import type { RuntimeAdapter } from "../../platform/adapters/base.js";
import type { RouteDiscovery } from "./route-discovery.js";
/**
 * Check if a path should be ignored for HMR purposes — either because it lives
 * in a generated/output directory or because it is a generated-artifact file.
 *
 * Exported for unit testing.
 */
export declare function shouldIgnorePath(path: string): boolean;
/**
 * Whether a path lives inside a generated build-output directory, evaluated
 * relative to `projectDir` so directories *above* the project (which the user
 * cannot control, e.g. a checkout under `/some/dist/...`) are never matched.
 *
 * Exported for unit testing.
 */
export declare function isIgnoredOutputDir(projectDir: string, fullPath: string): boolean;
export declare class FileWatchSetup {
    private projectDir;
    private adapter;
    private routeDiscovery;
    private debounceMs;
    private invalidateHandler;
    private rediscoverPrimitives?;
    private fileWatcher?;
    private watcherController?;
    private optimizedWatcher?;
    private batchCount;
    private primitiveDirs;
    /** Content hashes to skip re-renders when file content is unchanged */
    private contentHashes;
    constructor(projectDir: string, adapter: RuntimeAdapter, routeDiscovery: RouteDiscovery, debounceMs: number, invalidateHandler?: () => void, rediscoverPrimitives?: (() => Promise<void>) | undefined, primitiveDirNames?: string[]);
    setup(): Promise<void>;
    private getWatchPaths;
    private processFileWatcher;
    private refreshAndReload;
    /**
     * Check if a path is inside a configured primitive directory (tools/, agents/, etc.)
     * Uses path segment matching to avoid false positives from substrings.
     */
    private isPrimitivePath;
    /**
     * Check if a path is inside a runtime data directory (data/, etc.)
     * that contains generated content (embedding indices) rather than source code.
     */
    private isRuntimeDataPath;
    /** FNV-1a hash for fast content comparison */
    private hashContent;
    /** Filter out files whose content hasn't actually changed */
    private filterChangedFiles;
    private handleBatchedFileChanges;
    private handleImmediateFileChange;
    getMetrics(): import("./types.js").FileWatcherMetrics | null;
    cleanup(): void;
}
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