import type { QuietHoursConfig } from "./types.ts";
/**
 * Evaluates do-not-disturb / quiet-hours conditions from a config.
 *
 * - If config is undefined or `enabled: false`, all checks return `false`
 *   (never quiet).
 * - Supports per-range day-of-week filtering.
 * - Supports midnight-crossover ranges (e.g., 22:00–07:00).
 * - Supports timezone-aware evaluation via `Intl.DateTimeFormat`.
 */
export declare class QuietHours {
    private config?;
    constructor(config?: QuietHoursConfig);
    /**
     * Check if the given time (default: now) falls within any configured
     * quiet range.
     *
     * Returns `false` immediately when:
     * - config is undefined
     * - config.enabled is false
     * - config.ranges is empty
     */
    isQuiet(now?: Date): boolean;
    /**
     * Return the Date when the currently active quiet period ends.
     * Returns `null` if not currently quiet.
     *
     * For midnight-crossover ranges, the end Date may be on the following day.
     * For full-day ranges (start === end), the end is 24 hours from now.
     */
    nextActiveTime(now?: Date): Date | null;
    /** No-op for interface consistency. */
    dispose(): void;
    /**
     * Build a Date representing `endMinutes` minutes since midnight.
     *
     * @param base — reference date (used for year/month/day)
     * @param endMinutes — minutes since midnight for the end time
     * @param isCrossOver — whether the range crosses midnight (end < start)
     */
    private buildEndDate;
}
//# sourceMappingURL=quiet-hours.d.ts.map