<?php
namespace addons\QiJuhe\common\service;

use addons\QiJuhe\common\api\Api;
use addons\QiJuhe\common\models\SettingModel;
use addons\QiJuhe\common\models\SupplysModel;
use yii\base\BaseObject;

class ApiService extends BaseObject
{
    public $mall_id;
    public $supply_id;

    /**
     * @var array[Api]
     */
    public static $client = [];

    /**
     * @var SettingModel
     */
    protected $model;

    public function __construct($config = [])
    {
        parent::__construct($config);
        !empty($config['supply_id']) && $this->model = SupplysModel::findOne(['id' => $config['supply_id']]);
    }

    /**
     * 获取调用接口API
     *
     * @param integer $mall_id
     * @param integer $supply_id
     * @return Api
     */
    public static function getConnect($mall_id = 0, $supply_id = 0): Api
    {
        $model = null;
        if (!empty($supply_id) && is_null($model)) {
            $model = SupplysModel::find()->cache(5)->where(['id' => $supply_id])->one();
        }
        if (!empty($mall_id) && is_null($model)) {
            $model = SupplysModel::find()->cache(5)->where(['mall_id' => $mall_id])->orderBy('id asc')->one();
        }

        if (self::_isInvalid($model)) {
            return self::$client[$model->id];
        }

        self::$client[$model->id] = $client = new Api([
            'mall_id' => $model->mall_id,
            'supply_id' => $model->id,
            'app_key' => $model->app_key,
            'app_secret' => $model->app_secret,
            'app_host' => $model->app_host,
            'token' => self::getToken($model),
        ]);

        return $client;
    }

    /**
     * 重新获取token
     *
     * @param SupplysModel $model
     * @return string
     */
    private static function getToken(SupplysModel $model)
    {
        // 过期或者不存在，重新获取
        $api = new Api([
            'mall_id' => $model->mall_id,
            'supply_id' => $model->id,
            'app_key' => $model->app_key,
            'app_secret' => $model->app_secret,
            'app_host' => $model->app_host,
        ]);
        try {
            $data = $api->getToken();
            SupplysModel::updateAll([
                'token' => $data['token'],
                'expire_time' => ($data['expiresAt'] / 1000) - 3600,
            ], ['id' => $model->id]);
            return $data['token'];
        } catch (\Exception $e) {
            \Yii::error($e);
            return false;
        }
    }

    /**
     * 通过model判断是否有效
     *
     * @param SupplysModel $model
     * @return boolean
     */
    private static function _isInvalid(SupplysModel $model)
    {
        return (
            isset(self::$client[$model->id]) 
            && bcsub($model->expire_time, 86400) > time()
            && $model->token
        )
            ? true
            : false;
    }
}