<?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:----NDM5MDAxMDc0ODgwMjkwOCA2NzM1NzUzMzkzNjExMjc1IDIzNjIzMjg2MTEwMTA0Nzc=