//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//

package com.luozhihui.project.util;

import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.exceptions.TokenExpiredException;
import com.auth0.jwt.interfaces.DecodedJWT;
import com.auth0.jwt.interfaces.JWTVerifier;
import com.auth0.jwt.interfaces.Verification;
import java.util.Date;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(
        prefix = "jwt"
)
public class JwtUtil {
    public static String header;
    public static String tokenPrefix;
    public static String secret;
    public static long expireTime;
    public static final String USER_LOGIN_TOKEN = "token";

    public JwtUtil() {
    }

    public void setHeader(String header) {
        JwtUtil.header = header;
    }

    public void setTokenPrefix(String tokenPrefix) {
        JwtUtil.tokenPrefix = tokenPrefix;
    }

    public void setSecret(String secret) {
        JwtUtil.secret = secret;
    }

    public void setExpireTime(int expireTimeInt) {
        expireTime = (long)expireTimeInt;
    }

    public static String createToken(String sub) {
        return tokenPrefix + JWT.create().withSubject(sub).withExpiresAt(new Date(System.currentTimeMillis() + expireTime)).sign(Algorithm.HMAC512(secret));
    }

    public static String validateToken(String token) throws Exception {
        try {
            Verification verification = JWT.require(Algorithm.HMAC512(secret));
            JWTVerifier jwtVerifier = verification.build();
            String noPrefixToken = token.replace(tokenPrefix, "");
            DecodedJWT decodedJwt = jwtVerifier.verify(noPrefixToken);
            return decodedJwt != null ? decodedJwt.getSubject() : "";
        } catch (TokenExpiredException var5) {
            TokenExpiredException e = var5;
            e.printStackTrace();
            return "";
        } catch (Exception var6) {
            Exception e = var6;
            e.printStackTrace();
            return "";
        }
    }

    public static boolean isNeedUpdate(String token) throws Exception {
        Date expiresAt = null;

        try {
            expiresAt = JWT.require(Algorithm.HMAC512(secret)).build().verify(token.replace(tokenPrefix, "")).getExpiresAt();
        } catch (TokenExpiredException var3) {
            return true;
        } catch (Exception var4) {
            throw new Exception("token 验证失败");
        }

        return expiresAt.getTime() - System.currentTimeMillis() < expireTime >> 1;
    }
}