package alipaycli

import (
	"context"
	"fmt"
	"github.com/go-pay/gopay"
	"github.com/go-pay/gopay/alipay"
	"net/http"
	"service/bizcommon/util"
	"service/library/configcenter"
	"service/library/logger"
	"time"
)

const (
	DefaultOrderTimeoutSeconds = 900 // 默认订单超时时间，单位: s
)

var defaultAlipayClient *AlipayClient

func GetDefaultAlipayClient() *AlipayClient {
	return defaultAlipayClient
}

type AlipayClient struct {
	*alipay.Client
}

func Init(cfg *configcenter.AlipayClientConfig) (err error) {
	alipayCli, err := alipay.NewClient(cfg.Appid, cfg.PrivateKey, true)
	if err != nil {
		logger.Error("NewClient fail, cfg: %v, err: %v", util.ToJson(cfg), err)
		return
	}
	alipayCli.SetNotifyUrl(cfg.NotifyUrl)

	defaultAlipayClient = &AlipayClient{
		Client: alipayCli,
	}
	return
}

// 解析回调参数
func (c *AlipayClient) ParseNotify(req *http.Request) (notify gopay.BodyMap, err error) {
	// 解析参数
	notifyTmp, err := alipay.ParseNotifyToBodyMap(req)
	if err != nil {
		logger.Error("ParseNotifyToBodyMap fail, req: %v, err: %v", util.ToJson(req), err)
		return
	}
	logger.Info("Alipay ParseNotify, %v", util.ToJson(notifyTmp))
	// 验签
	ok, err := alipay.VerifySign("MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl9Pj5j6cNRdaDyWTWWFkcBViDqw/py1bDrqe7VykND1JywgLsFogeKGG0YhJfTfEeExAlGlP2DUV7z0uc8QhCMF7N+qdfXNb/RemFIpSs71i9kkaFIJEl20JnWipps96LwZLDpNRck3Nho/Xnbs4wuft3sQtd7T0sB2zEYyl7OyuTqehcoz3uAQp0JOYBosVPpgofaD6BN2RSZQ33QvqS37w3xHLif8P7hfYXdeIe+JxeHmchzQK22dRzJinYfU+pKE5J2Wm+dq1l3/ls4w8Xc3RyqvvW2UMx2lOMtSg2WWXDDi1skmHn/l1BbBP/uogNq4Avf50eoZ1UE6JxPrZpQIDAQAB", notifyTmp)
	if err != nil {
		logger.Error("VerifySign fail, bm: %v, err: %v", util.ToJson(notifyTmp), err)
		return
	}
	if !ok {
		logger.Error("VerifySign fail, not ok, bm: %v", util.ToJson(notifyTmp))
		return
	}
	notify = notifyTmp
	return
}

// 支付宝 app支付
type AppPayParam struct {
	OutTradeNo     string // 商家订单id，我们自己的订单id
	Subject        string // 主题
	TotalAmount    int64  // 金额，单位：分
	TimeOutSeconds int    // 订单有效时间，单位：秒
}

func (c *AlipayClient) AppPay(ctx context.Context, param *AppPayParam) (alipayAppParamStr string, err error) {
	if param.TimeOutSeconds <= 0 {
		param.TimeOutSeconds = DefaultOrderTimeoutSeconds
	}
	bm := gopay.BodyMap{
		"out_trade_no": param.OutTradeNo,
		"subject":      param.Subject,
		"total_amount": fmt.Sprintf("%.2f", float64(param.TotalAmount)/100.0),
		"time_expire":  time.Now().Add(time.Second * time.Duration(param.TimeOutSeconds)).Format("2006-01-02 15:04:05"),
		"notify_url":   c.NotifyUrl,
	}
	alipayAppParamStr, err = c.TradeAppPay(ctx, bm)
	if err != nil {
		return
	}
	logger.Info("alipay TradeAppPay param: %v", alipayAppParamStr)
	return
}

// 支付宝 手机web支付
type WapPayParam struct {
	OutTradeNo     string // 商家订单id，我们自己的订单id
	Subject        string // 主题
	TotalAmount    int64  // 金额，单位：分
	TimeOutSeconds int    // 订单有效时间，单位：秒
	ReturnUrl      string // 支付宝return_url
}

func (c *AlipayClient) WapPay(ctx context.Context, param *WapPayParam) (alipayWapParamStr string, err error) {
	if param.TimeOutSeconds <= 0 {
		param.TimeOutSeconds = DefaultOrderTimeoutSeconds
	}
	bm := gopay.BodyMap{
		"out_trade_no": param.OutTradeNo,
		"subject":      param.Subject,
		"total_amount": fmt.Sprintf("%.2f", float64(param.TotalAmount)/100.0),
		"time_expire":  time.Now().Add(time.Second * time.Duration(param.TimeOutSeconds)).Format("2006-01-02 15:04:05"),
		"notify_url":   c.NotifyUrl,
	}
	if len(param.ReturnUrl) > 0 {
		bm["return_url"] = param.ReturnUrl
	}
	alipayWapParamStr, err = c.TradeWapPay(ctx, bm)
	if err != nil {
		return
	}
	logger.Info("alipay TradeWapPay param: %v", alipayWapParamStr)
	return
}