Files
timetracker/public/js/utils.js
Felix Schlusche e1be63b1ca Add utility functions for date formatting, time rounding, and notifications
- Implemented functions to format dates between YYYY-MM-DD and DD.MM.YYYY
- Added functions to get today's date in ISO format
- Created functions to round time to the nearest 15 minutes
- Developed a function to format time as HH:MM
- Added a function to format duration in HH:MM:SS
- Implemented a toast notification system with auto-remove functionality
- Added functions to get day of the week and month names in German
2025-10-23 17:53:03 +02:00

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/**
* Utility Functions
* Date/Time formatting, rounding, duration formatting
*/
/**
* Format date from YYYY-MM-DD to DD.MM.YYYY
*/
function formatDateDisplay(dateStr) {
const [year, month, day] = dateStr.split('-');
return `${day}.${month}.${year}`;
}
/**
* Format date from DD.MM.YYYY to YYYY-MM-DD
*/
function formatDateISO(dateStr) {
const [day, month, year] = dateStr.split('.');
return `${year}-${month}-${day}`;
}
/**
* Get today's date in YYYY-MM-DD format
*/
function getTodayISO() {
const today = new Date();
const year = today.getFullYear();
const month = String(today.getMonth() + 1).padStart(2, '0');
const day = String(today.getDate()).padStart(2, '0');
return `${year}-${month}-${day}`;
}
/**
* Round time down to nearest 15 minutes
*/
function roundDownTo15Min(date) {
const minutes = date.getMinutes();
const roundedMinutes = Math.floor(minutes / 15) * 15;
date.setMinutes(roundedMinutes);
date.setSeconds(0);
date.setMilliseconds(0);
return date;
}
/**
* Round time up to nearest 15 minutes
*/
function roundUpTo15Min(date) {
const minutes = date.getMinutes();
const roundedMinutes = Math.ceil(minutes / 15) * 15;
date.setMinutes(roundedMinutes);
date.setSeconds(0);
date.setMilliseconds(0);
return date;
}
/**
* Format time as HH:MM
*/
function formatTime(date) {
const hours = String(date.getHours()).padStart(2, '0');
const minutes = String(date.getMinutes()).padStart(2, '0');
return `${hours}:${minutes}`;
}
/**
* Format seconds to HH:MM:SS
*/
function formatDuration(seconds) {
const hrs = Math.floor(seconds / 3600);
const mins = Math.floor((seconds % 3600) / 60);
const secs = seconds % 60;
return `${String(hrs).padStart(2, '0')}:${String(mins).padStart(2, '0')}:${String(secs).padStart(2, '0')}`;
}
/**
* Show toast notification
*/
function showNotification(message, type = 'info') {
const container = document.getElementById('toastContainer');
// Create toast element
const toast = document.createElement('div');
toast.className = `toast toast-${type}`;
// Icon based on type
const icons = {
success: '✓',
error: '✕',
info: ''
};
toast.innerHTML = `
<span class="toast-icon">${icons[type] || ''}</span>
<span>${message}</span>
`;
container.appendChild(toast);
// Auto-remove after 3 seconds
setTimeout(() => {
toast.classList.add('hiding');
setTimeout(() => {
container.removeChild(toast);
}, 300);
}, 3000);
}
/**
* Get day of week abbreviation in German
*/
function getDayOfWeek(date) {
const days = ['So', 'Mo', 'Di', 'Mi', 'Do', 'Fr', 'Sa'];
return days[date.getDay()];
}
/**
* Get month name in German
*/
function getMonthName(month) {
const months = [
'Januar', 'Februar', 'März', 'April', 'Mai', 'Juni',
'Juli', 'August', 'September', 'Oktober', 'November', 'Dezember'
];
return months[month];
}