import type { ArkmeRecordingCoverageInterval, ArkmeSourceItem } from '../types.js';
import { callArkme } from './api.js';
import { type DayActivityReader, type DayActivityQuery } from './calendar-activity-model.js';
export type ExistingDayTarget = {
    kind: 'source';
    source: ArkmeSourceItem;
} | {
    kind: 'recording';
    dateStamp: number;
    startAtMillis: number;
};
export declare function personalDateKey(date: Date): string;
/** recordings.day currently takes device-local midnight. Do not silently mix timezones. */
export declare function existingDayBounds(query: DayActivityQuery): [number, number];
/** Only join physically touching/overlapping intervals from the same source/status. Never fill a gap. */
export declare function continuousRecordingIntervals(intervals: readonly ArkmeRecordingCoverageInterval[]): ArkmeRecordingCoverageInterval[];
/** Uses existing backend reads through the Host. One session is retained per mounted calendar. */
export declare function createExistingDayActivityReader(accountScope: string, read?: typeof callArkme): DayActivityReader & {
    resolveTarget(ref: string): ExistingDayTarget | undefined;
};
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