/** Module Server - serves transformed ESM modules at /_vf_modules/* URLs */
import type { RuntimeAdapter } from "../../platform/adapters/base.js";
import { type DependencyPinningSourceInput } from "../../transforms/esm/package-registry.js";
import type { VeryfrontConfig } from "../../config/index.js";
import { type BrowserModuleBundleLimitOverrides } from "../../server/shared/browser-module-bundler.js";
/**
 * Embedded polyfills for compiled Deno binaries.
 *
 * In compiled binaries, framework source files are not accessible via filesystem
 * because they're not statically imported (only referenced as path strings).
 * These inline polyfills ensure browser compatibility without filesystem I/O.
 *
 * @see src/platform/polyfills/embedded-polyfills.test.ts - validates completeness
 * @see getRequiredPolyfillPaths() in node-builtin-strategy.ts - source of truth for required paths
 */
export declare const EMBEDDED_POLYFILLS: Record<string, string>;
export interface ModuleServerOptions {
    /** Project identifier (directory path, legacy naming) */
    projectId: string;
    /** Project root directory */
    projectDir: string;
    /** Runtime adapter */
    adapter: RuntimeAdapter;
    /** Development mode. Defaults to `false`: an omitted flag must not serve
     * unminified modules or leak raw transform errors to a browser. */
    dev?: boolean;
    /** Project UUID for multi-project mode (from domain lookup) */
    projectUUID?: string;
    /** Project slug for multi-project mode (from proxy headers or domain lookup) */
    projectSlug?: string;
    /** Branch name for branch-aware file resolution */
    branch?: string | null;
    /** Release ID for production mode (published files) */
    releaseId?: string | null;
    /** Stable release/branch identity paired with dependency snapshot history. */
    contentSourceId?: string;
    /** Explicitly selects host FS for local projects and adapter FS for proxy projects. */
    isLocalProject?: boolean;
    /**
     * Whether modules are being served by the shared multi-project runtime.
     * Production release admission fails closed when this is omitted; only an
     * explicitly standalone runtime may bypass the hosted release manifest.
     */
    isProxyMode?: boolean;
    /**
     * Enables the legacy SSR transform only for an explicitly admitted local
     * project. Never derive this capability from request headers or query data.
     */
    allowSSRModuleMode?: boolean;
    /**
     * Restrict module imports to specific directories (opt-in security).
     * When not set, users can import from any directory in the project.
     */
    allowedImportDirs?: string[];
    /** React version for transforms (from project config) */
    reactVersion?: string;
    /** Project config whose explicit React override wins over dependency detection. */
    config?: VeryfrontConfig;
    /** Canonical request-scoped package source supplied by the server handler. */
    dependencyPinningSource?: DependencyPinningSourceInput;
    /** Request mode ("preview" | "production") for studio features like node positions */
    mode?: string;
    /** Optional operator tightening for request-triggered browser graph compilation. */
    browserModuleBundleLimits?: BrowserModuleBundleLimitOverrides;
}
/** Serve transformed module at /_vf_modules/* path */
export declare function serveModule(req: Request, options: ModuleServerOptions): Promise<Response>;
/**
 * Check if request is for a module
 *
 * @param req - HTTP request
 * @returns true if request path starts with /_vf_modules/
 */
export declare function isModuleRequest(req: Request): boolean;
/**
 * Content type for a dev module response.
 *
 * Exported for testing.
 */
export declare function getDevModuleContentType(modulePath: string): string;
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