WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

cli/internal/cmdutil/kb.go

@@ -0,0 +1,54 @@
+package cmdutil
+
+import (
+	"context"
+	"fmt"
+	"regexp"
+
+	sdk "github.com/Tencent/WeKnora/client"
+)
+
+// uuidPattern matches the canonical 8-4-4-4-12 UUID form. WeKnora's KB ids
+// are uuid.New().String() output stored as varchar(36); names are arbitrary
+// user-supplied strings, so format-detection is unambiguous.
+var uuidPattern = regexp.MustCompile(`^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$`)
+
+// IsKBID reports whether s looks like a KB id. Used by Factory.ResolveKB and
+// any caller that accepts a single id-or-name selector value (id vs name
+// auto-detection).
+func IsKBID(s string) bool { return uuidPattern.MatchString(s) }
+
+// KBLister is the narrow SDK surface ResolveKBNameToID depends on. The
+// production *sdk.Client satisfies it; tests inject fakes without standing
+// up an HTTP server.
+type KBLister interface {
+	ListKnowledgeBases(ctx context.Context) ([]sdk.KnowledgeBase, error)
+}
+
+// ResolveKBFlag interprets a raw --kb value (id or name) and returns the
+// canonical id. Pass-through when raw already looks like an id; otherwise
+// list and match by name. Shared by every command that takes a --kb flag
+// directly (search chunks/docs, doc download, link …) so the id-or-name
+// policy never drifts.
+func ResolveKBFlag(ctx context.Context, lister KBLister, raw string) (string, error) {
+	if IsKBID(raw) {
+		return raw, nil
+	}
+	return ResolveKBNameToID(ctx, lister, raw)
+}
+
+// ResolveKBNameToID looks up a knowledge base by name and returns its ID.
+// Used by `link` and `Factory.ResolveKB` - a single lookup so the match
+// policy (currently exact case-sensitive) lives in one place.
+func ResolveKBNameToID(ctx context.Context, lister KBLister, name string) (string, error) {
+	kbs, err := lister.ListKnowledgeBases(ctx)
+	if err != nil {
+		return "", WrapHTTP(err, "list knowledge bases")
+	}
+	for _, kb := range kbs {
+		if kb.Name == name {
+			return kb.ID, nil
+		}
+	}
+	return "", NewError(CodeKBNotFound, fmt.Sprintf("knowledge base not found: %s", name))
+}