import type Database from 'better-sqlite3';
import type { AiQuery } from '../../models/AiQuery';
import { type BrowserStorageState } from '../../models/BrowserStorageState';
import type { FlowMetadata, FlowsQuery } from '../../models/FlowMetadata';
import type { PaginatedResult } from '../../models/PaginatedResult';
import type { ToolCall } from '../../models/ToolCall';
import type { VideoSegment } from '../../models/VideoSegment';
import type { FlowsPersistence } from './FlowsPersistence';
/**
 * A persistence implementation that uses SQLite for all data storage, including binary files.
 */
export declare class FlowsPersistenceSqlite implements FlowsPersistence {
    private readonly db;
    private static readonly VIDEO_MIME_TYPE;
    private static readonly BROWSER_STATE_FILE_ID;
    private static readonly VIDEO_FILE_ID;
    private constructor();
    static create(db: Database.Database): Promise<FlowsPersistenceSqlite>;
    setEnvironmentDatum(key: string, value: string): Promise<void>;
    deleteEnvironmentDatum(key: string): Promise<void>;
    getEnvironmentDatum(key: string): Promise<string | undefined>;
    /**
     * Get all environment data.
     */
    getEnvironmentData(): Promise<Record<string, string>>;
    setFlowMetadata(flowMetadata: FlowMetadata): Promise<void>;
    getFlowMetadataById(flowId: string): Promise<FlowMetadata>;
    getFlowMetadataByName(flowName: string): Promise<FlowMetadata>;
    getFlowsMetadata(query: FlowsQuery): Promise<PaginatedResult<FlowMetadata>>;
    saveScreenShot(flowId: string, bytes: Buffer): Promise<string>;
    getScreenShot(flowId: string, screenShotId: string): Promise<Buffer | null>;
    setToolCall(flowId: string, toolCall: ToolCall): Promise<void>;
    getToolCalls(flowId: string): Promise<ToolCall[]>;
    deleteToolCall(flowId: string, toolCallId: string): Promise<void>;
    setAiQuery(flowId: string, aiQuery: AiQuery): Promise<void>;
    getAiQueries(flowId: string): Promise<AiQuery[]>;
    setVideo(flowId: string, bytes: Buffer): Promise<void>;
    getVideoSegment(flowId: string, startOffset: number, length: number): Promise<VideoSegment | null>;
    getFlowFile(flowId: string, fileId: string): Promise<Buffer | null>;
    setFlowFile(flowId: string, fileId: string, fileBytes: Buffer): Promise<void>;
    setBrowserState(flowId: string, browserState: BrowserStorageState): Promise<void>;
    getBrowserState(flowId: string): Promise<BrowserStorageState | null>;
    deleteFlow(flowId: string): Promise<void>;
    close(): void;
}
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