chore: import clean Agent Desk snapshot (2/7)

internal/ai/rag/chunk/registry.go

@@ -0,0 +1,59 @@
+package chunk
+
+import (
+	"agent-desk/internal/pkg/enums"
+	"context"
+	"fmt"
+)
+
+type Registry struct {
+	providers map[string]Provider
+}
+
+func NewRegistry() *Registry {
+	return &Registry{
+		providers: make(map[string]Provider),
+	}
+}
+
+func NewDefaultRegistry() *Registry {
+	r := NewRegistry()
+	r.Register(NewFixedProvider())
+	r.Register(NewStructuredProvider())
+	return r
+}
+
+func (r *Registry) Register(p Provider) {
+	if p == nil {
+		return
+	}
+	r.providers[p.Name()] = p
+}
+
+func (r *Registry) Get(name string) Provider {
+	if name == "" {
+		return nil
+	}
+	return r.providers[name]
+}
+
+func (r *Registry) Resolve(name string, contentType enums.KnowledgeDocumentContentType) Provider {
+	if p := r.Get(name); p != nil && p.Supports(contentType) {
+		return p
+	}
+	if p := r.Get(string(enums.KnowledgeChunkProviderStructured)); p != nil && p.Supports(contentType) {
+		return p
+	}
+	return r.Get(string(enums.KnowledgeChunkProviderFixed))
+}
+
+func (r *Registry) Chunk(ctx context.Context, req *ChunkRequest) ([]ChunkResult, error) {
+	if req == nil {
+		return nil, fmt.Errorf("chunk request is nil")
+	}
+	provider := r.Resolve(req.Options.Provider, req.ContentType)
+	if provider == nil {
+		return nil, fmt.Errorf("chunk provider not found")
+	}
+	return provider.Chunk(ctx, req)
+}