<?php
// +------------------------------------------------+
// |http://www.cjango.com                           |
// +------------------------------------------------+
// | 修复BUG不是一朝一夕的事情，等我喝醉了再说吧！  |
// +------------------------------------------------+
// | Author: 小陈叔叔 <Jason.Chen>                  |
// +------------------------------------------------+
namespace app\common\service;

use app\common\model\Sms as SmsModel;
use app\common\validate\Sms as SmsValidate;
use think\Config;
use tools\Str;

class Sms extends _Init
{

    public static function send($mobile)
    {
        $code = Str::number(1, 9999);
        $data = [
            'mobile' => $mobile,
            'code'   => $code,
        ];
        $validate = new SmsValidate();

        if (!$validate->check($data)) {
            return $validate->getError();
        }

        $res = SmsModel::create($data);

        if ($res) {
            $result = self::ali($mobile, $code);
            if ($result) {
                return true;
            } else {
                return '发送失败';
            }
        } else {
            return '验证码发送失败';
        }
    }

    public static function check($mobile, $code)
    {
        $data = [
            'mobile' => $mobile,
            'code'   => $code,
        ];

        $res = SmsModel::where('mobile', $mobile)->where('status', 0)->order('id desc')->find();

        if ($res && $res['code'] == $code) {
            $res->save(['status' => 1]);
            return true;
        } else {
            return '验证码有误';
        }
    }

    private static function ali($mobile, $code)
    {
        $config = Config::get('sms_config');
        $params = [
            'appid'       => $config['appid'],
            'timestamp'   => time(),
            'receive'     => $mobile,
            'tpl_id'      => 'SMS_85730027',
            'sign_method' => '身份验证',
            'params'      => '{"code":"' . $code . '","product":"【超级助手】"}',
        ];
        ksort($params);
        $sign           = http_build_query($params);
        $sign           = urldecode($sign) . '&secret=' . $config['secret'];
        $params['sign'] = strtoupper(md5($sign));
        $res            = json_decode(http('http://api.cjango.com/sms/send?' . http_build_query($params), 'GET'), true);
        if ($res && $res['code'] == 0) {
            return true;
        } else {
            return false;
        }
    }
}