package front

import (
	"PaymentCenter/app/constants/common"
	"PaymentCenter/app/constants/errorcode"
	"PaymentCenter/app/models/paychannelmodel"
	"PaymentCenter/app/services"
	"PaymentCenter/app/third/paymentService"
	"bytes"
	"encoding/json"
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/go-pay/gopay"
	"github.com/go-pay/gopay/alipay"
	"github.com/go-pay/gopay/wechat/v3"
	"github.com/qit-team/snow-core/log/logger"
	"io"
	"strconv"

	"net/http"
)

// WxCallback	微信支付回调
func WxCallback(c *gin.Context) {
	saveLogger(c, "wx")
	payChannelId := c.Param("payChannelId")
	logger.Info(c, "WxCallback-回调数据payChannelId", payChannelId)
	if payChannelId == "" {
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	// 查询应用下的支付配置
	var payChannelModel paychannelmodel.PayChannel
	payChannelIdInt, _ := strconv.Atoi(payChannelId)
	payChannelModel.Id = int64(payChannelIdInt)
	code := services.PayChannelGet(&payChannelModel)
	if code == errorcode.PayChannelNotFound {
		logger.Error(c, "AliCallback-回调数据未获取到支付配置，404")
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	if payChannelModel.ChannelType != common.PAY_CHANNEL_WECHAT_H5 {
		logger.Error(c, "WxCallback-回调数据解析支付配置错误,查询的数据不是当前渠道")
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	var wxConfig paymentService.WxPay
	err := json.Unmarshal([]byte(payChannelModel.ExtJson), &wxConfig)
	if err != nil {
		logger.Error(c, "WxCallback-回调数据解析支付配置错误", fmt.Sprintf("错误原因：%s", err.Error()))
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	if wxConfig.ApiV3Key == "" || wxConfig.MchId == "" || wxConfig.PrivateKey == "" || wxConfig.SerialNo == "" {
		logger.Error(c, "WxCallback-回调数据解析支付配置错误，解析出来的信息为空")
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	wxConfig.AppId = payChannelModel.AppId

	notifyReq, err := wechat.V3ParseNotify(c.Request)
	if err != nil {
		logger.Error(c, "WxCallback-回调数据验签失败", err.Error())
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	notifyReqJson, _ := json.Marshal(notifyReq)
	logger.Info(c, "WxCallback-解析微信回调请求的参数到 V3NotifyReq 结构体", string(notifyReqJson))
	err = paymentService.WxPayCallBack(notifyReq, wxConfig)
	if err != nil {
		logger.Error(c, "WxCallback-回调执行失败，失败原因：", err.Error())
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	c.JSON(http.StatusOK, &wechat.V3NotifyRsp{Code: gopay.SUCCESS, Message: "成功"})
	return
}

// AliCallback	支付宝支付回调
func AliCallback(c *gin.Context) {
	saveLogger(c, "ALI")
	payChannelId := c.Param("payChannelId")
	logger.Info(c, "AliCallback-回调数据APPID", payChannelId)
	if payChannelId == "" {
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	// 查询应用下的支付配置
	var payChannelModel paychannelmodel.PayChannel
	payChannelIdInt, _ := strconv.Atoi(payChannelId)
	payChannelModel.Id = int64(payChannelIdInt)
	code := services.PayChannelGet(&payChannelModel)
	if code == errorcode.PayChannelNotFound {
		logger.Error(c, "AliCallback-回调数据未获取到支付配置，404")
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	if payChannelModel.ChannelType != common.PAY_CHANNEL_ALIPAY_WEB {
		logger.Error(c, "AliCallback-回调数据解析支付配置错误,查询的数据不是当前渠道")
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	var aliConfig paymentService.AliPay
	err := json.Unmarshal([]byte(payChannelModel.ExtJson), &aliConfig)
	if err != nil {
		logger.Error(c, "AliCallback-回调数据解析支付配置错误", fmt.Sprintf("错误原因：%s", err.Error()))
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	if aliConfig.AlipayPublicCert == "" || aliConfig.PrivateKey == "" || aliConfig.AppPublicCert == "" || aliConfig.AlipayRootCert == "" {
		logger.Error(c, "AliCallback-回调数据解析支付配置错误，解析出来的信息为空")
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}
	aliConfig.AppId = payChannelModel.AppId

	notifyReq, err := alipay.ParseNotifyToBodyMap(c.Request) // c.Request 是 gin 框架的写法
	if err != nil {
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	notifyReqJson, _ := json.Marshal(notifyReq)
	logger.Info(c, "AliCallback-解析支付宝支付异步通知的参数到BodyMap", string(notifyReqJson))
	err = paymentService.ALiCallBack(notifyReq, aliConfig)
	if err != nil {
		logger.Error(c, "AliCallback-回调执行失败，失败原因：", err.Error())
		c.String(http.StatusBadRequest, "%s", "fail")
		return
	}

	c.String(http.StatusOK, "%s", "success")
	return
}

func saveLogger(c *gin.Context, payType string) {
	// 保存请求的方法和URL
	method := c.Request.Method
	url := c.Request.URL.String()

	// 保存请求头
	headers := make(map[string]string)
	for k, v := range c.Request.Header {
		headers[k] = v[0]
	}

	// 保存请求体
	var bodyBytes []byte
	if c.Request.Body != nil {
		bodyBytes, _ = io.ReadAll(c.Request.Body)
	}
	// 由于 io.ReadAll 会将 body 读完，所以需要重新赋值
	c.Request.Body = io.NopCloser(bytes.NewBuffer(bodyBytes))

	// 使用 logger 记录请求信息
	logger.Info(c, "支付回调"+payType, fmt.Sprintf("接受的参数：method: %s , url: %s , headers: %s , body: %s", method, url, headers, string(bodyBytes)))
	c.Next()
}