From c582c7c4d62aec2175bc75cfc0c4062596814048 Mon Sep 17 00:00:00 2001
From: vikingowl <christian@nachtigall.dev>
Date: Mon, 23 Feb 2026 06:12:39 +0100
Subject: [PATCH] feat: parse admission notes into structured price table
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Parse semi-structured notes text (e.g. "Samstag: Erw. 15 €, Kinder 8 €")
into grouped table rows instead of showing raw text below the table.

- Split notes on sentence boundaries (". " + uppercase), handling
  abbreviations like "Erw." correctly
- Extract "Label: Category Price €" patterns into table groups
- Expand common abbreviations (Erw. → Erwachsene, Erm. → Ermäßigt)
- Guard against "Cat: Price, Cat: Price" format (colons in pricesStr)
- Guard against bare prices after colon (letter-start requirement)
- Graceful fallback to flat table + raw notes when parsing fails
---
 web/src/routes/markt/[slug]/+page.svelte | 135 ++++++++++++++++++++---
 1 file changed, 117 insertions(+), 18 deletions(-)

diff --git a/web/src/routes/markt/[slug]/+page.svelte b/web/src/routes/markt/[slug]/+page.svelte
index 8c30f48..2383a0a 100644
--- a/web/src/routes/markt/[slug]/+page.svelte
+++ b/web/src/routes/markt/[slug]/+page.svelte
@@ -31,6 +31,80 @@
 			: null
 	);
 
+	interface ParsedPriceEntry {
+		category: string;
+		price: string;
+	}
+
+	interface ParsedPriceGroup {
+		label: string;
+		entries: ParsedPriceEntry[];
+	}
+
+	const categoryLabels: Record<string, string> = {
+		Erw: 'Erwachsene',
+		'Erw.': 'Erwachsene',
+		Erm: 'Ermäßigt',
+		'Erm.': 'Ermäßigt'
+	};
+
+	function parseAdmissionNotes(notes: string): {
+		groups: ParsedPriceGroup[];
+		remaining: string;
+	} {
+		const groups: ParsedPriceGroup[] = [];
+		const remainingParts: string[] = [];
+
+		// Split on ". " followed by uppercase — avoids breaking on "Erw." abbreviation
+		const segments = notes.split(/\.\s+(?=[A-ZÄÖÜ])/).filter((s) => s.trim());
+
+		for (const raw of segments) {
+			const segment = raw.replace(/\.+$/, '').trim();
+			const colonIdx = segment.indexOf(':');
+			if (colonIdx === -1) {
+				remainingParts.push(segment);
+				continue;
+			}
+
+			const label = segment.substring(0, colonIdx).trim();
+			const pricesStr = segment.substring(colonIdx + 1).trim();
+
+			// If pricesStr contains colons, it's "Cat: Price, Cat: Price" format — skip parsing
+			if (pricesStr.includes(':')) {
+				remainingParts.push(segment);
+				continue;
+			}
+
+			const entries: ParsedPriceEntry[] = [];
+			// Category must start with a letter (prevents matching bare prices like "13,00 €")
+			const pricePattern = /(?:^|,\s*)([A-Za-zÄÖÜäöüß].*?)\s+(\d+(?:,\d+)?)\s*€/g;
+			let m;
+
+			while ((m = pricePattern.exec(pricesStr)) !== null) {
+				const cat = m[1].trim();
+				entries.push({
+					category: categoryLabels[cat] ?? cat,
+					price: m[2] + ' €'
+				});
+			}
+
+			if (entries.length > 0) {
+				groups.push({ label, entries });
+			} else {
+				remainingParts.push(segment);
+			}
+		}
+
+		return {
+			groups,
+			remaining: remainingParts.length > 0 ? remainingParts.join('. ') + '.' : ''
+		};
+	}
+
+	const parsedNotes = $derived(
+		admission?.notes ? parseAdmissionNotes(admission.notes) : { groups: [], remaining: '' }
+	);
+
 	const jsonLdBreadcrumbHtml = $derived(
 		'<script type="application/ld+json">' +
 			JSON.stringify({
@@ -227,27 +301,50 @@
 				<h2 class="text-lg font-semibold text-stone-900 dark:text-stone-100">Eintrittspreise</h2>
 				<table class="mt-3 w-full text-sm">
 					<tbody>
-						<tr class="border-b border-stone-100 dark:border-stone-700">
-							<td class="py-2 font-medium text-stone-700 dark:text-stone-200">Erwachsene</td>
-							<td class="py-2 text-right text-stone-600 dark:text-stone-300"
-								>{centsToEuro(admission.adult_cents)}</td
-							>
-						</tr>
-						{#if admission.reduced_cents > 0}
+						{#if parsedNotes.groups.length > 0}
+							{#each parsedNotes.groups as group, i}
+								<tr class="border-b border-stone-200 dark:border-stone-600">
+									<td
+										colspan="2"
+										class="{i > 0
+											? 'pt-3'
+											: 'pt-1'} pb-1 font-semibold text-stone-800 dark:text-stone-200"
+										>{group.label}</td
+									>
+								</tr>
+								{#each group.entries as entry}
+									<tr class="border-b border-stone-100 dark:border-stone-700">
+										<td class="py-2 pl-3 font-medium text-stone-700 dark:text-stone-200"
+											>{entry.category}</td
+										>
+										<td class="py-2 text-right text-stone-600 dark:text-stone-300">{entry.price}</td
+										>
+									</tr>
+								{/each}
+							{/each}
+						{:else}
 							<tr class="border-b border-stone-100 dark:border-stone-700">
-								<td class="py-2 font-medium text-stone-700 dark:text-stone-200">Ermäßigt</td>
+								<td class="py-2 font-medium text-stone-700 dark:text-stone-200">Erwachsene</td>
 								<td class="py-2 text-right text-stone-600 dark:text-stone-300"
-									>{centsToEuro(admission.reduced_cents)}</td
-								>
-							</tr>
-						{/if}
-						{#if admission.child_cents > 0}
-							<tr class="border-b border-stone-100 dark:border-stone-700">
-								<td class="py-2 font-medium text-stone-700 dark:text-stone-200">Kinder</td>
-								<td class="py-2 text-right text-stone-600 dark:text-stone-300"
-									>{centsToEuro(admission.child_cents)}</td
+									>{centsToEuro(admission.adult_cents)}</td
 								>
 							</tr>
+							{#if admission.reduced_cents > 0}
+								<tr class="border-b border-stone-100 dark:border-stone-700">
+									<td class="py-2 font-medium text-stone-700 dark:text-stone-200">Ermäßigt</td>
+									<td class="py-2 text-right text-stone-600 dark:text-stone-300"
+										>{centsToEuro(admission.reduced_cents)}</td
+									>
+								</tr>
+							{/if}
+							{#if admission.child_cents > 0}
+								<tr class="border-b border-stone-100 dark:border-stone-700">
+									<td class="py-2 font-medium text-stone-700 dark:text-stone-200">Kinder</td>
+									<td class="py-2 text-right text-stone-600 dark:text-stone-300"
+										>{centsToEuro(admission.child_cents)}</td
+									>
+								</tr>
+							{/if}
 						{/if}
 						{#if admission.free_under_age > 0}
 							<tr class="border-b border-stone-100 dark:border-stone-700">
@@ -259,7 +356,9 @@
 						{/if}
 					</tbody>
 				</table>
-				{#if admission.notes}
+				{#if parsedNotes.groups.length > 0 && parsedNotes.remaining}
+					<p class="mt-2 text-sm text-stone-500 dark:text-stone-400">{parsedNotes.remaining}</p>
+				{:else if parsedNotes.groups.length === 0 && admission.notes}
 					<p class="mt-2 text-sm text-stone-500 dark:text-stone-400">{admission.notes}</p>
 				{/if}
 			</div>