<?php
/**
 * Created by PhpStorm.
 * User: stanley-king
 * Date: 2018/12/12
 * Time: 11:13 AM
 */

namespace openapi;

class Convertor
{
    private $fields = [];

    public function __construct($fields)
    {
        $this->fields = $fields;
        //['appid','convert_sn','batch_code','commonid','time','appkey','mobile','convert_type'];
    }

    public function exist($convert_sn,$appid)
    {
        $model = Model();
        $items = $model->table('goods_convert')->where(['convert_sn' => $convert_sn, 'appid' => $appid])->master(true)->select();
        return !empty($items);
    }

    public function add_user($appid,$convert_sn,$mobile)
    {
        $data = [];
        $data['appid'] = $appid;
        $data['convert_sn'] = $convert_sn;
        $data['convert_type'] = 'user';
        $data['add_time'] = time();
        $data['user_mobile'] = $mobile;

        $model = Model();
        $insertid = $model->table('goods_convert')->insert($data);
        return ($insertid > 0);

    }

    public function add_fcode($appid,$convert_sn,$batch_code,$commonid,$fcode,$mobile)
    {
        $data = [];
        $data['appid'] = $appid;
        $data['convert_sn'] = $convert_sn;
        $data['convert_type'] = 'fcode';
        $data['batch_code'] = $batch_code;
        $data['goods_commonid'] = $commonid;
        $data['add_time'] = time();
        $data['goods_fcode'] = $fcode;
        $data['user_mobile'] = $mobile;

        $model = Model();
        $insertid = $model->table('goods_convert')->insert($data);
        return ($insertid > 0);
    }


    private function presign_body($input)
    {
        ksort($input);
        reset($input);

        $params = [];
        foreach ($input as $key => $val)
        {
            if(in_array($key,$this->fields)) {
                $params[] = "{$key}={$val}";
            }
        }

        return implode('&',$params);
    }

    public function verify($input)
    {
        $signed = $input['signed'];
        $appid  = $input['appid'];
        if(empty($signed) || empty($appid)) return false;

        $signed = base64_decode($signed);
        $body = $this->presign_body($input);

        return KeyManager::instance()->verify($appid,$body,$signed);
    }
}