TER Départs

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\"\")\n .replace(/&/g, \"&\").replace(//g, \">\").replace(/\"/g, \""\");\n }\n\n function page(content) {\n return new Response(\n `\n\n\n\n\nTER Départs\n\n\n\n${content}\n\n`,\n { headers: { \"Content-Type\": \"text/html; charset=utf-8\" } },\n );\n }\n\n // ── API SNCF ──────────────────────────────────────────────────────────────\n\n if (!globalThis.__TER_CACHE__) globalThis.__TER_CACHE__ = new Map();\n const cache = globalThis.__TER_CACHE__;\n\n async function sncfFetch(apiUrl) {\n if (!SNCF_KEY) throw new Error(\"SNCF_API_TOKEN non configuré\");\n const r = await fetch(apiUrl, {\n headers: {\n Authorization: \"Basic \" + btoa(SNCF_KEY + \":\"),\n Accept: \"application/json\",\n },\n });\n if (!r.ok) throw new Error(`API SNCF HTTP ${r.status}`);\n return r.json();\n }\n\n async function cachedFetch(key, apiUrl) {\n const now = Date.now();\n const hit = cache.get(key);\n if (hit && now - hit.time < CACHE_TTL) return hit.data;\n const data = await sncfFetch(apiUrl);\n cache.set(key, { time: now, data });\n return data;\n }\n\n // ── Dates & timezone ──────────────────────────────────────────────────────\n\n // Renvoie l'offset UTC courant de Paris : \"+02:00\" ou \"+01:00\"\n function parisTZOffset() {\n const now = new Date();\n const p = Object.fromEntries(\n new Intl.DateTimeFormat(\"en-US\", {\n timeZone: \"Europe/Paris\",\n year: \"numeric\",\n month: \"2-digit\",\n day: \"2-digit\",\n hour: \"2-digit\",\n minute: \"2-digit\",\n second: \"2-digit\",\n hour12: false,\n }).formatToParts(now)\n .filter((x) => x.type !== \"literal\")\n .map((x) => [x.type, x.value]),\n );\n const parisMs = Date.UTC(\n +p.year,\n +p.month - 1,\n +p.day,\n +p.hour % 24,\n +p.minute,\n +p.second,\n );\n const h = Math.round((parisMs - now.getTime()) / 3_600_000);\n return (h >= 0 ? \"+\" : \"-\") + String(Math.abs(h)).padStart(2, \"0\") + \":00\";\n }\n\n const TZ = parisTZOffset(); // calculé une seule fois par requête\n\n // \"YYYYMMDDTHHMMSS\" (heure locale Paris) → ms UTC\n function parseNavDate(dt) {\n if (!dt) return NaN;\n if (/^\\d{8}T\\d{6}$/.test(dt)) {\n return new Date(\n `${dt.slice(0, 4)}-${dt.slice(4, 6)}-${dt.slice(6, 8)}` +\n `T${dt.slice(9, 11)}:${dt.slice(11, 13)}:${dt.slice(13, 15)}${TZ}`,\n ).getTime();\n }\n return new Date(dt).getTime();\n }\n\n // \"YYYYMMDDTHHMMSS\" → \"HH:MM\"\n function navTime(dt) {\n if (/^\\d{8}T\\d{6}$/.test(dt || \"\")) {\n return `${dt.slice(9, 11)}:${dt.slice(11, 13)}`;\n }\n return (dt || \"\").slice(11, 16);\n }\n\n // \"YYYYMMDDTHHMMSS\" → \"YYYY-MM-DD\"\n function navDate(dt) {\n if (/^\\d{8}T/.test(dt || \"\")) {\n return `${dt.slice(0, 4)}-${dt.slice(4, 6)}-${dt.slice(6, 8)}`;\n }\n return (dt || \"\").slice(0, 10);\n }\n\n // Aujourd'hui en heure Paris \"YYYY-MM-DD\"\n const todayParis = (() => {\n const p = Object.fromEntries(\n new Intl.DateTimeFormat(\"en-US\", {\n timeZone: \"Europe/Paris\",\n year: \"numeric\",\n month: \"2-digit\",\n day: \"2-digit\",\n }).formatToParts(new Date())\n .filter((x) => x.type !== \"literal\")\n .map((x) => [x.type, x.value]),\n );\n return `${p.year}-${p.month}-${p.day}`;\n })();\n\n function getDayLabel(dt) {\n const d = navDate(dt);\n if (!d || d === todayParis) return \"\";\n const diff = Math.round(\n (new Date(d + \"T00:00:00Z\") - new Date(todayParis + \"T00:00:00Z\")) /\n 86_400_000,\n );\n return diff > 0 ? `J+${diff} - ` : \"\";\n }\n\n function formatRemaining(min) {\n if (min <= 0) return \"maintenant\";\n if (min < 60) return `${min} min`;\n return `${Math.floor(min / 60)}h ${String(min % 60).padStart(2, \"0\")}min`;\n }\n\n // Valeur stop_time → \"HH:MM\" (accepte entier en secondes ou chaîne HHMMSS)\n function stopTimeToHHMM(v) {\n if (v == null) return \"\";\n if (typeof v === \"number\") {\n const t = v % 86400;\n return `${String(Math.floor(t / 3600)).padStart(2, \"0\")}:${\n String(Math.floor((t % 3600) / 60)).padStart(2, \"0\")\n }`;\n }\n const s = String(v);\n if (/^\\d{6}$/.test(s)) return `${s.slice(0, 2)}:${s.slice(2, 4)}`;\n return s.slice(0, 5);\n }\n\n // Extraction voie depuis stop_point Navitia\n function extractTrack(sp) {\n if (!sp) return \"\";\n // Nom : \"Station – Voie A\" ou \"Station - Quai 3\"\n const m = (sp.name || \"\").match(\n /[–\\-]\\s*(?:voie|quai|v\\.?)\\s*([A-Z0-9]+)\\s*$/i,\n );\n if (m) return m[1].toUpperCase();\n // ID : dernier segment après \":\", ex : \"stop_point:SNCF:87751008:Train:A\"\n const last = (sp.id || \"\").split(\":\").at(-1) || \"\";\n if (/^[A-Z][0-9]?$|^[0-9]{1,2}$/.test(last)) return last;\n return \"\";\n }\n\n // ── Trajet détaillé ───────────────────────────────────────────────────────\n\n if (trainNum && trainDate) {\n // trainDate format \"YYYYMMDDTHHMMSS\" → on n'en veut que la date\n const dateStr = /^\\d{8}T/.test(trainDate)\n ? trainDate.slice(0, 8)\n : trainDate.slice(0, 4) + trainDate.slice(5, 7) + trainDate.slice(8, 10);\n\n try {\n const data = await cachedFetch(\n `vj:${trainNum}:${dateStr}`,\n `https://api.sncf.com/v1/coverage/sncf/vehicle_journeys` +\n `?headsign=${encodeURIComponent(trainNum)}` +\n `&since=${dateStr}T000000&until=${dateStr}T235959&count=3`,\n );\n\n const journeys = data?.vehicle_journeys || [];\n if (!journeys.length) {\n return page(`

Trajet introuvable (train N°${esc(trainNum)}).

Retour

`);\n }\n\n const stops = journeys[0].stop_times || [];\n let html = `

Train N°${esc(trainNum)}

`;\n\n for (const st of stops) {\n const nom = st.stop_point?.name || \"?\";\n const dep = stopTimeToHHMM(st.departure_time);\n const arr = stopTimeToHHMM(st.arrival_time);\n const heures = (arr && dep && arr !== dep)\n ? `Arr. ${arr} · Dép. ${dep}`\n : dep\n ? `Dép. ${dep}`\n : arr\n ? `Arr. ${arr}`\n : \"\";\n html += `

${\n esc(nom)\n }

${esc(heures)}

`;\n }\n\n html +=\n `

Retour aux départs

`;\n return page(html);\n } catch (e) {\n return page(`

Erreur trajet : ${esc(e.message)}

Retour

`);\n }\n }\n\n // ── Sélection gare ────────────────────────────────────────────────────────\n\n if (!gareUic) {\n let html = ``;\n return page(html);\n }\n\n const gare = GARES.find((g) => g.uic === gareUic);\n if (!gare) {\n return page(`

Gare introuvable.

Nouvelle recherche

`);\n }\n\n // ── Départs ───────────────────────────────────────────────────────────────\n\n let circulations;\n try {\n const stopAreaId = `stop_area:SNCF:${gare.uic}`;\n const data = await cachedFetch(\n `dep:${gare.uic}`,\n `https://api.sncf.com/v1/coverage/sncf/stop_areas/${\n encodeURIComponent(stopAreaId)\n }/departures` +\n `?count=30&data_freshness=realtime`,\n );\n\n circulations = (data?.departures || []).map((d, i) => {\n if (i === 0) {\n console.log(\"STOP_POINT:\", JSON.stringify(d?.stop_point, null, 2));\n }\n const info = d?.display_informations || {};\n const sdt = d?.stop_date_time || {};\n\n // realtimeDate = heure réelle (retard inclus), scheduledDate = heure théorique\n const realtimeDate = sdt.departure_date_time ||\n sdt.base_departure_date_time || \"\";\n const scheduledDate = sdt.base_departure_date_time || realtimeDate;\n\n // Destination sans le \"(Ville)\" de désambiguïsation Navitia\n const dest = (info.direction || info.name || \"Destination inconnue\")\n .replace(/\\s*\$.*?\$\\s*$/, \"\").trim();\n\n const rtMs = parseNavDate(realtimeDate);\n const baseMs = parseNavDate(scheduledDate);\n const delayMin = (!isNaN(rtMs) && !isNaN(baseMs))\n ? Math.max(0, Math.round((rtMs - baseMs) / 60_000))\n : 0;\n\n return {\n scheduledDate,\n realtimeDate,\n dest,\n trainNum: String(info.headsign || info.code || \"\"),\n track: extractTrack(d?.stop_point),\n delayMin,\n };\n });\n } catch (e) {\n return page(`

Erreur chargement des départs.

${esc(e.message)}

Réessayer

Nouvelle recherche

`);\n }\n\n if (!circulations.length) {\n return page(`

Aucun départ trouvé pour ${esc(gare.name)}.

Nouvelle recherche

`);\n }\n\n // ── Affichage ─────────────────────────────────────────────────────────────\n\n const limit = showAll\n ? circulations.length\n : Math.min(10, circulations.length);\n let html = `

${esc(gare.name)}

`;\n\n for (let i = 0; i < limit; i++) {\n const c = circulations[i];\n\n const depTime = navTime(c.scheduledDate);\n const dayLabel = getDayLabel(c.scheduledDate);\n\n // Décompte basé sur l'heure réelle (retard inclus)\n const rtMs = parseNavDate(c.realtimeDate);\n const restMin = !isNaN(rtMs) ? Math.round((rtMs - Date.now()) / 60_000) : 0;\n const restant = formatRemaining(restMin);\n\n const voieTxt = c.track\n ? `

Voie ${esc(c.track)}

`\n : \"\";\n const retardTxt = c.delayMin\n ? `

(ret. ${c.delayMin} min)

`\n : \"\";\n const trajetLink = c.trainNum\n ? `Trajet`\n : \"\";\n\n html += `

${esc(dayLabel)}${\n esc(depTime)\n }(${esc(restant)})

${esc(c.dest)}

\n ${voieTxt}${trajetLink}${retardTxt}\n

`;\n }\n\n if (!showAll && circulations.length > 10) {\n html +=\n `

`;\n }\n html += `

Nouvelle recherche

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