package service

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"github.com/smartwalle/alipay/v3"
	wxcore "github.com/wechatpay-apiv3/wechatpay-go/core"
	"github.com/wechatpay-apiv3/wechatpay-go/services/payments/h5"
	"github.com/wechatpay-apiv3/wechatpay-go/services/payments/jsapi"
	"github.com/wechatpay-apiv3/wechatpay-go/services/refunddomestic"
	"log"
	"net/http"
	"qnc-server/config"
	"qnc-server/db"
	"qnc-server/global"
	"qnc-server/model/model"
	"qnc-server/utils"
)

type OrderService struct {
}

func (a *OrderService) QueryConsumedOrder(userid uint, productEn string) (payOrder model.PayOrder, err error) {
	err = db.DB.Joins("JOIN product ON product.id = pay_order.product_id").Where("pay_order.userid = ? AND pay_order.pay_status = ? AND pay_order.has_consumed = ? AND product.product_en = ?", userid, model.PayStatusSuccess, model.NotConsumed, productEn).First(&payOrder).Error
	return
}

// 付款消费
func (a *OrderService) OrderConsumed(payOrder model.PayOrder) {
	payOrder.HasConsumed = 1
	err := db.DB.Save(&payOrder).Error
	if err != nil {
		log.Printf("消费订单失败：%v", err)
	}
}

// 失效并退款
func (a *OrderService) OrderFailure(payOrder model.PayOrder) {
	payOrder.HasConsumed = 2
	err := db.DB.Save(&payOrder).Error
	if err != nil {
		log.Printf("失效订单失败：%v", err)
	}
}
func (a *OrderService) GetList(pageSize int, pageNum int, userId uint) (list []model.PayOrder, err error) {
	offset := (pageNum - 1) * pageSize
	result := db.DB.Preload("Product").Where("userid = ? AND pay_status IN ?", userId, []string{model.PayStatusSuccess, model.PayStatusRefund, model.PayStatusUnderRefund}).Order("id desc").Limit(pageSize).Offset(offset).Find(&list)
	if result.Error != nil {
		return list, result.Error
	}
	return list, nil
}
func (a *OrderService) GetOrderByid(id uint) (order *model.PayOrder, err error) {
	order = &model.PayOrder{}
	err = db.DB.Preload("Product").Where("id = ?", id).First(order).Error
	if err != nil {
		return
	}
	return
}

// 微信小程序或公众号
func (a *OrderService) WechatJSAPIPrepay(appid string, mchID string, product model.Product, outTradeNo string, amount int64, openid string, platform string, client *wxcore.Client) (resp *jsapi.PrepayWithRequestPaymentResponse, err error) {
	prepayReq := jsapi.PrepayRequest{
		Appid:       &appid,
		Mchid:       &mchID,
		Description: wxcore.String(product.ProductName),
		OutTradeNo:  wxcore.String(outTradeNo), // 唯一的订单号
		Attach:      wxcore.String(product.Description),
		NotifyUrl:   wxcore.String(fmt.Sprintf("%s/%s", config.ConfigData.WxPay.NotifyURL, platform)), // 回调地址，需替换为实际地址
		Amount: &jsapi.Amount{
			Total: wxcore.Int64(amount), // 订单金额，单位为分
		},
		Payer: &jsapi.Payer{
			Openid: wxcore.String(openid), // 用户的 OpenID，通过前端传入
		}}
	// 发起预支付请求
	svc := jsapi.JsapiApiService{Client: client}
	resp, _, err = svc.PrepayWithRequestPayment(ctx, prepayReq)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// 浏览器H5
func (a *OrderService) WechatH5Prepay(appid string, mchID string, product model.Product, outTradeNo string, amount int64, userIP string, client *wxcore.Client) (resp *h5.PrepayResponse, err error) {
	prepayReq := h5.PrepayRequest{
		Appid:       wxcore.String(appid),
		Mchid:       wxcore.String(mchID),
		Description: wxcore.String(product.ProductName),
		OutTradeNo:  wxcore.String(outTradeNo), // 唯一的订单号
		Attach:      wxcore.String(product.Description),
		NotifyUrl:   wxcore.String(config.ConfigData.WxPay.NotifyURL), // 回调地址，需替换为实际地址
		Amount: &h5.Amount{
			Total: wxcore.Int64(amount), // 订单金额，单位为分
		},
		SceneInfo: &h5.SceneInfo{
			PayerClientIp: wxcore.String(userIP), // 可通过前端传入
			H5Info: &h5.H5Info{
				Type: wxcore.String("Wap"),
				//AppName: wxcore.String("全能查"),
				//AppUrl:  wxcore.String("https://你的域名"),
			},
		},
	}

	// 发起预支付请求
	svc := h5.H5ApiService{Client: client}
	resp, _, err = svc.Prepay(context.Background(), prepayReq)
	if err != nil {
		return nil, err
	}
	return resp, nil
}
func (a *OrderService) WeChatRefund(order model.PayOrder) (err error) {
	var client *wxcore.Client
	switch order.Platform {
	case model.PlatformMPWEIXIN:
		client = global.GlobalData.PayClient
	case model.PlatformMPH5:
		client = global.GlobalData.PayH5Client
	}
	outRefundNo := utils.GenerateOrderRefundNumber()
	svc := refunddomestic.RefundsApiService{Client: client}
	resp, result, err := svc.Create(ctx,
		refunddomestic.CreateRequest{
			OutTradeNo:  wxcore.String(order.OutTradeNo),
			OutRefundNo: wxcore.String(outRefundNo), //退款单号
			NotifyUrl:   wxcore.String(fmt.Sprintf("%s/%s", config.ConfigData.WxPay.RefundNotifyURL, order.Platform)),
			Amount: &refunddomestic.AmountReq{
				Currency: wxcore.String("CNY"),
				Refund:   wxcore.Int64(order.Amount),
				Total:    wxcore.Int64(order.Amount),
			},
		},
	)
	if err != nil {
		// 处理错误
		log.Printf("微信订单申请退款错误:%s", err)
		return errors.New(fmt.Sprintf("微信订单申请退款错误:%s", err))
	} else {
		// 处理返回结果
		log.Printf("微信订单申请退款 response status=%d resp=%s", result.Response.StatusCode, resp)
		order.PayStatus = model.PayStatusUnderRefund
		err = db.DB.Save(order).Error
		if err != nil {
			log.Printf("微信订单退状态修改失败 underRefund Error:%v", err)
			return errors.New(fmt.Sprintf("微信订单退状态修改失败 underRefund Error:%v", err))
		}
		return nil
	}
}

// 创建投诉回调URL
func (a *OrderService) RegisterComplaintNotificationURL(client *wxcore.Client, platform string) {
	url := "https://api.mch.weixin.qq.com/v3/merchant-service/complaint-notifications"

	// 请求体数据
	requestBody := map[string]string{
		"url": fmt.Sprintf("%s/%s/pay/complaint_callback/%s", config.ConfigData.Server.Domain, config.ConfigData.Server.Prefix, platform), // 你的回调URL
	}

	// 将请求体序列化为 JSON
	requestBodyJson, err := json.Marshal(requestBody)
	if err != nil {
		log.Fatalf("【%s创建投诉回调URL】请求体JSON序列化失败: %v", platform, err)
	}

	// 发送POST请求
	result, err := client.Post(context.Background(), url, requestBodyJson)
	if err != nil {
		// 尝试解析响应内容，获取详细错误信息
		var response map[string]interface{}
		if err := json.NewDecoder(result.Response.Body).Decode(&response); err != nil {
			log.Fatalf("【%s创建投诉回调URL】解析错误响应失败: %v", platform, err)
		}
		// 检查错误代码和信息
		if responseCode, ok := response["code"].(string); ok && responseCode == "PARAM_ERROR" {
			if responseMessage, ok := response["message"].(string); ok && responseMessage == "数据已存在" {
				log.Printf("【%s创建投诉回调URL】数据已存在，不需要重新创建: %+v\n", platform, response)
				return
			}
		}
		log.Fatalf("【%s创建投诉回调URL】请求失败: %v", platform, err)
	}

	// 处理响应
	defer result.Response.Body.Close()

	// 检查请求状态
	if result.Response.StatusCode != http.StatusOK {
		log.Fatalf("【%s创建投诉回调URL】请求失败，状态码: %v", platform, result.Response.StatusCode)
	}

	// 解析响应
	var response map[string]interface{}
	if err := json.NewDecoder(result.Response.Body).Decode(&response); err != nil {
		log.Fatalf("【%s创建投诉回调URL】解析响应失败: %v", platform, err)
	}

	log.Printf("【%s创建投诉回调URL】投诉通知回调URL创建成功: %+v\n", platform, response)
	return
}

func (a *OrderService) AliRefund(ctx context.Context, payOrder model.PayOrder) error {
	// 创建退款请求参数
	refund := alipay.TradeRefund{}
	refund.OutTradeNo = payOrder.OutTradeNo
	refund.RefundAmount = utils.ConvertCentsToYuan(int(payOrder.Amount))            // 退款金额，单位元
	refund.OutRequestNo = fmt.Sprintf("ali_refund_%s", utils.GenerateOrderNumber()) // 生成的唯一退款请求号

	// 发起退款请求
	refundResp, err := global.GlobalData.AliPayClient.TradeRefund(ctx, refund)
	if err != nil {
		log.Printf("【阿里支付退款】退款请求错误：%v", err)
		return fmt.Errorf("refund request failed")
	}

	if refundResp.IsSuccess() {
		// 更新订单状态
		err = db.DB.Model(&model.PayOrder{}).Where("out_trade_no = ?", payOrder.OutTradeNo).Updates(model.PayOrder{
			PayStatus: model.PayStatusRefund,
		}).Error
		if err != nil {
			log.Printf("【阿里支付退款】订单更新错误：%v", err)
			return fmt.Errorf("order update failed")
		}
		return nil
	} else {
		log.Printf("【阿里支付退款】退款失败：%v", refundResp.SubMsg)
		return fmt.Errorf("refund failed: %s", refundResp.SubMsg)
	}
}