<?php

namespace addons\StarChain\common\services;

use addons\StarChain\common\api\BaseApi;
use addons\StarChain\common\models\Setting;
use Exception;
use yii\base\BaseObject;

/**
 * BaseService
 */
class BaseService extends BaseObject
{
    /**
     * MallId
     *
     * @var integer
     */
    public $mall_id;

    /**
     * Api
     *
     * @var BaseApi
     */
    protected $api;

    /**
     * Error
     *
     * @var string
     */
    public $error;

    /**
     * 初始化
     *
     * @param array $config
     */
    public function __construct($config)
    {
        parent::__construct($config);

        $this->getApi();
    }

    /**
     * 获取API
     *
     * @return boolean|void
     */
    public function getApi()
    {
        if ($this->mall_id) {
            $setting = Setting::getSetting($this->mall_id);
            // if (empty($setting)) return $this->error('还未配置设置'); 

            $setting && $this->api = BaseApi::getInstance([
                'app_key' => $setting['app_key'],
                'app_secret' => $setting['app_secret'],
            ]);
        }
    }

    /**
     * 执行Api
     *
     * @param string $fun
     * @param string $params
     * @return array
     */
    public function exApi($fun, $params)
    {
        try {
            if (empty($this->api)) {
                throw new Exception('未设置APPKEY');
            }
            if (method_exists($this->api, $params)) {
                throw new Exception('API方法不存在');
            }
            return $this->api->$fun($params);
        } catch (Exception $e) {
            return $this->error($e->getMessage());
        }
    }
    
    public function callApi(callable $fun)
    {
        try {
            if (empty($this->api)) {
                throw new Exception('未设置APPKEY');
            }
            return call_user_func($fun, $this->api);
        } catch (Exception $e) {
            return $this->error($e->getMessage());
        }
    }

    /**
     * 错误返回
     *
     * @param string $msg
     * @return boolean
     */
    public function error($msg = '')
    {
        $this->error = $msg;
        return false;
    }

    /**
     * 获取错误信息
     *
     * @return string
     */
    public function getErrorMsg()
    {
        return $this->error;
    }

    /**
     * @param array $params
     * @return int
     */
    public function getLimit(array $params = [])
    {
        return $params['limit'] ?? 20;
    }
}