import * as Db from '../../db/Db.js';
import type * as Metrics from '../../Metrics.js';
import type * as Webhooks from '../Webhooks.js';
import type * as Provider from './Provider.js';
/** Queue message that advances one registered funding transfer. */
export type Message = {
    /** Zero-based destination reconciliation attempt. */
    attempt?: number | undefined;
    /** Funding transfer id (`ftr_…`). */
    transferId: string;
    /** Funding transfer reconciliation discriminator. */
    type: 'funding:transfer:reconcile';
};
/** Creates a tracker that verifies and completes registered funding transfers. */
export declare function createTracker(options: createTracker.Options): createTracker.Tracker;
export declare namespace createTracker {
    /** Tracker dependencies and queue dispatch. */
    type Options = {
        /** Authoritative database or per-invocation database factory. */
        db: Db.Source;
        /** Enqueues one delayed reconciliation follow-up. */
        dispatch?: ((message: Message, options: {
            delaySeconds: number;
        }) => Promise<void>) | undefined;
        /** Enqueues webhook updates staged with transfer mutations. */
        dispatchTransferUpdates?: ((references: readonly Webhooks.QueueReference[]) => Promise<number>) | undefined;
        /** Fetch implementation override for chain RPC requests. */
        fetch?: Provider.Fetch | undefined;
        /** Optional bounded operational metrics. */
        metrics?: Metrics.Metrics | undefined;
    };
    /** Reconciles one registered funding transfer. */
    type Tracker = {
        /** Verifies or defers one destination delivery. */
        reconcile(message: Message): Promise<Result>;
        /** Enqueues processing transfers whose initial dispatch may have failed. */
        tick(): Promise<{
            checked: number;
        }>;
    };
    /** One reconciliation disposition. */
    type Result = {
        type: 'completed';
    } | {
        type: 'ignored';
    } | {
        type: 'pending';
    } | {
        type: 'reopened';
    };
}
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