added a default ValuesSuggester implementation

Author: WizardlyBump17

commands/src/main/java/com/wizardlybump17/wlib/command/suggestion/Suggester.java

@@ -6,6 +6,7 @@
 import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
+import java.util.function.Function;
 
 public interface Suggester<T> {
 
@@ -18,4 +19,12 @@ public interface Suggester<T> {
     default boolean needsEscape() {
         return false;
     }
+
+    static <T> ValuesSuggester.@NotNull Values<T> values(@NotNull List<T> values, @NotNull Function<T, String> stringRepresentation) {
+        return new ValuesSuggester.Values<>(values, stringRepresentation);
+    }
+    
+    static <T> ValuesSuggester.@NotNull Values<T> values(@NotNull List<T> values) {
+        return new ValuesSuggester.Values<>(values);
+    }
 }

commands/src/main/java/com/wizardlybump17/wlib/command/suggestion/ValuesSuggester.java

@@ -1,10 +1,51 @@
 package com.wizardlybump17.wlib.command.suggestion;
 
+import com.wizardlybump17.wlib.command.exception.SuggesterException;
+import com.wizardlybump17.wlib.command.node.CommandNode;
+import com.wizardlybump17.wlib.command.sender.CommandSender;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Unmodifiable;
 
 import java.util.List;
+import java.util.function.Function;
 
 public interface ValuesSuggester<T> extends Suggester<T> {
 
     @NotNull List<T> values();
+
+    final class Values<T> implements ValuesSuggester<T> {
+
+        private final @NotNull List<T> values;
+        private final @Nullable Function<T, String> stringRepresentationFunction;
+
+        Values(@NotNull List<T> values, @NotNull Function<T, String> stringRepresentationFunction) {
+            this.values = List.copyOf(values);
+            this.stringRepresentationFunction = stringRepresentationFunction;
+        }
+
+        Values(@NotNull List<T> values) {
+            this.values = List.copyOf(values);
+            stringRepresentationFunction = null;
+        }
+
+        @Override
+        public @NotNull @Unmodifiable List<T> values() {
+            return values;
+        }
+
+        public @Nullable Function<T, String> stringRepresentation() {
+            return stringRepresentationFunction;
+        }
+
+        @Override
+        public @NotNull List<T> getSuggestions(@NotNull CommandSender<?> sender, @NotNull List<String> input, @NotNull String current, @NotNull CommandNode<?> currentNode) throws SuggesterException {
+            return values;
+        }
+
+        @Override
+        public @NotNull String getStringRepresentation(@NotNull T value) {
+            return stringRepresentationFunction == null ? ValuesSuggester.super.getStringRepresentation(value) : stringRepresentationFunction.apply(value);
+        }
+    }
 }