131 lines
4.0 KiB
Go
131 lines
4.0 KiB
Go
package summary
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import (
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"context"
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"time"
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"bsm/full/module/ec/order/internal/impl"
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"bsm/full/module/ec/order/internal/models"
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pb "bsm/full/module/ec/order/pb"
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"git.apinb.com/bsm-sdk/core/errcode"
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"git.apinb.com/bsm-sdk/core/printer"
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"git.apinb.com/bsm-sdk/core/service"
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)
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// 确认订单，物流，优惠卷等其它信息
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func Confirm(ctx context.Context, in *pb.ConfirmRequest) (reply *pb.ConfirmReply, err error) {
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// parse authorization meta.
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auth, err := service.ParseMetaCtx(ctx, nil)
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if err != nil {
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return nil, err
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}
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var (
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logisFee int64 = 0
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couponAmount int64 = 0
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summary = new(models.OrderSummary)
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coupon = new(models.OrderCoupon)
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)
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err = impl.DBService.Where("order_no = ?", in.OrderNo).First(&summary).Error
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if err != nil {
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printer.Error(err.Error())
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return nil, errcode.ErrDB
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}
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if in.AddressIdentity != "" {
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/*
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err = impl.DBService.Where("id=?", in.AddressId).First(&address).Error
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if err == nil {
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summary.Address = address.Detail
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summary.County = address.Country
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summary.Province = address.Province
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summary.City = address.City
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summary.Area = address.Area
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summary.Contact = address.Contact
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summary.Phone = address.Phone
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logisFee = GetLogisticsFee(summary.TotalPrice, address.Province)
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}
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*/
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}
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if logisFee > 0 {
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summary.TotalPrice = summary.TotalPrice + logisFee
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}
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if in.CouponIdentity != "" {
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err = impl.DBService.Where("identity=?", in.CouponIdentity).First(&coupon).Error
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if err != nil {
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printer.Error(err.Error())
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return nil, errcode.ErrRecordNotFound
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}
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// 校验优惠券归属：passport_id 或 passport_identity 命中调用者才算本人所有。
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if coupon.PassportIdentity != auth.Identity && coupon.PassportID != auth.ID {
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return nil, errcode.ErrPermissionDenied
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}
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// 校验使用状态：仅可用的优惠券（status=2）可使用。
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if coupon.Status != 2 {
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return nil, errcode.ErrUnavailable
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}
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// 校验有效期：started/expired 为字符串，格式可解析时强制校验，无法解析时跳过。
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now := time.Now()
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if started, ok := parseCouponTime(coupon.Started); ok && now.Before(started) {
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return nil, errcode.ErrUnavailable
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}
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if expired, ok := parseCouponTime(coupon.Expired); ok && now.After(expired) {
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return nil, errcode.ErrUnavailable
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}
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// 核销优惠券：带状态条件更新并检查影响行数，避免重复使用同一张券。
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result := impl.DBService.Model(&models.OrderCoupon{}).Where("identity = ? AND status = 2", in.CouponIdentity).Update("status", 3)
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if result.Error != nil {
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printer.Error(result.Error.Error())
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return nil, errcode.ErrDB
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}
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if result.RowsAffected == 0 {
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return nil, errcode.ErrUnavailable
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}
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couponAmount = coupon.Amount
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}
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if couponAmount > 0 {
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// 优惠券为减免项，抵扣后总额不得为负：抵扣额不超过订单金额。
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if couponAmount >= summary.TotalPrice {
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summary.TotalPrice = 0
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} else {
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summary.TotalPrice = summary.TotalPrice - couponAmount
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}
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// 回写所用券与其抵扣额，供取消订单时退券使用。
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summary.CouponIdentity = in.CouponIdentity
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summary.CouponAmount = couponAmount
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}
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summary.Status = 1
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// 显式指定需落库的列，保证总额抵扣为 0 时也能写入。
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err = impl.DBService.Where("order_no = ?", in.OrderNo).
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Select("total_price", "coupon_identity", "coupon_amount", "status").
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Updates(summary).Error
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if err != nil {
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printer.Error(err.Error())
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return nil, errcode.ErrDB
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}
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return &pb.ConfirmReply{
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TotalPrice: summary.TotalPrice,
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}, nil
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}
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// parseCouponTime 解析优惠券 started/expired 时间字段，兼容"2006-01-02 15:04:05"与"2006-01-02"两种格式；
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// 无法解析时返回 ok=false，由调用方跳过该项校验。
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func parseCouponTime(v string) (time.Time, bool) {
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if v == "" {
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return time.Time{}, false
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}
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for _, layout := range []string{"2006-01-02 15:04:05", "2006-01-02"} {
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if t, err := time.ParseInLocation(layout, v, time.Local); err == nil {
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return t, true
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}
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}
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return time.Time{}, false
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}
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