x

queue/logic/order/newUserEligibility.go

@@ -0,0 +1,58 @@
+package orderLogic
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"time"
+
+	commonLogic "github.com/perfect-panel/server/internal/logic/common"
+	"github.com/perfect-panel/server/internal/model/order"
+	"github.com/perfect-panel/server/internal/model/subscribe"
+	internaltypes "github.com/perfect-panel/server/internal/types"
+	"gorm.io/gorm"
+)
+
+func validateNewUserOnlyEligibilityAtActivation(
+	ctx context.Context,
+	db *gorm.DB,
+	orderInfo *order.Order,
+	sub *subscribe.Subscribe,
+) error {
+	if orderInfo == nil || sub == nil || orderInfo.Type != OrderTypeSubscribe || sub.Discount == "" {
+		return nil
+	}
+
+	var discounts []internaltypes.SubscribeDiscount
+	if err := json.Unmarshal([]byte(sub.Discount), &discounts); err != nil {
+		return nil
+	}
+	if !isNewUserOnlyForQuantity(discounts, orderInfo.Quantity) {
+		return nil
+	}
+
+	eligibility, err := commonLogic.ResolveNewUserEligibility(ctx, db, orderInfo.UserId)
+	if err != nil {
+		return err
+	}
+	if !eligibility.IsNewUserAt(time.Now()) {
+		return fmt.Errorf("new user only: user %d is not a new user", orderInfo.UserId)
+	}
+
+	historyCount, err := commonLogic.CountScopedSubscribePurchaseOrders(
+		ctx,
+		db,
+		eligibility.ScopeUserIDs,
+		orderInfo.SubscribeId,
+		[]int64{OrderStatusFinished},
+		orderInfo.OrderNo,
+	)
+	if err != nil {
+		return fmt.Errorf("new user only: check history error: %w", err)
+	}
+	if historyCount >= 1 {
+		return fmt.Errorf("new user only: user %d already activated subscribe %d", orderInfo.UserId, orderInfo.SubscribeId)
+	}
+
+	return nil
+}