package biz

import (
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"strconv"
	"strings"
	"time"
	"xy_sh/internal/config"
	"xy_sh/internal/data/impl"
	"xy_sh/internal/data/model"
	"xy_sh/pkg"
	"xy_sh/pkg/crypto"
	"xy_sh/ymt_v3"

	"gitea.cdlsxd.cn/self-tools/l_request"

	"xy_sh/internal/entities"
)

type OrderStore struct {
	orders    *impl.OrderImpl
	ymtClient *ymt_v3.Client
	cfg       *config.Config
}

func NewOrderStore(orders *impl.OrderImpl, ymtClient *ymt_v3.Client, cfg *config.Config) *OrderStore {
	return &OrderStore{
		orders:    orders,
		ymtClient: ymtClient,
		cfg:       cfg,
	}
}

func (o *OrderStore) CreateOrder(ctx context.Context, req *entities.OrderRequest) (*entities.OrderResponseData, error) {
	var orderInfo model.XyShOrder
	err := o.orders.GetByKey(ctx, "act_order_num", req.ActOrderNum, &orderInfo)
	if err != nil {
		return nil, err
	}
	if orderInfo.ID == 0 {
		orderInfo = model.XyShOrder{
			ActOrderNum: req.ActOrderNum,
			GoodsCode:   req.GoodsCode,
			ActCode:     req.ActCode,
			Account:     req.Account,
			Status:      entities.StatusSuccess,
			CallBackURL: req.CallbackUrl,
			CreatedAt:   time.Now(),
			UpdatedAt:   time.Now(),
		}
	}

	selfPublicIP, err := pkg.GetPublicIP()
	if err != nil {
		selfPublicIP = "120.55.12.245"
	}
	result, err := o.ymtClient.KeyOrder(&ymt_v3.KeyOrderRequest{
		OutBizNo:   req.ActOrderNum,
		ActivityNo: o.cfg.Ymt.ActivityNo,
		Account:    req.Account,
		NotifyURL:  selfPublicIP + ":" + o.cfg.ServerPort + "/callback/notify",
	})
	if err != nil {
		return nil, err
	}
	orderInfo.CouponNo = result.URL
	orderInfo.CouponCode = result.Key
	orderInfo.OrderNo = result.TradeNo
	orderInfo.Status = int32(result.Status)
	var validTime time.Time
	if len(result.ValidEndTime) != 0 {
		validTime, err = time.Parse(time.DateTime, result.ValidEndTime)
		if err != nil {
			return nil, fmt.Errorf("解析失败: %v\n", err)
		}
	}
	orderInfo.ExpireTime = validTime
	if orderInfo.ID == 0 {
		err = o.orders.Add(ctx, &orderInfo)
	}

	if err != nil {
		return nil, err
	}
	return &entities.OrderResponseData{
		OrderNo:    result.TradeNo,
		CouponNo:   result.URL,
		CouponCode: result.Key,
		Status:     o.getStatus(result.Status, result.ValidEndTime, err),
		ExpireTime: result.ValidEndTime,
	}, nil
}

func (o *OrderStore) getStatus(ymtStatus uint32, ymtValidTime string, err error) int {
	if err != nil {
		return entities.StatusFailed
	}
	switch ymtStatus {
	case 2:
		return entities.StatusRedeemed
	case 3:
		return entities.StatusFailed
	default:
		t, err := time.Parse(time.DateTime, ymtValidTime)
		if err != nil {
			fmt.Printf("解析失败: %v\n", err)
			return entities.StatusFailed
		}
		if t.Unix() <= time.Now().Unix() {
			return entities.StatusExpired
		}
		return entities.StatusSuccess
	}
}

func (o *OrderStore) QueryOrder(req *entities.QueryOrderRequest) (*entities.QueryOrderResponseData, error) {
	result, err := o.ymtClient.KeyQuery(&ymt_v3.KeyQueryRequest{
		TradeNo: req.OrderNo,
	})
	if err != nil {
		return nil, err
	}
	resp := &entities.QueryOrderResponseData{
		OrderNo: result.TradeNo,
		Status:  o.getStatus(result.Status, result.ValidEndTime, err),
		Account: result.Account,
	}

	if result.URL != "" {
		resp.CardInfo = &entities.CardInfo{
			CouponNo:   result.URL,
			CouponCode: result.Key,
			ExpireTime: result.ValidEndTime,
		}
	}

	return resp, nil
}

func (o *OrderStore) HandleCallback(req *entities.CallBack) error {
	callBackData := &entities.CallbackRequest{
		OrderNo:     req.Data.TradeNo,
		ActOrderNum: req.Data.OutBizNo,
		Status:      o.getStatus(req.Data.Status, req.Data.ValidEndTime, nil),
		Account:     req.Data.Account,
		CardInfo: &entities.CardInfo{
			CouponNo:   req.Data.Url,
			CouponCode: req.Data.Key,
			ExpireTime: req.Data.ValidEndTime,
		},
	}
	sign, jsonData, err := makeEncryptedRequest(callBackData)
	if err != nil {
		return err
	}
	requset := &l_request.Request{
		Method: http.MethodPost,
		Json:   jsonData,
		Url:    o.cfg.NotifyUrl,
		Headers: map[string]string{
			"Content-Type": "application/json",
			"timestamp":    fmt.Sprintf("%d", time.Now().UnixMilli()),
			"sign":         sign,
		},
	}
	res, err := requset.Send()
	if err != nil {
		return err
	}
	if strings.ToLower(res.Text) != "ok" {

	}
	return nil
}

func makeEncryptedRequest(bizData interface{}) (string, map[string]interface{}, error) {
	bizJSON, err := json.Marshal(bizData)
	if err != nil {
		return "", nil, fmt.Errorf("业务数据序列化失败: %v", err)
	}

	encryptedData, err := crypto.SM4CBCEncrypt(bizJSON)
	if err != nil {
		return "", nil, fmt.Errorf("加密失败: %v", err)
	}

	timestamp := strconv.FormatInt(time.Now().UnixMilli(), 10)

	sign := crypto.GenerateSign(timestamp, encryptedData)

	reqBody := entities.EncryptedRequest{
		EncryptedData: encryptedData,
	}
	reqJSON, _ := pkg.StructToMap(reqBody)
	return sign, reqJSON, err
}