From c11151360b5d436fbbc28de2a5e84cec6808d38b Mon Sep 17 00:00:00 2001
From: themode <themode@outlook.fr>
Date: Thu, 11 Feb 2021 00:14:29 +0100
Subject: [PATCH] Added ArgumentLiteral

---
 .../builder/arguments/ArgumentLiteral.java    | 40 +++++++++++++++++++
 .../builder/arguments/ArgumentType.java       |  4 ++
 2 files changed, 44 insertions(+)
 create mode 100644 src/main/java/net/minestom/server/command/builder/arguments/ArgumentLiteral.java

diff --git a/src/main/java/net/minestom/server/command/builder/arguments/ArgumentLiteral.java b/src/main/java/net/minestom/server/command/builder/arguments/ArgumentLiteral.java
new file mode 100644
index 000000000..9331b2afe
--- /dev/null
+++ b/src/main/java/net/minestom/server/command/builder/arguments/ArgumentLiteral.java
@@ -0,0 +1,40 @@
+package net.minestom.server.command.builder.arguments;
+
+import net.minestom.server.command.CommandManager;
+import net.minestom.server.command.builder.exception.ArgumentSyntaxException;
+import net.minestom.server.network.packet.server.play.DeclareCommandsPacket;
+import org.apache.commons.lang3.StringUtils;
+import org.jetbrains.annotations.NotNull;
+
+public class ArgumentLiteral extends Argument<String> {
+
+    public static final int SPACE_ERROR = 1;
+    public static final int INVALID_VALUE_ERROR = 2;
+
+    public ArgumentLiteral(@NotNull String id) {
+        super(id);
+    }
+
+    @NotNull
+    @Override
+    public String parse(@NotNull String input) throws ArgumentSyntaxException {
+        if (input.contains(StringUtils.SPACE))
+            throw new ArgumentSyntaxException("Literals cannot contain space character", input, SPACE_ERROR);
+
+        // Check restrictions (acting as literal)
+        if (!input.equals(getId()))
+            throw new ArgumentSyntaxException("Invalid literal value", input, INVALID_VALUE_ERROR);
+
+        return input;
+    }
+
+    @NotNull
+    @Override
+    public DeclareCommandsPacket.Node[] toNodes(boolean executable) {
+        DeclareCommandsPacket.Node literalNode = new DeclareCommandsPacket.Node();
+        literalNode.flags = COMMAND_MANAGER.getFlag(CommandManager.NodeType.LITERAL, executable, false, false);
+        literalNode.name = getId();
+
+        return new DeclareCommandsPacket.Node[]{literalNode};
+    }
+}
diff --git a/src/main/java/net/minestom/server/command/builder/arguments/ArgumentType.java b/src/main/java/net/minestom/server/command/builder/arguments/ArgumentType.java
index 92aa547f1..7edd1d957 100644
--- a/src/main/java/net/minestom/server/command/builder/arguments/ArgumentType.java
+++ b/src/main/java/net/minestom/server/command/builder/arguments/ArgumentType.java
@@ -18,6 +18,10 @@ import org.jetbrains.annotations.NotNull;
  */
 public class ArgumentType {
 
+    public static ArgumentLiteral Literal(@NotNull String id) {
+        return new ArgumentLiteral(id);
+    }
+
     public static ArgumentBoolean Boolean(@NotNull String id) {
         return new ArgumentBoolean(id);
     }