/**
 * Offline stub situations, shaped like mobile/globe/API.md (band, archetype,
 * telemetry, headline, media, series [{t,v}]). Everything here is labelled
 * simulated; Eye cards point at the dev server's real public-camera frames
 * (`/api/cctv/frame/:id`) and fall back to imagery when that is unreachable.
 */

import { esriThumb } from './dom.js';

export const SIM = 'Simulated · offline stub engine';

/** Public traffic cameras the dev server proxies (ids from /api/cctv/sources). */
export const STUB_CAMS = [
  {
    id: '354',
    title: '5th St / Congress Ave',
    city: 'Austin',
    provider: 'Austin Transportation & Public Works',
    lat: 30.267119,
    lon: -97.743172,
    headingDeg: 67.5,
  },
  {
    id: 'tfl-00001.06502',
    title: 'Trafalgar Square',
    city: 'London',
    provider: 'Transport for London',
    lat: 51.5074,
    lon: -0.12765,
    headingDeg: 135,
  },
  {
    id: 'wsdot-9520',
    title: 'I-5 at 5th Ave / Columbia',
    city: 'Seattle',
    provider: 'WSDOT',
    lat: 47.605166,
    lon: -122.330316,
    headingDeg: 202.5,
  },
  {
    id: 'ca-d4-tv301',
    title: 'US-101 at Octavia St',
    city: 'San Francisco',
    provider: 'Caltrans',
    lat: 37.77146,
    lon: -122.42323,
    headingDeg: 180,
  },
  {
    id: 'no-vegvesen-3000051_1',
    title: 'F862 Sentrumstangenten',
    city: 'Tromsø',
    provider: 'Statens vegvesen',
    lat: 69.64469,
    lon: 18.947695,
    headingDeg: 270,
  },
  {
    id: 'ca-d11-x1248',
    title: 'I-5 at First Avenue',
    city: 'San Diego',
    provider: 'Caltrans',
    lat: 32.72285,
    lon: -117.16356,
    headingDeg: 180,
  },
  {
    id: 'fi-c1455101',
    title: 'vt4 Rovaniemi Revontuli',
    city: 'Rovaniemi',
    provider: 'Fintraffic',
    lat: 66.503858,
    lon: 25.725196,
    headingDeg: 202.5,
  },
];

export const camFrameUrl = (id) =>
  `/api/cctv/frame/${encodeURIComponent(id)}?ts=${Math.floor(Date.now() / 10000)}`;

function series(values, stepMin, now) {
  return values.map((v, i) => ({
    t: now - (values.length - 1 - i) * stepMin * 60e3,
    v,
  }));
}

export function buildStubSituations(now) {
  const min = 60e3;
  const S = (o) => ({
    live: true,
    source: SIM,
    section: 'now',
    severity: 0,
    updatedAt: now - (o.age ?? 2) * min,
    time: o.time ?? { start: now - 6 * 3600e3, end: now + 24 * 3600e3 },
    camera: o.camera ?? {
      lon: o.lon,
      lat: o.lat,
      height: o.height ?? 400e3,
      heading: 0,
      pitch: -90,
    },
    thumbnail: esriThumb(o.lon, o.lat, o.span ?? 1, 480, o.th ?? 600),
    ...o,
  });
  const eye = (cam, o) =>
    S({
      kind: 'camera',
      family: 'eyes',
      band: 'ground',
      archetype: 'eye',
      lon: cam.lon,
      lat: cam.lat,
      span: 0.01,
      height: 1500,
      camera: {
        lon: cam.lon,
        lat: cam.lat,
        height: 900,
        heading: cam.headingDeg,
        pitch: -30,
      },
      layers: ['eyes.public-cctv', 'ground.traffic-flow'],
      media: {
        kind: 'image',
        url: camFrameUrl(cam.id),
        refreshMs: 15000,
        cameraId: cam.id,
        headingDeg: cam.headingDeg,
        provider: cam.provider,
        city: cam.city,
      },
      telemetry: `GROUND · CAM ${cam.id.slice(-6).toUpperCase()} · ${cam.title.toUpperCase()}`,
      source: `${cam.provider} public camera`,
      ...o,
    });
  const C = Object.fromEntries(STUB_CAMS.map((c) => [c.id, c]));
  return [
    S({
      id: 'cyclone-wpac',
      kind: 'cyclone',
      family: 'hazards',
      band: 'orbit',
      archetype: 'sensor',
      severity: 5,
      title: 'Typhoon tracking toward Luzon',
      subtitle: 'Category 4 · eyewall replacement under way',
      place: 'Philippine Sea',
      lon: 126.5,
      lat: 15.4,
      span: 9,
      th: 640,
      height: 2200e3,
      layers: ['hazards.tropical-cyclones', 'weather.clouds', 'weather.wind'],
      metrics: [
        { label: 'Wind', value: 185, unit: 'km/h' },
        { label: 'Pressure', value: 935, unit: 'hPa' },
        { label: 'Moving', value: 'WNW 18', unit: 'km/h' },
      ],
      headline: { value: 185, unit: 'km/h', label: 'sustained wind' },
      telemetry: 'ORBIT · GOES IR · 185 KM/H · 935 HPA · WNW 18',
      series: series(
        [120, 130, 140, 150, 165, 175, 185, 185, 180, 185],
        360,
        now,
      ),
      seriesLabel: 'sustained wind, km/h',
      age: 2,
      time: { start: now - 72 * 3600e3, end: now + 120 * 3600e3 },
      events: [{ at: now + 30 * 3600e3, label: 'Landfall (fcst)' }],
    }),
    eye(C['354'], {
      id: 'eye-austin',
      title: 'Saturday night on Congress Ave',
      subtitle: 'Downtown crowds after the game',
      place: 'Downtown Austin, Texas',
      severity: 2,
      age: 0,
    }),
    S({
      id: 'squawk-7700',
      kind: 'squawk',
      family: 'sky',
      band: 'sky',
      archetype: 'track',
      severity: 4,
      title: 'Squawk 7700 · descending toward Halifax',
      subtitle: 'Simulated emergency track, diverting',
      place: 'Over Nova Scotia',
      lon: -62.4,
      lat: 45.1,
      span: 2.4,
      th: 520,
      height: 350e3,
      layers: ['sky.emergency-squawks', 'sky.commercial-flights'],
      metrics: [
        { label: 'Altitude', value: 'FL100', unit: '' },
        { label: 'Speed', value: 312, unit: 'kt' },
        { label: 'Squawk', value: '7700', unit: '' },
      ],
      headline: { value: '7700', unit: '', label: 'general emergency' },
      telemetry: 'SKY · FL100 ↓ · 312 KT · SQ 7700',
      track: { headingDeg: 310 },
      age: 1,
    }),
    S({
      id: 'lightning-gulf',
      kind: 'lightning',
      family: 'weather',
      band: 'sky',
      archetype: 'number',
      severity: 3,
      title: 'Lightning over the Gulf of Mexico',
      subtitle: 'A squall line pushing toward the Louisiana coast',
      place: 'Gulf of Mexico',
      lon: -90.2,
      lat: 27.4,
      span: 5,
      th: 460,
      height: 900e3,
      layers: ['weather.lightning', 'weather.radar'],
      metrics: [
        { label: 'Strikes / h', value: 4812, unit: '' },
        { label: 'Peak density', value: 38, unit: '/km²' },
      ],
      headline: { value: 4812, unit: '', label: 'strikes in the last hour' },
      telemetry: 'SKY · GLM · 4,812 STR/H · 27.4N 90.2W',
      series: series([620, 900, 1400, 2100, 2900, 3600, 4100, 4812], 15, now),
      seriesLabel: 'strikes / 15 min',
      age: 1,
    }),
    S({
      id: 'quake-24h',
      kind: 'earthquake',
      family: 'hazards',
      band: 'ground',
      archetype: 'sensor',
      severity: 4,
      title: 'M6.4 · largest quake in 24 h',
      subtitle: 'Shallow thrust event, aftershocks continuing',
      place: 'Off Hokkaido, Japan',
      lon: 144.2,
      lat: 42.1,
      span: 3.5,
      th: 480,
      height: 900e3,
      layers: ['hazards.earthquakes'],
      metrics: [
        { label: 'Magnitude', value: 6.4, unit: 'Mw' },
        { label: 'Depth', value: 38, unit: 'km' },
        { label: 'Aftershocks', value: 27, unit: '' },
      ],
      headline: { value: 6.4, unit: 'Mw', label: 'magnitude' },
      telemetry: 'GROUND · USGS · M6.4 · 38 KM DEEP',
      age: 11,
      events: [{ at: now - 14 * 3600e3, label: 'M6.4' }],
    }),
    S({
      id: 'iss-pass',
      kind: 'iss',
      family: 'orbit',
      band: 'orbit',
      archetype: 'track',
      severity: 2,
      title: 'ISS crosses your sky at 21:42',
      subtitle: 'Bright pass · max elevation 71°',
      place: 'Low Earth orbit',
      lon: -40,
      lat: 30,
      span: 30,
      th: 520,
      height: 9000e3,
      layers: ['orbit.iss-crewed', 'orbit.ground-tracks'],
      metrics: [
        { label: 'Altitude', value: 418, unit: 'km' },
        { label: 'Speed', value: 7.66, unit: 'km/s' },
        { label: 'Next pass', value: '21:42', unit: '' },
      ],
      headline: { value: '21:42', unit: '', label: 'next pass · 71° max' },
      telemetry: 'ORBIT · 418 KM · 7.66 KM/S · PASS 21:42',
      track: { headingDeg: 52 },
      age: 1,
    }),
    S({
      id: 'fires-sierra',
      kind: 'fires',
      family: 'hazards',
      band: 'ground',
      archetype: 'sensor',
      severity: 4,
      title: 'Fire cluster in the Sierra foothills',
      subtitle: 'Hotspots doubling since dawn, smoke drifting east',
      place: 'Nevada County, California',
      lon: -120.9,
      lat: 39.05,
      span: 1.6,
      th: 560,
      height: 260e3,
      layers: [
        'hazards.active-fires',
        'hazards.fire-perimeters',
        'weather.wind',
      ],
      metrics: [
        { label: 'Hotspots', value: 214, unit: '' },
        { label: 'FRP', value: 1840, unit: 'MW' },
        { label: 'Wind', value: 32, unit: 'km/h' },
      ],
      headline: { value: 214, unit: '', label: 'hotspots' },
      telemetry: 'GROUND · FIRMS VIIRS · 214 HOTSPOTS · WIND W 32',
      series: series([12, 18, 30, 44, 61, 88, 120, 160, 190, 214], 60, now),
      seriesLabel: 'hotspots / h',
      age: 4,
    }),
    S({
      id: 'gnss-baltic',
      kind: 'gnss',
      family: 'infra',
      band: 'sky',
      archetype: 'number',
      severity: 3,
      title: 'GNSS jamming over the Baltic',
      subtitle: 'Aircraft reporting degraded navigation integrity',
      place: 'Baltic Sea',
      lon: 21.0,
      lat: 56.5,
      span: 6,
      th: 480,
      height: 1500e3,
      layers: ['infra.gnss-interference', 'sky.commercial-flights'],
      metrics: [
        { label: 'Affected', value: 312, unit: 'aircraft' },
        { label: 'Area', value: 84, unit: 'k km²' },
      ],
      headline: { value: 312, unit: '', label: 'aircraft affected' },
      telemetry: 'SKY · ADS-B NIC<7 · 312 AC · 84K KM²',
      series: series([120, 180, 240, 260, 300, 312], 60, now),
      seriesLabel: 'aircraft with NIC < 7',
      age: 9,
    }),
    eye(C['tfl-00001.06502'], {
      id: 'eye-trafalgar',
      title: 'Trafalgar Square, live',
      subtitle: 'Looking south-east down Whitehall',
      place: 'Westminster, London',
      severity: 1,
      age: 0,
    }),
    S({
      id: 'circling-midtown',
      kind: 'circling',
      family: 'sky',
      band: 'sky',
      archetype: 'track',
      severity: 4,
      live: false,
      title: '3 helicopters circled Midtown Manhattan',
      subtitle: 'Detected from orbiting tracks · replay the Moment',
      place: 'Empire State Building, New York',
      lon: -73.98566,
      lat: 40.74844,
      span: 0.05,
      th: 520,
      height: 6000,
      layers: ['sky.helicopters', 'sky.commercial-flights'],
      metrics: [
        { label: 'Rotorcraft', value: 3, unit: '' },
        { label: 'Orbit radius', value: '450–650', unit: 'm' },
        { label: 'Altitude', value: '1,050–1,450', unit: 'ft' },
      ],
      headline: { value: 3, unit: 'helis', label: 'circling one point' },
      telemetry: 'SKY · 3 ROTORCRAFT · R 450–650 M · 1,050–1,450 FT',
      momentId: 'empire-state',
      illustrative: true,
      track: { headingDeg: 0, circuit: true },
      age: 76,
    }),
    S({
      id: 'novosel',
      kind: 'helicopters',
      family: 'sky',
      band: 'sky',
      archetype: 'track',
      title: 'Rotor school: 14th circuit of the day',
      subtitle: 'A training helicopter flying the pattern',
      place: 'Fort Novosel, Alabama',
      lon: -85.72,
      lat: 31.36,
      span: 0.22,
      th: 420,
      height: 40e3,
      layers: ['sky.helicopters'],
      metrics: [
        { label: 'Airborne', value: 23, unit: 'rotorcraft' },
        { label: 'Pattern alt', value: 700, unit: 'ft' },
      ],
      headline: { value: 14, unit: 'th', label: 'circuit today' },
      telemetry: 'SKY · 700 FT · 88 KT · CIRCUIT 14',
      track: { headingDeg: 140, circuit: true },
      age: 3,
      alwaysOn: true,
    }),
    S({
      id: 'bhote-koshi-2026',
      kind: 'reconstruction',
      family: 'hazards',
      band: 'inside',
      archetype: 'sensor',
      title: 'Bhote Koshi outburst flood',
      subtitle: '16 sourced observations · 3 open hypotheses',
      place: 'Rasuwa, Nepal ↔ Gyirong, Tibet',
      section: 'reconstructions',
      lon: 85.33,
      lat: 28.15,
      span: 0.3,
      th: 640,
      height: 30e3,
      camera: {
        lon: 85.3548,
        lat: 28.207,
        height: 14e3,
        heading: 344,
        pitch: -39,
      },
      layers: [
        'hazards.floods',
        'infra.recent-imagery',
        'eyes.signed-captures',
      ],
      metrics: [
        { label: 'Observations', value: 16, unit: '' },
        { label: 'Corridor', value: 145, unit: 'pts' },
        { label: 'Hypotheses', value: 3, unit: '' },
      ],
      telemetry: 'INSIDE · 4D · 16 OBS · 22 KM CORRIDOR',
      live: false,
      age: 60 * 24 * 7,
      source: 'GeoPera reconstruction · Vantor Open Data (CC BY-NC 4.0)',
      time: { start: Date.UTC(2026, 7, 26, 0), end: Date.UTC(2026, 7, 27, 12) },
      thread: 'bhote-koshi-2026',
      thumbnail: '/events/bhote-koshi-2026/post.webp',
    }),
    S({
      id: 'rain-houston',
      kind: 'rain',
      family: 'weather',
      band: 'sky',
      archetype: 'sensor',
      severity: 3,
      title: 'Heavy rain cell over Houston',
      subtitle: '60 dBZ core over the Ship Channel, moving east',
      place: 'Houston, Texas',
      lon: -95.25,
      lat: 29.74,
      span: 0.9,
      th: 540,
      height: 120e3,
      layers: ['weather.radar', 'weather.lightning'],
      metrics: [
        { label: 'Peak', value: 60, unit: 'dBZ' },
        { label: 'Rate', value: 76, unit: 'mm/h' },
      ],
      headline: { value: 76, unit: 'mm/h', label: 'rain rate' },
      telemetry: 'SKY · MRMS · 60 DBZ · 76 MM/H · E 22 KM/H',
      age: 2,
    }),
    S({
      id: 'starbase',
      kind: 'launch',
      family: 'orbit',
      band: 'orbit',
      archetype: 'track',
      title: 'Launch window opens at Starbase',
      subtitle: 'Trajectory east over the Gulf',
      place: 'Boca Chica, Texas',
      lon: -97.157,
      lat: 25.997,
      span: 0.06,
      th: 380,
      height: 12e3,
      layers: ['orbit.launches', 'orbit.ground-tracks'],
      metrics: [
        { label: 'T−', value: '06:12:00', unit: '' },
        { label: 'Weather go', value: 80, unit: '%' },
      ],
      headline: { value: 'T−06:12', unit: '', label: 'to window' },
      telemetry: 'ORBIT · PAD B · AZ 097° · T−06:12:00',
      track: { headingDeg: 97, launch: true },
      age: 6,
      events: [{ at: now + 6.2 * 3600e3, label: 'T-0' }],
    }),
    eye(C['wsdot-9520'], {
      id: 'eye-seattle',
      title: 'I-5 through downtown Seattle',
      subtitle: 'Southbound into the convention center tunnel',
      place: 'Seattle, Washington',
      age: 0,
    }),
    S({
      id: 'suez-queue',
      kind: 'queue',
      family: 'sea',
      band: 'ground',
      archetype: 'number',
      title: '41 ships waiting at Suez',
      subtitle: 'Southbound convoy holding in the anchorage',
      place: 'Gulf of Suez, Egypt',
      lon: 32.55,
      lat: 29.88,
      span: 0.35,
      th: 560,
      height: 60e3,
      layers: ['sea.ais-vessels', 'sea.tankers-cargo'],
      metrics: [
        { label: 'Waiting', value: 41, unit: 'vessels' },
        { label: 'Median wait', value: 19, unit: 'h' },
      ],
      headline: { value: 41, unit: '', label: 'vessels at anchor' },
      telemetry: 'GROUND · AIS · 41 AT ANCHOR · WAIT 19 H',
      series: series([28, 30, 33, 35, 39, 41], 120, now),
      seriesLabel: 'vessels at anchor',
      age: 5,
    }),
    S({
      id: 'north-sea-mil',
      kind: 'military',
      family: 'sky',
      band: 'sky',
      archetype: 'sensor',
      title: 'Tanker orbits over the North Sea',
      subtitle: 'Two refuelling tracks and a fighter CAP',
      place: 'North Sea',
      lon: 3.5,
      lat: 55.5,
      span: 5,
      th: 520,
      height: 900e3,
      layers: ['sky.military-aircraft'],
      metrics: [
        { label: 'Aircraft', value: 14, unit: '' },
        { label: 'Tankers', value: 3, unit: '' },
      ],
      telemetry: 'SKY · FL260 · 3 TANKERS · 14 MIL',
      age: 7,
    }),
    eye(C['no-vegvesen-3000051_1'], {
      id: 'eye-tromso',
      kind: 'camera',
      title: 'Tromsø under a Kp 6 sky',
      subtitle: 'Road camera on Sentrumstangenten, aurora nowcast high',
      place: 'Tromsø, Norway',
      age: 0,
    }),
    S({
      id: 'jet-stream',
      kind: 'jet',
      family: 'weather',
      band: 'sky',
      archetype: 'sensor',
      title: 'Jet stream at 210 kt over the Atlantic',
      subtitle: 'Eastbound flights riding it, westbound avoiding it',
      place: 'North Atlantic',
      lon: -38,
      lat: 49,
      span: 22,
      th: 460,
      height: 4500e3,
      layers: ['weather.wind', 'sky.commercial-flights'],
      metrics: [{ label: 'Core', value: 210, unit: 'kt' }],
      headline: { value: 210, unit: 'kt', label: 'jet core at FL340' },
      telemetry: 'SKY · GFS 250 HPA · 210 KT · FL340',
      age: 20,
    }),
    S({
      id: 'atl-rush',
      kind: 'airport',
      family: 'sky',
      band: 'sky',
      archetype: 'number',
      title: 'Busiest airport right now',
      subtitle: 'Hartsfield–Jackson arrival bank',
      place: 'Atlanta, Georgia',
      lon: -84.428,
      lat: 33.6407,
      span: 0.09,
      th: 600,
      height: 18e3,
      layers: [
        'sky.commercial-flights',
        'sky.holding-patterns',
        'sky.airport-boards',
      ],
      metrics: [
        { label: 'Movements', value: 182, unit: '/h' },
        { label: 'Holding', value: 6, unit: '' },
      ],
      headline: { value: 182, unit: '/h', label: 'movements' },
      telemetry: 'SKY · KATL · 182 MVT/H · 6 HOLDING',
      series: series([120, 140, 166, 170, 182, 176, 181, 182], 30, now),
      seriesLabel: 'movements / h',
      age: 1,
      alwaysOn: true,
    }),
    eye(C['ca-d4-tv301'], {
      id: 'eye-sf',
      title: 'US-101 at Octavia, San Francisco',
      subtitle: 'Central Freeway merging into Mission',
      place: 'San Francisco, California',
      age: 0,
      alwaysOn: true,
    }),
    S({
      id: 'tokyo-rush',
      kind: 'transit',
      family: 'ground',
      band: 'ground',
      archetype: 'sensor',
      title: 'Rush hour on the Yamanote line',
      subtitle: 'Headways at 2 min 30 s through Shinjuku',
      place: 'Shinjuku, Tokyo',
      lon: 139.7,
      lat: 35.69,
      span: 0.05,
      th: 600,
      height: 9e3,
      layers: ['ground.transit-vehicles', 'ground.rail'],
      metrics: [
        { label: 'Trains moving', value: 1840, unit: '' },
        { label: 'On time', value: 98.6, unit: '%' },
      ],
      telemetry: 'GROUND · GTFS-RT · 1,840 TRAINS · 98.6% OT',
      age: 2,
      alwaysOn: true,
    }),
    S({
      id: 'aurora',
      kind: 'aurora',
      family: 'weather',
      band: 'orbit',
      archetype: 'sensor',
      title: 'Aurora oval reaching 60°N tonight',
      subtitle: 'Kp 6 storm, clear skies after 22:00',
      place: 'Northern Scandinavia',
      lon: 18.95,
      lat: 69.65,
      span: 8,
      th: 600,
      height: 1200e3,
      layers: ['weather.clouds'],
      metrics: [
        { label: 'Kp', value: 6, unit: '' },
        { label: 'Cloud', value: 20, unit: '%' },
      ],
      headline: { value: 'Kp 6', unit: '', label: 'geomagnetic storm' },
      telemetry: 'ORBIT · OVATION · KP 6 · OVAL 60N',
      series: series([2, 3, 3, 4, 5, 6, 6], 180, now),
      seriesLabel: 'Kp index',
      age: 15,
    }),
    S({
      id: 'singapore',
      kind: 'strait',
      family: 'sea',
      band: 'ground',
      archetype: 'sensor',
      title: 'Singapore Strait at capacity',
      subtitle: 'Eastbound lane full, 318 ships at anchor',
      place: 'Singapore Strait',
      lon: 103.85,
      lat: 1.22,
      span: 0.4,
      th: 420,
      height: 70e3,
      layers: ['sea.ais-vessels'],
      metrics: [
        { label: 'Transits', value: 22, unit: '/h' },
        { label: 'At anchor', value: 318, unit: '' },
      ],
      telemetry: 'GROUND · AIS · 22 TRANSITS/H · 318 ANCHORED',
      age: 3,
      alwaysOn: true,
    }),
  ];
}