Refactor ItemStackBuilder#meta to use ItemStack#editMeta method

pandalib-paper/src/main/java/fr/pandacube/lib/paper/util/ItemStackBuilder.java

@@ -92,19 +92,14 @@ public class ItemStackBuilder {
 	}
 
 	public ItemStackBuilder meta(Consumer<ItemMeta> metaUpdater) {
-		metaUpdater.accept(getOrInitMeta());
-		updateMeta();
-		return this;
+		return meta(metaUpdater, ItemMeta.class);
 	}
 
 	public <T extends ItemMeta> ItemStackBuilder meta(Consumer<T> metaUpdater, Class<T> metaType) {
-		ItemMeta m = getOrInitMeta();
-		if (!metaType.isInstance(m)) {
-			Log.warning("Item meta of " + stack.getType() + " is not of type " + metaType.getSimpleName(), new Throwable());
-			return this;
-		}
-		metaUpdater.accept(metaType.cast(m));
-		updateMeta();
+		stack.editMeta(metaType, m -> {
+			metaUpdater.accept(m);
+			cachedMeta = m;
+		});
 		return this;
 	}
 	

pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermGroup.java

@@ -1,12 +1,15 @@
 package fr.pandacube.lib.permissions;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.stream.Collectors;
-
+import fr.pandacube.lib.db.DBException;
 import fr.pandacube.lib.permissions.PermissionsCachedBackendReader.CachedGroup;
 import fr.pandacube.lib.permissions.SQLPermissions.EntityType;
 
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
 /**
  * Represents an group in the permission system.
  */
@@ -47,6 +50,23 @@ public final class PermGroup extends PermEntity {
 				.toList());
 	}
 
+	/**
+	 * Gets all the players that inherits from this group.
+	 * This method does not use cached data.
+	 * @param recursive true to include players that are in inherited groups.
+	 * @return the players that inherits from this group.
+	 * @throws DBException if a database error occurs.
+	 */
+	public Set<UUID> getInheritedPlayers(boolean recursive) throws DBException {
+		Set<UUID> players = new HashSet<>(getBackendEntity().getPlayersInGroup());
+		if (recursive) {
+			for (PermGroup inheritedGroups : getInheritedGroups()) {
+				players.addAll(inheritedGroups.getInheritedPlayers(true));
+			}
+		}
+		return players;
+	}
+
 	/**
 	 * Tells if this group is a default group.
 	 * A player inherits all default groups when they don’t explicitely inherit from at least one group.

pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermissionsCachedBackendReader.java

@@ -1,6 +1,7 @@
 package fr.pandacube.lib.permissions;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -115,6 +116,13 @@ import fr.pandacube.lib.util.Log;
 		
 		return player;
 	}
+
+
+
+
+
+
+
 	
 	
 	
@@ -299,6 +307,19 @@ import fr.pandacube.lib.util.Log;
 			super(n, p, s, perms);
 			deflt = dflt;
 		}
+
+
+
+		/* package */ Set<UUID> getPlayersInGroup() throws DBException {
+			Set<UUID> ids = new HashSet<>();
+			DB.forEach(SQLPermissions.class,
+					SQLPermissions.type.eq(EntityType.User.getCode())
+							.and(SQLPermissions.key.eq("groups"))
+							.and(SQLPermissions.value.eq(name)),
+					e -> ids.add(UUID.fromString(e.get(SQLPermissions.name)))
+			);
+			return ids;
+		}
 	}
     
 }