<?php

use App\Components\Helpers;

define('KB', 1024);
define('MB', 1048576);
define('GB', 1073741824);
define('TB', 1099511627776);
define('PB', 1125899906842624);

define('Minute', 60);
define('Hour', 3600);
define('Day', 86400);

define('Mbps', 125000);

// base64加密（处理URL）
if ( ! function_exists('base64url_encode')) {
    function base64url_encode($data)
    {
        return strtr(base64_encode($data), ['+' => '-', '/' => '_', '=' => '']);
    }
}

// base64解密（处理URL）
if ( ! function_exists('base64url_decode')) {
    function base64url_decode($data)
    {
        return base64_decode(strtr($data, '-_', '+/'));
    }
}

// 根据流量值自动转换单位输出
if ( ! function_exists('flowAutoShow')) {
    function flowAutoShow($value)
    {
        $value = abs($value);
        if ($value >= PB) {
            return round($value / PB, 2) . "PB";
        }

        if ($value >= TB) {
            return round($value / TB, 2) . "TB";
        }

        if ($value >= GB) {
            return round($value / GB, 2) . "GB";
        }

        if ($value >= MB) {
            return round($value / MB, 2) . "MB";
        }

        if ($value >= KB) {
            return round($value / KB, 2) . "KB";
        }

        return round($value, 2) . "B";
    }
}

if ( ! function_exists('toMB')) {
    function toMB($traffic)
    {
        return $traffic * MB;
    }
}

if ( ! function_exists('toGB')) {
    function toGB($traffic)
    {
        return $traffic * GB;
    }
}

if ( ! function_exists('flowToGB')) {
    function flowToGB($traffic)
    {
        return $traffic / GB;
    }
}

// 文件大小转换
if ( ! function_exists('formatBytes')) {
    function formatBytes($bytes, $precision = 2)
    {
        $units = ['B', 'KB', 'MB', 'GB', 'TB'];
        $bytes = max($bytes, 0);
        $pow   = floor(($bytes ? log($bytes) : 0) / log(KB));
        $pow   = min($pow, count($units) - 1);
        $bytes /= KB ** $pow;

        return round($bytes, $precision) . ' ' . $units[$pow];
    }
}

// 秒转时间
if ( ! function_exists('seconds2time')) {
    function seconds2time($seconds)
    {
        $day    = floor($seconds / Day);
        $hour   = floor(($seconds % Day) / Hour);
        $minute = floor((($seconds % Day) % Hour) / Minute);
        if ($day > 0) {
            return $day . '天' . $hour . '小时' . $minute . '分';
        }

        if ($hour != 0) {
            return $hour . '小时' . $minute . '分';
        }

        return $minute . '分';
    }
}

// 过滤emoji表情
if ( ! function_exists('filterEmoji')) {
    function filterEmoji($str)
    {
        $str = preg_replace_callback(
            '/./u',
            static function (array $match) {
                return strlen($match[0]) >= 4 ? '' : $match[0];
            },
            $str
        );

        return $str;
    }
}

// 获取系统设置
if ( ! function_exists('sysConfig')) {
    function sysConfig($name)
    {
        $ret = Cache::tags('sysConfig')->get($name);
        if (is_null($ret)) {
            return Helpers::cacheSysConfig($name);
        }

        return $ret;
    }
}