import { SmartCronOptions } from './smart-cron.interface';
/**
 * Applies a CRON-based task scheduler with smart defaults.
 *
 * Generates a CRON expression based on a validated minute interval, optional hour range,
 * weekday restrictions, and a UTC offset-based timezone.
 *
 * @example
 * ```ts
 * @SmartCron({
 *   intervalInMinutes: 15,
 *   fromHour: 9,
 *   toHour: 17,
 *   weekdaysOnly: true,
 *   timezone: -3
 * })
 * handleTask() {
 *   // Executes every 15 minutes from 09:00 to 17:00, Mon–Fri, in UTC-3
 * }
 * ```
 *
 * @param options - Scheduling configuration.
 * @param options.intervalInMinutes - Minute interval for execution. Must be included in `ALLOWED_MINUTES`.
 * @param options.fromHour - Start hour (inclusive), 0–23. Defaults to 0.
 * @param options.fromMinute - Start minute (inclusive), 0–59. Defaults to 0.
 * @param options.toHour - End hour (inclusive), 0–23. Defaults to 23.
 * @param options.toMinute - End minute (inclusive), 0–59. Defaults to 59.
 * @param options.weekdaysOnly - If true, limits execution to weekdays (Monday to Friday). Defaults to false.
 * @param options.timezone - UTC offset applied to scheduling (e.g. `-3` for UTC-3, `0` for UTC). Range: -12 to +14. Defaults to 0 (UTC).
 *
 * @returns A method decorator that schedules the task using the generated CRON expression(s).
 *
 * @throws Error if `intervalInMinutes` is not allowed.
 */
export declare function SmartCron(options: SmartCronOptions): <TFunction extends Function, Y>(target: TFunction | object, propertyKey?: string | symbol, descriptor?: TypedPropertyDescriptor<Y>) => void;