${cdata(event.title)}

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{ hour: \"2-digit\", minute: \"2-digit\" } : {}),\n }).format(date);\n}\n\nfunction formatTime(date: Date): string {\n return new Intl.DateTimeFormat(\"de-CH\", {\n timeZone: \"Europe/Zurich\",\n hour: \"2-digit\",\n minute: \"2-digit\",\n }).format(date);\n}\n\nfunction sameDay(a: Date, b: Date): boolean {\n const fmt = new Intl.DateTimeFormat(\"de-CH\", { timeZone: \"Europe/Zurich\", dateStyle: \"short\" });\n return fmt.format(a) === fmt.format(b);\n}\n\nasync function fetchHtml(url: string, timeoutMs = 12000): Promise {\n const controller = new AbortController();\n const timeout = setTimeout(() => controller.abort(), timeoutMs);\n try {\n const res = await fetch(url, {\n headers: {\n \"User-Agent\": USER_AGENT,\n Accept: \"text/html,application/xhtml+xml\",\n \"Accept-Language\": \"de-CH,de;q=0.9\",\n },\n signal: controller.signal,\n });\n if (!res.ok) return null;\n return await res.text();\n } catch {\n return null;\n } finally {\n clearTimeout(timeout);\n }\n}\n\nasync function runWithConcurrency(\n items: T[],\n limit: number,\n worker: (item: T) => Promise,\n): Promise {\n const results: R[] = new Array(items.length);\n let index = 0;\n\n async function next(): Promise {\n const current = index++;\n if (current >= items.length) return;\n results[current] = await worker(items[current]);\n return next();\n }\n\n await Promise.all(Array.from({ length: Math.min(limit, items.length) }, () => next()));\n return results;\n}\n\n/** Sammelt die Veranstaltungs-Links der Suchseite. */\nasync function discoverEvents(): Promise {\n const res = await fetch(LISTING_URL, {\n headers: {\n \"User-Agent\": USER_AGENT,\n Accept: \"text/html,application/xhtml+xml\",\n \"Accept-Language\": \"de-CH,de;q=0.9\",\n \"Cache-Control\": \"no-cache\",\n },\n });\n if (!res.ok) throw new Error(`Suchseite nicht erreichbar (${res.status})`);\n\n const $ = cheerio.load(await res.text());\n const seen = new Set();\n\n $('a[href*=\"/de/p/\"]').each((_, el) => {\n const href = $(el).attr(\"href\");\n if (!href) return;\n try {\n const url = new URL(href, SOURCE_URL);\n if (url.hostname.replace(/^www\\./, \"\") !== \"eventfrog.ch\") return;\n if (!EVENT_PATH_RE.test(url.pathname)) return;\n seen.add(`${SOURCE_URL}${url.pathname}`);\n } catch {\n // ungültige URL ignorieren\n }\n });\n\n return [...seen];\n}\n\n/** Beschreibungstext von Eventfrog säubern und in Absätze umbrechen. */\nfunction formatDescription(raw: string): string {\n const clean = raw.replace(/\\r/g, \"\").trim();\n if (!clean) return \"\";\n return clean\n .split(/\\n{1,}/)\n .map((line) => line.replace(/\\s+/g, \" \").trim())\n .filter(Boolean)\n .map((line) => `

${escapeHtml(line)}

`)\n .join(\"\\n\");\n}\n\n/**\n * Baut die Veranstaltungsübersicht: Bild, Termin, Ort, Tickets, Veranstalter\n * und Beschreibung. Die Daten stammen aus dem schema.org-Event der Seite.\n */\nfunction buildContent(event: EventItem, place: Record, offers: unknown): string {\n const parts: string[] = [];\n\n if (event.image) {\n parts.push(`

`);\n }\n\n if (event.start) {\n let when = formatDateTime(event.start);\n if (event.end) {\n when += sameDay(event.start, event.end)\n ? ` bis ${formatTime(event.end)}`\n : ` bis ${formatDateTime(event.end)}`;\n }\n parts.push(`

Wann: ${escapeHtml(when)}

`);\n }\n\n const address = (place?.address ?? {}) as Record;\n const whereParts = [\n place?.name,\n address.streetAddress,\n [address.postalCode, address.addressLocality].filter(Boolean).join(\" \"),\n ].map((v) => String(v ?? \"\").trim()).filter(Boolean);\n if (whereParts.length > 0) {\n parts.push(`

Wo: ${escapeHtml(whereParts.join(\", \"))}

`);\n }\n\n const offerList = Array.isArray(offers) ? offers : offers ? [offers] : [];\n const prices = offerList\n .map((o) => {\n const offer = o as Record;\n const price = Number(offer.price ?? NaN);\n if (isNaN(price)) return \"\";\n const currency = String(offer.priceCurrency ?? \"CHF\");\n return price === 0 ? \"Eintritt frei\" : `${currency} ${price.toFixed(2)}`;\n })\n .filter(Boolean);\n if (prices.length > 0) {\n parts.push(`

Tickets: ${escapeHtml([...new Set(prices)].join(\", \"))}

`);\n }\n\n if (event.organizer) {\n parts.push(`

Veranstalter: ${escapeHtml(event.organizer)}

`);\n }\n\n if (event.description) parts.push(formatDescription(event.description));\n\n parts.push(`

Auf Eventfrog ansehen

`);\n\n const html = parts.join(\"\\n\");\n return html.length > MAX_CONTENT_CHARS ? html.slice(0, MAX_CONTENT_CHARS) : html;\n}\n\nasync function enrichEvent(link: string): Promise {\n const html = await fetchHtml(link);\n if (!html) return null;\n\n const $ = cheerio.load(html);\n const event: EventItem = { title: \"\", link, categories: [] };\n let place: Record = {};\n let offers: unknown = null;\n\n $('script[type=\"application/ld+json\"]').each((_, el) => {\n try {\n const data = JSON.parse($(el).contents().text());\n const nodes = Array.isArray(data) ? data : data[\"@graph\"] ? data[\"@graph\"] : [data];\n for (const g of nodes) {\n const type = String(g?.[\"@type\"] ?? \"\");\n if (!type.includes(\"Event\")) continue;\n\n if (g.name) event.title = String(g.name).replace(/\\s+/g, \" \").trim();\n if (g.description) event.description = String(g.description);\n\n const image = Array.isArray(g.image) ? g.image[0] : g.image;\n const imageUrl = typeof image === \"string\" ? image : (image as { url?: string })?.url;\n if (imageUrl) event.image = absolute(String(imageUrl), link);\n\n if (g.startDate && !isNaN(new Date(g.startDate).getTime())) {\n event.start = new Date(g.startDate);\n }\n if (g.endDate && !isNaN(new Date(g.endDate).getTime())) {\n event.end = new Date(g.endDate);\n }\n\n if (g.location) place = (Array.isArray(g.location) ? g.location[0] : g.location) ?? {};\n if (g.offers) offers = g.offers;\n\n const organizer = Array.isArray(g.organizer) ? g.organizer[0] : g.organizer;\n const organizerName = typeof organizer === \"string\" ? organizer : organizer?.name;\n if (organizerName) event.organizer = String(organizerName).trim();\n\n if (g.keywords) {\n const keys = Array.isArray(g.keywords) ? g.keywords : String(g.keywords).split(\",\");\n event.categories.push(...keys.map((k: unknown) => String(k).trim()).filter(Boolean));\n }\n }\n } catch {\n // ungültiges JSON-LD ignorieren\n }\n });\n\n if (!event.title) {\n event.title = ($('meta[property=\"og:title\"]').attr(\"content\") ?? \"\")\n .replace(/\\s*\\|\\s*[^|]*$/, \"\").trim();\n }\n if (!event.image) {\n event.image = absolute($('meta[property=\"og:image\"]').attr(\"content\") ?? \"\", link);\n }\n if (!event.title || !event.start) return null;\n\n // Ortsangabe als Kategorie, damit sich in Unread nach Orten filtern lässt\n const locality = String((place?.address as Record)?.addressLocality ?? \"\").trim();\n if (locality) event.categories.unshift(locality);\n\n event.categories = [...new Set(event.categories)].filter(Boolean).slice(0, 8);\n event.content = buildContent(event, place, offers);\n return event;\n}\n\nexport default async function (req: Request): Promise {\n try {\n const candidates = await discoverEvents();\n const now = new Date();\n\n const events = (await runWithConcurrency(candidates, CONCURRENCY, enrichEvent))\n .filter((e): e is EventItem => e !== null)\n // Vergangene Termine überspringen; der Endtermin zählt, damit\n // mehrtägige Veranstaltungen nicht vorzeitig verschwinden\n .filter((e) => (e.end ?? e.start ?? now).getTime() >= now.getTime() - 6 * 3600 * 1000)\n // Nächster Termin zuoberst\n .sort((a, b) => (a.start?.getTime() ?? 0) - (b.start?.getTime() ?? 0))\n .slice(0, MAX_ITEMS);\n\n const itemsXml = events.map((event) => {\n const date = event.start ?? now;\n const teaser = (event.description ?? \"\").replace(/\\s+/g, \" \").trim().slice(0, 300);\n const summary = `

${\n event.image ? `

` : \"\"\n }

${escapeHtml(formatDateTime(date))}${teaser ? ` – ${escapeHtml(teaser)}` : \"\"}

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