// src/commands/dectStatus.js
//
// /dectstatus <store>  — full DECT basestation diagnostics via the
//                        on-prem relay agent. Complements the compact
//                        follow-up that /phonestatus already posts:
//                        this is the full status.xml dump (device,
//                        firmware, reboot log, network, RTP, security,
//                        emergency numbers) plus chat-only action cards
//                        for reboot / force-reboot / factory-reset.
//
// Chat surface
//   1. Markdown full dump for every discovered 10.x base.
//   2. One adaptive card per reachable base with Reboot / Force Reboot /
//      Factory Reset buttons. Each button opens a confirm card; confirm
//      runs execAction() through the relay and audits the outcome.
//
// HTTP surface
//   Same dump via ?storeNum=<n>. No action cards (mutating UI is chat-
//   only). Non-mutating for registry purposes — card submits never hit
//   the HTTP path.
//
// Relay dependency
//   Requires DECT_RELAY_AGENT_TOKEN + a live dect-relay-agent. When the
//   relay is offline we still run discovery and report the offline
//   state explicitly rather than failing the whole command.

import { randomUUID } from 'node:crypto';
import { collectPhoneStatus } from '../services/phoneService.js';
import { discoverDectBases } from '../services/dectDiscovery.js';
import { collectAll, execAction } from '../services/dectCollectorService.js';
import { getDectRelayHub } from '../services/dectRelayHub.js';
import { renderDectStatusMarkdown } from '../services/renderers/dectStatusRenderer.js';
import { pendingDectActions } from '../utils/pendingDectActions.js';
import { extractRequester, describeRequester } from '../utils/requester.js';
import { logger } from '../utils/logger.js';

/** Mutating actions the chat cards expose. Must match agent capabilities. */
export const DECT_STATUS_ACTIONS = Object.freeze({
  reboot: {
    id: 'reboot',
    label: 'Reboot',
    emoji: '🔄',
    severity: 'warn',
    blurb: 'Graceful reboot — waits for active calls to end when possible.',
  },
  'force-reboot': {
    id: 'force-reboot',
    label: 'Force Reboot',
    emoji: '⚡',
    severity: 'warn',
    blurb: 'Forced reboot — kills active calls within ~1 minute.',
  },
  'factory-reset': {
    id: 'factory-reset',
    label: 'Factory Reset',
    emoji: '💣',
    severity: 'danger',
    blurb:
      'Wipes the base to factory defaults. It must be re-onboarded from Control Hub afterward.',
  },
});

const REQUEST_ACTION = 'dect_status_request';
const CONFIRM_ACTION = 'dect_status_confirm';
const CANCEL_ACTION = 'dect_status_cancel';

/** Action ids handled by index.js attachmentAction dispatch. */
export const DECT_STATUS_CARD_ACTIONS = new Set([
  REQUEST_ACTION,
  CONFIRM_ACTION,
  CANCEL_ACTION,
]);

export async function handleDectStatus(bot, trigger) {
  const query = trigger.query || {};
  const args = trigger.args || [];
  const storeNum = (args[0]?.trim() || query.storeNum || query.store || query.s || '').trim();

  if (!storeNum || !/^\d{2,4}$/.test(storeNum)) {
    await bot.say(
      'markdown',
      'Please provide a 2–4 digit store number.\n' +
      'Example: `/dectstatus 782`\n' +
      'HTTP: `?storeNum=782`',
    );
    return;
  }

  // Optional single-base filter: second arg as IP or MAC.
  const filterRaw = (args[1] || query.base || query.ip || query.mac || '').trim();

  logger('dect:status', `Collecting DECT status for store ${storeNum}` +
    (filterRaw ? ` (filter=${filterRaw})` : ''));

  // Relay status snapshot for the header — cheap, no I/O.
  let relayStatus = null;
  try {
    if (process.env.DECT_RELAY_AGENT_TOKEN) {
      relayStatus = getDectRelayHub().status();
    }
  } catch (err) {
    logger('dect:status', `Relay status unavailable: ${err.message}`, 'warn');
  }

  if (!process.env.DECT_RELAY_AGENT_TOKEN) {
    await bot.say(
      'markdown',
      '⚠️ DECT relay is not configured on this bot (`DECT_RELAY_AGENT_TOKEN` unset). ' +
      'Set the token and run dect-relay-agent in the data center to enable `/dectstatus`.',
    );
    return;
  }

  let phoneData;
  try {
    phoneData = await collectPhoneStatus(storeNum);
  } catch (err) {
    logger('dect:status', `collectPhoneStatus failed for store ${storeNum}: ${err.message}`, 'error');
    await bot.say('markdown', `❌ Failed to look up store ${storeNum}: ${err.message}`);
    return;
  }

  const { bases, warnings: discoveryWarnings } = discoverDectBases(phoneData || {});
  let targets = bases;
  if (filterRaw) {
    targets = filterBases(bases, filterRaw);
    if (targets.length === 0) {
      await bot.say(
        'markdown',
        `No discovered base matched \`${filterRaw}\` for store ${storeNum}.\n` +
        (bases.length
          ? `Known bases: ${bases.map((b) => `${b.name} (${b.ip})`).join(', ')}`
          : '_No bases discovered at all._'),
      );
      return;
    }
  }

  await bot.say(
    'markdown',
    targets.length
      ? `⏳ Collecting status from **${targets.length}** DECT base(s) at store ${storeNum}…`
      : `Looking up DECT bases for store ${storeNum}…`,
  );

  const results = await collectAll(targets);
  const md = renderDectStatusMarkdown(results, {
    storeNum,
    relay: relayStatus,
    discoveryWarnings,
  });
  await bot.say('markdown', md || 'No data available.');

  // Action cards are chat-only (need adaptive-card UX + room).
  if (trigger.person) {
    const okBases = results.filter((r) => r.ok && r.base?.ip);
    for (const r of okBases) {
      try {
        const card = buildBaseActionCard({ storeNum, base: r.base });
        await bot.say({
          markdown: `Actions for **${r.base.name || r.base.ip}**:`,
          attachments: [{
            contentType: 'application/vnd.microsoft.card.adaptive',
            content: card,
          }],
        });
      } catch (err) {
        logger(
          'dect:status',
          `Failed to post action card for ${r.base?.ip}: ${err.message}`,
          'warn',
        );
      }
    }
  }
}

/**
 * Adaptive-card submit handler. Dispatched from index.js for
 * dect_status_* action ids. Handles request → confirm → execute.
 */
export async function handleDectStatusAction(bot, trigger) {
  const action = trigger.attachmentAction;
  const inputs = action?.inputs || {};
  const actionType = inputs.action;
  const roomId = trigger.roomId || action?.roomId;
  const requester = extractRequester(trigger);

  if (actionType === REQUEST_ACTION) {
    const dectAction = inputs.dectAction;
    const meta = DECT_STATUS_ACTIONS[dectAction];
    if (!meta) {
      logger('dect:status:action', `Unknown dectAction "${dectAction}" — ignoring`, 'warn');
      return;
    }
    const storeNum = String(inputs.storeNum || '').trim();
    const baseIp = String(inputs.baseIp || '').trim();
    const baseMac = String(inputs.baseMac || '').trim();
    const baseName = String(inputs.baseName || baseIp || 'base').trim();
    if (!storeNum || !baseIp) {
      logger('dect:status:action', 'request missing storeNum/baseIp — ignoring', 'warn');
      return;
    }

    const cardId = randomUUID();
    pendingDectActions.set(cardId, {
      storeNum,
      baseIp,
      baseMac,
      baseName,
      dectAction,
      requester,
    });

    const confirmCard = buildConfirmCard({
      cardId,
      storeNum,
      baseName,
      baseIp,
      meta,
    });

    await bot.say({
      markdown:
        `${meta.emoji} Confirm **${meta.label}** on **${baseName}** (${baseIp}) at store ${storeNum}?`,
      attachments: [{
        contentType: 'application/vnd.microsoft.card.adaptive',
        content: confirmCard,
      }],
    });
    logger(
      'dect:audit',
      `REQUEST ${dectAction} store=${storeNum} base=${baseIp} by ${describeRequester(requester)} card=${cardId}`,
    );
    return;
  }

  if (actionType === CONFIRM_ACTION || actionType === CANCEL_ACTION) {
    const { cardId } = inputs;
    if (!cardId) {
      logger('dect:status:action', `Missing cardId on ${actionType} — ignoring`);
      return;
    }
    if (!pendingDectActions.has(cardId)) {
      logger('dect:status:action', `Card ${cardId} is expired or unknown`);
      await bot.say('markdown', '⚠️ That action card has expired. Re-run `/dectstatus` and try again.');
      return;
    }

    const data = pendingDectActions.get(cardId);
    pendingDectActions.delete(cardId); // one-shot

    if (actionType === CANCEL_ACTION) {
      await bot.say(
        'markdown',
        `❌ **${DECT_STATUS_ACTIONS[data.dectAction]?.label || data.dectAction}** cancelled ` +
        `for **${data.baseName}** (${data.baseIp}). No changes made.`,
      );
      logger(
        'dect:audit',
        `CANCELLED ${data.dectAction} store=${data.storeNum} base=${data.baseIp} by ${describeRequester(requester)}`,
      );
      return;
    }

    // CONFIRM
    const meta = DECT_STATUS_ACTIONS[data.dectAction] || {
      id: data.dectAction,
      label: data.dectAction,
      emoji: '🔧',
    };
    logger(
      'dect:audit',
      `CONFIRMED ${data.dectAction} store=${data.storeNum} base=${data.baseIp} by ${describeRequester(requester)}`,
    );
    await bot.say(
      'markdown',
      `${meta.emoji} Running **${meta.label}** on **${data.baseName}** (${data.baseIp})…`,
    );

    const result = await execAction(
      { ip: data.baseIp, mac: data.baseMac, name: data.baseName },
      data.dectAction,
    );

    if (result.ok) {
      await bot.say(
        'markdown',
        `✅ **${meta.label}** issued on **${data.baseName}** (${data.baseIp})` +
        (result.elapsedMs != null ? ` in ${result.elapsedMs}ms` : '') +
        `.\n_Re-run \`/dectstatus ${data.storeNum}\` in a minute to confirm the base is back._`,
      );
      logger(
        'dect:audit',
        `COMPLETED ${data.dectAction} store=${data.storeNum} base=${data.baseIp} elapsed=${result.elapsedMs}ms`,
      );
    } else {
      await bot.say(
        'markdown',
        `❌ **${meta.label}** failed on **${data.baseName}** (${data.baseIp}): ` +
        `${result.error?.message || 'unknown error'}` +
        (result.error?.hint ? `\n_${result.error.hint}_` : ''),
      );
      logger(
        'dect:audit',
        `FAILED ${data.dectAction} store=${data.storeNum} base=${data.baseIp}: ${result.error?.message}`,
        'error',
      );
    }
    return;
  }

  logger('dect:status:action', `Ignoring unhandled action type ${actionType}`, 'debug');
  void roomId;
}

// ─── Cards ──────────────────────────────────────────────────────────

function buildBaseActionCard({ storeNum, base }) {
  const actions = Object.values(DECT_STATUS_ACTIONS).map((meta) => ({
    type: 'Action.Submit',
    title: `${meta.emoji} ${meta.label}`,
    data: {
      action: REQUEST_ACTION,
      dectAction: meta.id,
      storeNum: String(storeNum),
      baseIp: base.ip,
      baseMac: base.mac || '',
      baseName: base.name || base.ip,
    },
  }));

  return {
    type: 'AdaptiveCard',
    $schema: 'http://adaptivecards.io/schemas/adaptive-card.json',
    version: '1.3',
    body: [
      {
        type: 'TextBlock',
        size: 'Medium',
        weight: 'Bolder',
        text: `${base.name || 'Basestation'} (${base.ip})`,
        wrap: true,
      },
      {
        type: 'TextBlock',
        text: `MAC \`${base.mac || '?'}\` · store ${storeNum}. Pick an action — you'll confirm before anything runs.`,
        wrap: true,
        spacing: 'Small',
        isSubtle: true,
      },
    ],
    actions,
  };
}

function buildConfirmCard({ cardId, storeNum, baseName, baseIp, meta }) {
  const dangerNote = meta.severity === 'danger'
    ? ' **This is destructive and cannot be undone.**'
    : '';
  return {
    type: 'AdaptiveCard',
    $schema: 'http://adaptivecards.io/schemas/adaptive-card.json',
    version: '1.3',
    body: [
      {
        type: 'TextBlock',
        size: 'Medium',
        weight: 'Bolder',
        text: `${meta.emoji} Confirm ${meta.label}?`,
        wrap: true,
      },
      {
        type: 'TextBlock',
        text: `**${baseName}** (${baseIp}) at store ${storeNum}.${dangerNote}`,
        wrap: true,
        spacing: 'Small',
      },
      {
        type: 'TextBlock',
        text: meta.blurb,
        wrap: true,
        spacing: 'Small',
        isSubtle: true,
      },
    ],
    actions: [
      {
        type: 'Action.Submit',
        title: `✅ ${meta.label}`,
        style: meta.severity === 'danger' ? 'destructive' : 'positive',
        data: { action: CONFIRM_ACTION, cardId },
      },
      {
        type: 'Action.Submit',
        title: '❌ Cancel',
        data: { action: CANCEL_ACTION, cardId },
      },
    ],
  };
}

// ─── Helpers ────────────────────────────────────────────────────────

function filterBases(bases, raw) {
  const needle = String(raw).trim().toLowerCase();
  const needleMac = needle.replace(/[^0-9a-f]/g, '');
  return bases.filter((b) => {
    if (b.ip && b.ip.toLowerCase() === needle) return true;
    if (b.mac) {
      const macHex = b.mac.replace(/[^0-9a-fA-F]/g, '').toLowerCase();
      if (macHex === needleMac && needleMac.length === 12) return true;
      if (b.mac.toLowerCase() === needle) return true;
    }
    if (b.name && b.name.toLowerCase().includes(needle)) return true;
    return false;
  });
}