优化结构

internal/integration/storage/prefix.go

@@ -1,11 +1,39 @@
 package storage
 
 import (
+	"context"
 	"errors"
+	"kra/internal/biz/system"
 	"path"
 	"strings"
 )
 
+func deletePrefixViaList(ctx context.Context, prefix string, list func(context.Context, string, string, int) ([]*system.StoredFile, string, bool, error), remove func(context.Context, string) error) error {
+	prefix, err := normalizeDeletePrefix(prefix)
+	if err != nil {
+		return err
+	}
+	cursor := ""
+	for {
+		items, next, more, err := list(ctx, prefix+"/", cursor, 1000)
+		if err != nil {
+			return err
+		}
+		for _, item := range items {
+			if err := remove(ctx, item.Path); err != nil {
+				return err
+			}
+		}
+		if !more {
+			return nil
+		}
+		cursor, err = advanceDeletePrefixCursor(cursor, next, more)
+		if err != nil {
+			return err
+		}
+	}
+}
+
 // normalizeDeletePrefix rejects requests that could accidentally target the
 // storage root and returns the canonical key form used by all backends.
 func normalizeDeletePrefix(prefix string) (string, error) {