<?php

if (!function_exists('get_access_token')) {

    /**
     * 获取 接口 accessToken
     * @return mixed
     */
    function get_access_token(){

        // 记录缓存, 时效2小时分钟
        $token = get_cache('api_access_token');

        if (empty($token)) {
            $config = config('api_config');
            //
            $url = $config['host_url']."/oauth/token?client_id=".$config['cid']."&client_secret=".$config['cskey'];
            // do post
            $ret = curl_post($url);
            $res = json_decode($ret,true);
            if ($res['access_token']) {
                set_cache('api_access_token', $res['access_token'], 7200);
                $token = $res['access_token'];
            }
        }

        return $token;
    }
}

if (!function_exists('get_target_date')) {
    /**
     * 获取当前时间日期
     * @param $granularity  // 返回当前日期 all = 所有
     * @return array
     */
    function get_target_date($granularity = 'all') {

        $data = [];

        if ($granularity === 'day' || $granularity === 'all') {
            $date = $granularity !== 'all' ? $granularity : 'day';
            $data[$date] = [
                'start_time' => strtotime('today'),
                'end_time' => strtotime('tomorrow - 1 second'),
            ];
        }
        if ($granularity === 'week' || $granularity === 'all') {
            $date = $granularity !== 'all' ? $granularity : 'week';
            $data[$date] = [
                'start_time' => strtotime('this week midnight'),
                'end_time' => strtotime('next week midnight - 1 second'),
            ];
        }
        if ($granularity === 'month' || $granularity === 'all') {
            $date = $granularity !== 'all' ? $granularity : 'month';
            $data[$date] = [
                'start_time' => strtotime(date('Y-m-01 00:00:00')),
                'end_time' => strtotime(date('Y-m-t 23:59:59')),
            ];
        }
        if ($granularity === 'year' || $granularity === 'all') {
            $date = $granularity !== 'all' ? $granularity : 'year';
            $data[$date] = [
                'start_time' => strtotime('first day of January this year'),
                'end_time' => strtotime('first day of January next year - 1 second'),
            ];
        }

        foreach ($data as &$val) {
            $val['c_start_time'] = date("c",$val['start_time']);
            $val['c_end_time'] = date("c",$val['end_time']);
            $val['start_time'] = date("Y-m-d H:i:s",$val['start_time']);
            $val['end_time'] = date("Y-m-d H:i:s",$val['end_time']);
        }
        return $data;
    }
}

if (!function_exists('get_cache')) {

    function get_cache($key){


        return '';
    }
}


if (!function_exists('set_cache')) {

    function set_cache($key, $value,$expire_time = 0)
    {

    }
}

if (!function_exists('config')) {
    /**
     * 获取配置数据
     * @param $key
     * @return array|mixed
     */
    function config($key = 'all') {
        $config = include 'config.php';
        if ($key == 'all') {
            return $config;
        } else {
            return isset($config[$key]) ? $config[$key] : [];
        }
    }
}

if (!function_exists('curl_post')) {
    /**
     * curl请求指定url (post)
     * @param $url
     * @param array $data
     * @return mixed
     */
    function curl_post($url, $data = [])
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        $result = curl_exec($ch);
        curl_close($ch);
        return $result;
    }
}

if (!function_exists('post_token')) {
    /**
     * 模拟POST请求
     * @param string $url 请求地址
     * @param mixed $data 请求数据
     * @param false $useCert 是否引入微信支付证书
     * @param array $sslCert 证书路径
     * @param string $token 请求token
     * @return bool|mixed|string
     */
    function post_token($url, $data = [], $useCert = false, $sslCert = [], $token = '')
    {
        $header = [
            'Content-type: application/json;',
            "access_token: {$token}"
        ];
        $curl   = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        curl_setopt($curl, CURLOPT_HEADER, false);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_POST, TRUE);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        if ($useCert == true) {
            // 设置证书：cert 与 key 分别属于两个.pem文件
            curl_setopt($curl, CURLOPT_SSLCERTTYPE, 'PEM');
            curl_setopt($curl, CURLOPT_SSLCERT, $sslCert['certPem']);
            curl_setopt($curl, CURLOPT_SSLKEYTYPE, 'PEM');
            curl_setopt($curl, CURLOPT_SSLKEY, $sslCert['keyPem']);
        }
        $result = curl_exec($curl);
        if ($result === false) {
            curl_error($curl);
        }
        curl_close($curl);
        return $result;
    }
}

if (!function_exists('dump')) {
    /**
     * 输出数据
     * @param $data     // 待数据
     * @param $is_die   // 是否停止运行
     * @return void
     */
    function dump($data, $is_die = true) {
        var_dump($data);
        if ($is_die) die;
    }
}