Completions api (#8) (#29)

server/providers/registry.go

@@ -0,0 +1,47 @@
+package providers
+
+import (
+	"fmt"
+	"sync"
+)
+
+// registry holds all registered providers.
+var (
+	registry = make(map[string]Provider)
+	mu       sync.RWMutex
+)
+
+// Register adds a provider to the registry.
+func Register(p Provider) {
+	mu.Lock()
+	defer mu.Unlock()
+	registry[p.ID()] = p
+}
+
+// Get returns a provider by ID.
+func Get(id string) (Provider, error) {
+	mu.RLock()
+	defer mu.RUnlock()
+	p, ok := registry[id]
+	if !ok {
+		return nil, fmt.Errorf("unknown provider: %s", id)
+	}
+	return p, nil
+}
+
+// List returns all registered provider IDs.
+func List() []string {
+	mu.RLock()
+	defer mu.RUnlock()
+	ids := make([]string, 0, len(registry))
+	for id := range registry {
+		ids = append(ids, id)
+	}
+	return ids
+}
+
+// Init registers all built-in providers.
+func Init() {
+	Register(&OpenAIProvider{})
+	Register(&AnthropicProvider{})
+}