<?php
/**
 * 通用函数库
 */

use Hashids\Hashids;

/**
 * json响应成功
 * @param mixed $data 数据
 * @param string $message 消息
 * @return mixed
 */
function json_success($data, $message = '操作成功')
{
    $handshake = '';
    $data = [
        'code' => 200,
        'message' => $message,
        'data' => $data,
        'handshake' => $handshake,
    ];

    return response()->json($data);
}

/**
 * json响应失败
 * @param string $message 消息
 * @param int $code 代码
 * @return \Illuminate\Http\JsonResponse
 */
function json_fail($message, $code = 500, $data = [])
{
    $handshake = '';
    $data = [
        'code'    => $code,
        'message' => $message,
        'data'    => $data,
        'handshake' => $handshake,
    ];

    return response()->json($data);
}

/**
 * 生成密码.
 * @param string $plain 明文密码.
 * @param string $salt 盐.
 * @return string
 */
function generatePassword($plain, $salt)
{
    return md5(md5($plain) . $salt);
}

/**
 * 随机生成字符串
 * @param int $length 长度
 * @param int $numeric 纯数字
 * @return string
 */
function random($length, $numeric = 0) : string
{
    if (version_compare(PHP_VERSION, '4.2.0', '<')) {
        mt_srand((double)microtime() * 1000000);
    } else {
        mt_srand();
    }
    $seed = base_convert(md5(print_r($_SERVER, 1) . microtime()), 16, $numeric ? 10 : 35);
    $seed = $numeric ? (str_replace('0', '', $seed) . '012340567890') : ($seed . 'zZ' . strtoupper($seed));
    $hash = '';
    $max = strlen($seed) - 1;
    for ($i = 0; $i < $length; $i++) {
        $hash .= $seed[mt_rand(0, $max)];
    }
    return $hash;
}

/**
 * 格式化页码入参
 * @param $page
 * @return int
 */
function format_page($page)
{
    $page = intval($page);
    if ($page <= 0) {
        $page = 1;
    }
    if ($page > PHP_INT_MAX) {
        $page = PHP_INT_MAX;
    }

    return $page;
}

/**
 * 加密ID.
 * @param $id
 * @param int $length 长度
 * @return string
 */
function hashEncodeId($id, $length = 6)
{
    $hashids = new Hashids(config('hashids.salt', ''), 6);

    return $hashids->encode($id);
}

/**
 * 解密ID.
 * @param $str
 * @return string
 */
function hashDecodeId($str)
{
    $hashids = new Hashids(config('hashids.salt', ''), 6);
    $arr = $hashids->decode($str);

    return implode('', $arr);
}

/**
 * 生成订单流水号、可指定前缀
 * @param string $prefix
 * @return string
 */
function createOrderSn($prefix = '', $mark = '')
{
    if (strlen($mark) <= 2 && !empty($mark)) {
        $prefix .= '0' . $mark;
    } else {
        $prefix .= $mark;
    }
    return $prefix . date('YmdHis') . mt_rand(1111, 9999);
}

/**
 * 检测支付链接协议
 *
 * @param $payUrl
 * @return mixed|string
 */
function checkPayUrl($payUrl) {
    if (strpos($payUrl, 'alipays://') !== false) {
        $payUrl = 'https://r.tool.py163.xyz/dk.html?_r_=' . urlencode($payUrl);
    }

    return $payUrl;
}

/**
 * 生成key
 *
 * @return string
 */
function createKey()
{
    $pwd = '';
    for ($i = 0; $i < 10; $i++) {
        $pwd .= chr(mt_rand(33, 126));
    }

    return md5($pwd . time());
}

/**
 * 签名
 *
 * @param $data
 * @param $publicKey
 * @return string
 */
function build_sign($data, $publicKey)
{
    ksort($data);
    $md5str = "";
    foreach ($data as $key => $val) {
        $md5str = $md5str . $key . "=" . $val . "&";
    }
    $md5str = strtoupper(md5($md5str . 'key=' . $publicKey));

    return $md5str;
}