package biz

import (
	"context"
	"errors"
	"fmt"
	"gorm.io/gorm"
	"time"
	v1 "voucher/api/v1"
	"voucher/internal/biz/bo"
	"voucher/internal/biz/vo"
	"voucher/internal/pkg/lock"
)

func (v *VoucherBiz) CmbOrder(ctx context.Context, req *bo.OrderCreateReqBo) (voucherNo string, err error) {

	c := vo.CmbOrderLockKey.BuildCache([]string{req.OutBizNo, req.Type.String()})

	err = lock.NewMutex(v.rdb.Rdb, c.TTL).Lock(ctx, c.Key, func(ctx context.Context) error {

		order, err := v.OrderRepo.GetByOutBizNo(ctx, vo.OrderTypeCmb, req.OutBizNo)

		if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
			return err
		}

		if order != nil {

			if order.Status.IsFail() {
				if err = v.orderRetry(ctx, order); err != nil {
					return err
				}
			}

			voucherNo = order.VoucherNo
			return nil
		}

		product, err := v.ProductRepo.GetByPNO(ctx, req.ProductNo)
		if err != nil {
			return err
		}

		if !product.Channel.IsWeChat() {
			return fmt.Errorf("只支持微信")
		}

		order, err = v.order(ctx, req, product)
		if err != nil {
			return err
		}

		voucherNo = order.VoucherNo

		return nil
	})

	return
}

func (v *VoucherBiz) CmbQuery(ctx context.Context, orderNo string) (resp *v1.CmbQueryReply, err error) {

	c := vo.CmbQueryLockKey.BuildCache([]string{orderNo})

	err = lock.NewMutex(v.rdb.Rdb, c.TTL).Lock(ctx, c.Key, func(ctx context.Context) error {

		order, err := v.OrderRepo.GetByOrderNo(ctx, orderNo)
		if err != nil {
			return err
		}

		status, err := order.Status.GetCmbStatusText()
		if err != nil {
			return err
		}

		resp = &v1.CmbQueryReply{
			Ticket:    order.OrderNo,
			Status:    status.GetValue(),
			TransDate: time.Now().Format("20060102150405"),
			OrgNo:     v.bc.Cmb.OrgNo,
			Ext:       "",
		}

		return nil
	})

	return
}

func (v *VoucherBiz) CmbProductQuery(ctx context.Context, productNo string) (reps *v1.CmbQueryProductReply, err error) {

	c := vo.CmbProductQueryLockKey.BuildCache([]string{productNo})

	err = lock.NewMutex(v.rdb.Rdb, c.TTL).Lock(ctx, c.Key, func(ctx context.Context) error {

		product, err := v.ProductRepo.GetByPNO(ctx, productNo)
		if err != nil {
			return err
		}

		if !product.Channel.IsWeChat() {
			return fmt.Errorf("只支持微信")
		}

		wechatResp, err := v.WechatCpnRepo.QueryProduct(ctx, product.MchId, product.BatchNo)
		if err != nil {
			return fmt.Errorf("批次号:%s,微信错误返回:%v", product.BatchNo, err)
		}

		reps = &v1.CmbQueryProductReply{
			RespCode:       vo.CmbResponseStatusSuccess.GetValue(),
			RespMsg:        "成功",
			ActivityName:   product.Name,
			ActivityId:     product.ProductNo,
			Amount:         "",
			MinAmount:      "",
			AvailableType:  "",
			AvailableDays:  "", // 动态有效期天数
			StartTime:      *wechatResp.AvailableBeginTime,
			EndTime:        *wechatResp.AvailableEndTime,
			AvailableStock: "",
			Detail:         *wechatResp.Description,

			SaleStartTime: *wechatResp.StartTime,
			SaleEndTime:   *wechatResp.StopTime,
		}

		reps.Amount = fmt.Sprintf("%d", *wechatResp.StockUseRule.FixedNormalCoupon.CouponAmount)
		reps.MinAmount = fmt.Sprintf("%d", *wechatResp.StockUseRule.FixedNormalCoupon.TransactionMinimum)

		availableStock := *wechatResp.StockUseRule.MaxCoupons - *wechatResp.DistributedCoupons
		reps.AvailableStock = fmt.Sprintf("%d", availableStock)

		reps.AvailableType = vo.CmbAvailableTypeFixed.GetValue()

		return nil
	})

	return
}