/**
 * SQLite Database Adapter
 * Persistent storage using SQLite for sessions, messages, and runs
 */
export interface SQLiteConfig {
    filename: string;
    verbose?: boolean;
}
export interface DbMessage {
    id: string;
    sessionId: string;
    role: 'user' | 'assistant' | 'system' | 'tool';
    content: string;
    toolCalls?: string;
    createdAt: number;
    metadata?: string;
}
export interface DbRun {
    id: string;
    sessionId: string;
    agentId?: string;
    status: 'pending' | 'running' | 'completed' | 'failed';
    input?: string;
    output?: string;
    error?: string;
    startedAt: number;
    completedAt?: number;
    metadata?: string;
}
export interface DbTrace {
    id: string;
    runId: string;
    spanId: string;
    parentSpanId?: string;
    name: string;
    type: string;
    startedAt: number;
    completedAt?: number;
    attributes?: string;
    status?: string;
}
/**
 * SQLite Adapter - Uses better-sqlite3 for synchronous operations
 * Falls back to sql.js for browser compatibility
 */
export declare class SQLiteAdapter {
    private db;
    private filename;
    private verbose;
    private initialized;
    constructor(config: SQLiteConfig);
    initialize(): Promise<void>;
    private createTables;
    createSession(id: string, metadata?: Record<string, any>): Promise<void>;
    getSession(id: string): Promise<any | null>;
    addMessage(message: DbMessage): Promise<void>;
    getMessages(sessionId: string, limit?: number): Promise<DbMessage[]>;
    createRun(run: DbRun): Promise<void>;
    updateRun(id: string, updates: Partial<DbRun>): Promise<void>;
    getRun(id: string): Promise<DbRun | null>;
    addTrace(trace: DbTrace): Promise<void>;
    getTraces(runId: string): Promise<DbTrace[]>;
    close(): Promise<void>;
    clear(): Promise<void>;
}
export declare function createSQLiteAdapter(config: SQLiteConfig): SQLiteAdapter;