import type { TokensaveCli } from "./cli.js";
import type { GraphArtifactStore } from "./artifact-store.js";
import type { IncidentLog } from "./incidents.js";
import type { GraphSection } from "../config/schema.js";
/**
 * Debounces PostToolUse Edit|Write events and forwards path batches to
 * TokensaveCli.sync. Owns:
 *   - In-memory Set<string> of pending paths (cap = config.hookQueueMax).
 *   - A single debounce Timer (window = config.debounceMs).
 *   - A 100ms poll loop reading .bober/graph/.hook-queue.jsonl.
 *
 * onPostToolUse is synchronous (fire-and-forget). flush() drains the queue
 * with a 5000ms total budget — called from GraphPipelineLifecycle.stop()
 * before the engine is killed.
 */
export declare class GraphHookHandler {
    private readonly cli;
    private readonly store;
    private readonly incidents;
    private readonly config;
    private readonly queue;
    private debounceTimer;
    private pollTimer;
    private overflowBatch;
    private syncing;
    private stopped;
    private readonly queueFilePath;
    private static readonly FLUSH_BUDGET_MS;
    private static readonly POLL_INTERVAL_MS;
    private static readonly OVERFLOW_EVICT;
    private static readonly OVERFLOW_WARN_EVERY;
    constructor(cli: TokensaveCli, store: GraphArtifactStore, incidents: IncidentLog, config: GraphSection, projectRoot: string);
    /** Begin polling the IPC queue file. Called once at lifecycle start(). */
    start(): void;
    /**
     * Synchronous fire-and-forget entry point.
     * Adds paths to queue; resets debounce timer; on cap-overflow drops oldest.
     * Returns immediately — NO awaits.
     */
    onPostToolUse(payload: {
        paths: string[];
    }): void;
    /** Drain queue with FLUSH_BUDGET_MS total budget. Called from lifecycle.stop(). */
    flush(): Promise<void>;
    private evictOldest;
    private runSync;
    private markPending;
    private drainIpcFile;
}
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