<?php

declare(strict_types=1);

namespace app\logics;

use app\model\Sms;

/**
 * 用户登陆权限验证
 */
class SmsLogic
{
    /**
     * 验证码生成
     */
    private function getCode($length){
        $s = '9876543210';
        $code = '';
        for($i=0;$i<$length;$i++){
            $r = rand(0,9);
            $code .=$s[$r];
        }

        return $code;
    }

    /**
     * 发送验证码
     */
    public function sendSms($phone, $purpose, $content)
    {
        $code = $this->getCode(6);
        $data = [
            'phone'=>$phone,
            'code'=>$code,
            'effective_time'=>time()+60*15,
            'purpose'=>$purpose,
        ];

        $content = str_replace(['%code%', '%CODE%'], $code, $content);
        $rs = sendSms($phone, $content);
        if ($rs === false) return false;

        // 验证码保存
        Sms::create($data);

        return true;
    }

    /**
     * 验证码验证
     */
    public function checkCode($phone, $purpose, $code)
    {
        $data = Sms::where(['phone'=>$phone, 'purpose'=>$purpose])->order('id desc')->find();
        if($data['code'] != $code || $data['state'] == 1) return false;
        $data->state = 1;
        $data->save();

        return true;
    }
}