src/game/java/net/minecraft/gametest/framework/TestFunctionArgument.java

package net.minecraft.gametest.framework;

import com.mojang.brigadier.Message;
import com.mojang.brigadier.StringReader;
import com.mojang.brigadier.arguments.ArgumentType;
import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import java.util.Arrays;
import java.util.Collection;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.stream.Stream;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.network.chat.Component;

public class TestFunctionArgument implements ArgumentType<TestFunction> {
    private static final Collection<String> EXAMPLES = Arrays.asList("techtests.piston", "techtests");

    public TestFunction parse(StringReader p_128090_) throws CommandSyntaxException {
        String s = p_128090_.readUnquotedString();
        Optional<TestFunction> optional = GameTestRegistry.findTestFunction(s);
        if (optional.isPresent()) {
            return optional.get();
        } else {
            Message message = Component.literal("No such test: " + s);
            throw new CommandSyntaxException(new SimpleCommandExceptionType(message), message);
        }
    }

    public static TestFunctionArgument testFunctionArgument() {
        return new TestFunctionArgument();
    }

    public static TestFunction getTestFunction(CommandContext<CommandSourceStack> p_128092_, String p_128093_) {
        return p_128092_.getArgument(p_128093_, TestFunction.class);
    }

    @Override
    public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> p_128096_, SuggestionsBuilder p_128097_) {
        return suggestTestFunction(p_128096_, p_128097_);
    }

    public static <S> CompletableFuture<Suggestions> suggestTestFunction(CommandContext<S> p_335990_, SuggestionsBuilder p_334437_) {
        Stream<String> stream = GameTestRegistry.getAllTestFunctions().stream().map(TestFunction::testName);
        return SharedSuggestionProvider.suggest(stream, p_334437_);
    }

    @Override
    public Collection<String> getExamples() {
        return EXAMPLES;
    }
}