CC-Tweaked/src/main/java/dan200/computercraft/shared/command/arguments/ComputerArgumentType.java

95 lines
3.1 KiB
Java

/*
* This file is part of ComputerCraft - http://www.computercraft.info
* Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
* Send enquiries to dratcliffe@gmail.com
*/
package dan200.computercraft.shared.command.arguments;
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.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import dan200.computercraft.shared.command.arguments.ComputersArgumentType.ComputersSupplier;
import dan200.computercraft.shared.computer.core.ServerComputer;
import net.minecraft.command.CommandSource;
import java.util.Collection;
import java.util.concurrent.CompletableFuture;
import static dan200.computercraft.shared.command.Exceptions.COMPUTER_ARG_MANY;
public final class ComputerArgumentType implements ArgumentType<ComputerArgumentType.ComputerSupplier>
{
private static final ComputerArgumentType INSTANCE = new ComputerArgumentType();
public static ComputerArgumentType oneComputer()
{
return INSTANCE;
}
public static ServerComputer getComputerArgument( CommandContext<CommandSource> context, String name ) throws CommandSyntaxException
{
return context.getArgument( name, ComputerSupplier.class ).unwrap( context.getSource() );
}
private ComputerArgumentType()
{
}
@Override
public ComputerSupplier parse( StringReader reader ) throws CommandSyntaxException
{
int start = reader.getCursor();
ComputersSupplier supplier = ComputersArgumentType.someComputers().parse( reader );
String selector = reader.getString().substring( start, reader.getCursor() );
return s -> {
Collection<ServerComputer> computers = supplier.unwrap( s );
if( computers.size() == 1 ) return computers.iterator().next();
StringBuilder builder = new StringBuilder();
boolean first = true;
for( ServerComputer computer : computers )
{
if( first )
{
first = false;
}
else
{
builder.append( ", " );
}
builder.append( computer.getInstanceID() );
}
// We have an incorrect number of computers: reset and throw an error
reader.setCursor( start );
throw COMPUTER_ARG_MANY.createWithContext( reader, selector, builder.toString() );
};
}
@Override
public <S> CompletableFuture<Suggestions> listSuggestions( CommandContext<S> context, SuggestionsBuilder builder )
{
return ComputersArgumentType.someComputers().listSuggestions( context, builder );
}
@Override
public Collection<String> getExamples()
{
return ComputersArgumentType.someComputers().getExamples();
}
@FunctionalInterface
public interface ComputerSupplier
{
ServerComputer unwrap( CommandSource source ) throws CommandSyntaxException;
}
}