<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

use Symfony\Polyfill\Iconv as p;

if (!defined('ICONV_IMPL')) {
    define('ICONV_IMPL', 'Symfony');
}
if (!defined('ICONV_VERSION')) {
    define('ICONV_VERSION', '1.0');
}
if (!defined('ICONV_MIME_DECODE_STRICT')) {
    define('ICONV_MIME_DECODE_STRICT', 1);
}
if (!defined('ICONV_MIME_DECODE_CONTINUE_ON_ERROR')) {
    define('ICONV_MIME_DECODE_CONTINUE_ON_ERROR', 2);
}

if (!function_exists('iconv')) {
    function iconv(string $from_encoding, string $to_encoding, string $string): string|false { return p\Iconv::iconv($from_encoding, $to_encoding, $string); }
}
if (!function_exists('iconv_get_encoding')) {
    function iconv_get_encoding(string $type = 'all'): array|string|false { return p\Iconv::iconv_get_encoding($type); }
}
if (!function_exists('iconv_set_encoding')) {
    function iconv_set_encoding(string $type, string $encoding): bool { return p\Iconv::iconv_set_encoding($type, $encoding); }
}
if (!function_exists('iconv_mime_encode')) {
    function iconv_mime_encode(string $field_name, string $field_value, array $options = []): string|false { return p\Iconv::iconv_mime_encode($field_name, $field_value, $options); }
}
if (!function_exists('iconv_mime_decode_headers')) {
    function iconv_mime_decode_headers(string $headers, int $mode = 0, string $encoding = null): array|false { return p\Iconv::iconv_mime_decode_headers($headers, $mode, $encoding); }
}

if (extension_loaded('mbstring')) {
    if (!function_exists('iconv_strlen')) {
        function iconv_strlen(string $string, string $encoding = null): int|false { null === $encoding && $encoding = p\Iconv::$internalEncoding; return mb_strlen($string, $encoding); }
    }
    if (!function_exists('iconv_strpos')) {
        function iconv_strpos(string $haystack, string $needle, int $offset = 0, string $encoding = null): int|false { null === $encoding && $encoding = p\Iconv::$internalEncoding; return mb_strpos($haystack, $needle, $offset, $encoding); }
    }
    if (!function_exists('iconv_strrpos')) {
        function iconv_strrpos(string $haystack, string $needle, string $encoding = null): int|false { null === $encoding && $encoding = p\Iconv::$internalEncoding; return mb_strrpos($haystack, $needle, 0, $encoding); }
    }
    if (!function_exists('iconv_substr')) {
        function iconv_substr(string $string, int $offset, int $length = null, string $encoding = null): string|false { null === $encoding && $encoding = p\Iconv::$internalEncoding; return mb_substr($string, $offset, $length, $encoding); }
    }
    if (!function_exists('iconv_mime_decode')) {
        function iconv_mime_decode($string, $mode = 0, $encoding = null) { null === $encoding && $encoding = p\Iconv::$internalEncoding; return mb_decode_mimeheader($string, $mode, $encoding); }
    }
} else {
    if (!function_exists('iconv_strlen')) {
        if (extension_loaded('xml')) {
            function iconv_strlen(string $string, string $encoding = null): int|false { return p\Iconv::strlen1($string, $encoding); }
        } else {
            function iconv_strlen(string $string, string $encoding = null): int|false { return p\Iconv::strlen2($string, $encoding); }
        }
    }

    if (!function_exists('iconv_strpos')) {
        function iconv_strpos(string $haystack, string $needle, int $offset = 0, string $encoding = null): int|false { return p\Iconv::iconv_strpos($haystack, $needle, $offset, $encoding); }
    }
    if (!function_exists('iconv_strrpos')) {
        function iconv_strrpos(string $haystack, string $needle, string $encoding = null): int|false { return p\Iconv::iconv_strrpos($haystack, $needle, $encoding); }
    }
    if (!function_exists('iconv_substr')) {
        function iconv_substr(string $string, int $offset, int $length = null, string $encoding = null): string|false { return p\Iconv::iconv_substr($string, $offset, $length, $encoding); }
    }
    if (!function_exists('iconv_mime_decode')) {
        function iconv_mime_decode(string $string, int $mode = 0, string $encoding = null): string|false { return p\Iconv::iconv_mime_decode($string, $mode, $encoding); }
    }
}