package pay

import (
	"errors"
	"fmt"
	"gitee.com/h79/goutils/pay/client"
	"gitee.com/h79/goutils/pay/common"
	"gitee.com/h79/goutils/pay/constant"
)

// Pay
// 用户下单支付接口
func Pay(charge *common.Charge) (map[string]string, error) {
	err := checkCharge(charge)
	if err != nil {
		return map[string]string{}, err
	}

	client := getPayClient(charge.TradeType)
	if client == nil {
		return map[string]string{}, fmt.Errorf("pay object is null")
	}
	re, err := client.Pay(charge)
	return re, err
}

// PayToClient
// 付款给用户接口
func PayToClient(charge *common.Charge) (map[string]string, error) {
	err := checkCharge(charge)
	if err != nil {
		return nil, err
	}
	client := getPayClient(charge.TradeType)
	if client == nil {
		return map[string]string{}, fmt.Errorf("pay object is null")
	}
	re, err := client.PayToClient(charge)
	return re, err
}

// 验证支付内容
func checkCharge(charge *common.Charge) error {
	if charge.TradeType <= 0 {
		return errors.New("PayMethod不能少于等于0")
	}
	if charge.MoneyFee <= 0 {
		return errors.New("MoneyFee不能少于等于0")
	}
	return nil
}

// getPayClient 得到需要支付的类型
func getPayClient(tradeType int) common.PayClient {
	//如果使用余额支付
	switch tradeType {
	case constant.ALI_WEB:
		return client.DefaultAliWebClient()
	case constant.ALI_APP:
		return client.DefaultAliAppClient()
	case constant.WX_WEB:
		return client.DefaultWxWebClient()
	case constant.WX_APP:
		return client.DefaultWxAppClient()
	case constant.WX_MP:
		return client.DefaultWxMPClient()
	}
	return nil
}