initialer commit, Grundcode

frontend/js/utils.js

@@ -0,0 +1,53 @@
+export function isToday(d) {
+  const now = new Date();
+  return d.getFullYear() === now.getFullYear() &&
+         d.getMonth()    === now.getMonth()    &&
+         d.getDate()     === now.getDate();
+}
+
+export function isSameDay(a, b) {
+  return a.getFullYear() === b.getFullYear() &&
+         a.getMonth()    === b.getMonth()    &&
+         a.getDate()     === b.getDate();
+}
+
+export function isPast(ev) {
+  const end = new Date(ev.end);
+  return end < new Date();
+}
+
+export function formatDate(d, opts = {}) {
+  return d.toLocaleDateString('de', opts);
+}
+
+export function dateKey(d) {
+  return `${d.getFullYear()}-${String(d.getMonth()+1).padStart(2,'0')}-${String(d.getDate()).padStart(2,'0')}`;
+}
+
+export function toLocalDatetimeInput(d) {
+  const Y = d.getFullYear();
+  const M = String(d.getMonth()+1).padStart(2,'0');
+  const D = String(d.getDate()).padStart(2,'0');
+  const h = String(d.getHours()).padStart(2,'0');
+  const m = String(d.getMinutes()).padStart(2,'0');
+  return `${Y}-${M}-${D}T${h}:${m}`;
+}
+
+export function toDateInput(d) {
+  return `${d.getFullYear()}-${String(d.getMonth()+1).padStart(2,'0')}-${String(d.getDate()).padStart(2,'0')}`;
+}
+
+export function applyTheme(settings) {
+  const root = document.documentElement;
+  root.style.setProperty('--primary',      settings.primary_color || '#4285f4');
+  root.style.setProperty('--primary-dim',  hexToRgba(settings.primary_color || '#4285f4', 0.15));
+  root.style.setProperty('--accent',       settings.accent_color  || '#ea4335');
+  root.style.setProperty('--today-color',  settings.today_color   || '#4285f4');
+}
+
+function hexToRgba(hex, alpha) {
+  const r = parseInt(hex.slice(1,3), 16);
+  const g = parseInt(hex.slice(3,5), 16);
+  const b = parseInt(hex.slice(5,7), 16);
+  return `rgba(${r},${g},${b},${alpha})`;
+}