/**
* Register a regular command argument/parameter for this command.
*
* <p>When adding multiple arguments the order you add them in determines the indexing of the
* argument!
*
* @param name The argument name/key used to identify the argument. This name must be used with
* the {@link CmdData} result to get the argument value.
* @param requirement The requirement for this argument. (See {@link ArgRequirement} for more
* info)
* @param option The {@link SingleOption} used for parsing the argument. This option determines
* the argument value and everything else. For example if it's a {@link PlayerO} the argument
* value must be a player and the result value would be a player.
* @return The added {@link Argument}
* @throws IllegalArgumentException if an argument with the specified name is already registered
* for this command if the argument option is a sub command option and the command already has
* an sub command argument or if the argument option is a sub command option and the command
* is a sub command.
*/
public Argument addArgument(String name, ArgRequirement requirement, SingleOption option) {
Argument argument = new Argument(name, requirement, option);
if (getAllArguments().containsKey(name.toLowerCase())) {
throw new IllegalArgumentException(
"The command already has an argument with the name '" + name + "'!");
}
if (argument.option() instanceof SubCmdO) {
if (isSub()) {
throw new IllegalArgumentException(
"Sub commands can not have sub command arguments. [argument=" + name + "]");
}
for (Argument arg : arguments.values()) {
if (arg.option() instanceof SubCmdO) {
throw new IllegalArgumentException(
"The command already has a sub command argument."
+ "Commands can only have one sub command option. [argument="
+ name
+ "]");
}
}
}
arguments.put(name.toLowerCase(), argument);
return argument;
}
/**
* Try to get an array with sub commands that this command has.
*
* <p>If this command doesn't have sub commands this will return {@code null}. See {@link
* #hasSubCmds()}
*
* @return Array with {@link SubCmd}s (May be {@code null} when the command doesn't have sub
* commands)
*/
public SubCmd[] getSubCmds() {
if (isSub() || arguments.size() < 1) {
return null;
}
for (Argument arg : arguments.values()) {
if (arg.option() instanceof SubCmdO) {
return ((SubCmdO) arg.option()).getSubCmds();
}
}
return null;
}