Async shop creation

This should fix timeouts when (re-)loading shops

src/main/java/de/epiceric/shopchest/listeners/ChestProtectListener.java

@@ -73,9 +73,6 @@ public class ChestProtectListener implements Listener {
                 public void onResult(Void result) {
                     newShop.create(true);
                     shopUtils.addShop(newShop, true);
-                    for (Player player : shop.getLocation().getWorld().getPlayers()) {
-                        shopUtils.updateShops(player, true);
-                    }
                 }
             });
         } else {
@@ -271,9 +268,6 @@ public class ChestProtectListener implements Listener {
                                 newShop.create(true);
                                 shopUtils.addShop(newShop, true);
                                 plugin.debug(String.format("%s extended %s's shop (#%d)", p.getName(), shop.getVendor().getName(), shop.getID()));
-                                for (Player player : shop.getLocation().getWorld().getPlayers()) {
-                                    shopUtils.updateShops(player, true);
-                                }
                             }
                         });
                     } else {

src/main/java/de/epiceric/shopchest/listeners/ShopInteractListener.java

@@ -769,11 +769,6 @@ public class ShopInteractListener implements Listener {
         } else {
             executor.sendMessage(LanguageUtils.getMessage(Message.SHOP_CREATED, placeholder));
         }
-
-        // next update will display the new shop
-        for (Player player : location.getWorld().getPlayers()) {
-            plugin.getShopUtils().resetPlayerLocation(player);
-        }
     }
 
     /**

src/main/java/de/epiceric/shopchest/shop/Shop.java

@@ -10,6 +10,8 @@ import de.epiceric.shopchest.language.LanguageUtils;
 import de.epiceric.shopchest.nms.Hologram;
 import de.epiceric.shopchest.utils.ItemUtils;
 import de.epiceric.shopchest.utils.Utils;
+
+import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.OfflinePlayer;
@@ -19,8 +21,10 @@ import org.bukkit.block.BlockFace;
 import org.bukkit.block.Chest;
 import org.bukkit.block.DoubleChest;
 import org.bukkit.block.data.Directional;
+import org.bukkit.entity.Player;
 import org.bukkit.inventory.InventoryHolder;
 import org.bukkit.inventory.ItemStack;
+import org.bukkit.scheduler.BukkitRunnable;
 
 import java.util.*;
 
@@ -109,8 +113,14 @@ public class Shop {
             return false;
         }
 
-        if (hologram == null || !hologram.exists()) createHologram();
+        new BukkitRunnable() {
-        if (item == null) createItem();
+            @Override
+            public void run() {
+                if (hologram == null || !hologram.exists()) {
+                    createHologram();
+                }
+            }
+        }.runTaskAsynchronously(plugin);
 
         created = true;
         return true;
@@ -152,6 +162,13 @@ public class Shop {
             itemStack.setAmount(1);
 
             item = new ShopItem(plugin, itemStack, itemLocation);
+
+            // Shop done loading, update shops for everyone
+            plugin.getUpdater().beforeNext(() -> {
+                for (Player player : location.getWorld().getPlayers()) {
+                    plugin.getShopUtils().resetPlayerLocation(player);
+                }
+            });
         }
     }
 
@@ -188,10 +205,18 @@ public class Shop {
             face = ((Directional) chests[0].getBlockData()).getFacing();
         }
 
-        String[] holoText = getHologramText();
+        final String[] holoText = getHologramText();
-        Location holoLocation = getHologramLocation(doubleChest, chests, face);
+        final Location holoLocation = getHologramLocation(doubleChest, chests, face);
 
+        new BukkitRunnable(){
+            @Override
+            public void run() {
+                // Create hologram synchronously because the
+                // constructor is modifying world lists
                 hologram = new Hologram(plugin, holoText, holoLocation);
+                if (item == null) createItem();
+            }
+        }.runTask(plugin);
     }
 
     /**
@@ -279,41 +304,40 @@ public class Shop {
     }
 
     private Location getHologramLocation(boolean doubleChest, Chest[] chests, BlockFace face) {
-        Block b = location.getBlock();
+        World w = location.getWorld();
-        Location holoLocation;
+        int x = location.getBlockX();
+        int y  = location.getBlockY();
+        int z = location.getBlockZ();
 
-        World w = b.getWorld();
+        Location holoLocation = new Location(w, x, y, z);
-        int x = b.getX();
-        int y  = b.getY();
-        int z = b.getZ();
 
-        double subtractY = 0.6;
+        double deltaY = -0.6;
 
-        if (Config.hologramFixedBottom) subtractY = 0.85;
+        if (Config.hologramFixedBottom) deltaY = -0.85;
 
         if (doubleChest) {
             Chest c1 = Utils.getMajorVersion() >= 13 && (face == BlockFace.NORTH || face == BlockFace.EAST) ? chests[1] : chests[0];
             Chest c2 = Utils.getMajorVersion() >= 13 && (face == BlockFace.NORTH || face == BlockFace.EAST) ? chests[0] : chests[1];
 
-            if (b.getLocation().equals(c1.getLocation())) {
+            if (holoLocation.equals(c1.getLocation())) {
                 if (c1.getX() != c2.getX()) {
-                    holoLocation = new Location(w, x, y - subtractY, z + 0.5);
+                    holoLocation.add(0, deltaY, 0.5);
                 } else if (c1.getZ() != c2.getZ()) {
-                    holoLocation = new Location(w, x + 0.5, y - subtractY, z);
+                    holoLocation.add(0.5, deltaY, 0);
                 } else {
-                    holoLocation = new Location(w, x + 0.5, y - subtractY, z + 0.5);
+                    holoLocation.add(0.5, deltaY, 0.5);
                 }
             } else {
                 if (c1.getX() != c2.getX()) {
-                    holoLocation = new Location(w, x + 1, y - subtractY, z + 0.5);
+                    holoLocation.add(1, deltaY, 0.5);
                 } else if (c1.getZ() != c2.getZ()) {
-                    holoLocation = new Location(w, x + 0.5, y - subtractY, z + 1);
+                    holoLocation.add(0.5, deltaY, 1);
                 } else {
-                    holoLocation = new Location(w, x + 0.5, y - subtractY, z + 0.5);
+                    holoLocation.add(0.5, deltaY, 0.5);
                 }
             }
         } else {
-            holoLocation = new Location(w, x + 0.5, y - subtractY, z + 0.5);
+            holoLocation.add(0.5, deltaY, 0.5);
         }
 
         holoLocation.add(0, Config.hologramLift, 0);

src/main/java/de/epiceric/shopchest/utils/ShopUtils.java

@@ -251,10 +251,6 @@ public class ShopUtils {
                             }
                         }
 
-                        for (Player player : Bukkit.getOnlinePlayers()) {
-                            updateShops(player, true);
-                        }
-
                         if (callback != null) callback.callSyncResult(result.size());
                     }