wongjiahau/ttap-web

import { RawSlot } from "./rawSlot";

// tslint:disable-next-line:interface-name
export interface Timetable {
  SlotUids: number[];
  DayTimeMatrix: number /* 7 */[];
}

// The dimension of uncompressedDayTimeMatrix is 7 multiple the number of study week
export function newTimetable(
  Uids: number[],
  uncompressedDayTimeMatrix: number[]
): Timetable {
  return {
    SlotUids: Uids,
    DayTimeMatrix: CompressDayTimeMatrix(uncompressedDayTimeMatrix),
  };
}

export function CompressDayTimeMatrix(dayTimeMatrix: number[]): number[] {
  const result = [0, 0, 0, 0, 0, 0, 0];
  for (let i = 0; i < dayTimeMatrix.length; i++) {
    result[i % 7] |= dayTimeMatrix[i]; // 7 means the numberOfDayPerWeek
  }
  return result;
}