<?php

declare(strict_types=1);

namespace App\Helper;

use Hyperf\Utils\Str as BaseStr;

class Str extends BaseStr
{
    const PASSPHRASE = 'O0IP563o9WjoogRNFGN4';
    const CIPHER_ALGO = 'aes-256-cbc';

    public static function getRandomString($length, $special = true)
    {
        $chars = array(
            'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
            'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
            'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
            'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
            'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '0', '1', '2',
            '3', '4', '5', '6', '7', '8', '9'
        );
    
        if($special){
            $chars = array_merge($chars, array(
                '!', '@', '#', '$', '?', '|', '{', '/', ':', ';',
                '%', '^', '&', '*', '(', ')', '-', '_', '[', ']',
                '}', '<', '>', '~', '+', '=', ',', '.'
            ));
        }
    
        $charsLen = count($chars) - 1;
        shuffle($chars);
        
        $password = '';
        for($i=0; $i<$length; $i++){
            $password .= $chars[mt_rand(0, $charsLen)];
        }

        return $password;
    }

    public static function encrypt(string $data)
    {
        $iv = '62dTsnuD1Ow68pR8';
        return openssl_encrypt($data, self::CIPHER_ALGO, self::PASSPHRASE, 0, $iv);
    }

    public static function decrypt(string $password)
    {
        $iv = '62dTsnuD1Ow68pR8';
        return openssl_decrypt($password, self::CIPHER_ALGO, self::PASSPHRASE, 0, $iv);
    }

    public static function parseUrl(string $url)
    {
        if (empty($url)) {
            return $url;
        }
        
        $item = explode(':', $url);
        if (!isset($item[0]) || in_array($item[0], ['http', 'https'])) {
            return $url;
        }
        return self::getFileUrlViaStorage($item[1], $item[0]);
    }

    public static function  getFileUrlViaStorage(string $url, string $storage): string
    {
        $domain = config('file.storage.' . $storage . '.domain');
        $prefixPath = config('file.storage.' . $storage . '.prefix_path', '');
        return $domain . $prefixPath . $url;
    }
}