<?php
/**
 * Author: cfn <cfn@leapy.cn>
 */

namespace App\Utils;

use Firebase\JWT\JWT;
use Firebase\JWT\Key;
use function Hyperf\Config\config;

class Token
{
    /**
     * 生成token
     * Author: cfn <cfn@leapy.cn>
     * @param array $data
     * @param int $expireIn
     * @return string
     */
    public static function buildToken(array $data, int $expireIn): string
    {
        $payload = [
            'iss' => config("jwt.iss"),
            'aud' => config("jwt.aud"),
            'iat' => time(),
            'exp' => time() + $expireIn,
            'data' => $data
        ];
        $privateKey = "-----BEGIN RSA PRIVATE KEY-----\n" . wordwrap(config('jwt.private'), 64, "\n", true) . "\n-----END RSA PRIVATE KEY-----";
        return JWT::encode($payload, $privateKey, 'RS256');
    }

    /**
     * 解析token
     * Author: cfn <cfn@leapy.cn>
     * @param $token
     * @return array
     */
    static function parseToken($token): array
    {
        try {
            $publicKey = "-----BEGIN PUBLIC KEY-----\n" . wordwrap(config('jwt.public'), 64, "\n", true) . "\n-----END PUBLIC KEY-----";
            $decoded = JWT::decode($token, new Key($publicKey, 'RS256'));
            $decoded_array = (array)$decoded;
            return (array)$decoded_array['data'];
        } catch (\Exception $exception) {
        }
        return [];
    }
}