<?php

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);
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTUxNjAxNjU1MTIxOTI0MCA4NDU3ODQ5NjYyNTM5MzYwIDE5MzQ2NzI5MzU2MDE1MjE=