feat: Redemption Code

internal/logic/admin/redemption/batchDeleteRedemptionCodeLogic.go

@@ -0,0 +1,36 @@
+package redemption
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type BatchDeleteRedemptionCodeLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Batch delete redemption code
+func NewBatchDeleteRedemptionCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *BatchDeleteRedemptionCodeLogic {
+	return &BatchDeleteRedemptionCodeLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *BatchDeleteRedemptionCodeLogic) BatchDeleteRedemptionCode(req *types.BatchDeleteRedemptionCodeRequest) error {
+	err := l.svcCtx.RedemptionCodeModel.BatchDelete(l.ctx, req.Ids)
+	if err != nil {
+		l.Errorw("[BatchDeleteRedemptionCode] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "batch delete redemption code error: %v", err.Error())
+	}
+
+	return nil
+}

internal/logic/admin/redemption/createRedemptionCodeLogic.go

@@ -0,0 +1,119 @@
+package redemption
+
+import (
+	"context"
+	"crypto/rand"
+	"math/big"
+
+	"github.com/perfect-panel/server/internal/model/redemption"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+	"gorm.io/gorm"
+)
+
+type CreateRedemptionCodeLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Create redemption code
+func NewCreateRedemptionCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateRedemptionCodeLogic {
+	return &CreateRedemptionCodeLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+// generateUniqueCode generates a unique redemption code
+func (l *CreateRedemptionCodeLogic) generateUniqueCode() (string, error) {
+	const charset = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789" // Removed confusing characters like I, O, 0, 1
+	const codeLength = 16
+
+	maxRetries := 10
+	for i := 0; i < maxRetries; i++ {
+		code := make([]byte, codeLength)
+		for j := 0; j < codeLength; j++ {
+			num, err := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+			if err != nil {
+				return "", err
+			}
+			code[j] = charset[num.Int64()]
+		}
+
+		codeStr := string(code)
+
+		// Check if code already exists
+		_, err := l.svcCtx.RedemptionCodeModel.FindOneByCode(l.ctx, codeStr)
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return codeStr, nil
+		} else if err != nil {
+			return "", err
+		}
+		// Code exists, try again
+	}
+
+	return "", errors.New("failed to generate unique code after maximum retries")
+}
+
+func (l *CreateRedemptionCodeLogic) CreateRedemptionCode(req *types.CreateRedemptionCodeRequest) error {
+	// Check if subscribe plan is valid
+	if req.SubscribePlan == 0 {
+		l.Errorw("[CreateRedemptionCode] Subscribe plan cannot be empty")
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "subscribe plan cannot be empty")
+	}
+
+	// Verify subscribe plan exists
+	_, err := l.svcCtx.SubscribeModel.FindOne(l.ctx, req.SubscribePlan)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			l.Errorw("[CreateRedemptionCode] Subscribe plan not found", logger.Field("subscribe_plan", req.SubscribePlan))
+			return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "subscribe plan not found")
+		}
+		l.Errorw("[CreateRedemptionCode] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find subscribe plan error: %v", err.Error())
+	}
+
+	// Validate batch count
+	if req.BatchCount < 1 {
+		l.Errorw("[CreateRedemptionCode] Batch count must be at least 1")
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "batch count must be at least 1")
+	}
+
+	// Generate redemption codes in batch
+	var createdCodes []string
+	for i := int64(0); i < req.BatchCount; i++ {
+		code, err := l.generateUniqueCode()
+		if err != nil {
+			l.Errorw("[CreateRedemptionCode] Failed to generate unique code", logger.Field("error", err.Error()))
+			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "generate unique code error: %v", err.Error())
+		}
+
+		redemptionCode := &redemption.RedemptionCode{
+			Code:          code,
+			TotalCount:    req.TotalCount,
+			UsedCount:     0,
+			SubscribePlan: req.SubscribePlan,
+			UnitTime:      req.UnitTime,
+			Quantity:      req.Quantity,
+		}
+
+		err = l.svcCtx.RedemptionCodeModel.Insert(l.ctx, redemptionCode)
+		if err != nil {
+			l.Errorw("[CreateRedemptionCode] Database Error", logger.Field("error", err.Error()))
+			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "create redemption code error: %v", err.Error())
+		}
+
+		createdCodes = append(createdCodes, code)
+	}
+
+	l.Infow("[CreateRedemptionCode] Successfully created redemption codes",
+		logger.Field("count", len(createdCodes)),
+		logger.Field("codes", createdCodes))
+
+	return nil
+}

internal/logic/admin/redemption/deleteRedemptionCodeLogic.go

@@ -0,0 +1,36 @@
+package redemption
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type DeleteRedemptionCodeLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Delete redemption code
+func NewDeleteRedemptionCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteRedemptionCodeLogic {
+	return &DeleteRedemptionCodeLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *DeleteRedemptionCodeLogic) DeleteRedemptionCode(req *types.DeleteRedemptionCodeRequest) error {
+	err := l.svcCtx.RedemptionCodeModel.Delete(l.ctx, req.Id)
+	if err != nil {
+		l.Errorw("[DeleteRedemptionCode] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseDeletedError), "delete redemption code error: %v", err.Error())
+	}
+
+	return nil
+}

internal/logic/admin/redemption/getRedemptionCodeListLogic.go

@@ -0,0 +1,61 @@
+package redemption
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type GetRedemptionCodeListLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Get redemption code list
+func NewGetRedemptionCodeListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetRedemptionCodeListLogic {
+	return &GetRedemptionCodeListLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetRedemptionCodeListLogic) GetRedemptionCodeList(req *types.GetRedemptionCodeListRequest) (resp *types.GetRedemptionCodeListResponse, err error) {
+	total, list, err := l.svcCtx.RedemptionCodeModel.QueryRedemptionCodeListByPage(
+		l.ctx,
+		int(req.Page),
+		int(req.Size),
+		req.SubscribePlan,
+		req.UnitTime,
+		req.Code,
+	)
+	if err != nil {
+		l.Errorw("[GetRedemptionCodeList] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "get redemption code list error: %v", err.Error())
+	}
+
+	var redemptionCodes []types.RedemptionCode
+	for _, item := range list {
+		redemptionCodes = append(redemptionCodes, types.RedemptionCode{
+			Id:            item.Id,
+			Code:          item.Code,
+			TotalCount:    item.TotalCount,
+			UsedCount:     item.UsedCount,
+			SubscribePlan: item.SubscribePlan,
+			UnitTime:      item.UnitTime,
+			Quantity:      item.Quantity,
+			CreatedAt:     item.CreatedAt.Unix(),
+			UpdatedAt:     item.UpdatedAt.Unix(),
+		})
+	}
+
+	return &types.GetRedemptionCodeListResponse{
+		Total: total,
+		List:  redemptionCodes,
+	}, nil
+}

internal/logic/admin/redemption/getRedemptionRecordListLogic.go

@@ -0,0 +1,59 @@
+package redemption
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type GetRedemptionRecordListLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Get redemption record list
+func NewGetRedemptionRecordListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetRedemptionRecordListLogic {
+	return &GetRedemptionRecordListLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetRedemptionRecordListLogic) GetRedemptionRecordList(req *types.GetRedemptionRecordListRequest) (resp *types.GetRedemptionRecordListResponse, err error) {
+	total, list, err := l.svcCtx.RedemptionRecordModel.QueryRedemptionRecordListByPage(
+		l.ctx,
+		int(req.Page),
+		int(req.Size),
+		req.UserId,
+		req.CodeId,
+	)
+	if err != nil {
+		l.Errorw("[GetRedemptionRecordList] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "get redemption record list error: %v", err.Error())
+	}
+
+	var redemptionRecords []types.RedemptionRecord
+	for _, item := range list {
+		redemptionRecords = append(redemptionRecords, types.RedemptionRecord{
+			Id:               item.Id,
+			RedemptionCodeId: item.RedemptionCodeId,
+			UserId:           item.UserId,
+			SubscribeId:      item.SubscribeId,
+			UnitTime:         item.UnitTime,
+			Quantity:         item.Quantity,
+			RedeemedAt:       item.RedeemedAt.Unix(),
+			CreatedAt:        item.CreatedAt.Unix(),
+		})
+	}
+
+	return &types.GetRedemptionRecordListResponse{
+		Total: total,
+		List:  redemptionRecords,
+	}, nil
+}

internal/logic/admin/redemption/updateRedemptionCodeLogic.go

@@ -0,0 +1,65 @@
+package redemption
+
+import (
+	"context"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+)
+
+type UpdateRedemptionCodeLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Update redemption code
+func NewUpdateRedemptionCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UpdateRedemptionCodeLogic {
+	return &UpdateRedemptionCodeLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *UpdateRedemptionCodeLogic) UpdateRedemptionCode(req *types.UpdateRedemptionCodeRequest) error {
+	redemptionCode, err := l.svcCtx.RedemptionCodeModel.FindOne(l.ctx, req.Id)
+	if err != nil {
+		l.Errorw("[UpdateRedemptionCode] Find Redemption Code Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find redemption code error: %v", err.Error())
+	}
+
+	// Code is not allowed to be modified
+	if req.TotalCount != 0 {
+		// Total count cannot be less than used count
+		if req.TotalCount < redemptionCode.UsedCount {
+			l.Errorw("[UpdateRedemptionCode] Total count cannot be less than used count",
+				logger.Field("total_count", req.TotalCount),
+				logger.Field("used_count", redemptionCode.UsedCount))
+			return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams),
+				"total count cannot be less than used count: total_count=%d, used_count=%d",
+				req.TotalCount, redemptionCode.UsedCount)
+		}
+		redemptionCode.TotalCount = req.TotalCount
+	}
+	if req.SubscribePlan != 0 {
+		redemptionCode.SubscribePlan = req.SubscribePlan
+	}
+	if req.UnitTime != "" {
+		redemptionCode.UnitTime = req.UnitTime
+	}
+	if req.Quantity != 0 {
+		redemptionCode.Quantity = req.Quantity
+	}
+
+	err = l.svcCtx.RedemptionCodeModel.Update(l.ctx, redemptionCode)
+	if err != nil {
+		l.Errorw("[UpdateRedemptionCode] Database Error", logger.Field("error", err.Error()))
+		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "update redemption code error: %v", err.Error())
+	}
+
+	return nil
+}

internal/logic/public/redemption/redeemCodeLogic.go

@@ -0,0 +1,254 @@
+package redemption
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/perfect-panel/server/internal/model/redemption"
+	"github.com/perfect-panel/server/internal/model/user"
+	"github.com/perfect-panel/server/pkg/constant"
+	"github.com/perfect-panel/server/pkg/snowflake"
+	"github.com/perfect-panel/server/pkg/uuidx"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/pkg/errors"
+	"gorm.io/gorm"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+)
+
+type RedeemCodeLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// Redeem code
+func NewRedeemCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *RedeemCodeLogic {
+	return &RedeemCodeLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *RedeemCodeLogic) RedeemCode(req *types.RedeemCodeRequest) (resp *types.RedeemCodeResponse, err error) {
+	// Get user from context
+	u, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
+	if !ok {
+		logger.Error("current user is not found in context")
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
+	}
+
+	// Find redemption code by code
+	redemptionCode, err := l.svcCtx.RedemptionCodeModel.FindOneByCode(l.ctx, req.Code)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			l.Errorw("[RedeemCode] Redemption code not found", logger.Field("code", req.Code))
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "redemption code not found")
+		}
+		l.Errorw("[RedeemCode] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find redemption code error: %v", err.Error())
+	}
+
+	// Check if redemption code has remaining count
+	if redemptionCode.TotalCount > 0 && redemptionCode.UsedCount >= redemptionCode.TotalCount {
+		l.Errorw("[RedeemCode] Redemption code has been fully used",
+			logger.Field("code", req.Code),
+			logger.Field("total_count", redemptionCode.TotalCount),
+			logger.Field("used_count", redemptionCode.UsedCount))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "redemption code has been fully used")
+	}
+
+	// Check if user has already redeemed this code
+	userRecords, err := l.svcCtx.RedemptionRecordModel.FindByUserId(l.ctx, u.Id)
+	if err != nil {
+		l.Errorw("[RedeemCode] Database Error", logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find redemption records error: %v", err.Error())
+	}
+	for _, record := range userRecords {
+		if record.RedemptionCodeId == redemptionCode.Id {
+			l.Errorw("[RedeemCode] User has already redeemed this code",
+				logger.Field("user_id", u.Id),
+				logger.Field("code", req.Code))
+			return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "you have already redeemed this code")
+		}
+	}
+
+	// Find subscribe plan from redemption code
+	subscribePlan, err := l.svcCtx.SubscribeModel.FindOne(l.ctx, redemptionCode.SubscribePlan)
+	if err != nil {
+		l.Errorw("[RedeemCode] Subscribe plan not found",
+			logger.Field("subscribe_plan", redemptionCode.SubscribePlan),
+			logger.Field("error", err.Error()))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "subscribe plan not found")
+	}
+
+	// Check if subscribe plan is available
+	if !*subscribePlan.Sell {
+		l.Errorw("[RedeemCode] Subscribe plan is not available",
+			logger.Field("subscribe_plan", redemptionCode.SubscribePlan))
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SubscribeNotAvailable), "subscribe plan is not available")
+	}
+
+	// Start transaction
+	err = l.svcCtx.RedemptionCodeModel.Transaction(l.ctx, func(tx *gorm.DB) error {
+		// Find user's existing subscribe for this plan
+		var existingSubscribe *user.SubscribeDetails
+		userSubscribes, err := l.svcCtx.UserModel.QueryUserSubscribe(l.ctx, u.Id, 0, 1)
+		if err == nil {
+			for _, us := range userSubscribes {
+				if us.SubscribeId == redemptionCode.SubscribePlan {
+					existingSubscribe = us
+					break
+				}
+			}
+		}
+
+		now := time.Now()
+
+		if existingSubscribe != nil {
+			// Extend existing subscribe
+			var newExpireTime time.Time
+			if existingSubscribe.ExpireTime.After(now) {
+				newExpireTime = existingSubscribe.ExpireTime
+			} else {
+				newExpireTime = now
+			}
+
+			// Calculate duration based on redemption code
+			duration, err := calculateDuration(redemptionCode.UnitTime, redemptionCode.Quantity)
+			if err != nil {
+				l.Errorw("[RedeemCode] Calculate duration error", logger.Field("error", err.Error()))
+				return errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "calculate duration error: %v", err.Error())
+			}
+			newExpireTime = newExpireTime.Add(duration)
+
+			// Update subscribe
+			existingSubscribe.ExpireTime = newExpireTime
+			existingSubscribe.Status = 1
+
+			// Add traffic if needed
+			if subscribePlan.Traffic > 0 {
+				existingSubscribe.Traffic = subscribePlan.Traffic * 1024 * 1024 * 1024
+				existingSubscribe.Download = 0
+				existingSubscribe.Upload = 0
+			}
+
+			err = l.svcCtx.UserModel.UpdateSubscribe(l.ctx, &user.Subscribe{
+				Id:         existingSubscribe.Id,
+				UserId:     existingSubscribe.UserId,
+				ExpireTime: existingSubscribe.ExpireTime,
+				Status:     existingSubscribe.Status,
+				Traffic:    existingSubscribe.Traffic,
+				Download:   existingSubscribe.Download,
+				Upload:     existingSubscribe.Upload,
+			}, tx)
+			if err != nil {
+				l.Errorw("[RedeemCode] Update subscribe error", logger.Field("error", err.Error()))
+				return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "update subscribe error: %v", err.Error())
+			}
+		} else {
+			// Create new subscribe
+			expireTime, traffic, err := calculateSubscribeTimeAndTraffic(redemptionCode.UnitTime, redemptionCode.Quantity, subscribePlan.Traffic)
+			if err != nil {
+				l.Errorw("[RedeemCode] Calculate subscribe time and traffic error", logger.Field("error", err.Error()))
+				return errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "calculate subscribe time and traffic error: %v", err.Error())
+			}
+
+			newSubscribe := &user.Subscribe{
+				Id:          snowflake.GetID(),
+				UserId:      u.Id,
+				OrderId:     0,
+				SubscribeId: redemptionCode.SubscribePlan,
+				StartTime:   now,
+				ExpireTime:  expireTime,
+				FinishedAt:  nil,
+				Traffic:     traffic,
+				Download:    0,
+				Upload:      0,
+				Token:       uuidx.SubscribeToken(fmt.Sprintf("redemption:%d:%d", u.Id, time.Now().UnixMilli())),
+				UUID:        uuid.New().String(),
+				Status:      1,
+			}
+
+			err = l.svcCtx.UserModel.InsertSubscribe(l.ctx, newSubscribe, tx)
+			if err != nil {
+				l.Errorw("[RedeemCode] Insert subscribe error", logger.Field("error", err.Error()))
+				return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "insert subscribe error: %v", err.Error())
+			}
+		}
+
+		// Increment redemption code used count
+		err = l.svcCtx.RedemptionCodeModel.IncrementUsedCount(l.ctx, redemptionCode.Id)
+		if err != nil {
+			l.Errorw("[RedeemCode] Increment used count error", logger.Field("error", err.Error()))
+			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "increment used count error: %v", err.Error())
+		}
+
+		// Create redemption record
+		redemptionRecord := &redemption.RedemptionRecord{
+			Id:               snowflake.GetID(),
+			RedemptionCodeId: redemptionCode.Id,
+			UserId:           u.Id,
+			SubscribeId:      redemptionCode.SubscribePlan,
+			UnitTime:         redemptionCode.UnitTime,
+			Quantity:         redemptionCode.Quantity,
+			RedeemedAt:       now,
+			CreatedAt:        now,
+		}
+
+		err = l.svcCtx.RedemptionRecordModel.Insert(l.ctx, redemptionRecord)
+		if err != nil {
+			l.Errorw("[RedeemCode] Insert redemption record error", logger.Field("error", err.Error()))
+			return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "insert redemption record error: %v", err.Error())
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &types.RedeemCodeResponse{
+		Message: "Redemption successful",
+	}, nil
+}
+
+// calculateDuration calculates time duration based on unit time
+func calculateDuration(unitTime string, quantity int64) (time.Duration, error) {
+	switch unitTime {
+	case "month":
+		return time.Duration(quantity*30*24) * time.Hour, nil
+	case "quarter":
+		return time.Duration(quantity*90*24) * time.Hour, nil
+	case "half_year":
+		return time.Duration(quantity*180*24) * time.Hour, nil
+	case "year":
+		return time.Duration(quantity*365*24) * time.Hour, nil
+	case "day":
+		return time.Duration(quantity*24) * time.Hour, nil
+	default:
+		return time.Duration(quantity*30*24) * time.Hour, nil
+	}
+}
+
+// calculateSubscribeTimeAndTraffic calculates expire time and traffic based on subscribe plan
+func calculateSubscribeTimeAndTraffic(unitTime string, quantity int64, traffic int64) (time.Time, int64, error) {
+	duration, err := calculateDuration(unitTime, quantity)
+	if err != nil {
+		return time.Time{}, 0, err
+	}
+
+	expireTime := time.Now().Add(duration)
+	trafficBytes := int64(0)
+	if traffic > 0 {
+		trafficBytes = traffic * 1024 * 1024 * 1024
+	}
+
+	return expireTime, trafficBytes, nil
+}