import type WebSocket from "ws";
import type { EndpointBackgroundExchangeMode, EndpointExecutionSurface, RuntimeEndpointCapability, WorkspaceMetadata } from "../runtime-endpoint-client.js";
import { CorrelationRingBuffer } from "./correlation-ring.js";
export interface DisplayMetadata {
    session_name?: string;
    kind: string;
    started_at: string;
    workspace?: WorkspaceMetadata;
    tracking_ref?: string;
    task_hint?: string;
}
export interface BrokerEndpointEntry {
    endpoint_id: string;
    endpoint_nonce: string;
    endpoint_owner_token: string;
    agent_id: string;
    plugin_pid: number;
    ipc_ws: WebSocket;
    state: "active" | "reconnecting";
    state_since: Date;
    grace_deadline?: Date;
    runtime_capabilities?: RuntimeEndpointCapability[];
    execution_surface?: EndpointExecutionSurface;
    runtime_session_id?: string;
    background_exchange_mode?: EndpointBackgroundExchangeMode;
    display_metadata: DisplayMetadata;
    correlation_ring: CorrelationRingBuffer;
}
export interface RegisterArgs {
    endpoint_id: string;
    endpoint_nonce?: string;
    endpoint_owner_token?: string;
    agent_id: string;
    plugin_pid: number;
    ipc_ws: WebSocket;
    runtime_capabilities?: RuntimeEndpointCapability[];
    execution_surface?: EndpointExecutionSurface;
    runtime_session_id?: string;
    background_exchange_mode?: EndpointBackgroundExchangeMode;
    display_metadata: DisplayMetadata;
}
export declare class EndpointRegistry {
    private readonly byId;
    register(args: RegisterArgs): BrokerEndpointEntry;
    get(endpoint_id: string): BrokerEndpointEntry | undefined;
    listActive(): BrokerEndpointEntry[];
    listActiveByPluginPid(plugin_pid: number): BrokerEndpointEntry[];
    unregister(endpoint_id: string): BrokerEndpointEntry | undefined;
    markReconnecting(endpoint_id: string, grace_deadline: Date): BrokerEndpointEntry;
    markActive(endpoint_id: string, new_ws: WebSocket): BrokerEndpointEntry;
    preconditionForReattach(endpoint_id: string, plugin_pid: number): BrokerEndpointEntry | undefined;
    getReattachStatus(endpoint_id: string, plugin_pid: number): {
        ok: true;
        entry: BrokerEndpointEntry;
    } | {
        ok: false;
        reason: "endpoint_unknown";
    } | {
        ok: false;
        reason: "reattach_pid_mismatch";
    } | {
        ok: false;
        reason: "endpoint_not_reconnecting";
    };
    list(): BrokerEndpointEntry[];
    size(): number;
}
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