package launcher.helper;

import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
import launcher.LauncherAPI;

import javax.script.ScriptEngine;
import java.util.Locale;

public final class CommonHelper
{
    private static final String[] SCRIPT_ENGINE_ARGS = {"-strict", "--language=es6", "--optimistic-types=false"};

    private CommonHelper()
    {
    }

    @LauncherAPI
    public static String low(String s)
    {
        return s.toLowerCase(Locale.US);
    }

    @LauncherAPI
    public static ScriptEngine newScriptEngine()
    {
        return new NashornScriptEngineFactory().getScriptEngine(SCRIPT_ENGINE_ARGS);
    }

    @LauncherAPI
    public static Thread newThread(String name, boolean daemon, Runnable runnable)
    {
        Thread thread = new Thread(runnable);
        thread.setDaemon(daemon);
        if (name != null)
        {
            thread.setName(name);
        }
        return thread;
    }

    @LauncherAPI
    public static String replace(String source, String... params)
    {
        for (int i = 0; i < params.length; i += 2)
        {
            source = source.replace('%' + params[i] + '%', params[i + 1]);
        }
        return source;
    }
}