/**
 * Asset Build Pipeline
 *
 * Handles building JavaScript, TypeScript, CSS, and static assets
 * with caching, deduplication, and content-type detection.
 */
import { type BunFile } from "bun";
export declare const buildCache: Record<string, {
    outputPath: string;
    content: ArrayBuffer;
}>;
export declare const builtAssets: Record<string, {
    content: ArrayBuffer;
    contentType: string;
}>;
export declare const clientScriptsUsingReact: Set<string>;
export declare function getContentType(ext: string): string;
/**
 * Build a client mount script (.client.tsx).
 *
 * If the client script imports from React, React is externalized and resolved
 * through import maps.
 */
export declare function buildClientScript(clientPath: string): Promise<string>;
/**
 * Build JavaScript/TypeScript files using Bun's bundler.
 */
export declare function buildScript(filePath: string, allExternal?: boolean): Promise<string>;
/**
 * Build CSS files with PostCSS processing.
 */
export declare function buildStyle(filePath: string): Promise<string>;
/**
 * Build route-scoped CSS.
 */
export declare function buildScopedStyle(filePath: string, routePattern: string): Promise<string>;
export interface CSSModuleResult {
    css: string;
    classMap: Record<string, string>;
    cssUrl: string;
}
/**
 * Build a .module.css file:
 * 1. Rewrites locally-authored class selectors on the PostCSS AST
 * 2. Processes the rewritten source through PostCSS/Tailwind
 * 3. Returns processed CSS + class name mapping + built asset URL
 */
export declare function buildCSSModule(filePath: string): Promise<CSSModuleResult>;
/**
 * Build a static asset by storing it in memory with a hashed URL.
 */
export declare function buildAsset(file?: BunFile): Promise<string>;
/**
 * @deprecated Use buildScript(), buildStyle(), or buildAsset() instead.
 */
export declare function asset(fileOrPath: BunFile | string): Promise<string>;
export declare function clearCaches(): void;
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