/**
 * SwarmUI API Client
 *
 * Handles communication with the SwarmUI API, including session management,
 * image generation, model listing, and other API operations.
 */
import { AxiosRequestConfig } from 'axios';
import { ImageGenerationOptions, ModelInfo, SchedulerInfo, EngineStatus, ImageGenerationResponse } from '../types/index.js';
export interface ListModelsOptions {
    path?: string;
    depth?: number;
    subtype?: string;
    sortBy?: string;
    sortReverse?: boolean;
    allowRemote?: boolean;
}
export interface ListModelsResponse {
    files: ModelInfo[];
    folders: string[];
}
export declare class SwarmUIClient {
    private baseUrl;
    private client;
    private sessionId;
    private sessionRefreshTimer;
    private readonly sessionRefreshInterval;
    /**
     * Create a new SwarmUI API client
     * @param baseUrl Base URL of the SwarmUI API server
     */
    constructor(baseUrl: string);
    /**
     * Get a new session ID from the SwarmUI API
     * @returns Session ID string
     */
    private getNewSession;
    /**
     * Ensure we have a valid session ID
     * @returns Valid session ID
     */
    private ensureSession;
    /**
     * Call the SwarmUI API
     * @param endpoint API endpoint name (without the /API/ prefix)
     * @param data Request data
     * @param config Additional Axios request configuration
     * @returns API response
     */
    callApi<T = unknown>(endpoint: string, data?: Record<string, any>, config?: AxiosRequestConfig): Promise<T>;
    /**
     * Download an image from the SwarmUI API
     * @param imagePath Image path returned by the API
     * @returns Image data as a Buffer
     */
    downloadImage(imagePath: string): Promise<Buffer>;
    /**
     * Download and encode an image to base64
     * @param imagePath Image path returned by the API
     * @returns Base64 encoded image string (without data URI prefix)
     */
    downloadAndEncodeImage(imagePath: string): Promise<string>;
    /**
     * List available models and folders
     * @param options Options for listing models including path, depth, subtype, sortBy, sortReverse, allowRemote.
     * @returns Object containing lists of available models (files) and folders
     */
    listModels(options?: ListModelsOptions): Promise<ListModelsResponse>;
    /**
     * List available schedulers
     * @returns List of available schedulers
     */
    listSchedulers(): Promise<SchedulerInfo[]>;
    /**
     * Generate an image from a text prompt
     * @param prompt Text prompt
     * @param options Generation options
     * @returns Image generation response with paths to generated images
     */
    generateImage(prompt: string, options?: ImageGenerationOptions): Promise<ImageGenerationResponse>;
    /**
     * Get the status of the text-to-image engine
     * @returns Engine status
     */
    getEngineStatus(): Promise<EngineStatus>;
    /**
     * Check server health
     * @returns True if server is healthy
     */
    checkHealth(): Promise<boolean>;
    /**
     * Clean up resources
     */
    destroy(): void;
}