import { DateTime, IRunNextArgs } from '@rschedule/core';
import {
  IRunArgs,
  OccurrenceGenerator,
  OccurrenceGeneratorRunResult,
} from '../occurrence-generator';
/**
 * Simple class that lets us access the `value`, `runArgs`, and `done`
 * status of an OccurrenceGenerator iterator
 */
export declare class IterableWrapper {
  readonly runArgs: IRunArgs;
  done: boolean;
  value: DateTime | undefined;
  readonly stream: OccurrenceGeneratorRunResult;
  constructor(generator: OccurrenceGenerator, runArgs: IRunArgs);
  next(
    args?: IRunNextArgs,
  ): {
    done: boolean | undefined;
    value: DateTime | undefined;
  };
}
export declare function processYieldArgs(
  streams: IterableWrapper[],
  options?: {
    reverse?: boolean;
  },
  yieldArgs?: IRunNextArgs,
): void;
/** sorts ascending with completed iterables at the end */
export declare function streamsComparer(
  a: IterableWrapper,
  b: IterableWrapper,
): 0 | 1 | -1;
/** sorts descending with completed iterables at the start */
export declare function streamsReverseComparer(
  a: IterableWrapper,
  b: IterableWrapper,
): 0 | 1 | -1;
export declare function selectNextIterable(
  streams: IterableWrapper[],
  options?: {
    reverse?: boolean;
  },
  yieldArgs?: IRunNextArgs,
): IterableWrapper | undefined;
export declare function selectLastIterable(
  streams: IterableWrapper[],
  options?: {
    reverse?: boolean;
  },
  yieldArgs?: IRunNextArgs,
): IterableWrapper | undefined;
export declare function streamPastEnd(
  stream: IterableWrapper,
  options: {
    reverse?: boolean;
    start?: DateTime;
    end?: DateTime;
  },
): boolean;
export declare function streamPastSkipToDate(
  stream: IterableWrapper,
  skipToDate: DateTime,
  options: {
    reverse?: boolean;
  },
): boolean;