);
                     player.sendMessage(
@@ -226,7 +225,7 @@ public class Merge extends SubCommand {
             );
             return true;
         }
-        if (plot.autoMerge(direction, maxSize - size, uuid, terrain)) {
+        if (plot.getPlotModificationManager().autoMerge(direction, maxSize - size, uuid, terrain)) {
             if (this.econHandler != null && plotArea.useEconomy() && price > 0d) {
                 this.econHandler.withdrawMoney(player, price);
                 player.sendMessage(
@@ -239,7 +238,7 @@ public class Merge extends SubCommand {
         }
         Plot adjacent = plot.getRelative(direction);
         if (adjacent == null || !adjacent.hasOwner() || adjacent
-            .getMerged((direction.getIndex() + 2) % 4) || (!force && adjacent.isOwner(uuid))) {
+            .isMerged((direction.getIndex() + 2) % 4) || (!force && adjacent.isOwner(uuid))) {
             player.sendMessage(TranslatableCaption.of("merge.no_available_automerge"));
             return false;
         }
@@ -261,8 +260,8 @@ public class Merge extends SubCommand {
             final Direction dir = direction;
             Runnable run = () -> {
                 accepter.sendMessage(TranslatableCaption.of("merge.merge_accepted"));
-                plot.autoMerge(dir, maxSize - size, owner, terrain);
+                plot.getPlotModificationManager().autoMerge(dir, maxSize - size, owner, terrain);
-                PlotPlayer plotPlayer = PlotSquared.platform().getPlayerManager().getPlayerIfExists(player.getUUID());
+                PlotPlayer<?> plotPlayer = PlotSquared.platform().getPlayerManager().getPlayerIfExists(player.getUUID());
                 if (plotPlayer == null) {
                     accepter.sendMessage(TranslatableCaption.of("merge.merge_not_valid"));
                     return;

Core/src/main/java/com/plotsquared/core/command/Move.java

@@ -107,7 +107,7 @@ public class Move extends SubCommand {
             return CompletableFuture.completedFuture(false);
         }
 
-        return plot1.move(plot2, () -> {
+        return plot1.getPlotModificationManager().move(plot2, () -> {
         }, false).thenApply(result -> {
             if (result) {
                 player.sendMessage(TranslatableCaption.of("move.move_success"));

Core/src/main/java/com/plotsquared/core/command/Owner.java

@@ -106,11 +106,11 @@ public class Owner extends SetCommand {
                     Template.of("value", "Unlink on owner change"));
                     return;
                 }
-                plot.unlinkPlot(unlinkEvent.isCreateRoad(), unlinkEvent.isCreateRoad());
+                plot.getPlotModificationManager().unlinkPlot(unlinkEvent.isCreateRoad(), unlinkEvent.isCreateRoad());
                 Set<Plot> connected = plot.getConnectedPlots();
                 for (Plot current : connected) {
                     current.unclaim();
-                    current.removeSign();
+                    current.getPlotModificationManager().removeSign();
                 }
                 player.sendMessage(TranslatableCaption.of("owner.set_owner"));
                 return;
@@ -148,7 +148,7 @@ public class Owner extends SetCommand {
                     if (plot.setOwner(finalUUID, player)) {
                         if (removeDenied)
                             plot.removeDenied(finalUUID);
-                        plot.setSign(finalName);
+                        plot.getPlotModificationManager().setSign(finalName);
                         player.sendMessage(TranslatableCaption.of("owner.set_owner"));
                         if (other != null) {
                             other.sendMessage(

Core/src/main/java/com/plotsquared/core/command/Purge.java

@@ -215,13 +215,13 @@ public class Purge extends SubCommand {
                             try {
                                 ids.add(plot.temp);
                                 if (finalClear) {
-                                    plot.clear(false, true, () -> {
+                                    plot.getPlotModificationManager().clear(false, true, () -> {
                                         if (Settings.DEBUG) {
                                             logger.info("Plot {} cleared by purge", plot.getId());
                                         }
                                     });
                                 } else {
-                                    plot.removeSign();
+                                    plot.getPlotModificationManager().removeSign();
                                 }
                                 plot.getArea().removePlot(plot.getId());
                                 for (PlotPlayer<?> pp : plot.getPlayersInPlot()) {

Core/src/main/java/com/plotsquared/core/command/Set.java

@@ -154,8 +154,8 @@ public class Set extends SubCommand {
                         BackupManager.backup(player, plot, () -> {
                             plot.addRunning();
                             QueueCoordinator queue = plotArea.getQueue();
-                            for (Plot current : plot.getConnectedPlots()) {
+                            for (final Plot current : plot.getConnectedPlots()) {
-                                current.setComponent(component, pattern, queue);
+                                current.getPlotModificationManager().setComponent(component, pattern, queue);
                             }
                             queue.setCompleteTask(plot::removeRunning);
                             queue.enqueue();

Core/src/main/java/com/plotsquared/core/command/Swap.java

@@ -85,7 +85,7 @@ public class Swap extends SubCommand {
             return CompletableFuture.completedFuture(false);
         }
 
-        return plot1.move(plot2, () -> {
+        return plot1.getPlotModificationManager().move(plot2, () -> {
         }, true).thenApply(result -> {
             if (result) {
                 player.sendMessage(TranslatableCaption.of("swap.swap_success"));

Core/src/main/java/com/plotsquared/core/command/Unlink.java

@@ -96,7 +96,7 @@ public class Unlink extends SubCommand {
             player.sendMessage(TranslatableCaption.of("permission.no_plot_perms"));
         }
         Runnable runnable = () -> {
-            if (!plot.unlinkPlot(createRoad, createRoad)) {
+            if (!plot.getPlotModificationManager().unlinkPlot(createRoad, createRoad)) {
                 player.sendMessage(TranslatableCaption.of("merge.unmerge_cancelled"));
                 return;
             }

Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java

@@ -194,7 +194,7 @@ public class ComponentPresetManager {
                     plot.addRunning();
                     QueueCoordinator queue = plot.getArea().getQueue();
                     for (Plot current : plot.getConnectedPlots()) {
-                        current.setComponent(componentPreset.getComponent().name(), pattern, queue);
+                        current.getPlotModificationManager().setComponent(componentPreset.getComponent().name(), pattern, queue);
                     }
                     queue.setCompleteTask(plot::removeRunning);
                     queue.enqueue();

Core/src/main/java/com/plotsquared/core/generator/ClassicPlotManager.java

@@ -227,7 +227,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         }
 
         int maxY = classicPlotWorld.getPlotManager().getWorldHeight();
-        if (!plot.getMerged(Direction.NORTH)) {
+        if (!plot.isMerged(Direction.NORTH)) {
             int z = bottom.getZ();
             for (int x = bottom.getX(); x <= top.getX(); x++) {
                 for (int y = classicPlotWorld.PLOT_HEIGHT; y <= maxY; y++) {
@@ -235,7 +235,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                 }
             }
         }
-        if (!plot.getMerged(Direction.WEST)) {
+        if (!plot.isMerged(Direction.WEST)) {
             int x = bottom.getX();
             for (int z = bottom.getZ(); z <= top.getZ(); z++) {
                 for (int y = classicPlotWorld.PLOT_HEIGHT; y <= maxY; y++) {
@@ -244,7 +244,7 @@ public class ClassicPlotManager extends SquarePlotManager {
             }
         }
 
-        if (!plot.getMerged(Direction.SOUTH)) {
+        if (!plot.isMerged(Direction.SOUTH)) {
             int z = top.getZ();
             for (int x = bottom.getX(); x <= top.getX(); x++) {
                 for (int y = classicPlotWorld.PLOT_HEIGHT; y <= maxY; y++) {
@@ -252,7 +252,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                 }
             }
         }
-        if (!plot.getMerged(Direction.EAST)) {
+        if (!plot.isMerged(Direction.EAST)) {
             int x = top.getX();
             for (int z = bottom.getZ(); z <= top.getZ(); z++) {
                 for (int y = classicPlotWorld.PLOT_HEIGHT; y <= maxY; y++) {
@@ -293,7 +293,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         if (plot == null) {
             return false;
         }
-        Location bot = plot.getExtendedBottomAbs().subtract(plot.getMerged(Direction.WEST) ? 0 : 1, 0, plot.getMerged(Direction.NORTH) ? 0 : 1);
+        Location bot = plot.getExtendedBottomAbs().subtract(plot.isMerged(Direction.WEST) ? 0 : 1, 0, plot.isMerged(Direction.NORTH) ? 0 : 1);
         Location top = plot.getExtendedTopAbs().add(1, 0, 1);
 
         boolean enqueue = false;
@@ -302,7 +302,7 @@ public class ClassicPlotManager extends SquarePlotManager {
             enqueue = true;
         }
 
-        if (!plot.getMerged(Direction.NORTH)) {
+        if (!plot.isMerged(Direction.NORTH)) {
             int z = bot.getZ();
             for (int x = bot.getX(); x < top.getX(); x++) {
                 for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
@@ -310,7 +310,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                 }
             }
         }
-        if (!plot.getMerged(Direction.WEST)) {
+        if (!plot.isMerged(Direction.WEST)) {
             int x = bot.getX();
             for (int z = bot.getZ(); z < top.getZ(); z++) {
                 for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
@@ -318,17 +318,17 @@ public class ClassicPlotManager extends SquarePlotManager {
                 }
             }
         }
-        if (!plot.getMerged(Direction.SOUTH)) {
+        if (!plot.isMerged(Direction.SOUTH)) {
             int z = top.getZ();
-            for (int x = bot.getX(); x < top.getX() + (plot.getMerged(Direction.EAST) ? 0 : 1); x++) {
+            for (int x = bot.getX(); x < top.getX() + (plot.isMerged(Direction.EAST) ? 0 : 1); x++) {
                 for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
                     queue.setBlock(x, y, z, blocks);
                 }
             }
         }
-        if (!plot.getMerged(Direction.EAST)) {
+        if (!plot.isMerged(Direction.EAST)) {
             int x = top.getX();
-            for (int z = bot.getZ(); z < top.getZ() + (plot.getMerged(Direction.SOUTH) ? 0 : 1); z++) {
+            for (int z = bot.getZ(); z < top.getZ() + (plot.isMerged(Direction.SOUTH) ? 0 : 1); z++) {
                 for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
                     queue.setBlock(x, y, z, blocks);
                 }
@@ -360,7 +360,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         if (plot == null) {
             return false;
         }
-        Location bot = plot.getExtendedBottomAbs().subtract(plot.getMerged(Direction.WEST) ? 0 : 1, 0, plot.getMerged(Direction.NORTH) ? 0 : 1);
+        Location bot = plot.getExtendedBottomAbs().subtract(plot.isMerged(Direction.WEST) ? 0 : 1, 0, plot.isMerged(Direction.NORTH) ? 0 : 1);
         Location top = plot.getExtendedTopAbs().add(1, 0, 1);
 
         boolean enqueue = false;
@@ -370,27 +370,27 @@ public class ClassicPlotManager extends SquarePlotManager {
         }
 
         int y = classicPlotWorld.WALL_HEIGHT + 1;
-        if (!plot.getMerged(Direction.NORTH)) {
+        if (!plot.isMerged(Direction.NORTH)) {
             int z = bot.getZ();
             for (int x = bot.getX(); x < top.getX(); x++) {
                 queue.setBlock(x, y, z, blocks);
             }
         }
-        if (!plot.getMerged(Direction.WEST)) {
+        if (!plot.isMerged(Direction.WEST)) {
             int x = bot.getX();
             for (int z = bot.getZ(); z < top.getZ(); z++) {
                 queue.setBlock(x, y, z, blocks);
             }
         }
-        if (!plot.getMerged(Direction.SOUTH)) {
+        if (!plot.isMerged(Direction.SOUTH)) {
             int z = top.getZ();
-            for (int x = bot.getX(); x < top.getX() + (plot.getMerged(Direction.EAST) ? 0 : 1); x++) {
+            for (int x = bot.getX(); x < top.getX() + (plot.isMerged(Direction.EAST) ? 0 : 1); x++) {
                 queue.setBlock(x, y, z, blocks);
             }
         }
-        if (!plot.getMerged(Direction.EAST)) {
+        if (!plot.isMerged(Direction.EAST)) {
             int x = top.getX();
-            for (int z = bot.getZ(); z < top.getZ() + (plot.getMerged(Direction.SOUTH) ? 0 : 1); z++) {
+            for (int z = bot.getZ(); z < top.getZ() + (plot.isMerged(Direction.SOUTH) ? 0 : 1); z++) {
                 queue.setBlock(x, y, z, blocks);
             }
         }

Core/src/main/java/com/plotsquared/core/generator/SquarePlotManager.java

@@ -210,28 +210,28 @@ public abstract class SquarePlotManager extends GridPlotManager {
             switch (hash) {
                 case 8:
                     // north
-                    return plot.getMerged(Direction.NORTH) ? id : null;
+                    return plot.isMerged(Direction.NORTH) ? id : null;
                 case 4:
                     // east
-                    return plot.getMerged(Direction.EAST) ? id : null;
+                    return plot.isMerged(Direction.EAST) ? id : null;
                 case 2:
                     // south
-                    return plot.getMerged(Direction.SOUTH) ? id : null;
+                    return plot.isMerged(Direction.SOUTH) ? id : null;
                 case 1:
                     // west
-                    return plot.getMerged(Direction.WEST) ? id : null;
+                    return plot.isMerged(Direction.WEST) ? id : null;
                 case 12:
                     // northeast
-                    return plot.getMerged(Direction.NORTHEAST) ? id : null;
+                    return plot.isMerged(Direction.NORTHEAST) ? id : null;
                 case 6:
                     // southeast
-                    return plot.getMerged(Direction.SOUTHEAST) ? id : null;
+                    return plot.isMerged(Direction.SOUTHEAST) ? id : null;
                 case 3:
                     // southwest
-                    return plot.getMerged(Direction.SOUTHWEST) ? id : null;
+                    return plot.isMerged(Direction.SOUTHWEST) ? id : null;
                 case 9:
                     // northwest
-                    return plot.getMerged(Direction.NORTHWEST) ? id : null;
+                    return plot.isMerged(Direction.NORTHWEST) ? id : null;
             }
         } catch (Exception ignored) {
             logger.error("Invalid plot / road width in settings.yml for world: {}", squarePlotWorld.getWorldName());

Core/src/main/java/com/plotsquared/core/player/PlotPlayer.java

@@ -262,15 +262,6 @@ public abstract class PlotPlayer<P> implements CommandCaller, OfflinePlotPlayer,
         return Permissions.hasPermissionRange(this, "plots.plot", Settings.Limit.MAX_PLOTS);
     }
 
-    /**
-     * Get the total number of allowed clusters
-     *
-     * @return number of allowed clusters within the scope (globally, or in the player's current world as defined in the settings.yml)
-     */
-    public int getAllowedClusters() {
-        return Permissions.hasPermissionRange(this, "plots.cluster", Settings.Limit.MAX_PLOTS);
-    }
-
     /**
      * Get the number of plots this player owns.
      *
@@ -588,7 +579,7 @@ public abstract class PlotPlayer<P> implements CommandCaller, OfflinePlotPlayer,
         }
         if (Settings.Enabled_Components.BAN_DELETER && isBanned()) {
             for (Plot owned : getPlots()) {
-                owned.deletePlot(null);
+                owned.getPlotModificationManager().deletePlot(null);
                 if (Settings.DEBUG) {
                     logger.info("Plot {} was deleted + cleared due to {} getting banned", owned.getId(), getName());
                 }

Core/src/main/java/com/plotsquared/core/plot/PlotArea.java

@@ -964,7 +964,7 @@ public abstract class PlotArea {
                 members.addAll(plot.getMembers());
                 denied.addAll(plot.getDenied());
                 if (removeRoads) {
-                    plot.removeSign();
+                    plot.getPlotModificationManager().removeSign();
                 }
             }
         }
@@ -985,19 +985,19 @@ public abstract class PlotArea {
                 Plot plot2;
                 if (lx) {
                     if (ly) {
-                        if (!plot.getMerged(Direction.EAST) || !plot.getMerged(Direction.SOUTH)) {
+                        if (!plot.isMerged(Direction.EAST) || !plot.isMerged(Direction.SOUTH)) {
                             if (removeRoads) {
-                                plot.removeRoadSouthEast(queue);
+                                plot.getPlotModificationManager().removeRoadSouthEast(queue);
                             }
                         }
                     }
-                    if (!plot.getMerged(Direction.EAST)) {
+                    if (!plot.isMerged(Direction.EAST)) {
                         plot2 = plot.getRelative(1, 0);
                         plot.mergePlot(plot2, removeRoads, queue);
                     }
                 }
                 if (ly) {
-                    if (!plot.getMerged(Direction.SOUTH)) {
+                    if (!plot.isMerged(Direction.SOUTH)) {
                         plot2 = plot.getRelative(0, 1);
                         plot.mergePlot(plot2, removeRoads, queue);
                     }

Core/src/main/java/com/plotsquared/core/plot/PlotModificationManager.java

@@ -0,0 +1,819 @@
+package com.plotsquared.core.plot;
+
+import com.plotsquared.core.PlotSquared;
+import com.plotsquared.core.configuration.ConfigurationUtil;
+import com.plotsquared.core.configuration.caption.Caption;
+import com.plotsquared.core.configuration.caption.TranslatableCaption;
+import com.plotsquared.core.database.DBFunc;
+import com.plotsquared.core.events.PlotComponentSetEvent;
+import com.plotsquared.core.events.PlotMergeEvent;
+import com.plotsquared.core.events.PlotUnlinkEvent;
+import com.plotsquared.core.events.Result;
+import com.plotsquared.core.generator.SquarePlotWorld;
+import com.plotsquared.core.location.Direction;
+import com.plotsquared.core.location.Location;
+import com.plotsquared.core.player.PlotPlayer;
+import com.plotsquared.core.plot.flag.PlotFlag;
+import com.plotsquared.core.queue.QueueCoordinator;
+import com.plotsquared.core.util.PlayerManager;
+import com.plotsquared.core.util.task.TaskManager;
+import com.plotsquared.core.util.task.TaskTime;
+import com.sk89q.worldedit.function.pattern.Pattern;
+import com.sk89q.worldedit.math.BlockVector2;
+import com.sk89q.worldedit.regions.CuboidRegion;
+import com.sk89q.worldedit.world.biome.BiomeType;
+import com.sk89q.worldedit.world.block.BlockTypes;
+import net.kyori.adventure.text.minimessage.Template;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.stream.Collectors;
+
+import static com.plotsquared.core.plot.Plot.MAX_HEIGHT;
+
+/**
+ * Manager that handles {@link Plot} modifications
+ */
+public final class PlotModificationManager {
+
+    private static final Logger logger = LoggerFactory.getLogger("P2/" + PlotModificationManager.class.getSimpleName());
+
+    private final Plot plot;
+
+    PlotModificationManager(@Nonnull final Plot plot) {
+        this.plot = plot;
+    }
+
+
+    /**
+     * Copy a plot to a location, both physically and the settings
+     *
+     * @param destination destination plot
+     * @return Future that completes with {@code true} if the copy was successful, else {@code false}
+     */
+    public CompletableFuture<Boolean> copy(@Nonnull final Plot destination) {
+        final CompletableFuture<Boolean> future = new CompletableFuture<>();
+        final PlotId offset = PlotId.of(destination.getId().getX() - this.plot.getId().getX(), destination.getId().getY() - this.plot.getId().getY());
+        final Location db = destination.getBottomAbs();
+        final Location ob = this.plot.getBottomAbs();
+        final int offsetX = db.getX() - ob.getX();
+        final int offsetZ = db.getZ() - ob.getZ();
+        if (!this.plot.hasOwner()) {
+            TaskManager.runTaskLater(() -> future.complete(false), TaskTime.ticks(1L));
+            return future;
+        }
+        final Set<Plot> plots = this.plot.getConnectedPlots();
+        for (final Plot plot : plots) {
+            final Plot other = plot.getRelative(destination.getArea(), offset.getX(), offset.getY());
+            if (other.hasOwner()) {
+                TaskManager.runTaskLater(() -> future.complete(false), TaskTime.ticks(1L));
+                return future;
+            }
+        }
+        // world border
+        destination.updateWorldBorder();
+        // copy data
+        for (final Plot plot : plots) {
+            final Plot other = plot.getRelative(destination.getArea(), offset.getX(), offset.getY());
+            other.getPlotModificationManager().create(plot.getOwner(), false);
+            if (!plot.getFlagContainer().getFlagMap().isEmpty()) {
+                final Collection<PlotFlag<?, ?>> existingFlags = other.getFlags();
+                other.getFlagContainer().clearLocal();
+                other.getFlagContainer().addAll(plot.getFlagContainer().getFlagMap().values());
+                // Update the database
+                for (final PlotFlag<?, ?> flag : existingFlags) {
+                    final PlotFlag<?, ?> newFlag = other.getFlagContainer().queryLocal(flag.getClass());
+                    if (other.getFlagContainer().queryLocal(flag.getClass()) == null) {
+                        DBFunc.removeFlag(other, flag);
+                    } else {
+                        DBFunc.setFlag(other, newFlag);
+                    }
+                }
+            }
+            if (plot.isMerged()) {
+                other.setMerged(plot.getMerged());
+            }
+            if (plot.members != null && !plot.members.isEmpty()) {
+                other.members = plot.members;
+                for (UUID member : plot.members) {
+                    DBFunc.setMember(other, member);
+                }
+            }
+            if (plot.trusted != null && !plot.trusted.isEmpty()) {
+                other.trusted = plot.trusted;
+                for (UUID trusted : plot.trusted) {
+                    DBFunc.setTrusted(other, trusted);
+                }
+            }
+            if (plot.denied != null && !plot.denied.isEmpty()) {
+                other.denied = plot.denied;
+                for (UUID denied : plot.denied) {
+                    DBFunc.setDenied(other, denied);
+                }
+            }
+        }
+        // copy terrain
+        final ArrayDeque<CuboidRegion> regions = new ArrayDeque<>(this.plot.getRegions());
+        final Runnable run = new Runnable() {
+            @Override public void run() {
+                if (regions.isEmpty()) {
+                    final QueueCoordinator queue = plot.getArea().getQueue();
+                    for (final Plot current : plot.getConnectedPlots()) {
+                        destination.getManager().claimPlot(current, queue);
+                    }
+                    if (queue.size() > 0) {
+                        queue.enqueue();
+                    }
+                    destination.getPlotModificationManager().setSign();
+                    future.complete(true);
+                    return;
+                }
+                CuboidRegion region = regions.poll();
+                Location[] corners = plot.getCorners(plot.getWorldName(), region);
+                Location pos1 = corners[0];
+                Location pos2 = corners[1];
+                Location newPos = pos1.add(offsetX, 0, offsetZ).withWorld(destination.getWorldName());
+                PlotSquared.platform().getRegionManager().copyRegion(pos1, pos2, newPos, this);
+            }
+        };
+        run.run();
+        return future;
+    }
+
+    /**
+     * Clear the plot
+     *
+     * @param whenDone A runnable to execute when clearing finishes, or null
+     * @see #clear(boolean, boolean, Runnable)
+     * @see #deletePlot(Runnable) to clear and delete a plot
+     */
+    public void clear(@Nullable final Runnable whenDone) {
+        this.clear(false, false, whenDone);
+    }
+
+    /**
+     * Clear the plot
+     *
+     * @param checkRunning Whether or not already executing tasks should be checked
+     * @param isDelete Whether or not the plot is being deleted
+     * @param whenDone A runnable to execute when clearing finishes, or null
+     * @see #deletePlot(Runnable) to clear and delete a plot
+     */
+    public boolean clear(final boolean checkRunning, final boolean isDelete, @Nullable final Runnable whenDone) {
+        if (checkRunning && this.plot.getRunning() != 0) {
+            return false;
+        }
+        final Set<CuboidRegion> regions = this.plot.getRegions();
+        final Set<Plot> plots = this.plot.getConnectedPlots();
+        final ArrayDeque<Plot> queue = new ArrayDeque<>(plots);
+        if (isDelete) {
+            this.removeSign();
+        }
+        PlotUnlinkEvent event = PlotSquared.get().getEventDispatcher()
+            .callUnlink(this.plot.getArea(), this.plot, true, !isDelete, isDelete ? PlotUnlinkEvent.REASON.DELETE : PlotUnlinkEvent.REASON.CLEAR);
+        if (event.getEventResult() != Result.DENY) {
+            this.unlinkPlot(event.isCreateRoad(), event.isCreateSign());
+        }
+        final PlotManager manager = this.plot.getArea().getPlotManager();
+        Runnable run = new Runnable() {
+            @Override public void run() {
+                if (queue.isEmpty()) {
+                    Runnable run = () -> {
+                        for (CuboidRegion region : regions) {
+                            Location[] corners = plot.getCorners(plot.getWorldName(), region);
+                            PlotSquared.platform().getRegionManager().clearAllEntities(corners[0], corners[1]);
+                        }
+                        TaskManager.runTask(whenDone);
+                    };
+                    QueueCoordinator queue = plot.getArea().getQueue();
+                    for (Plot current : plots) {
+                        if (isDelete || !current.hasOwner()) {
+                            manager.unClaimPlot(current, null, queue);
+                        } else {
+                            manager.claimPlot(current, queue);
+                        }
+                    }
+                    if (queue.size() > 0) {
+                        queue.enqueue();
+                    }
+                    TaskManager.runTask(run);
+                    return;
+                }
+                Plot current = queue.poll();
+                if (plot.getArea().getTerrain() != PlotAreaTerrainType.NONE) {
+                    try {
+                        PlotSquared.platform().getRegionManager().regenerateRegion(current.getBottomAbs(), current.getTopAbs(), false, this);
+                    } catch (UnsupportedOperationException exception) {
+                        exception.printStackTrace();
+                        return;
+                    }
+                    return;
+                }
+                manager.clearPlot(current, this, null);
+            }
+        };
+        run.run();
+        return true;
+    }
+
+    /**
+     * Sets the biome for a plot asynchronously.
+     *
+     * @param biome    The biome e.g. "forest"
+     * @param whenDone The task to run when finished, or null
+     */
+    public void setBiome(@Nullable final BiomeType biome, @Nonnull final Runnable whenDone) {
+        final ArrayDeque<CuboidRegion> regions = new ArrayDeque<>(this.plot.getRegions());
+        final int extendBiome;
+        if (this.plot.getArea() instanceof SquarePlotWorld) {
+            extendBiome = (((SquarePlotWorld) this.plot.getArea()).ROAD_WIDTH > 0) ? 1 : 0;
+        } else {
+            extendBiome = 0;
+        }
+        Runnable run = new Runnable() {
+            @Override public void run() {
+                if (regions.isEmpty()) {
+                    TaskManager.runTask(whenDone);
+                    return;
+                }
+                CuboidRegion region = regions.poll();
+                PlotSquared.platform().getRegionManager().setBiome(region, extendBiome, biome, plot.getWorldName(), this);
+            }
+        };
+        run.run();
+    }
+
+    /**
+     * Unlink the plot and all connected plots.
+     *
+     * @param createRoad whether to recreate road
+     * @param createSign whether to recreate signs
+     * @return success/!cancelled
+     */
+    public boolean unlinkPlot(final boolean createRoad, final boolean createSign) {
+        if (!this.plot.isMerged()) {
+            return false;
+        }
+        final Set<Plot> plots = this.plot.getConnectedPlots();
+        ArrayList<PlotId> ids = new ArrayList<>(plots.size());
+        for (Plot current : plots) {
+            current.setHome(null);
+            ids.add(current.getId());
+        }
+        this.plot.clearRatings();
+        QueueCoordinator queue = null;
+        if (createSign) {
+            this.removeSign();
+            queue = this.plot.getArea().getQueue();
+        }
+        PlotManager manager = this.plot.getArea().getPlotManager();
+        if (createRoad) {
+            manager.startPlotUnlink(ids, queue);
+        }
+        if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL && createRoad) {
+            for (Plot current : plots) {
+                if (current.isMerged(Direction.EAST)) {
+                    manager.createRoadEast(current, queue);
+                    if (current.isMerged(Direction.SOUTH)) {
+                        manager.createRoadSouth(current, queue);
+                        if (current.isMerged(Direction.SOUTHEAST)) {
+                            manager.createRoadSouthEast(current, queue);
+                        }
+                    }
+                }
+                if (current.isMerged(Direction.SOUTH)) {
+                    manager.createRoadSouth(current, queue);
+                }
+            }
+        }
+        for (Plot current : plots) {
+            boolean[] merged = new boolean[] {false, false, false, false};
+            current.setMerged(merged);
+        }
+        if (createSign) {
+            queue.setCompleteTask(() -> TaskManager.runTaskAsync(() -> {
+                for (Plot current : plots) {
+                    current.getPlotModificationManager().setSign(PlayerManager.getName(current.getOwnerAbs()));
+                }
+            }));
+        }
+        if (createRoad) {
+            manager.finishPlotUnlink(ids, queue);
+        }
+        return true;
+    }
+
+    /**
+     * Sets the sign for a plot to a specific name
+     *
+     * @param name name
+     */
+    public void setSign(@Nonnull final String name) {
+        if (!this.plot.isLoaded()) {
+            return;
+        }
+        PlotManager manager = this.plot.getArea().getPlotManager();
+        if (this.plot.getArea().allowSigns()) {
+            Location location = manager.getSignLoc(this.plot);
+            String id = this.plot.getId().toString();
+            Caption[] lines =
+                new Caption[] {TranslatableCaption.of("signs.owner_sign_line_1"),
+                    TranslatableCaption.of("signs.owner_sign_line_2"),
+                    TranslatableCaption.of("signs.owner_sign_line_3"),
+                    TranslatableCaption.of("signs.owner_sign_line_4")};
+            PlotSquared.platform().getWorldUtil().setSign(location, lines, Template.of("id", id), Template.of("owner", name));
+        }
+    }
+
+    /**
+     * Resend all chunks inside the plot to nearby players<br>
+     * This should not need to be called
+     */
+    public void refreshChunks() {
+        final HashSet<BlockVector2> chunks = new HashSet<>();
+        for (final CuboidRegion region : this.plot.getRegions()) {
+            for (int x = region.getMinimumPoint().getX() >> 4; x <= region.getMaximumPoint().getX() >> 4; x++) {
+                for (int z = region.getMinimumPoint().getZ() >> 4; z <= region.getMaximumPoint().getZ() >> 4; z++) {
+                    if (chunks.add(BlockVector2.at(x, z))) {
+                        PlotSquared.platform().getWorldUtil().refreshChunk(x, z, this.plot.getWorldName());
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Remove the plot sign if it is set.
+     */
+    public void removeSign() {
+        PlotManager manager = this.plot.getArea().getPlotManager();
+        if (!this.plot.getArea().allowSigns()) {
+            return;
+        }
+        Location location = manager.getSignLoc(this.plot);
+        QueueCoordinator queue = PlotSquared.platform().getGlobalBlockQueue()
+            .getNewQueue(PlotSquared.platform().getWorldUtil().getWeWorld(this.plot.getWorldName()));
+        queue.setBlock(location.getX(), location.getY(), location.getZ(), BlockTypes.AIR.getDefaultState());
+        queue.enqueue();
+    }
+
+    /**
+     * Sets the plot sign if plot signs are enabled.
+     */
+    public void setSign() {
+        if (!this.plot.hasOwner()) {
+            this.setSign("unknown");
+            return;
+        }
+        PlotSquared.get().getImpromptuUUIDPipeline().getSingle(this.plot.getOwnerAbs(), (username, sign) -> this.setSign(username));
+    }
+
+    /**
+     * Register a plot and create it in the database<br>
+     * - The plot will not be created if the owner is null<br>
+     * - Any setting from before plot creation will not be saved until the server is stopped properly. i.e. Set any values/options after plot
+     * creation.
+     *
+     * @return true if plot was created successfully
+     */
+    public boolean create() {
+        return this.create(this.plot.getOwnerAbs(), true);
+    }
+
+    /**
+     * Register a plot and create it in the database<br>
+     * - The plot will not be created if the owner is null<br>
+     * - Any setting from before plot creation will not be saved until the server is stopped properly. i.e. Set any values/options after plot
+     * creation.
+     *
+     * @param uuid   the uuid of the plot owner
+     * @param notify notify
+     * @return {@code true} if plot was created successfully, else {@code false}
+     */
+    public boolean create(@Nonnull final UUID uuid, final boolean notify) {
+        this.plot.setOwnerAbs(uuid);
+        Plot existing = this.plot.getArea().getOwnedPlotAbs(this.plot.getId());
+        if (existing != null) {
+            throw new IllegalStateException("Plot already exists!");
+        }
+        if (notify) {
+            Integer meta = (Integer) this.plot.getArea().getMeta("worldBorder");
+            if (meta != null) {
+                this.plot.updateWorldBorder();
+            }
+        }
+        Plot.connected_cache = null;
+        Plot.regions_cache = null;
+        this.plot.getTrusted().clear();
+        this.plot.getMembers().clear();
+        this.plot.getDenied().clear();
+        this.plot.settings = new PlotSettings();
+        if (this.plot.getArea().addPlot(this.plot)) {
+            DBFunc.createPlotAndSettings(this.plot, () -> {
+                PlotArea plotworld = plot.getArea();
+                if (notify && plotworld.isAutoMerge()) {
+                    final PlotPlayer<?> player = PlotSquared.platform().getPlayerManager().getPlayerIfExists(uuid);
+
+                    PlotMergeEvent
+                        event = PlotSquared.get().getEventDispatcher().callMerge(this.plot, Direction.ALL, Integer.MAX_VALUE, player);
+
+                    if (event.getEventResult() == Result.DENY) {
+                        if (player != null) {
+                            player.sendMessage(TranslatableCaption.of("events.event_denied"),
+                                Template.of("value", "Auto merge on claim"));
+                        }
+                        return;
+                    }
+                    plot.getPlotModificationManager().autoMerge(event.getDir(), event.getMax(), uuid, true);
+                }
+            });
+            return true;
+        }
+        logger.info("Failed to add plot {} to plot area {}", this.plot.getId().toCommaSeparatedString(), this.plot.getArea().toString());
+        return false;
+    }
+
+    /**
+     * Remove the south road section of a plot<br>
+     * - Used when a plot is merged<br>
+     *
+     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
+     *              otherwise writes to the queue but does not enqueue.
+     */
+    public void removeRoadSouth(@Nullable final QueueCoordinator queue) {
+        if (this.plot.getArea().getType() != PlotAreaType.NORMAL && this.plot.getArea().getTerrain() == PlotAreaTerrainType.ROAD) {
+            Plot other = this.plot.getRelative(Direction.SOUTH);
+            Location bot = other.getBottomAbs();
+            Location top = this.plot.getTopAbs();
+            Location pos1 = Location.at(this.plot.getWorldName(), bot.getX(), 0, top.getZ());
+            Location pos2 = Location.at(this.plot.getWorldName(), top.getX(), MAX_HEIGHT, bot.getZ());
+            PlotSquared.platform().getRegionManager().regenerateRegion(pos1, pos2, true, null);
+        } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
+            this.plot.getManager().removeRoadSouth(this.plot, queue);
+        }
+    }
+
+    /**
+     * Auto merge a plot in a specific direction.
+     *
+     * @param dir         the direction to merge
+     * @param max         the max number of merges to do
+     * @param uuid        the UUID it is allowed to merge with
+     * @param removeRoads whether to remove roads
+     * @return {@code true} if a merge takes place, else {@code false}
+     */
+    public boolean autoMerge(@Nonnull final Direction dir, int max, @Nonnull final UUID uuid, final boolean removeRoads) {
+        //Ignore merging if there is no owner for the plot
+        if (!this.plot.hasOwner()) {
+            return false;
+        }
+        Set<Plot> connected = this.plot.getConnectedPlots();
+        HashSet<PlotId> merged = connected.stream().map(Plot::getId).collect(Collectors.toCollection(HashSet::new));
+        ArrayDeque<Plot> frontier = new ArrayDeque<>(connected);
+        Plot current;
+        boolean toReturn = false;
+        HashSet<Plot> visited = new HashSet<>();
+        QueueCoordinator queue = this.plot.getArea().getQueue();
+        while ((current = frontier.poll()) != null && max >= 0) {
+            if (visited.contains(current)) {
+                continue;
+            }
+            visited.add(current);
+            Set<Plot> plots;
+            if ((dir == Direction.ALL || dir == Direction.NORTH) && !this.plot.isMerged(Direction.NORTH)) {
+                Plot other = current.getRelative(Direction.NORTH);
+                if (other != null && other.isOwner(uuid) && (other.getBasePlot(false).equals(current.getBasePlot(false))
+                    || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) && (max -= plots.size()) != -1)) {
+                    current.mergePlot(other, removeRoads, queue);
+                    merged.add(current.getId());
+                    merged.add(other.getId());
+                    toReturn = true;
+
+                    if (removeRoads) {
+                        ArrayList<PlotId> ids = new ArrayList<>();
+                        ids.add(current.getId());
+                        ids.add(other.getId());
+                        this.plot.getManager().finishPlotMerge(ids, queue);
+                    }
+                }
+            }
+            if (max >= 0 && (dir == Direction.ALL || dir == Direction.EAST) && !current.isMerged(Direction.EAST)) {
+                Plot other = current.getRelative(Direction.EAST);
+                if (other != null && other.isOwner(uuid) && (other.getBasePlot(false).equals(current.getBasePlot(false))
+                    || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) && (max -= plots.size()) != -1)) {
+                    current.mergePlot(other, removeRoads, queue);
+                    merged.add(current.getId());
+                    merged.add(other.getId());
+                    toReturn = true;
+
+                    if (removeRoads) {
+                        ArrayList<PlotId> ids = new ArrayList<>();
+                        ids.add(current.getId());
+                        ids.add(other.getId());
+                        this.plot.getManager().finishPlotMerge(ids, queue);
+                    }
+                }
+            }
+            if (max >= 0 && (dir == Direction.ALL || dir == Direction.SOUTH) && !this.plot.isMerged(Direction.SOUTH)) {
+                Plot other = current.getRelative(Direction.SOUTH);
+                if (other != null && other.isOwner(uuid) && (other.getBasePlot(false).equals(current.getBasePlot(false))
+                    || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) && (max -= plots.size()) != -1)) {
+                    current.mergePlot(other, removeRoads, queue);
+                    merged.add(current.getId());
+                    merged.add(other.getId());
+                    toReturn = true;
+
+                    if (removeRoads) {
+                        ArrayList<PlotId> ids = new ArrayList<>();
+                        ids.add(current.getId());
+                        ids.add(other.getId());
+                        this.plot.getManager().finishPlotMerge(ids, queue);
+                    }
+                }
+            }
+            if (max >= 0 && (dir == Direction.ALL || dir == Direction.WEST) && !this.plot.isMerged(Direction.WEST)) {
+                Plot other = current.getRelative(Direction.WEST);
+                if (other != null && other.isOwner(uuid) && (other.getBasePlot(false).equals(current.getBasePlot(false))
+                    || (plots = other.getConnectedPlots()).size() <= max && frontier.addAll(plots) && (max -= plots.size()) != -1)) {
+                    current.mergePlot(other, removeRoads, queue);
+                    merged.add(current.getId());
+                    merged.add(other.getId());
+                    toReturn = true;
+
+                    if (removeRoads) {
+                        ArrayList<PlotId> ids = new ArrayList<>();
+                        ids.add(current.getId());
+                        ids.add(other.getId());
+                        this.plot.getManager().finishPlotMerge(ids, queue);
+                    }
+                }
+            }
+            if (queue.size() > 0) {
+                queue.enqueue();
+            }
+        }
+        return toReturn;
+    }
+
+    /**
+     * Moves a plot physically, as well as the corresponding settings.
+     *
+     * @param destination Plot moved to
+     * @param whenDone    task when done
+     * @param allowSwap   whether to swap plots
+     * @return {@code true} if the move was successful, else {@code false}
+     */
+    @Nonnull public CompletableFuture<Boolean> move(@Nonnull final Plot destination,
+                                                    @Nonnull final Runnable whenDone,
+                                                    final boolean allowSwap) {
+        final PlotId offset = PlotId.of(destination.getId().getX() - this.plot.getId().getX(), destination.getId().getY() - this.plot.getId().getY());
+        Location db = destination.getBottomAbs();
+        Location ob = this.plot.getBottomAbs();
+        final int offsetX = db.getX() - ob.getX();
+        final int offsetZ = db.getZ() - ob.getZ();
+        if (!this.plot.hasOwner()) {
+            TaskManager.runTaskLater(whenDone, TaskTime.ticks(1L));
+            return CompletableFuture.completedFuture(false);
+        }
+        AtomicBoolean occupied = new AtomicBoolean(false);
+        Set<Plot> plots = this.plot.getConnectedPlots();
+        for (Plot plot : plots) {
+            Plot other = plot.getRelative(destination.getArea(), offset.getX(), offset.getY());
+            if (other.hasOwner()) {
+                if (!allowSwap) {
+                    TaskManager.runTaskLater(whenDone, TaskTime.ticks(1L));
+                    return CompletableFuture.completedFuture(false);
+                }
+                occupied.set(true);
+            } else {
+                plot.getPlotModificationManager().removeSign();
+            }
+        }
+        // world border
+        destination.updateWorldBorder();
+        final ArrayDeque<CuboidRegion> regions = new ArrayDeque<>(this.plot.getRegions());
+        // move / swap data
+        final PlotArea originArea = this.plot.getArea();
+
+        final Iterator<Plot> plotIterator = plots.iterator();
+
+        CompletableFuture<Boolean> future = null;
+        if (plotIterator.hasNext()) {
+            while (plotIterator.hasNext()) {
+                final Plot plot = plotIterator.next();
+                final Plot other = plot.getRelative(destination.getArea(), offset.getX(), offset.getY());
+                final CompletableFuture<Boolean> swapResult = plot.swapData(other);
+                if (future == null) {
+                    future = swapResult;
+                } else {
+                    future = future.thenCombine(swapResult, (fn, th) -> fn);
+                }
+            }
+        } else {
+            future = CompletableFuture.completedFuture(true);
+        }
+
+        return future.thenApply(result -> {
+            if (!result) {
+                return false;
+            }
+            // copy terrain
+            if (occupied.get()) {
+                new Runnable() {
+                    @Override public void run() {
+                        if (regions.isEmpty()) {
+                            // Update signs
+                            destination.getPlotModificationManager().setSign();
+                            setSign();
+                            // Run final tasks
+                            TaskManager.runTask(whenDone);
+                        } else {
+                            CuboidRegion region = regions.poll();
+                            Location[] corners = plot.getCorners(plot.getWorldName(), region);
+                            Location pos1 = corners[0];
+                            Location pos2 = corners[1];
+                            Location pos3 = pos1.add(offsetX, 0, offsetZ).withWorld(destination.getWorldName());
+                            PlotSquared.platform().getRegionManager().swap(pos1, pos2, pos3, this);
+                        }
+                    }
+                }.run();
+            } else {
+                new Runnable() {
+                    @Override public void run() {
+                        if (regions.isEmpty()) {
+                            Plot plot = destination.getRelative(0, 0);
+                            Plot originPlot = originArea.getPlotAbs(PlotId.of(plot.getId().getX() - offset.getX(), plot.getId().getY() - offset.getY()));
+                            final Runnable clearDone = () -> {
+                                QueueCoordinator queue = PlotModificationManager.this.plot.getArea().getQueue();
+                                for (final Plot current : plot.getConnectedPlots()) {
+                                    PlotModificationManager.this.plot.getManager().claimPlot(current, queue);
+                                }
+                                if (queue.size() > 0) {
+                                    queue.enqueue();
+                                }
+                                plot.getPlotModificationManager().setSign();
+                                TaskManager.runTask(whenDone);
+                            };
+                            if (originPlot != null) {
+                                originPlot.getPlotModificationManager().clear(false, true, clearDone);
+                            } else {
+                                clearDone.run();
+                            }
+                            return;
+                        }
+                        final Runnable task = this;
+                        CuboidRegion region = regions.poll();
+                        Location[] corners = PlotModificationManager.this.plot.getCorners(PlotModificationManager.this.plot.getWorldName(), region);
+                        final Location pos1 = corners[0];
+                        final Location pos2 = corners[1];
+                        Location newPos = pos1.add(offsetX, 0, offsetZ).withWorld(destination.getWorldName());
+                        PlotSquared.platform().getRegionManager().copyRegion(pos1, pos2, newPos, task);
+                    }
+                }.run();
+            }
+            return true;
+        });
+    }
+
+    /**
+     * Unlink a plot and remove the roads
+     *
+     * @return true if plot was linked
+     * @see #unlinkPlot(boolean, boolean)
+     */
+    public boolean unlink() {
+        return this.unlinkPlot(true, true);
+    }
+
+    /**
+     * Swap the plot contents and settings with another location<br>
+     * - The destination must correspond to a valid plot of equal dimensions
+     *
+     * @param destination The other plot to swap with
+     * @param whenDone    A task to run when finished, or null
+     * @return Future that completes with {@code true} if the swap was successful, else {@code false}
+     */
+    @Nonnull public CompletableFuture<Boolean> swap(@Nonnull final Plot destination, @Nonnull final Runnable whenDone) {
+        return this.move(destination, whenDone, true);
+    }
+
+    /**
+     * Moves the plot to an empty location<br>
+     * - The location must be empty
+     *
+     * @param destination Where to move the plot
+     * @param whenDone    A task to run when done, or null
+     * @return Future that completes with {@code true} if the move was successful, else {@code false}
+     */
+    @Nonnull public CompletableFuture<Boolean> move(@Nonnull final Plot destination, @Nonnull final Runnable whenDone) {
+        return this.move(destination, whenDone, false);
+    }
+
+    /**
+     * Sets a component for a plot to the provided blocks<br>
+     * - E.g. floor, wall, border etc.<br>
+     * - The available components depend on the generator being used<br>
+     *
+     * @param component Component to set
+     * @param blocks    Pattern to use the generation
+     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
+     *              otherwise writes to the queue but does not enqueue.
+     * @return {@code true} if the component was set successfully, else {@code false}
+     */
+    public boolean setComponent(@Nonnull final String component, @Nonnull final Pattern blocks, @Nullable final QueueCoordinator queue) {
+        final PlotComponentSetEvent event = PlotSquared.get().getEventDispatcher().callComponentSet(this.plot, component, blocks);
+        return this.plot.getManager().setComponent(this.plot.getId(), event.getComponent(), event.getPattern(), queue);
+    }
+
+    /**
+     * Delete a plot (use null for the runnable if you don't need to be notified on completion)
+     *
+     * @see PlotSquared#removePlot(Plot, boolean)
+     * @see PlotModificationManager#clear(boolean, boolean, Runnable) to simply clear a plot
+     *
+     * @param whenDone task to run when plot has been deleted. Nullable
+     *
+     * @return {@code true} if the deletion was successful, {@code false} if not
+     */
+    public boolean deletePlot(final Runnable whenDone) {
+        if (!this.plot.hasOwner()) {
+            return false;
+        }
+        final Set<Plot> plots = this.plot.getConnectedPlots();
+        this.clear(false, true, () -> {
+            for (Plot current : plots) {
+                current.unclaim();
+            }
+            TaskManager.runTask(whenDone);
+        });
+        return true;
+    }
+
+    /**
+     * Sets components such as border, wall, floor.
+     * (components are generator specific)
+     *
+     * @param component component to set
+     * @param blocks string of block(s) to set component to
+     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
+     *              otherwise writes to the queue but does not enqueue.
+     *
+     * @return {@code true} if the update was successful, {@code false} if not
+     */
+    @Deprecated public boolean setComponent(String component, String blocks, QueueCoordinator queue) {
+        final BlockBucket parsed = ConfigurationUtil.BLOCK_BUCKET.parseString(blocks);
+        if (parsed != null && parsed.isEmpty()) {
+            return false;
+        }
+        return this.setComponent(component, parsed.toPattern(), queue);
+    }
+
+    /**
+     * Remove the east road section of a plot<br>
+     * - Used when a plot is merged<br>
+     *
+     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
+     *              otherwise writes to the queue but does not enqueue.
+     */
+    public void removeRoadEast(@Nullable QueueCoordinator queue) {
+        if (this.plot.getArea().getType() != PlotAreaType.NORMAL && this.plot.getArea().getTerrain() == PlotAreaTerrainType.ROAD) {
+            Plot other = this.plot.getRelative(Direction.EAST);
+            Location bot = other.getBottomAbs();
+            Location top = this.plot.getTopAbs();
+            Location pos1 = Location.at(this.plot.getWorldName(), top.getX(), 0, bot.getZ());
+            Location pos2 = Location.at(this.plot.getWorldName(), bot.getX(), MAX_HEIGHT, top.getZ());
+            PlotSquared.platform().getRegionManager().regenerateRegion(pos1, pos2, true, null);
+        } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
+            this.plot.getArea().getPlotManager().removeRoadEast(this.plot, queue);
+        }
+    }
+
+    /**
+     * Remove the SE road (only effects terrain)
+     *
+     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
+     *              otherwise writes to the queue but does not enqueue.
+     */
+    public void removeRoadSouthEast(@Nullable QueueCoordinator queue) {
+        if (this.plot.getArea().getType() != PlotAreaType.NORMAL && this.plot.getArea().getTerrain() == PlotAreaTerrainType.ROAD) {
+            Plot other = this.plot.getRelative(1, 1);
+            Location pos1 = this.plot.getTopAbs().add(1, 0, 1).withY(0);
+            Location pos2 = other.getBottomAbs().subtract(1, 0, 1).withY(MAX_HEIGHT);
+            PlotSquared.platform().getRegionManager().regenerateRegion(pos1, pos2, true, null);
+        } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
+            this.plot.getArea().getPlotManager().removeRoadSouthEast(this.plot, queue);
+        }
+    }
+
+}

Core/src/main/java/com/plotsquared/core/plot/expiration/ExpireManager.java

@@ -399,10 +399,6 @@ public class ExpireManager {
         }
     }
 
-    public void storeAccountAge(UUID uuid, long time) {
-        this.account_age_cache.put(uuid, time);
-    }
-
     public HashSet<Plot> getPendingExpired() {
         return plotsToDelete == null ? new HashSet<>() : plotsToDelete;
     }
@@ -413,7 +409,7 @@ public class ExpireManager {
                 .callUnlink(plot.getArea(), plot, true, false,
                     PlotUnlinkEvent.REASON.EXPIRE_DELETE);
             if (event.getEventResult() != Result.DENY) {
-                plot.unlinkPlot(event.isCreateRoad(), event.isCreateSign());
+                plot.getPlotModificationManager().unlinkPlot(event.isCreateRoad(), event.isCreateSign());
             }
         }
         for (UUID helper : plot.getTrusted()) {
@@ -430,7 +426,7 @@ public class ExpireManager {
                     Templates.of("plot", plot.toString()));
             }
         }
-        plot.deletePlot(whenDone);
+        plot.getPlotModificationManager().deletePlot(whenDone);
     }
 
     public long getAge(UUID uuid) {

Core/src/main/java/com/plotsquared/core/util/task/AutoClaimFinishTask.java

@@ -25,7 +25,6 @@
  */
 package com.plotsquared.core.util.task;
 
-import com.plotsquared.core.command.Auto;
 import com.plotsquared.core.configuration.caption.Templates;
 import com.plotsquared.core.configuration.caption.TranslatableCaption;
 import com.plotsquared.core.events.PlotMergeEvent;
@@ -73,7 +72,7 @@ public final class AutoClaimFinishTask implements Callable<Boolean> {
                 player.sendMessage(TranslatableCaption.of("events.event_denied"),
                                    Templates.of("value", "Auto Merge"));
             } else {
-                plot.autoMerge(event.getDir(), event.getMax(), player.getUUID(), true);
+                plot.getPlotModificationManager().autoMerge(event.getDir(), event.getMax(), player.getUUID(), true);
             }
         }
         return true;