mirror of
https://gitlab.dit.htwk-leipzig.de/htwk-software/htwkalender-pwa.git
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57 lines
2.1 KiB
Go
57 lines
2.1 KiB
Go
//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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package functions
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import (
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"time"
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)
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const START_OF_SUMMER_SEMESTER_MONTH = time.April
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const START_OF_WINTER_SEMESTER_MONTH = time.October
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// GetCurrentSemesterString returns the current semester as string
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// if current month is between 10 and 03 -> winter semester "ws"
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func GetCurrentSemesterString() string {
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if now := time.Now(); isBeforeSummerSemester(now) || isAfterSummerSemester(now) {
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return "ws"
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} else {
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return "ss"
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}
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}
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// GetSemesterStart gibt das Startdatum des aktuellen Semesters zurück
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func GetSemesterStart(date time.Time) time.Time {
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if isBeforeSummerSemester(date) {
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return time.Date(date.Year()-1, START_OF_WINTER_SEMESTER_MONTH, 1, 0, 0, 0, 0, date.Location())
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} else if isAfterSummerSemester(date) {
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return time.Date(date.Year(), START_OF_WINTER_SEMESTER_MONTH, 1, 0, 0, 0, 0, date.Location())
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} else {
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return time.Date(date.Year(), START_OF_SUMMER_SEMESTER_MONTH, 1, 0, 0, 0, 0, date.Location())
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}
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}
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// Check if the given date is before the start of summer semester
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func isBeforeSummerSemester(date time.Time) bool {
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return date.Month() < START_OF_SUMMER_SEMESTER_MONTH
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}
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// Check if the given date is after the end of summer semester
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func isAfterSummerSemester(date time.Time) bool {
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return date.Month() >= START_OF_WINTER_SEMESTER_MONTH
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}
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