package com.arthenica.smartexception.java;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * smartexception-java 的最小 stub
 * ffmpeg-kit 6.0.2 内部 swordfish 库依赖此类的 getStackTraceString / registerRootPackage
 * 我们不需要完整功能,只需保证类存在且方法签名匹配
 */
public class Exceptions {

    private static final Set<String> rootPackages = Collections.synchronizedSet(new HashSet<String>());

    public static void registerRootPackage(String rootPackage) {
        if (rootPackage != null) {
            rootPackages.add(rootPackage);
        }
    }

    public static String[] getRegisteredRootPackages() {
        return rootPackages.toArray(new String[0]);
    }

    public static void unregisterRootPackage(String rootPackage) {
        if (rootPackage != null) {
            rootPackages.remove(rootPackage);
        }
    }

    public static String getStackTraceString(Throwable t) {
        if (t == null) return "";
        StringWriter sw = new StringWriter();
        t.printStackTrace(new PrintWriter(sw));
        return sw.toString();
    }
}