/**
 * Basic registered agent information
 */
export interface RegisteredAgent {
    name: string;
    accountId: string;
    inboundTopicId: string;
    outboundTopicId: string;
    profileTopicId?: string;
    privateKey?: string;
}
/**
 * Connection status types
 */
export type ConnectionStatus = 'established' | 'pending' | 'needs confirmation' | 'unknown';
/**
 * Basic agent profile information
 */
export interface AgentProfileInfo {
    name?: string;
    bio?: string;
    avatar?: string;
    type?: string;
}
/**
 * Information about a connection request
 */
export interface ConnectionRequestInfo {
    id: number;
    requestorId: string;
    requestorName: string;
    timestamp: Date;
    memo?: string;
    profile?: AgentProfileInfo;
}
/**
 * Information about an active connection
 */
export interface ActiveConnection {
    targetAccountId: string;
    targetAgentName: string;
    targetInboundTopicId: string;
    connectionTopicId: string;
    status?: ConnectionStatus;
    created?: Date;
    lastActivity?: Date;
    isPending?: boolean;
    needsConfirmation?: boolean;
    profileInfo?: AgentProfileInfo;
}
/**
 * Options for environment variable persistence
 */
export interface EnvPersistenceOptions {
    prefix?: string;
    envFilePath?: string;
}
/**
 * Base persistence options interface
 */
export interface PersistenceOptions {
    type: string;
}
/**
 * Environment file persistence options
 */
export interface EnvFilePersistenceOptions extends PersistenceOptions {
    type: 'env-file';
    prefix?: string;
    envFilePath?: string;
}
/**
 * Persistence options union type
 */
export type AgentPersistenceOptions = EnvFilePersistenceOptions;
/**
 * Core state management interface for the standards agent toolkit.
 * All tools that need to maintain state should use an implementation of this interface.
 */
export interface IStateManager {
    /**
     * Sets the current active agent, clearing any previous connections.
     */
    setCurrentAgent(agent: RegisteredAgent | null): void;
    /**
     * Gets the current active agent.
     */
    getCurrentAgent(): RegisteredAgent | null;
    /**
     * Adds a new active connection to the state.
     * Will not add duplicates based on connectionTopicId.
     */
    addActiveConnection(connection: ActiveConnection): void;
    /**
     * Updates an existing connection or adds it if not found.
     * Preserves existing properties when updating.
     */
    updateOrAddConnection(connection: ActiveConnection): void;
    /**
     * Lists all active connections for the current agent.
     */
    listConnections(): ActiveConnection[];
    /**
     * Finds a connection by identifier, which can be:
     * - A 1-based index number as shown in the connection list
     * - A target account ID
     * - A connection topic ID
     */
    getConnectionByIdentifier(identifier: string): ActiveConnection | undefined;
    /**
     * Gets the last processed message timestamp for a connection.
     */
    getLastTimestamp(connectionTopicId: string): number;
    /**
     * Updates the last processed message timestamp for a connection.
     */
    updateTimestamp(connectionTopicId: string, timestampNanos: number): void;
    /**
     * Stores a connection request in the state.
     */
    addConnectionRequest(request: ConnectionRequestInfo): void;
    /**
     * Lists all pending connection requests.
     */
    listConnectionRequests(): ConnectionRequestInfo[];
    /**
     * Finds a connection request by its ID.
     */
    getConnectionRequestById(requestId: number): ConnectionRequestInfo | undefined;
    /**
     * Removes a connection request from the state.
     */
    removeConnectionRequest(requestId: number): void;
    /**
     * Clears all connection requests from the state.
     */
    clearConnectionRequests(): void;
    /**
     * Persists agent data to storage
     * Implementation may vary depending on the state manager
     */
    persistAgentData?(agent: RegisteredAgent, options?: AgentPersistenceOptions): Promise<void>;
}