// ── Core's own engagement triggers ─────────────────────────────────────────
//
// ENGAGEMENT.md §4.3 and Phase 2. The twin of config/coreStreams.js, and
// deliberately the SAME FIVE IDS — that is the org lead's §7.2 decision, taken at
// the start of this phase: **one namespace.** A trigger is not a second thing
// standing next to a stream; it is a payload contract attached to an id that may
// also carry a subscription toggle. `news.post` names one event, whether the
// question being asked of it is "may I push this?" or "what may a template
// interpolate?".
//
// What that buys, concretely: `notification_channel_prefs.stream_id` (§4.5) stays
// single-keyed. Under two namespaces it would have needed a `kind` discriminator
// in its primary key, and `news.post` would have named two different things
// forever.
//
// What it costs is the rule enforced in registries.js: an id has ONE owner across
// both facets, so a module cannot attach a payload contract to another module's
// stream, and core cannot attach one to a module's. Core's five ids below are
// already core's five streams, so all five are the same-owner upgrade case.
//
// **These declare; nothing here emits yet.** Phase 2 is the contract only — the
// Team pipeline keeps its own hardcoded mail until Phase 6 migrates it onto the
// engine, and this file is what it migrates ONTO. Registering the declarations a
// phase early is the same decision registerCore() has always taken: a registry
// whose first real exercise is a module is a registry that has already drifted.
//
// Every variable carries an `example`, and that is required rather than
// decorative (§4.3 property 3). It is what lets the template editor preview and
// test-send without a live game event, which is the reason template systems go
// untested.

const TRIGGERS = [
  {
    id: 'news.post',
    label: 'News post published',
    description: 'A news / Five-on-Friday / newsletter post was published.',
    kind: 'event',
    // No subjectKey. The subject of a cooldown here is the USER, not the post —
    // "do not mail me about news more than once an hour" is the useful rule, and
    // keying it per post would make every cooldown a no-op. Compare the four
    // Team triggers below, where the Team genuinely is the subject.
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'title', type: 'string', required: true, example: 'Five on Friday — the Yew invasion',
        description: 'The post title.' },
      { name: 'excerpt', type: 'string', required: false, example: 'Four new champion spawns, and the fate of the Yew moongate…',
        description: 'A plain-text summary, already stripped of markup.' },
      { name: 'category', type: 'string', required: false, example: 'Five on Friday',
        description: 'The post category, when it has one.' },
      // **`/site/news`, the LIST, and not a per-post path.** The example said
      // `/news/<slug>` when this was declared with no caller; Phase 11 gave it
      // one and the path turned out not to exist — `App.jsx` mounts `/site/news`
      // and nothing under it, which is why `announceJobs.logic.js` links the list
      // from the Discord and town-crier announcements too. An `example` is what
      // the template editor previews and test-sends with (§4.3 property 3), so an
      // example naming a 404 is a preview that looks right and a mail that is not.
      { name: 'postUrl', type: 'url', required: true, example: '/site/news',
        description: 'Site-relative path to the post. The news list today — the site has no per-post route.' },
    ],
  },

  // ── Teams (TEAMS.md Part 6) ─────────────────────────────────────────────
  //
  // All four ceiling at `members` and not one of them higher. Who may be told
  // about a Team event is the access resolver's answer and always has been
  // (coreStreams.js says the same thing about the push catalog); the ceiling is
  // that rule written where a RULE EDITOR has to obey it too. Without it an
  // operator could point a rule at `authenticated` and mail a private Team's
  // forum excerpt to the whole site.
  {
    id: 'team.member.joined',
    label: 'Team — new member',
    description: 'Someone joined a Team.',
    kind: 'event',
    subjectKey: 'teamName',
    audience: 'members',
    ceiling: 'members',
    version: 1,
    variables: [
      { name: 'teamName', type: 'string', required: true, example: 'The Silver Anvil',
        description: 'The Team the event is about. Also the cooldown subject.' },
      { name: 'memberName', type: 'string', required: true, example: 'Darrow',
        description: 'Display name of the member who joined.' },
      { name: 'teamUrl', type: 'url', required: false, example: '/guilds/the-silver-anvil',
        description: 'Site-relative path to the Team page. Absent when no module supplies a pageUrlTemplate.' },
    ],
  },
  {
    id: 'team.leadership.changed',
    label: 'Team — leadership change',
    description: 'Leadership changed in a Team.',
    kind: 'event',
    subjectKey: 'teamName',
    audience: 'members',
    ceiling: 'members',
    version: 1,
    variables: [
      { name: 'teamName', type: 'string', required: true, example: 'The Silver Anvil',
        description: 'The Team the event is about. Also the cooldown subject.' },
      { name: 'leaderName', type: 'string', required: true, example: 'Marisol',
        description: 'Display name of the new leader.' },
      { name: 'teamUrl', type: 'url', required: false, example: '/guilds/the-silver-anvil',
        description: 'Site-relative path to the Team page.' },
    ],
  },
  {
    id: 'team.forum.post',
    label: 'Team — new forum post',
    description: 'A new thread or reply in a Team forum.',
    kind: 'event',
    subjectKey: 'teamName',
    audience: 'members',
    ceiling: 'members',
    version: 1,
    variables: [
      { name: 'teamName', type: 'string', required: true, example: 'The Silver Anvil',
        description: 'The Team the event is about. Also the cooldown subject.' },
      { name: 'authorName', type: 'string', required: true, example: 'Darrow',
        description: 'Display name of the poster.' },
      { name: 'threadTitle', type: 'string', required: true, example: 'Tuesday champ rotation',
        description: 'Title of the thread the post belongs to.' },
      { name: 'excerpt', type: 'string', required: false, example: 'Moving the Tuesday run an hour later…',
        description: 'Plain-text excerpt of the post body, already stripped of markup.' },
      { name: 'postUrl', type: 'url', required: false, example: '/guilds/the-silver-anvil/forum/412',
        description: 'Site-relative path to the post.' },
    ],
  },
  {
    id: 'team.announcement',
    label: 'Team — announcement',
    description: 'A leader posted an announcement in a Team.',
    kind: 'event',
    subjectKey: 'teamName',
    audience: 'members',
    ceiling: 'members',
    version: 1,
    variables: [
      { name: 'teamName', type: 'string', required: true, example: 'The Silver Anvil',
        description: 'The Team the event is about. Also the cooldown subject.' },
      { name: 'authorName', type: 'string', required: true, example: 'Marisol',
        description: 'Display name of the leader who posted.' },
      { name: 'title', type: 'string', required: true, example: 'Siege practice moved to Sunday',
        description: 'The announcement title.' },
      { name: 'excerpt', type: 'string', required: false, example: 'We are moving practice to Sunday 8pm…',
        description: 'Plain-text excerpt of the announcement body.' },
      { name: 'postUrl', type: 'url', required: false, example: '/guilds/the-silver-anvil/forum/419',
        description: 'Site-relative path to the announcement.' },
    ],
  },

  // ── The event system (EVENTS.md §J — Phase 10) ──────────────────────────
  //
  // **Seven triggers, one per moment a run passes through that somebody outside
  // the run console might want to hear about — and Events owns none of the
  // delivery.** A run emits; an operator's rule decides who is told, on what,
  // and how often. That is the whole of §J's "clean fit" row, and it is why
  // there is no announcement machinery anywhere in `utils/eventRunner.js`
  // beyond a call to `emit`.
  //
  // **Six are ceilinged `authenticated` and one at `admin`** (§J, and the org
  // lead 2026-09-04). `run.failed` is an operational fact — a step ran out of
  // attempts, the world may be half-changed — and a rule that mailed it to
  // every subscriber would publish the deployment's incidents. The other six
  // describe a public event happening in public, so they sit exactly where
  // `news.post` sits: ceiling `authenticated`, default audience `subscribers`,
  // which is "people who asked to be told" rather than the whole user table.
  //
  // **Every `description` here is read by two audiences**, and the second one is
  // easy to forget: the rule editor's catalog, and — through
  // `projection.project`'s `intro` fallback — every recipient of an unauthored
  // render through `notify.event` or `inapp.event`. So each is prose a player
  // can read rather than a note to the operator. The live rig caught the
  // original `run.failed` line, which ended "Staff-facing." and put those words
  // in an administrator's own inbox item. Who a trigger is for is said by its
  // CEILING, which is the only place that can enforce it anyway.
  //
  // **`subjectKey: 'runId'` on every one of them**, and it is the one place
  // these differ from `news.post`. A cooldown keyed on the user would make
  // `phase.changed` mean "at most one phase of at most one event an hour",
  // silently swallowing the second wave of an invasion because the first wave's
  // mail went out forty minutes ago. Keyed on the run it means "at most one
  // line an hour ABOUT THIS RUN", which is the useful sentence — and across
  // runs of the same definition the ids differ, so a weekly event is not
  // throttled by last week's.
  //
  // **None of the six public ones declares a `url` variable, deliberately.**
  // There is no public event page until Phase 14 — `App.jsx` mounts nothing
  // under `/site/events` — and `news.post` has already paid for this mistake
  // once: its `postUrl` example named `/news/<slug>`, a path that does not
  // exist, and the template editor previewed a link that was dead in every mail
  // it sent. A variable added in Phase 14 alongside the page it points at is a
  // version bump; a variable shipped now is a 404 in an operator's first
  // announcement. `run.failed` is the exception because its destination exists
  // today: `/admin/events/runs/:runId` is a real route and an admin can read it.
  {
    id: 'event.run.scheduled',
    label: 'Event — scheduled',
    description: 'A new event has been added to the calendar.',
    kind: 'event',
    subjectKey: 'runId',
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
      { name: 'summary', type: 'string', required: false, example: 'Orcish warbands are massing north of Yew.',
        description: 'The event summary, as authored.' },
      { name: 'seriesName', type: 'string', required: false, example: 'The Yew Campaign',
        description: 'The arc this event belongs to, when it belongs to one.' },
      { name: 'startsAt', type: 'datetime', required: true, example: '2026-09-12T20:00:00.000Z',
        description: 'When the occurrence is due to start, UTC.' },
      { name: 'timezone', type: 'string', required: false, example: 'America/New_York',
        description: 'The shard-local zone the schedule was authored in.' },
      // **A presentational fragment, and §4.6.1 convention 1 is what sanctions
      // one.** `startsAt` is a `datetime`, which the seam normalises to an ISO
      // string — correct as data and unreadable in a mail, and a template has no
      // logic with which to format it. So the formatting happens at the emitter,
      // in the shard-local zone, and arrives as a variable whose `example` shows
      // exactly what it produces. Same trade `forWhom` makes in the auth bodies.
      { name: 'startsAtLabel', type: 'string', required: false,
        example: 'Saturday 12 September at 8:00 pm (America/New_York)',
        description: 'The start time written out in the shard-local zone, for a mail to read.' },
    ],
  },
  {
    id: 'event.run.started',
    label: 'Event — starting now',
    description: 'A scheduled event has begun.',
    kind: 'event',
    subjectKey: 'runId',
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
      { name: 'summary', type: 'string', required: false, example: 'Orcish warbands are massing north of Yew.',
        description: 'The event summary, as authored.' },
      { name: 'seriesName', type: 'string', required: false, example: 'The Yew Campaign',
        description: 'The arc this event belongs to, when it belongs to one.' },
      { name: 'startsAt', type: 'datetime', required: true, example: '2026-09-12T20:00:00.000Z',
        description: 'When it actually started, UTC.' },
      { name: 'timezone', type: 'string', required: false, example: 'America/New_York',
        description: 'The shard-local zone the schedule was authored in.' },
      // **A presentational fragment, and §4.6.1 convention 1 is what sanctions
      // one.** `startsAt` is a `datetime`, which the seam normalises to an ISO
      // string — correct as data and unreadable in a mail, and a template has no
      // logic with which to format it. So the formatting happens at the emitter,
      // in the shard-local zone, and arrives as a variable whose `example` shows
      // exactly what it produces. Same trade `forWhom` makes in the auth bodies.
      { name: 'startsAtLabel', type: 'string', required: false,
        example: 'Saturday 12 September at 8:00 pm (America/New_York)',
        description: 'The start time written out in the shard-local zone, for a mail to read.' },
    ],
  },
  {
    id: 'event.phase.changed',
    label: 'Event — a new phase',
    description: 'An event that is under way has moved on to its next stage.',
    kind: 'event',
    subjectKey: 'runId',
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
      { name: 'phase', type: 'string', required: true, example: 'assault',
        description: 'The phase key just entered, as authored in the spec.' },
      { name: 'phaseLabel', type: 'string', required: false, example: 'The assault',
        description: 'The phase label, when the spec gave it one. Falls back to the key.' },
      { name: 'phaseIndex', type: 'int', required: true, example: 2,
        description: 'Which phase this is, counting from 1.' },
      { name: 'phaseCount', type: 'int', required: true, example: 4,
        description: 'How many phases the pinned version has in total.' },
    ],
  },
  {
    id: 'event.run.ending',
    label: 'Event — winding down',
    description: 'An event is drawing to a close.',
    kind: 'event',
    subjectKey: 'runId',
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
    ],
  },
  {
    id: 'event.run.completed',
    label: 'Event — finished',
    description: 'An event has finished.',
    kind: 'event',
    subjectKey: 'runId',
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
      { name: 'summary', type: 'string', required: false, example: 'Orcish warbands are massing north of Yew.',
        description: 'The event summary, as authored.' },
      // Counted from `event_run_participants` at emit. Zero on a run whose
      // module reported nobody, which is every run until a module collects —
      // a template that says "47 took part" needs a number that is never
      // missing, and "0" is the honest one.
      { name: 'participantCount', type: 'int', required: true, example: 47,
        description: 'How many participants the run recorded. Zero when nothing collected any.' },
      { name: 'durationMinutes', type: 'int', required: true, example: 95,
        description: 'How long the run took, start to end, in whole minutes.' },
    ],
  },
  {
    id: 'event.run.cancelled',
    label: 'Event — cancelled',
    description: 'A scheduled event was cancelled by a member of staff.',
    kind: 'event',
    subjectKey: 'runId',
    audience: 'subscribers',
    ceiling: 'authenticated',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
      // **The operator's reason, and not the run's `last_error`.** `cancel`
      // takes a `{ reason }` a human typed for other humans; a diagnostic
      // string is for the run console and would read as gibberish in a mail.
      { name: 'reason', type: 'string', required: false, example: 'The shard is down for an emergency patch.',
        description: 'What the staff member gave as the reason, when they gave one.' },
    ],
  },
  {
    id: 'event.run.failed',
    label: 'Event — run failed',
    description: 'An event stopped before it finished.',
    kind: 'event',
    subjectKey: 'runId',
    // **`admin`, and both halves of that.** The ceiling is the security
    // boundary (§J, G24): no rule may ever widen this past admins, because a
    // failure names the deployment's own broken machinery. The default audience
    // matches, so a rule created from this trigger starts where it must end.
    audience: 'admin',
    ceiling: 'admin',
    version: 1,
    variables: [
      { name: 'runId', type: 'string', required: true, example: '3692',
        description: 'The run this is about. Also the cooldown subject.' },
      { name: 'title', type: 'string', required: true, example: 'The Yew Invasion',
        description: 'The event title.' },
      { name: 'phase', type: 'string', required: false, example: 'assault',
        description: 'The phase it failed in, when it had entered one.' },
      { name: 'error', type: 'string', required: false, example: 'sidecar responded 503',
        description: 'The run’s last error, verbatim from the run row.' },
      // The one url variable in this file's Phase 10 block, and the reason is
      // that this route exists TODAY. See the note above the six.
      { name: 'runUrl', type: 'url', required: true, example: '/admin/events/runs/3692',
        description: 'Site-relative path to the run console.' },
    ],
  },
]

module.exports = { TRIGGERS }