XFEServerManager

package com.xfestudio.xfeservermanager.api.command;

import com.xfestudio.xfeservermanager.api.util.ApiChecks;
import java.util.Locale;
import java.util.Map;

/** Canonicalizes command roots without depending on a particular command dispatcher. */
public final class CommandNames {
    private static final Map<String, String> VANILLA_ALIASES = Map.of(
            "tp", "teleport"
    );

    private CommandNames() {
    }

    public static String canonicalize(String commandId) {
        String value = ApiChecks.notBlank(commandId, "commandId").toLowerCase(Locale.ROOT);
        while (value.startsWith("/")) {
            value = value.substring(1);
        }
        int space = value.indexOf(' ');
        if (space >= 0) {
            value = value.substring(0, space);
        }
        int separator = value.indexOf(':');
        String namespace = separator >= 0 ? value.substring(0, separator) : "minecraft";
        String path = separator >= 0 ? value.substring(separator + 1) : value;
        if (namespace.equals("minecraft")) {
            path = VANILLA_ALIASES.getOrDefault(path, path);
        }
        if (namespace.isBlank() || path.isBlank()) {
            throw new IllegalArgumentException("commandId must contain a valid namespace and path");
        }
        return namespace + ':' + path;
    }
}