package kuaishou_mini

import (
	"errors"
	"fmt"
	"git.rosy.net.cn/baseapi/utils"
)

// PreCreateOrder 预下单生成支付信息
func (a *API) PreCreateOrder(param *PreCreateOrderReq) (string, error) {
	if a.appId == "" || a.appSecret == "" {
		return "", errors.New("appId/appSecret 不能为空")
	}

	param.Sign = a.sign(utils.Struct2MapByJson(param))
	result, err := a.AccessAPI2(a.FullUrl(KuaiShouPreCreateOrder), utils.Struct2MapByJson(param))
	if err != nil {
		return "", err
	}

	order := PreCreateOrderResponse{}
	if err := utils.Map2StructByJson(result, &order, false); err != nil {
		return "", err
	}

	if order.Result != 1 {
		return "", errors.New(order.ErrorMsg)
	}

	return order.OrderInfo, nil
}

func (a *API) FullUrl(bashUrl string) string {
	return fmt.Sprintf(bashUrl+"?app_id=%s&access_token=%s", a.appId, a.accessToken)
}