wongjiahau/ttap-web

import { IGroupedTimetable } from "../model/groupedTimetable";
import { Timetable } from "../model/timetable";

export function GroupSimilarTimetables(
  timetables: Timetable[]
): IGroupedTimetable[] {
  const partition: { [matrix: string]: IGroupedTimetable } = {};
  for (let i = 0; i < timetables.length; i++) {
    const t = timetables[i];
    const matrix = t.DayTimeMatrix.toString();
    if (partition[matrix] !== undefined) {
      partition[matrix].ListOfSlotUids.push(t.SlotUids);
    } else {
      partition[matrix] = {
        DayTimeMatrix: t.DayTimeMatrix,
        ListOfSlotUids: [t.SlotUids],
      };
    }
  }
  return Object.keys(partition).map((key) => partition[key]);
}