Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplefile-backend/internal/repo/storagedailyusage/delete.go

@@ -0,0 +1,47 @@
+// monorepo/cloud/maplefile-backend/internal/maplefile/repo/storagedailyusage/delete.go
+package storagedailyusage
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/gocql/gocql"
+	"go.uber.org/zap"
+)
+
+func (impl *storageDailyUsageRepositoryImpl) DeleteByUserAndDay(ctx context.Context, userID gocql.UUID, usageDay time.Time) error {
+	// Ensure usage day is truncated to date only
+	usageDay = usageDay.Truncate(24 * time.Hour)
+
+	query := `DELETE FROM maplefile.storage_daily_usage_by_user_id_with_asc_usage_day
+		WHERE user_id = ? AND usage_day = ?`
+
+	err := impl.Session.Query(query, userID, usageDay).WithContext(ctx).Exec()
+	if err != nil {
+		impl.Logger.Error("failed to delete storage daily usage", zap.Error(err))
+		return fmt.Errorf("failed to delete storage daily usage: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteByUserID deletes all storage daily usage records for a user (all days)
+// Used for GDPR right-to-be-forgotten implementation
+func (impl *storageDailyUsageRepositoryImpl) DeleteByUserID(ctx context.Context, userID gocql.UUID) error {
+	query := `DELETE FROM maplefile.storage_daily_usage_by_user_id_with_asc_usage_day
+		WHERE user_id = ?`
+
+	err := impl.Session.Query(query, userID).WithContext(ctx).Exec()
+	if err != nil {
+		impl.Logger.Error("failed to delete all storage daily usage for user",
+			zap.String("user_id", userID.String()),
+			zap.Error(err))
+		return fmt.Errorf("failed to delete all storage daily usage for user %s: %w", userID.String(), err)
+	}
+
+	impl.Logger.Info("✅ Deleted all storage daily usage records for user",
+		zap.String("user_id", userID.String()))
+
+	return nil
+}