import { SmrtCollection } from '@happyvertical/smrt-core';
import { ReferralTouch } from '../models/ReferralTouch.js';
/** Input for {@link ReferralTouchCollection.findByTargetWindow}. */
export interface TouchWindowQuery {
    subjectKind: string;
    subjectId: string;
    /** Restrict to one program's touches. */
    programId: string;
    /** Only touches occurring at or after this instant. */
    since: Date;
}
export declare class ReferralTouchCollection extends SmrtCollection<ReferralTouch> {
    static readonly _itemClass: typeof ReferralTouch;
    /** All touches for a referrer, oldest first. */
    findByReferrer(referrerId: string): Promise<ReferralTouch[]>;
    /**
     * Every touch recorded against one subject identity, oldest first —
     * attribution's raw candidate stream.
     */
    findBySubject(subjectKind: string, subjectId: string): Promise<ReferralTouch[]>;
    /**
     * Touches for one subject within one program occurring at or after
     * `since`, oldest first. The date bound is applied in memory after the
     * indexed equality filters (sibling-module pattern — the semantics hold
     * whether an adapter returns ISO strings or Dates).
     */
    findByTargetWindow(query: TouchWindowQuery): Promise<ReferralTouch[]>;
}
export default ReferralTouchCollection;
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