import { LocalBrowser, Page, RemoteBrowser } from '@agent-infra/browser';
import { ConsoleLogger, AgentEventStream, Tool } from '@tarko/mcp-agent';
/**
 * Browser initialization options
 */
export interface GUIAgentOptions {
    /** browser instance to use */
    browser: LocalBrowser | RemoteBrowser;
    /** The logger instance to use */
    logger: ConsoleLogger;
    /** Whether to run browser in headless mode */
    headless?: boolean;
    /** Scaling factors for coordinates */
    factors?: [number, number];
    /** Event stream instance for injecting environment info */
    eventStream?: AgentEventStream.Processor;
}
/**
 * Browser GUI Agent for visual browser automation
 */
export declare class BrowserGUIAgent {
    private options;
    private browser;
    private browserOperator;
    private screenWidth?;
    private screenHeight?;
    private browserGUIAgentTool;
    private logger;
    private factors;
    private eventStream?;
    currentScreenshot?: string;
    /**
     * Creates a new GUI Agent
     * @param options - Configuration options
     */
    constructor(options: GUIAgentOptions);
    /**
     * Set the event stream instance
     * @param eventStream - The event stream instance
     */
    setEventStream(eventStream: AgentEventStream.Processor): void;
    /**
     * Get the tool definition for GUI Agent browser control
     */
    getTool(): Tool;
    screenshot(): Promise<{
        originalSize: number;
        screenshotTime: string;
        compressedSize: number;
        compressedBase64: string;
        currentUrl: string | undefined;
    }>;
    /**
     * Hook for starting each agent loop
     * - Takes a screenshot
     * - Extracts image dimensions
     * - Sends the screenshot to the event stream
     */
    onEachAgentLoopStart(eventStream: AgentEventStream.Processor, isReplaySnapshot?: boolean): Promise<void>;
    /**
     * Add data URI prefix to base64 image if not present
     */
    private addBase64ImagePrefix;
    /**
     * Parse operation string into a structured operation object
     */
    private parseAction;
    /**
     * Extract width and height information from base64 encoded image
     */
    private extractImageDimensionsFromBase64;
    /**
     * Get access to the underlying Puppeteer page
     * This allows custom browser tools to be implemented
     * without relying on the MCP Browser server
     */
    getPage(): Promise<Page>;
}
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