<?php
/**
 * Created by PhpStorm.
 * User: Elton
 * Date: 2019/4/12
 * Time: 17:46
 */

namespace app\common\service;


use fast\Http;
use think\Config;

class ShortMessageService
{
    const CODE_ERROR = 0;
    const CODE_SUCCESS = 1;
    const SEND_SUCCESS_CODE = 1000;
    protected static $instance;

    public static function instance(){
        if (is_null(self::$instance)) {
            self::$instance = new static();
        }
        return self::$instance;
    }


    /**
     * 发送单条短信
     * @param $content   短信内容
     * @param $mobi      手机号码
     * @return bool
     * @throws \think\exception\DbException
     */
    public function singleMsg($content, $mobi)
    {
        $content = trim($content);
        if (empty($content)) {
            return json_encode(['code'=> self::CODE_ERROR, 'msg'=>'发送内容不能为空']);
        }

        if (empty($mobi) || !preg_match("/^1[345789]\d{9}$/", $mobi)) {
            return json_encode(['code'=> self::CODE_ERROR, 'msg'=>'手机格式错误']);
        }

        $data = Http::post(
            Config::get('site.shortsms_url'),
            [
                'sid' => Config::get('site.shortsms_sid'),
                'mobi' => $mobi,
                'sign' => md5(Config::get('site.shortsms_cpid') . Config::get('site.shortsms_key')),
                'msg' => urlencode(base64_encode($content))
            ]
        );
        LogService::info('[ Shortmessage ] [ singleMsg ]' . $data);

        $ret = explode('|', $data);
        if ($ret[0] == self::SEND_SUCCESS_CODE) {
            LogService::info('[ Shortmessage ] [ singleMsg ] [ Success ]' . $content);
            return json_encode(['code' => self::CODE_SUCCESS, 'msg' => '发送成功']);
        } else {
            LogService::error('[ Shortmessage ] [ singleMsg ] [ Fail ]' . $data);
            LogService::error('[ Shortmessage ] [ singleMsg ] [ Fail ]' . $content);
            return json_encode(['code' => self::CODE_ERROR, 'msg' => '发送失败']);
        }
    }

    /**
     * 发送单条短信
     * @param $content   短信内容
     * @param $mobi      手机号码
     * @return bool
     * @throws \think\exception\DbException
     */
    public function singleShortMsg($content, $mobi)
    {
        $content = trim($content);
        if (empty($content)) {
            return ['code'=> self::CODE_ERROR, 'msg'=>'发送内容不能为空'];
        }

        if (empty($mobi) || !preg_match("/^1[345789]\d{9}$/", $mobi)) {
            return ['code'=> self::CODE_ERROR, 'msg'=>'手机格式错误'];
        }

        $data = Http::post(
            Config::get('site.shortsms_url'),
            [
                'sid' => Config::get('site.shortsms_sid'),
                'mobi' => $mobi,
                'sign' => md5(Config::get('site.shortsms_cpid') . Config::get('site.shortsms_key')),
                'msg' => urlencode(base64_encode($content))
            ]
        );
        LogService::info('[ Shortmessage ] [ singleMsg ]' . $data);

        $ret = explode('|', $data);
        if ($ret[0] == self::SEND_SUCCESS_CODE) {
            LogService::info('[ Shortmessage ] [ singleMsg ] [ Success ]' . $content);
            return ['code' => self::CODE_SUCCESS, 'msg' => '发送成功'];
        } else {
            LogService::error('[ Shortmessage ] [ singleMsg ] [ Fail ]' . $content);
            return ['code' => self::CODE_ERROR, 'msg' => '发送失败'];
        }
    }

    /**
     * 生成短信验证码
     * @param int $length
     * @return int
     */
    public function generateSMSCode($length = 4)
    {
        $min = pow(10, ($length - 1));
        $max = pow(10, $length) -1 ;
        return rand($min, $max);
    }

}