attachadapter

type Adapter struct {
	// contains filtered or unexported fields
}

type Config struct {
	// AppName / UserID / SessionID form the ADK session key —
	// attach uses (AppName, SessionID) for URL lookup and the
	// broadcaster uses all three to filter the eventlog stream.
	AppName   string
	UserID    string
	SessionID string

	// EventLog is the daemon-wide eventlog handle. Attach requires
	// it for live-tail (the broadcaster pumps from Stream.Watch).
	EventLog *eventlog.Handle

	// RunTurn executes one turn for this session: append message as
	// user content, drive the runner until the turn completes, and
	// return what is known about the turn's token usage. The
	// adapter guarantees calls are serialized per session. ctx is
	// canceled when an operator interrupts the turn (POST
	// /interrupt) or the daemon shuts down.
	RunTurn func(ctx context.Context, message string) (TurnResult, error)

	// BaseContext bounds every turn this adapter runs; defaults to
	// context.Background(). Pass the daemon's serve context so
	// in-flight turns die with the process's graceful shutdown.
	BaseContext context.Context

	// ModelName, when set, is reported on status frames.
	ModelName string

	// Description, when set, feeds the agent card + session list.
	Description string

	// UsageFn, when set, supplies the GET /sessions/.../usage
	// snapshot (typically from the session's budget meter). Nil
	// reports zero usage rather than 501 — same behavior as a
	// core-agent registrant with an empty tracker.
	UsageFn func() attach.UsageInfo

	// ToolsFn, when set, supplies GET /sessions/.../tools (typically
	// the workload bundle's tool catalog). Nil reports an empty list.
	ToolsFn func() []attach.ToolInfo
}

type TurnResult struct {
	TokensIn  int
	TokensOut int
}