mirror of
https://gitlab.dit.htwk-leipzig.de/htwk-software/htwkalender-pwa.git
synced 2025-07-16 09:38:51 +02:00
102 lines
3.3 KiB
TypeScript
102 lines
3.3 KiB
TypeScript
//Calendar implementation for the HTWK Leipzig timetable. Evaluation and display of the individual dates in iCal format.
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//Copyright (C) 2024 HTWKalender support@htwkalender.de
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//This program is free software: you can redistribute it and/or modify
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//it under the terms of the GNU Affero General Public License as published by
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//the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU Affero General Public License for more details.
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//You should have received a copy of the GNU Affero General Public License
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//along with this program. If not, see <https://www.gnu.org/licenses/>.
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import { BSON } from "bson";
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import { RoomOccupancyList } from "@/model/roomOccupancyList.ts";
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import { addMonths } from "date-fns";
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import { formatYearMonthDay } from "@/helpers/dates";
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const END_OF_SUMMER_SEMESTER = "0930";
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const END_OF_WINTER_SEMESTER = "0331";
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/**
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* check if date is in winter semester before summer semester
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* @param date - The date to check
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* @returns boolean - true if date is in winter semester
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*/
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export function isBeforeSummer(date: Date): boolean {
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const formattedDate = formatYearMonthDay(date).slice(4);
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return formattedDate <= END_OF_WINTER_SEMESTER;
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}
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/**
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* check if date is in winter semester after summer semester
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* @param date - The date to check
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* @returns boolean - true if date is in winter semester
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*/
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export function isAfterSummer(date: Date): boolean {
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const formattedDate = formatYearMonthDay(date).slice(4);
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return formattedDate > END_OF_SUMMER_SEMESTER;
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}
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/**
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* Gets the start date of the current semester
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* @param date - The date to check
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* @returns Date - The start date of the current semester
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*/
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export function getSemesterStart(date: Date): Date {
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if (isBeforeSummer(date)) {
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return new Date(date.getFullYear() - 1, 9, 1);
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} else if (isAfterSummer(date)) {
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return new Date(date.getFullYear(), 9, 1);
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} else {
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return new Date(date.getFullYear(), 3, 1);
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}
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}
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/**
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* Fetches the room occupancy for a given date range.
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* @param from_date the start date of the date range
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* @param to_date the end date of the date range
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* @returns RoomOccupancyList - the room occupancy list
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*/
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export async function fetchRoomOccupancy(
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from_date?: string,
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to_date?: string,
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): Promise<RoomOccupancyList> {
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if (from_date == undefined) {
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const new_from_date = getSemesterStart(new Date());
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from_date = new_from_date.toISOString();
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}
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if (to_date == undefined) {
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const new_to_date = getSemesterStart(addMonths(new Date(), 6));
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to_date = new_to_date.toISOString();
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}
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let roomOccupancyList: RoomOccupancyList = new RoomOccupancyList(
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new Date(),
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0,
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0,
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[],
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);
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await fetch("/api/schedule/rooms?from=" + from_date + "&to=" + to_date)
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.then((response) => {
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return response.arrayBuffer();
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})
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.then((roomsResponse: ArrayBuffer | null) => {
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if (roomsResponse == null) {
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return null;
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}
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const data = new Uint8Array(roomsResponse);
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roomOccupancyList = RoomOccupancyList.fromJSON(BSON.deserialize(data));
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return roomOccupancyList;
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});
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return roomOccupancyList;
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}
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