<?php

declare(strict_types=1);

namespace Dotenv\Util;

use GrahamCampbell\ResultType\Error;
use GrahamCampbell\ResultType\Success;

/**
 * @internal
 */
final class Regex
{
    /**
     * This class is a singleton.
     *
     * @codeCoverageIgnore
     *
     * @return void
     */
    private function __construct()
    {
        //
    }

    /**
     * Perform a preg match, wrapping up the result.
     *
     * @param string $pattern
     * @param string $subject
     *
     * @return \GrahamCampbell\ResultType\Result<bool,string>
     */
    public static function matches(string $pattern, string $subject)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern) {
            return @\preg_match($pattern, $subject) === 1;
        }, $subject);
    }

    /**
     * Perform a preg match all, wrapping up the result.
     *
     * @param string $pattern
     * @param string $subject
     *
     * @return \GrahamCampbell\ResultType\Result<int,string>
     */
    public static function occurrences(string $pattern, string $subject)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern) {
            return (int) @\preg_match_all($pattern, $subject);
        }, $subject);
    }

    /**
     * Perform a preg replace callback, wrapping up the result.
     *
     * @param string   $pattern
     * @param callable $callback
     * @param string   $subject
     * @param int|null $limit
     *
     * @return \GrahamCampbell\ResultType\Result<string,string>
     */
    public static function replaceCallback(string $pattern, callable $callback, string $subject, int $limit = null)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern, $callback, $limit) {
            return (string) @\preg_replace_callback($pattern, $callback, $subject, $limit ?? -1);
        }, $subject);
    }

    /**
     * Perform a preg split, wrapping up the result.
     *
     * @param string $pattern
     * @param string $subject
     *
     * @return \GrahamCampbell\ResultType\Result<string[],string>
     */
    public static function split(string $pattern, string $subject)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern) {
            /** @var string[] */
            return (array) @\preg_split($pattern, $subject);
        }, $subject);
    }

    /**
     * Perform a preg operation, wrapping up the result.
     *
     * @template V
     *
     * @param callable(string):V $operation
     * @param string             $subject
     *
     * @return \GrahamCampbell\ResultType\Result<V,string>
     */
    private static function pregAndWrap(callable $operation, string $subject)
    {
        $result = $operation($subject);

        if (\preg_last_error() !== \PREG_NO_ERROR) {
            /** @var \GrahamCampbell\ResultType\Result<V,string> */
            return Error::create(\preg_last_error_msg());
        }

        /** @var \GrahamCampbell\ResultType\Result<V,string> */
        return Success::create($result);
    }
}

• [F] Regex.php
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• [F] Str.php
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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}