// ── The public event surface (EVENTS_PLAN.md Phase 14a) ────────────────────
//
// The phase's shipped claim: **a visitor with no account sees the calendar, one
// event's page and an arc, and sees nothing an operator did not announce.**
//
// What is worth testing here is almost entirely the second half. The reads
// themselves are joins; the decisions are about what is absent:
//
//   • a rehearsal, an unlisted definition and a draft are absent from every
//     surface, and absent the same way — a 404 that cannot be told from a slug
//     that never existed
//   • the plan behind an event (phases, steps, actions, params) is never
//     published; a live run carries the LABEL of its phase and nothing else
//   • `failed` and `missed` are published as `cancelled`, because the difference
//     between them is about the deployment rather than about the event
//   • `member_key` never leaves the server, even on a results table
//   • a participant's own history obeys the same two exclusions as the calendar,
//     so attending an unannounced event does not disclose that it exists
//
// Stubbed at the `.db` layer, the shape `eventSchedule.test.js` uses.

process.env.DB_HOST = '127.0.0.1'
process.env.DB_PORT = '59999'

const { test, beforeEach, afterEach, after } = require('node:test')
const assert = require('node:assert/strict')

const publicModel = require('../src/model/events/eventPublic.model')
const definitionsDb = require('../src/model/events/eventDefinitions.db')
const runsDb = require('../src/model/events/eventRuns.db')
const seriesDb = require('../src/model/events/eventSeries.db')
const versionsDb = require('../src/model/events/eventVersions.db')
const participantsDb = require('../src/model/events/eventRunParticipants.db')
const db = require('../src/utils/db')

after(() => db.close())

const NOW = new Date('2026-09-01T12:00:00Z')

const SPEC = {
  schedule: { kind: 'manual' },
  phases: [
    { id: 'muster', label: 'The muster', steps: [{ id: 's1', action: 'core.announce' }] },
    { id: 'assault', label: 'The assault', steps: [] },
  ],
}

const originals = {}
for (const [name, mod] of [
  ['definitionsDb', definitionsDb],
  ['runsDb', runsDb],
  ['seriesDb', seriesDb],
  ['versionsDb', versionsDb],
  ['participantsDb', participantsDb],
]) {
  originals[name] = { mod, fns: { ...mod } }
}
const restoreOriginals = () => {
  for (const { mod, fns } of Object.values(originals)) Object.assign(mod, fns)
}

let store

const definition = (over = {}) => ({
  id: 1,
  title: 'The Yew Invasion',
  slug: 'the-yew-invasion',
  summary: 'Orcish warbands are massing north of Yew.',
  body: '<p>They came at dusk.</p>',
  image_url: null,
  state: 'ready',
  listed: true,
  timezone: 'America/New_York',
  series_id: null,
  series_name: null,
  series_slug: null,
  current_version_id: 100,
  spec: SPEC,
  ...over,
})

const run = (over = {}) => ({
  id: 3692,
  definition_id: 1,
  version_id: 100,
  scope: '',
  status: 'completed',
  // Every one of these is a field the public shapes must NOT carry. They are on
  // the fixture on purpose: a `{ ...run }` anywhere in the model would publish
  // them, and the assertions below are what would catch it.
  health: 'degraded',
  cleanup_status: 'incomplete',
  claimed_by: 'worker-3',
  claim_expires_at: new Date(),
  last_error: 'sidecar responded 503',
  current_phase: 'assault',
  scheduled_for: new Date('2026-08-29T00:00:00Z'),
  started_at: new Date('2026-08-29T00:00:05Z'),
  ended_at: new Date('2026-08-29T01:30:00Z'),
  timezone: 'America/New_York',
  rehearsal: false,
  results_published_at: new Date('2026-08-29T02:00:00Z'),
  ...over,
})

function installStubs() {
  definitionsDb.getPublicBySlug = async (slug) => {
    const d = store.definitions.find((x) => x.slug === slug)
    return d && d.state === 'ready' && d.listed ? d : undefined
  }
  definitionsDb.listPublicBySeries = async (seriesId) =>
    store.definitions.filter((d) => d.series_id === seriesId && d.state === 'ready' && d.listed)
  definitionsDb.findSchedulable = async ({ listedOnly = false } = {}) =>
    store.definitions
      .filter((d) => d.state === 'ready' && (!listedOnly || d.listed))
      .map((d) => ({ ...d, version_spec: d.spec }))

  runsDb.listInWindow = async ({ from, to, publicOnly = false }) =>
    store.runs.filter((r) => {
      const at = new Date(r.scheduled_for)
      if (at < from || at >= to) return false
      if (!publicOnly) return true
      const d = store.definitions.find((x) => x.id === r.definition_id)
      return !r.rehearsal && d && d.listed && d.state !== 'archived'
    })
  runsDb.listPublicForDefinition = async (id) =>
    store.runs
      .filter((r) => r.definition_id === id && !r.rehearsal)
      .sort((a, b) => new Date(b.scheduled_for) - new Date(a.scheduled_for))

  seriesDb.getById = async (id) => store.series.find((s) => s.id === id) || null
  seriesDb.getBySlug = async (slug) => store.series.find((s) => s.slug === slug) || null
  versionsDb.getById = async (id) => (id === 100 ? { id, spec: SPEC } : null)
  participantsDb.listForRun = async () => store.participants
  participantsDb.listForUser = async () => store.history
}

beforeEach(() => {
  const d = definition()
  store = {
    definitions: [d],
    // The joined shape `listInWindow` answers with.
    runs: [{ ...run(), definition_title: d.title, definition_slug: d.slug }],
    series: [],
    participants: [],
    history: [],
  }
  installStubs()
})
afterEach(restoreOriginals)

// ── The calendar ───────────────────────────────────────────────────────────

test('a calendar entry carries no operational field at all', async () => {
  const result = await publicModel.calendar({ from: '2026-08-01', to: '2026-09-15', now: NOW })
  assert.equal(result.ok, true)
  const [entry] = result.entries
  assert.equal(entry.title, 'The Yew Invasion')
  // The whole security property of this file, asserted positively: the entry has
  // exactly these keys and gaining one is a deliberate act.
  assert.deepEqual(Object.keys(entry).sort(), [
    'kind', 'live', 'scheduledFor', 'seriesName', 'seriesSlug', 'slug', 'status', 'timezone', 'title',
  ])
})

test('the calendar defaults to a month from now when no window is given', async () => {
  const result = await publicModel.calendar({ now: NOW })
  assert.equal(result.ok, true)
  assert.equal(new Date(result.window.from).getTime(), NOW.getTime())
  const days = (new Date(result.window.to) - new Date(result.window.from)) / 86_400_000
  assert.equal(days, publicModel.DEFAULT_WINDOW_DAYS)
})

test('a window wider than the cap is refused rather than served slowly', async () => {
  const result = await publicModel.calendar({ from: '2026-01-01', to: '2026-12-31', now: NOW })
  assert.equal(result.ok, false)
  assert.equal(result.status, 400)
})

test('a projection is not emitted for an instant a run already occupies', async () => {
  // The definition recurs weekly on the Saturday its one run already sits on.
  store.definitions[0].spec = {
    ...SPEC,
    schedule: { kind: 'weekly', days: ['saturday'], time: '00:00' },
  }
  const result = await publicModel.calendar({ from: '2026-08-28', to: '2026-08-31', now: NOW })
  const at = result.entries.filter(
    (e) => new Date(e.scheduledFor).getTime() === new Date('2026-08-29T00:00:00Z').getTime(),
  )
  assert.equal(at.length, 1)
  assert.equal(at[0].kind, 'run')
})

// ── What the public never sees ─────────────────────────────────────────────

test('an unlisted event is absent from the calendar and 404s on its own page', async () => {
  store.definitions[0].listed = false
  const cal = await publicModel.calendar({ from: '2026-08-01', to: '2026-09-15', now: NOW })
  assert.deepEqual(cal.entries, [])

  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.ok, false)
  assert.equal(page.status, 404)
})

test('a draft answers exactly as an unlisted one does — indistinguishable from no such slug', async () => {
  store.definitions[0].state = 'draft'
  const draft = await publicModel.event('the-yew-invasion')
  const missing = await publicModel.event('no-such-event')
  assert.deepEqual(draft, missing)
})

test('a rehearsal is absent from the calendar and from an event page', async () => {
  store.runs[0].rehearsal = true
  const cal = await publicModel.calendar({ from: '2026-08-01', to: '2026-09-15', now: NOW })
  assert.deepEqual(cal.entries, [])

  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.ok, true)
  assert.deepEqual(page.event.past, [])
})

test('an occurrence publishes no health, no cleanup state, no claim and no error', async () => {
  store.runs[0].status = 'running'
  const page = await publicModel.event('the-yew-invasion')
  const occurrence = page.event.current
  for (const leaked of ['health', 'cleanupStatus', 'claimedBy', 'claimExpiresAt', 'lastError', 'versionId']) {
    assert.equal(occurrence[leaked], undefined, `${leaked} must not be published`)
  }
  assert.equal(JSON.stringify(page).includes('sidecar responded 503'), false)
})

test('a live run carries its phase LABEL, and never the spec behind it', async () => {
  store.runs[0].status = 'running'
  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.event.current.phase, 'The assault')
  // The step ids in the fixture spec are the tell: if the spec were published
  // anywhere in this answer, this would find it.
  assert.equal(JSON.stringify(page).includes('core.announce'), false)
})

test('a phase the pinned version does not name renders nothing rather than an id', async () => {
  store.runs[0].status = 'running'
  store.runs[0].current_phase = 'a-phase-since-renamed'
  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.event.current.phase, null)
})

test('failed and missed are both published as cancelled', async () => {
  for (const status of ['failed', 'missed']) {
    store.runs[0].status = status
    const page = await publicModel.event('the-yew-invasion')
    assert.equal(page.event.past[0].status, 'cancelled', status)
  }
})

test('paused is published as live — an operator holding a run is not a public state', async () => {
  store.runs[0].status = 'paused'
  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.event.current.status, 'live')
  assert.equal(page.event.live, true)
})

// ── Which side of now an occurrence falls on ───────────────────────────────
//
// Both of these were found by the browser walk, and both are the same mistake:
// the split reading a STATUS where it should read a clock. Dates here are
// relative to the real clock, because `event()` asks `Date.now()` — a run
// "next Friday" has to still be next Friday when this runs.

const inDays = (n) => new Date(Date.now() + n * 86_400_000)

test('a cancelled occurrence in the FUTURE is what is coming, not what happened', async () => {
  // It was announced and it has been called off, and "next Friday is off" is
  // exactly what somebody checking the calendar came to find out. Filing it
  // under "previously" tells them it already happened, which is the one thing
  // certainly untrue about it.
  store.runs = [
    { ...run({ id: 1, status: 'cancelled', scheduled_for: inDays(4), ended_at: null, results_published_at: null }) },
    { ...run({ id: 2, status: 'scheduled', scheduled_for: inDays(11), ended_at: null, results_published_at: null }) },
  ]
  const page = await publicModel.event('the-yew-invasion')
  assert.deepEqual(page.event.upcoming.map((o) => o.runId), [1, 2])
  assert.deepEqual(page.event.past, [])
})

test('`next` skips a cancelled occurrence even though it is listed as coming', async () => {
  // The headline answers "when is the next one", and a cancelled occurrence is
  // not one. An event whose only future occurrence was called off has no `next`
  // and says so, while the cancellation is still listed below.
  store.runs = [
    { ...run({ id: 1, status: 'cancelled', scheduled_for: inDays(4), ended_at: null, results_published_at: null }) },
  ]
  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.event.next, null)
  assert.equal(page.event.upcoming.length, 1)
})

test('a scheduled occurrence whose moment has gone by is in the past', async () => {
  // The other direction of the same rule: the runner had not reached it, so its
  // status still says `scheduled` while the evening it named is over.
  store.runs = [
    { ...run({ id: 1, status: 'scheduled', scheduled_for: inDays(-3), ended_at: null, results_published_at: null }) },
  ]
  const page = await publicModel.event('the-yew-invasion')
  assert.deepEqual(page.event.upcoming, [])
  assert.deepEqual(page.event.past.map((o) => o.runId), [1])
})

// ── Results ────────────────────────────────────────────────────────────────

test('a results row publishes the score and the rank and never the member key', async () => {
  store.participants = [
    { id: 1, member_key: 'serial:0x40001234', user_id: 7, score: 1420, rank_at: 1, meta: { name: 'Aldric' } },
  ]
  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.event.results.participants[0].name, 'Aldric')
  assert.equal(page.event.results.participants[0].rank, 1)
  assert.equal(JSON.stringify(page).includes('0x40001234'), false)
  assert.equal(JSON.stringify(page).includes('user_id'), false)
})

test('an unpublished results table is absent rather than empty', async () => {
  store.runs[0].results_published_at = null
  store.participants = [{ id: 1, member_key: 'k', score: 10, rank_at: null, meta: null }]
  const page = await publicModel.event('the-yew-invasion')
  assert.equal(page.event.results, null)
})

test('?run= selects which occurrence the results are about', async () => {
  const older = {
    ...run({ id: 3600, scheduled_for: new Date('2026-08-22T00:00:00Z') }),
    definition_title: 'The Yew Invasion',
    definition_slug: 'the-yew-invasion',
  }
  store.runs.push(older)
  const page = await publicModel.event('the-yew-invasion', { runId: '3600' })
  assert.equal(page.event.results.runId, 3600)
})

test('a run id belonging to no occurrence of this event renders the page anyway', async () => {
  // A stale link in a months-old mail should land on the event it was about, not
  // on a dead end.
  const page = await publicModel.event('the-yew-invasion', { runId: '999999' })
  assert.equal(page.ok, true)
  assert.equal(page.event.slug, 'the-yew-invasion')
})

// ── The arc ────────────────────────────────────────────────────────────────

test('a series with nothing listed in it is a 404, not an empty page', async () => {
  store.series = [{ id: 5, name: 'The Yew Campaign', slug: 'the-yew-campaign', description: null }]
  store.definitions[0].series_id = 5
  store.definitions[0].listed = false
  const arc = await publicModel.series('the-yew-campaign')
  assert.equal(arc.ok, false)
  assert.equal(arc.status, 404)
})

test('an arc lists its listed events and nothing about their plans', async () => {
  store.series = [{ id: 5, name: 'The Yew Campaign', slug: 'the-yew-campaign', description: 'An arc.' }]
  store.definitions[0].series_id = 5
  const arc = await publicModel.series('the-yew-campaign')
  assert.equal(arc.ok, true)
  assert.deepEqual(Object.keys(arc.series.events[0]).sort(), ['imageUrl', 'slug', 'summary', 'title'])
})

// ── Participation history ──────────────────────────────────────────────────

test('history publishes the rank as null until results were published', async () => {
  store.history = [
    {
      id: 9,
      run_id: 3692,
      score: 1420,
      rank_at: null,
      joined_at: new Date(),
      meta: null,
      scheduled_for: new Date('2026-08-29T00:00:00Z'),
      started_at: null,
      ended_at: null,
      status: 'completed',
      scope: '',
      timezone: 'UTC',
      results_published_at: null,
      definition_title: 'The Yew Invasion',
      definition_slug: 'the-yew-invasion',
      series_name: null,
      series_slug: null,
    },
  ]
  const result = await publicModel.history(7)
  assert.equal(result.entries[0].rank, null)
  assert.equal(result.entries[0].resultsPublishedAt, null)
  assert.equal(result.entries[0].score, 1420)
})

test('history publishes no member key', async () => {
  store.history = [
    {
      id: 9,
      run_id: 3692,
      member_key: 'serial:0x40001234',
      score: 1,
      rank_at: 1,
      joined_at: new Date(),
      meta: null,
      scheduled_for: new Date(),
      status: 'completed',
      timezone: 'UTC',
      definition_title: 't',
      definition_slug: 's',
    },
  ]
  const result = await publicModel.history(7)
  assert.equal(JSON.stringify(result).includes('0x40001234'), false)
})