92 lines
3.1 KiB
Java
92 lines
3.1 KiB
Java
package fr.pandacube.lib.commands;
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import com.mojang.brigadier.CommandDispatcher;
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import com.mojang.brigadier.ParseResults;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import com.mojang.brigadier.suggestion.Suggestions;
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import com.mojang.brigadier.tree.LiteralCommandNode;
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import fr.pandacube.lib.chat.Chat;
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import fr.pandacube.lib.util.Log;
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import net.kyori.adventure.text.ComponentLike;
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import java.util.concurrent.CompletableFuture;
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/**
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* Abstract class that holds a Brigadier {@link CommandDispatcher} instance.
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* Subclasses contain logic to integrate this commands dispatcher into their environment (like Bungee or CLI app).
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* @param <S> the command source (or command sender) type.
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*/
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public abstract class BrigadierDispatcher<S> {
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private final CommandDispatcher<S> dispatcher = new CommandDispatcher<>();
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/**
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* Registers the provided command node into this dispatcher.
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* @param node the node to register.
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*/
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public void register(LiteralCommandNode<S> node) {
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dispatcher.getRoot().addChild(node);
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}
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/**
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* Returns the Brigadier dispatcher.
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* @return the Brigadier dispatcher.
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*/
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public CommandDispatcher<S> getDispatcher() {
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return dispatcher;
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}
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/**
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* Executes the provided command as the provided sender.
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* @param sender the command sender.
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* @param commandWithoutSlash the command, without the eventual slash at the beginning.
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* @return the value returned by the executed command.
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*/
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public int execute(S sender, String commandWithoutSlash) {
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ParseResults<S> parsed = dispatcher.parse(commandWithoutSlash, sender);
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try {
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return dispatcher.execute(parsed);
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} catch (CommandSyntaxException e) {
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sendSenderMessage(sender, Chat.failureText("Error while using the command: " + e.getMessage()));
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return 0;
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} catch (Throwable e) {
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sendSenderMessage(sender, Chat.failureText("Error while running the command: " + e.getMessage()));
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Log.severe(e);
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return 0;
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}
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}
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/**
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* Gets the suggestions for the currently being typed command.
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* @param sender the command sender.
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* @param buffer the command that is being typed.
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* @return the suggestions for the currently being typed command.
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*/
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public Suggestions getSuggestions(S sender, String buffer) {
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ParseResults<S> parsed = dispatcher.parse(buffer, sender);
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try {
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CompletableFuture<Suggestions> futureSuggestions = BrigadierSuggestionsUtil.buildSuggestionBrigadier(parsed);
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return futureSuggestions.join();
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} catch (Throwable e) {
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sendSenderMessage(sender, Chat.failureText("Error while generating the suggestions:\n" + e.getMessage()));
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Log.severe(e);
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return Suggestions.empty().join();
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}
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}
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/**
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* Sends the provided message to the sender.
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* @param sender the sender to send the message to.
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* @param message the message to send.
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*/
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protected abstract void sendSenderMessage(S sender, ComponentLike message);
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}
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