/**
 * Lightweight Playwright renderer for SPA-aware page fetching.
 *
 * Ported from the Python `render_page.py` in claude-seo. Uses a standalone
 * Playwright browser context (not shared with the browser extension) to keep
 * the SEO extension self-contained.
 */
import type { SeoConfig } from "../config.js";
import type { FetchResult, MeasuredPerformance } from "../types.js";
export interface RenderOptions {
    viewport?: "desktop" | "mobile";
    timeout?: number;
    blockResources?: string[];
    /** Whether to capture the accessibility tree (for agent UX audits). */
    captureA11y?: boolean;
    /** Whether to capture console errors. */
    captureConsole?: boolean;
    /** Whether to capture Web Vitals and real browser performance metrics. */
    capturePerformance?: boolean;
    /** User agent override. */
    userAgent?: string;
    /** Optional AbortSignal to cancel an in-flight render. */
    signal?: AbortSignal;
}
export interface RenderResult extends FetchResult {
    isSpa: boolean;
    rawContent: string;
    consoleErrors: string[];
    renderMs: number;
    accessibilityTree: unknown | null;
    measuredPerformance?: MeasuredPerformance;
}
/** Close the shared browser instance (called on session shutdown). */
export declare function closeRenderer(): Promise<void>;
/** Check whether Playwright Chromium is available. */
export declare function isRendererAvailable(): Promise<boolean>;
/**
 * Render a page with Playwright, returning the full DOM after JS execution.
 *
 * This is slower than a plain HTTP fetch but necessary for single-page
 * applications where critical content is injected via JavaScript.
 */
export declare function renderPage(url: string, config: SeoConfig, opts?: RenderOptions): Promise<RenderResult>;
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