import { SmrtCollection } from '@happyvertical/smrt-core';
import { SalesActivity } from '../models/SalesActivity.js';
import { SalesActivitySubjectKind } from '../types.js';
export declare class SalesActivityCollection extends SmrtCollection<SalesActivity> {
    static readonly _itemClass: typeof SalesActivity;
    /**
     * Full trail for one subject, oldest first (chronological reading order).
     *
     * @param subjectKind - `'lead'` or `'opportunity'`
     * @param subjectId - Subject row id
     */
    findBySubject(subjectKind: SalesActivitySubjectKind, subjectId: string): Promise<SalesActivity[]>;
    /**
     * Open next actions for one subject: `task` activities with a due date
     * (`dueAt` set) that have not been completed (`completedAt` null),
     * soonest due first with a deterministic id tie-breaker.
     *
     * @param subjectKind - `'lead'` or `'opportunity'`
     * @param subjectId - Subject row id
     */
    findOpenTasks(subjectKind: SalesActivitySubjectKind, subjectId: string): Promise<SalesActivity[]>;
}
export default SalesActivityCollection;
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