Termine: Wochen- und Monatsansicht via @event-calendar/core, umschaltbar zur Listenansicht

app/src/routes/(app)/termine/+page.svelte

@@ -2,6 +2,8 @@
 	import { pb } from '$lib/pb';
 	import { onMount } from 'svelte';
 	import { RRule } from 'rrule';
+	import { Calendar, TimeGrid, DayGrid } from '@event-calendar/core';
+	import '@event-calendar/core/index.css';
 	import type { Termin, Gruppe, Verfuegbarkeit, Veranstaltungsort, OrtAusfall } from '$lib/types';
 
 	const isAdmin = () => !pb.authStore.record?.rolle || pb.authStore.record?.rolle === 'admin';
@@ -14,6 +16,11 @@
 	let ausfaelle   = $state<OrtAusfall[]>([]);
 	let loading     = $state(true);
 
+	// Ansicht
+	type Ansicht = 'liste' | 'woche' | 'monat';
+	let ansicht = $state<Ansicht>('liste');
+	const calPlugins = [TimeGrid, DayGrid];
+
 	// Formular
 	let showForm           = $state(false);
 	let editId             = $state<string | null>(null);
@@ -232,6 +239,45 @@
 	function istMeinTermin(t: Termin): boolean {
 		return t.durchfuehrender_id === userId();
 	}
+
+	function verfuegbarkeitFarbe(t: Termin): string {
+		switch (t.verfuegbarkeit) {
+			case 'bestaetigt':         return '#16a34a';
+			case 'abgesagt':           return '#dc2626';
+			case 'vertretung_gesucht': return '#7c3aed';
+			default:                   return '#1e40af';
+		}
+	}
+
+	const calEvents = $derived(termine.map(t => ({
+		id:              t.id,
+		title:           t.titel,
+		start:           t.beginn,
+		end:             t.ende ?? new Date(new Date(t.beginn).getTime() + 60 * 60 * 1000).toISOString(),
+		backgroundColor: verfuegbarkeitFarbe(t),
+		extendedProps:   { termin: t },
+	})));
+
+	const calOptions = $derived({
+		view:       ansicht === 'monat' ? 'dayGridMonth' : 'timeGridWeek',
+		locale:     'de',
+		firstDay:   1,
+		height:     ansicht === 'monat' ? 'auto' : '72dvh',
+		events:     calEvents,
+		slotMinTime: '07:00:00',
+		slotMaxTime: '23:00:00',
+		allDaySlot:  false,
+		headerToolbar: {
+			start:  'prev,next today',
+			center: 'title',
+			end:    '',
+		},
+		buttonText: { today: 'Heute' },
+		eventClick: (info: any) => {
+			const t: Termin = info.event.extendedProps.termin;
+			if (isAdmin()) bearbeiten(t);
+		},
+	});
 </script>
 
 <svelte:head><title>Termine — vereins.haus</title></svelte:head>
@@ -241,6 +287,13 @@
 	<div class="top-rechts">
 		{#if isAdmin()}
 			<a href="/orte" class="btn-orte">Orte</a>
+		{/if}
+		<div class="ansicht-switcher">
+			<button class:aktiv={ansicht === 'liste'} onclick={() => ansicht = 'liste'} title="Listenansicht">☰</button>
+			<button class:aktiv={ansicht === 'woche'} onclick={() => ansicht = 'woche'} title="Wochenansicht">W</button>
+			<button class:aktiv={ansicht === 'monat'} onclick={() => ansicht = 'monat'} title="Monatsansicht">M</button>
+		</div>
+		{#if isAdmin()}
 			<button class="btn-primary" onclick={neuerTermin}>+ Termin</button>
 		{/if}
 	</div>
@@ -254,6 +307,10 @@
 
 {#if loading}
 	<p class="hint">Laden…</p>
+{:else if ansicht !== 'liste'}
+	<div class="kalender-wrap">
+		<Calendar plugins={calPlugins} options={calOptions} />
+	</div>
 {:else if termine.length === 0}
 	<p class="hint">Noch keine Termine geplant.</p>
 {:else}
@@ -497,13 +554,37 @@
 
 <style>
 	.top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
-	.top-rechts { display: flex; align-items: center; gap: 0.5rem; }
+	.top-rechts { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
 	h1 { font-size: 1.4rem; font-weight: 700; color: #1e293b; }
 	.btn-orte {
 		padding: 0.5rem 0.85rem; background: none;
 		border: 1.5px solid #e2e8f0; border-radius: 8px;
 		font-size: 0.85rem; color: #475569; text-decoration: none;
 	}
+
+	.ansicht-switcher {
+		display: flex; border: 1.5px solid #e2e8f0; border-radius: 8px; overflow: hidden;
+	}
+	.ansicht-switcher button {
+		padding: 0.4rem 0.75rem; background: none; border: none;
+		font-size: 0.82rem; font-weight: 600; color: #64748b; cursor: pointer;
+		transition: background 0.15s, color 0.15s;
+	}
+	.ansicht-switcher button + button { border-left: 1px solid #e2e8f0; }
+	.ansicht-switcher button.aktiv { background: #1e40af; color: #fff; }
+
+	.kalender-wrap {
+		margin-bottom: 1rem;
+		--ec-today-bg-color: #eff6ff;
+		--ec-event-bg-color: #1e40af;
+		--ec-border-color: #e2e8f0;
+		--ec-text-color: #1e293b;
+		--ec-button-bg-color: #fff;
+		--ec-button-border-color: #e2e8f0;
+		--ec-button-text-color: #475569;
+		--ec-active-bg-color: #1e40af;
+		--ec-active-text-color: #fff;
+	}
 	.ausfall-warn { font-size: 0.75rem; color: #dc2626; font-weight: 600; }
 	.ort-link { font-size: 0.75rem; color: #1e40af; margin-left: 0.5rem; }
 	.hint { color: #94a3b8; font-size: 0.95rem; text-align: center; margin-top: 3rem; }