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(res.headers as unknown as { getSetCookie: () => string[] }).getSetCookie()\n : (res.headers.get(\"set-cookie\") ?? \"\").split(/,(?=[^ ])/);\n const map: Record = {};\n for (const r of setCookies) {\n const p = r.split(\";\")[0].trim(); const eq = p.indexOf(\"=\");\n if (eq > 0) map[p.slice(0,eq).trim()] = p.slice(eq+1).trim();\n }\n const csrf = map[\"csrftoken\"] ?? html.match(/\"csrfToken\"\\s*:\\s*\"([^\"]+)\"/)?.[1] ?? \"\";\n if (!csrf) throw new Error(`csrftoken not found`);\n return { csrf, cookies: Object.entries(map).map(([k,v])=>`${k}=${v}`).join(\"; \") };\n}\n\nasync function fetchPage(page: number, csrf: string, cookies: string): Promise {\n const res = await fetch(API_URL, {\n method: \"POST\",\n headers: {\n \"Content-Type\":\"application/json\",\"Accept\":\"application/json\",\"User-Agent\":UA,\n \"Referer\":BROWSE_URL,\"Origin\":\"https://www.eventbrite.sg\",\n \"X-CSRFToken\":csrf,\"X-Requested-With\":\"XMLHttpRequest\",\"Cookie\":cookies,\n },\n body: JSON.stringify({\n event_search: { q: \"\", price: \"free\", dates: \"current_future\", bbox: SG_BBOX },\n page,\n }),\n });\n if (!res.ok) return [];\n try {\n const data = await res.json() as Record;\n const results = (data.events as Record)?.results;\n return Array.isArray(results) ? results : [];\n } catch { return []; }\n}\n\n// Extract subcategory ID from a raw event object — tries multiple field paths\nfunction getSubcatId(e: Record): string | null {\n // Try common field names\n if (e.subcategory_id) return String(e.subcategory_id);\n if (e.subcategory) {\n const sub = e.subcategory as Record;\n if (sub.id) return String(sub.id);\n }\n if (e.category) {\n const cat = e.category as Record;\n if (cat.subcategory_id) return String(cat.subcategory_id);\n if (cat.subcategory) {\n const sub = cat.subcategory as Record;\n if (sub.id) return String(sub.id);\n }\n }\n // Check tags array\n if (Array.isArray(e.tags)) {\n for (const t of e.tags) {\n const tag = String(typeof t === \"object\" ? (t as Record).tag ?? (t as Record).id ?? \"\" : t);\n if (WANTED_SUBCATS.has(tag)) return tag;\n }\n }\n return null;\n}\n\nfunction matchesFilter(e: Record): boolean {\n const id = getSubcatId(e);\n // If we can extract a subcategory ID, filter by it\n if (id !== null) return WANTED_SUBCATS.has(id);\n // If no category data at all, include the event (don't silently drop everything)\n return true;\n}\n\nfunction mapEvent(e: Record): EventItem | null {\n const nameObj = e.name as Record|undefined;\n const title = typeof e.name===\"string\" ? e.name : (nameObj?.text as string)??\"\";\n if (!title) return null;\n const url = (e.url as string)??\"\"; if (!url.startsWith(\"http\")) return null;\n const start = e.start as Record|undefined;\n const startDate = (start?.local as string)??(start?.utc as string)??\"\";\n const venue = (e.venue??e.primary_venue) as Record|undefined;\n const addr = venue?.address as Record|undefined;\n const loc = (venue?.name as string)??(addr?.localized_address_display as string)??\"Singapore\";\n const descObj = e.description as Record|undefined;\n const summary = (e.summary as string)??(typeof e.description===\"string\"?e.description:descObj?.text as string)??\"\";\n const img = (e.image??e.logo) as Record|undefined;\n const imgOrig = img?.original as Record|undefined;\n const imageUrl = (img?.url as string)??(imgOrig?.url as string)??\"\";\n return {\n title, link: url,\n description:[summary.slice(0,200),`📍 ${loc}`,startDate?`🗓 ${fmtSg(startDate)}`:\"\"].filter(Boolean).join(\" — \"),\n pubDate:startDate, location:loc, imageUrl,\n };\n}\n\nfunction buildRss(events: EventItem[]) {\n const buildDate = new Date().toUTCString();\n const items = events.map(e=>` \n <![CDATA[${e.title}]]>\n ${escapeXml(e.link)}\n ${escapeXml(e.link)}\n \n ${e.pubDate?`${toRfc822(e.pubDate)}`:\"\"}\n ${e.imageUrl?``:\"\"}\n `).join(\"\\n\");\n return `\n\n \n Free Events Singapore 🇸🇬 — Eventbrite\n ${escapeXml(BROWSE_URL)}\n \n Free upcoming events in Singapore via Eventbrite.\n en-SG${buildDate}60\n${items}\n \n`;\n}\n\nexport default async function(req: Request): Promise {\n const params = new URL(req.url).searchParams;\n const inspect = params.get(\"inspect\") === \"1\";\n const debug = params.get(\"debug\") === \"1\";\n\n const { csrf, cookies } = await fetchCsrf();\n const firstPage = await fetchPage(1, csrf, cookies);\n\n // ?inspect=1 — show raw JSON of first event so we can find the category field\n if (inspect && firstPage.length > 0) {\n return new Response(\n JSON.stringify(firstPage[0], null, 2),\n { headers: { \"Content-Type\": \"application/json; charset=UTF-8\" } }\n );\n }\n\n // Fetch remaining pages in parallel\n const rest = await Promise.all(\n Array.from({ length: PAGES - 1 }, (_, i) => fetchPage(i + 2, csrf, cookies))\n );\n const rawAll = [firstPage, ...rest].flat();\n\n // Deduplicate and (attempt to) filter by subcategory\n const seen = new Set();\n const events: EventItem[] = [];\n let filtered = 0;\n\n for (const raw of rawAll) {\n const e = raw as Record;\n const item = mapEvent(e);\n if (!item || seen.has(item.link)) continue;\n seen.add(item.link);\n if (matchesFilter(e)) {\n events.push(item);\n } else {\n filtered++;\n }\n }\n\n if (debug) {\n const lines = [\n `raw events: ${rawAll.length}`,\n `after dedup+filter: ${events.length} (filtered out: ${filtered})`,\n `subcategory field found: ${getSubcatId(rawAll[0] as Record) !== null}`,\n \"\",\n ...events.map((e,i)=>`${i+1}. ${e.title} | ${e.location} | ${e.pubDate}`),\n ];\n return new Response(lines.join(\"\\n\"), { headers: { \"Content-Type\": \"text/plain; charset=UTF-8\" } });\n }\n\n return new Response(buildRss(events.length > 0 ? 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Diff · v18