import { ToolOutputManager } from './tool-output-manager';
export interface ConversationCacheConfig {
    /** Maximum number of conversations to keep in memory (default: 100) */
    maxConversations?: number;
    /** Time-to-live for conversations in milliseconds (default: 2 hours) */
    ttlMs?: number;
    /** Probability of triggering cleanup on each access (default: 0.1 = 10%) */
    cleanupProbability?: number;
    /** Whether to enable debug logging (default: false) */
    enableLogging?: boolean;
}
export interface ConversationInfo {
    id: string;
    ageMinutes: number;
    hasCache: boolean;
    toolOutputCount?: number;
}
export interface ConversationCacheStatus {
    totalConversations: number;
    conversations: ConversationInfo[];
    config: {
        maxConversations: number;
        ttlHours: number;
        cleanupProbability: number;
    };
}
export interface ChatMessage {
    role: string;
    content: string;
    [key: string]: unknown;
}
/**
 * ConversationCache manages ToolOutputManager instances per conversation,
 * providing persistent caching across requests within the same conversation
 * while maintaining isolation between different conversations.
 */
export declare class ConversationCache {
    private conversationCaches;
    private conversationTimestamps;
    private config;
    constructor(config?: ConversationCacheConfig);
    /**
     * Simple hash function that works in both browser and Node.js
     */
    private simpleHash;
    /**
     * Get or create a ToolOutputManager for the given conversation ID.
     */
    getToolOutputManager(conversationId: string): Promise<ToolOutputManager>;
    /**
     * Clean up old conversations based on TTL and max conversation limits.
     */
    private cleanupOldConversations;
    /**
     * Get status information about the conversation cache.
     */
    getStatus(): Promise<ConversationCacheStatus>;
    /**
     * Manually clear all conversations from the cache.
     */
    clearAll(): void;
    /**
     * Get the current configuration.
     */
    getConfig(): Required<ConversationCacheConfig>;
}