214 lines
7.4 KiB
Go
214 lines
7.4 KiB
Go
package order
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import (
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"context"
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"encoding/json"
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"time"
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"github.com/perfect-panel/server/internal/model/log"
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"github.com/perfect-panel/server/pkg/constant"
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"gorm.io/gorm"
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"github.com/hibiken/asynq"
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"github.com/perfect-panel/server/internal/model/order"
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"github.com/perfect-panel/server/internal/model/user"
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"github.com/perfect-panel/server/internal/svc"
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"github.com/perfect-panel/server/internal/types"
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"github.com/perfect-panel/server/pkg/logger"
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"github.com/perfect-panel/server/pkg/tool"
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"github.com/perfect-panel/server/pkg/xerr"
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queue "github.com/perfect-panel/server/queue/types"
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"github.com/pkg/errors"
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)
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type RenewalLogic struct {
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logger.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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// NewRenewalLogic creates a new renewal logic instance for subscription renewal operations
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func NewRenewalLogic(ctx context.Context, svcCtx *svc.ServiceContext) *RenewalLogic {
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return &RenewalLogic{
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Logger: logger.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// Renewal processes subscription renewal orders including discount calculation,
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// coupon validation, gift amount deduction, fee calculation, and order creation
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func (l *RenewalLogic) Renewal(req *types.RenewalOrderRequest) (resp *types.RenewalOrderResponse, err error) {
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u, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
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if !ok {
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logger.Error("current user is not found in context")
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
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}
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if req.Quantity <= 0 {
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l.Debugf("[Renewal] Quantity is less than or equal to 0, setting to 1")
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req.Quantity = 1
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}
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orderNo := tool.GenerateTradeNo()
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// find user subscribe
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userSubscribe, err := l.svcCtx.UserModel.FindOneUserSubscribe(l.ctx, req.UserSubscribeID)
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if err != nil {
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find user subscribe error: %v", err.Error())
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}
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// find subscription
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sub, err := l.svcCtx.SubscribeModel.FindOne(l.ctx, userSubscribe.SubscribeId)
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if err != nil {
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l.Errorw("[Renewal] Database query error", logger.Field("error", err.Error()), logger.Field("subscribe_id", userSubscribe.SubscribeId))
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find subscribe error: %v", err.Error())
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}
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// check subscribe plan status
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if !*sub.Sell {
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "subscribe not sell")
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}
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var discount float64 = 1
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if sub.Discount != "" {
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var dis []types.SubscribeDiscount
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_ = json.Unmarshal([]byte(sub.Discount), &dis)
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discount = getDiscount(dis, req.Quantity)
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}
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price := sub.UnitPrice * req.Quantity
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amount := int64(float64(price) * discount)
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discountAmount := price - amount
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var coupon int64 = 0
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if req.Coupon != "" {
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couponInfo, err := l.svcCtx.CouponModel.FindOneByCode(l.ctx, req.Coupon)
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponNotExist), "coupon not found")
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}
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find coupon error: %v", err.Error())
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}
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if couponInfo.Count <= couponInfo.UsedCount {
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponInsufficientUsage), "coupon used")
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}
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couponSub := tool.StringToInt64Slice(couponInfo.Subscribe)
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if len(couponSub) > 0 && !tool.Contains(couponSub, sub.Id) {
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponNotApplicable), "coupon not match")
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}
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var count int64
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err = l.svcCtx.DB.Transaction(func(tx *gorm.DB) error {
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return tx.Model(&order.Order{}).Where("user_id = ? and coupon = ?", u.Id, req.Coupon).Count(&count).Error
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})
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if err != nil {
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l.Errorw("[Renewal] Database query error", logger.Field("error", err.Error()), logger.Field("user_id", u.Id), logger.Field("coupon", req.Coupon))
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find coupon error: %v", err.Error())
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}
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if count >= couponInfo.UserLimit {
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponInsufficientUsage), "coupon limit exceeded")
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}
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coupon = calculateCoupon(amount, couponInfo)
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}
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payment, err := l.svcCtx.PaymentModel.FindOne(l.ctx, req.Payment)
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if err != nil {
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l.Errorw("[Renewal] Database query error", logger.Field("error", err.Error()), logger.Field("payment", req.Payment))
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return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find payment error: %v", err.Error())
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}
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amount -= coupon
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var deductionAmount int64
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// Check user deduction amount
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if u.GiftAmount > 0 {
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if u.GiftAmount >= amount {
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deductionAmount = amount
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u.GiftAmount -= deductionAmount
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amount = 0
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} else {
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deductionAmount = u.GiftAmount
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amount -= u.GiftAmount
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u.GiftAmount = 0
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}
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}
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var feeAmount int64
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// Calculate the handling fee
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if amount > 0 {
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feeAmount = calculateFee(amount, payment)
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}
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amount += feeAmount
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// create order
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orderInfo := order.Order{
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UserId: u.Id,
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ParentId: userSubscribe.OrderId,
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OrderNo: orderNo,
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Type: 2,
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Quantity: req.Quantity,
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Price: price,
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Amount: amount,
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GiftAmount: deductionAmount,
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Discount: discountAmount,
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Coupon: req.Coupon,
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CouponDiscount: coupon,
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PaymentId: payment.Id,
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Method: payment.Platform,
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FeeAmount: feeAmount,
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Status: 1,
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SubscribeId: userSubscribe.SubscribeId,
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SubscribeToken: userSubscribe.Token,
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}
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// Database transaction
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err = l.svcCtx.DB.Transaction(func(db *gorm.DB) error {
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// update user deduction && Pre deduction ,Return after canceling the order
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if orderInfo.GiftAmount > 0 {
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// update user deduction && Pre deduction ,Return after canceling the order
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if err := l.svcCtx.UserModel.Update(l.ctx, u, db); err != nil {
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l.Errorw("[Renewal] Database update error", logger.Field("error", err.Error()), logger.Field("user", u))
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return err
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}
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// create deduction record
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giftLog := log.Gift{
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Type: log.GiftTypeReduce,
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OrderNo: orderInfo.OrderNo,
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SubscribeId: 0,
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Amount: orderInfo.GiftAmount,
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Balance: u.GiftAmount,
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Remark: "Renewal order deduction",
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Timestamp: time.Now().UnixMilli(),
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}
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content, _ := giftLog.Marshal()
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if err := db.Model(&log.SystemLog{}).Create(&log.SystemLog{
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Type: log.TypeGift.Uint8(),
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Date: time.Now().Format(time.DateOnly),
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ObjectID: u.Id,
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Content: string(content),
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}).Error; err != nil {
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l.Errorw("[Renewal] Database insert error", logger.Field("error", err.Error()), logger.Field("deductionLog", giftLog))
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return err
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}
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}
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// insert order
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return db.Model(&order.Order{}).Create(&orderInfo).Error
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})
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if err != nil {
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l.Errorw("[Renewal] Database insert error", logger.Field("error", err.Error()), logger.Field("order", orderInfo))
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return nil, errors.Wrapf(err, "insert order error: %v", err.Error())
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}
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// Deferred task
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payload := queue.DeferCloseOrderPayload{
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OrderNo: orderInfo.OrderNo,
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}
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val, err := json.Marshal(payload)
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if err != nil {
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l.Errorw("[Renewal] Marshal payload error", logger.Field("error", err.Error()), logger.Field("payload", payload))
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}
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task := asynq.NewTask(queue.DeferCloseOrder, val, asynq.MaxRetry(3))
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taskInfo, err := l.svcCtx.Queue.Enqueue(task, asynq.ProcessIn(CloseOrderTimeMinutes*time.Minute))
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if err != nil {
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l.Errorw("[Renewal] Enqueue task error", logger.Field("error", err.Error()), logger.Field("task", task))
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} else {
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l.Infow("[Renewal] Enqueue task success", logger.Field("TaskID", taskInfo.ID))
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}
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return &types.RenewalOrderResponse{
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OrderNo: orderInfo.OrderNo,
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}, nil
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}
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