Add admin UI

internal/admin/server.go

@@ -0,0 +1,59 @@
+package admin
+
+import (
+	"log/slog"
+	"runtime"
+	"time"
+
+	"github.com/ajac-zero/latticelm/internal/config"
+	"github.com/ajac-zero/latticelm/internal/conversation"
+	"github.com/ajac-zero/latticelm/internal/providers"
+)
+
+// ProviderRegistry is an interface for provider registries.
+type ProviderRegistry interface {
+	Get(name string) (providers.Provider, bool)
+	Models() []struct{ Provider, Model string }
+	ResolveModelID(model string) string
+	Default(model string) (providers.Provider, error)
+}
+
+// BuildInfo contains build-time information.
+type BuildInfo struct {
+	Version   string
+	BuildTime string
+	GitCommit string
+	GoVersion string
+}
+
+// AdminServer hosts the admin API and UI.
+type AdminServer struct {
+	registry  ProviderRegistry
+	convStore conversation.Store
+	cfg       *config.Config
+	logger    *slog.Logger
+	startTime time.Time
+	buildInfo BuildInfo
+}
+
+// New creates an AdminServer instance.
+func New(registry ProviderRegistry, convStore conversation.Store, cfg *config.Config, logger *slog.Logger, buildInfo BuildInfo) *AdminServer {
+	return &AdminServer{
+		registry:  registry,
+		convStore: convStore,
+		cfg:       cfg,
+		logger:    logger,
+		startTime: time.Now(),
+		buildInfo: buildInfo,
+	}
+}
+
+// GetBuildInfo returns a default BuildInfo if none provided.
+func DefaultBuildInfo() BuildInfo {
+	return BuildInfo{
+		Version:   "dev",
+		BuildTime: time.Now().Format(time.RFC3339),
+		GitCommit: "unknown",
+		GoVersion: runtime.Version(),
+	}
+}