package com.project.ding.utils;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import io.jsonwebtoken.security.Keys;
import org.springframework.stereotype.Component;

import java.security.Key;
import java.util.Date;
import java.util.List;

@Component
public class JwtUtils {
    private static final Key KEY = Keys.secretKeyFor(SignatureAlgorithm.HS256);
    private static final long EXPIRE = 86400000; // 24小时

    public String createToken(String userId, List<String> roles) {
        return Jwts.builder()
                .setSubject(userId)
                .claim("roles", roles)
                .setExpiration(new Date(System.currentTimeMillis() + EXPIRE))
                .signWith(KEY).compact();
     }

    public Claims parseToken(String token) {
        return Jwts.parserBuilder().setSigningKey(KEY).build().parseClaimsJws(token).getBody();
    }
}