// src/commands/help.js
//
// Help renderer.
//
//   /help                  → short, scannable list of every command (one line each)
//                            with grouped headings.
//   /help <command>        → detailed usage + examples for one command.
//
// The previous version was a single 5KB blob of markdown with hard-to-read
// inline URLs. This split keeps the top-level message short for both 1:1 and
// group spaces, and pushes verbose detail behind `/help <command>`.

const SHORT_HELP = {
  // Work orders
  wohistory:     'Recent work order history for a store',
  wosummary:     'AI summary of a specific work order',
  woattachments: 'Download all attachments for a work order',

  // AV / phones
  avstatus:    'AV / device status for a store (alias: /wostatus)',
  phonestatus: 'DECT + IP phone status for a store',

  // Jira
  jirahistory: 'Recent Jira tickets for a store (optionally filtered by component)',
  jiraticket:  'Detailed AI summary of one Jira ticket',
  jirapoll:    'Run the hourly Jira poller on demand (enrich unassigned AV/phone tickets)',

  // Provisioning / mutating
  'provision-dect': 'Interactive DECT provisioning card (add/remove bases & handsets)',
  'provision-vc':   'Fully provision a video conferencing device',
  vcmonitor:        'On-demand VC packet capture (start/stop/status)',
  offboarduser:     'Offboard user: revoke Webex OAuth tokens + wipe MDM CORP devices',
  webexhost:        'Check / assign Webex Meetings host license on aeo2go.webex.com',

  // Bulk / utility
  bulkavstatuscsv: 'Generate full AV devices report (CSV)',
  bulkavswitchcsv: 'Generate rear-switch port report (CSV)',
  devicesbymodel:  'Meraki devices grouped by model (CSV)',
};

const LONG_HELP = {
  avstatus: {
    title: '/avstatus',
    usage: ['/avstatus <store>', '/avstatus <store> detailed'],
    examples: ['/avstatus 782', '/avstatus 782 detailed'],
    notes: [
      'Aliases: `/wostatus`.',
      'HTTP equivalent: `?storeNum=<n>&detailed=true`.',
      'Includes Meraki deep links per device. For interactive topology, open `/av-store-dashboard.html`.',
    ],
  },
  phonestatus: {
    title: '/phonestatus',
    usage: ['/phonestatus <store>', '/phonestatus <store> detailed'],
    examples: ['/phonestatus 782', '/phonestatus 782 detailed'],
    notes: [
      'Shows DECT basestations + IP phones with Meraki links.',
      'Detailed mode adds firmware, serial, SIP details and errors.',
      'Web dashboard: `/phone-store-dashboard.html`.',
    ],
  },
  'provision-dect': {
    title: '/provision-dect',
    usage: ['/provision-dect <store>'],
    examples: ['/provision-dect 782'],
    notes: [
      'Aliases: `/provisiondect`.',
      'Posts an interactive card to add/remove bases and handsets.',
      'Looks up "Store XXXX" network using 5-digit person email; access codes are auto-generated.',
    ],
  },
  'provision-vc': {
    title: '/provision-vc',
    usage: ['/provision-vc <serial>', '/provision-vc <serial> <org>'],
    examples: ['/provision-vc FOC2419NTN2', '/provision-vc FOC2419NTN2 todd'],
    notes: [
      'Aliases: `/vcprovision` (legacy).',
      '`<org>` may be partial name (e.g. "todd", "american") or an org ID.',
    ],
  },
  vcmonitor: {
    title: '/vcmonitor',
    usage: ['/vcmonitor <serial> [start|stop|status] [Full|Limited|FullRotate]'],
    examples: [
      '/vcmonitor FOC2419NTN2',
      '/vcmonitor FOC2419NTN2 Limited',
      '/vcmonitor FOC2419NTN2 stop',
      '/vcmonitor FOC2419NTN2 status',
    ],
    notes: [
      'Default action: `start Full` (~3 min capture including RTP).',
      'PCAPs land in the System Log bundle downloadable from Control Hub diagnostics.',
    ],
  },
  wohistory: {
    title: '/wohistory',
    usage: ['/wohistory <store>'],
    examples: ['/wohistory 782'],
    notes: ['In a store-linked space, the store can be omitted.'],
  },
  wosummary: {
    title: '/wosummary',
    usage: ['/wosummary <work-order-id>'],
    examples: ['/wosummary 12345678'],
  },
  woattachments: {
    title: '/woattachments',
    usage: ['/woattachments <work-order-id>'],
    examples: ['/woattachments 12345678'],
  },
  jirahistory: {
    title: '/jirahistory',
    usage: [
      '/jirahistory <store>',
      '/jirahistory <store> <component>',
      '/jirahistory <store> all',
    ],
    examples: [
      '/jirahistory 782',
      '/jirahistory 782 phone',
      '/jirahistory 782 av,voice,mobility',
    ],
    notes: [
      'Component shortcuts: `av` → Audio Visual, `phone`/`voice` → Communication Services, `mobility` → Mobility.',
    ],
  },
  jiraticket: {
    title: '/jiraticket',
    usage: ['/jiraticket <KEY>'],
    examples: ['/jiraticket SUPPORT-817694'],
  },
  jirapoll: {
    title: '/jirapoll',
    usage: ['/jirapoll', '/jirapoll prime'],
    examples: ['/jirapoll', '/jirapoll prime'],
    notes: [
      'Triggers the same Jira poller that normally runs at the top of every hour. Enriches any unlabeled matching tickets with a phone/av snapshot comment and labels them `bot-enriched`. Tickets the AI classifier decides are out-of-scope get labeled `bot-skipped` so they aren\'t re-classified every hour.',
      'Idempotent — labels + JQL prevent double-processing, so running multiple times in a row is safe.',
      '`/jirapoll prime` labels every matching ticket without enriching or notifying. Use once after adopting the poller to skip enriching the existing backlog. Same as `JIRA_POLLER_PRIME_ON_START=true` at startup.',
      'A summary of enriched tickets goes to the configured `JIRA_POLLER_ROOM_ID`. The invoking chat also gets a compact result line.',
    ],
  },
  webexhost: {
    title: '/webexhost',
    usage: [
      '/webexhost <email>',
      '/webexhost list',
      '/webexhost debug <email>',
    ],
    examples: [
      '/webexhost jdoe@company.com',
      '/webexhost list',
      '/webexhost debug jdoe@company.com',
    ],
    notes: [
      '`/webexhost <email>` checks whether the user holds any Webex Meetings host license on the configured site (default `aeo2go.webex.com`, override via `WEBEX_HOST_SITE_URL`).',
      'If they already have one, the command reports which license. If not — and `WEBEX_HOST_LICENSE_ID` is set in `.env` — it posts a confirmation card to assign that license.',
      '`/webexhost list` is a discovery helper: lists every meeting license on the site with id + remaining seats, marking the one currently configured for auto-assign.',
      '`/webexhost debug <email>` dumps the raw Webex payload for the user (search-endpoint vs `GET /people/{id}` license counts, intersection with site licenses) — use this when Control Hub disagrees with what the bot says.',
      'Requires service-app scopes: `spark-admin:licenses_read` + `spark-admin:people_write`. Scope/role failures surface inline.',
      'There is no Webex API for the "host vs attendee" account flag itself — host status is determined entirely by holding a meeting license on the site (confirmed via Cisco docs + wxc_sdk source).',
      'Audit log: requests + outcomes are emitted under the `webexhost:audit` scope with the requester identity (chat email or `via HTTP API`).',
    ],
  },
  offboarduser: {
    title: '/offboarduser',
    usage: ['/offboarduser <email>'],
    examples: ['/offboarduser jdoe@company.com'],
    notes: [
      'Posts a confirmation card showing the Webex user + MDM CORP devices that will be acted on.',
      'Confirming revokes every Webex OAuth authorization for the user (signs them out of all Webex clients) and enterprise-wipes each listed MDM CORP device — both run in parallel.',
      'Requires the Webex service app to hold `identity:tokens_read` + `identity:tokens_write` scopes and an admin with Full / User / Device Admin role. Scope/role failures surface inline in the success message.',
      '`Hide from search` is **not** part of this command — Cisco only exposes that toggle in Control Hub, not via any Webex API. Set it manually if your offboarding policy requires it.',
      'Every request and outcome is logged under the `offboard:audit` scope with the requesting user (chat email or `via HTTP API`).',
    ],
  },
  bulkavstatuscsv: {
    title: '/bulkavstatuscsv',
    usage: ['/bulkavstatuscsv'],
    notes: ['Long-running. Posts CSV attachment back to the calling room.'],
  },
  bulkavswitchcsv: {
    title: '/bulkavswitchcsv',
    usage: ['/bulkavswitchcsv'],
    notes: [
      'Long-running. Walks every rear switch in Meraki for VLAN 340/145 ports.',
      'Posts CSV attachment back to the calling room.',
    ],
  },
  devicesbymodel: {
    title: '/devicesbymodel',
    usage: ['/devicesbymodel'],
    notes: ['Posts a Meraki by-model count + CSV to the calling room.'],
  },
};

const GROUPS = [
  { title: 'Work orders',     keys: ['wohistory', 'wosummary', 'woattachments'] },
  { title: 'AV & phones',     keys: ['avstatus', 'phonestatus'] },
  { title: 'Jira',            keys: ['jirahistory', 'jiraticket', 'jirapoll'] },
  { title: 'Provisioning',    keys: ['provision-dect', 'provision-vc', 'vcmonitor'] },
  { title: 'Admin & bulk',    keys: ['offboarduser', 'webexhost', 'bulkavstatuscsv', 'bulkavswitchcsv', 'devicesbymodel'] },
];

function renderTopLevelHelp(isGroup) {
  const lines = ['### CollabSupport Bot Help', ''];
  for (const g of GROUPS) {
    lines.push(`**${g.title}**`);
    for (const key of g.keys) {
      const short = SHORT_HELP[key];
      if (!short) continue;
      lines.push(`- \`/${key}\` — ${short}`);
    }
    lines.push('');
  }
  lines.push('Type `/help <command>` for usage and examples (e.g. `/help avstatus`).');
  if (isGroup) {
    lines.push('In a space linked to a store, most commands accept no arguments and pick up the store automatically.');
  }
  lines.push('Web dashboards: `/av-store-dashboard.html`, `/phone-store-dashboard.html`.');
  return lines.join('\n');
}

function renderCommandHelp(name) {
  const detail = LONG_HELP[name];
  if (!detail) return null;
  const lines = [`### ${detail.title}`];
  if (SHORT_HELP[name]) {
    lines.push('', SHORT_HELP[name]);
  }
  if (detail.usage?.length) {
    lines.push('', '**Usage:**');
    for (const u of detail.usage) lines.push(`- \`${u}\``);
  }
  if (detail.examples?.length) {
    lines.push('', '**Examples:**');
    for (const ex of detail.examples) lines.push(`- \`${ex}\``);
  }
  if (detail.notes?.length) {
    lines.push('', '**Notes:**');
    for (const n of detail.notes) lines.push(`- ${n}`);
  }
  return lines.join('\n');
}

export async function handleHelp(bot, trigger) {
  const isGroup = trigger.message?.roomType === 'group';

  // First arg (after `/help`) selects a specific command's detail page.
  // Strip a leading slash so both `/help avstatus` and `/help /avstatus` work.
  const args = trigger.args || [];
  const requested = (args[0] || trigger.query?.command || '')
    .toString()
    .trim()
    .toLowerCase()
    .replace(/^\//, '');

  if (requested) {
    const detail = renderCommandHelp(requested);
    if (detail) {
      await bot.say('markdown', detail);
      return;
    }
    await bot.say(
      'markdown',
      `Unknown command: \`${requested}\`.\n\n${renderTopLevelHelp(isGroup)}`,
    );
    return;
  }

  await bot.say('markdown', renderTopLevelHelp(isGroup));
}