<?php

use app\common\library\EthSign;
use fast\Random;

/**
 * 生成随机hash值
 * @param int $uid
 * @return string
 */
function randTxHash(int $uid): string
{
    return Random::uuid();
}

/**
 * 签名校验
 * @param string $msg
 * @param $sign
 * @param $address
 * @return bool
 */
function checkSign(string $msg, $sign, $address): bool
{
//        return true; // 调试
    if (empty($msg) || empty($sign) || empty($address)) {
        return false;
    }
    $ethSign = new EthSign();
    try {
        return $ethSign->verifySign($msg, $sign, $address);
    } catch (\Exception $e) {
        return false;
    }
}

/**
 * 获取全部配置
 * @param string $msg
 * @return string
 */
function getAllConfig(): array
{
    return (new \app\common\model\Config())->where('group', 'basic')->column('name,value');
}


/**
 * 获取单独配置
 * @param string $msg
 * @return string
 */
function getConfig(string $name): string
{
    return (new \app\common\model\Config())->where('name', $name)->value('value');
}

//获取语言
function getLangKey( $lan = 'zh'): int
{
    $toLang = ['zh' => 0, 'en' => 1];
    return $toLang[$lan];
}
//判断是否是erc20地址
function isErc20AddressValid($address) {
    // 去掉地址的 "0x" 前缀
    $address = trim($address);
    if (substr($address, 0, 2) == '0x') {
        $address = substr($address, 2);
    }

    // 检查地址是否符合以太坊地址的基本格式
    return preg_match('/^[0-9a-fA-F]{40}$/', $address) === 1;
}

//判断绝对路径
function isHttpOrHttps($url) {
    return strpos($url, 'http://') === 0 || strpos($url, 'https://') === 0;
}