// services/voiceDiag/checks/mppDeskPhoneRelay.js
//
// Summarises MPP desk-phone relay probe results for /voicediag.

import { collectIssues } from '../../renderers/mppPhoneFormatters.js';
import { isLineRegistered } from '../../renderers/mppPhoneFormatters.js';

export const MPP_DESK_PHONE_RELAY_STANDARDS = Object.freeze({
  registered: true,
  noIssues: true,
});

export const mppDeskPhoneRelayCheck = {
  id: 'mppDeskPhoneRelay',
  label: 'MPP Desk Phone (relay)',
  requires: ['phoneStatus'],
  scope: null,
  standards: MPP_DESK_PHONE_RELAY_STANDARDS,

  async run(ctx) {
    if (!process.env.DECT_RELAY_AGENT_TOKEN) {
      return {
        status: 'skipped',
        message: 'Relay not configured (`DECT_RELAY_AGENT_TOKEN` unset) — run `/phonediag` when relay is available.',
        details: null,
        remediation: null,
      };
    }

    const results = ctx.mppRelayResults;
    if (!Array.isArray(results)) {
      return {
        status: 'skipped',
        message: 'MPP relay probe was not run (no desk phones discovered on 10.x).',
        details: null,
        remediation: null,
      };
    }

    if (results.length === 0) {
      return {
        status: 'skipped',
        message: 'No MPP desk phones discovered on 10.x for relay probe.',
        details: null,
        remediation: null,
      };
    }

    const phones = [];
    let errorCount = 0;

    for (const r of results) {
      const label = r.phone?.name || r.phone?.product || r.phone?.mac || '?';
      const ip = r.phone?.ip || '?';

      if (!r.ok) {
        errorCount += 1;
        phones.push({
          label,
          ip,
          ok: false,
          error: r.error?.message || 'probe failed',
        });
        continue;
      }

      const parsed = r.mpp?.parsed || r.parsed || {};
      const line1 = parsed.lines?.find((l) => l.index === 1) || parsed.lines?.[0];
      const issues = collectIssues(r.mpp || {}, parsed);
      const registered = line1 ? isLineRegistered(line1) : null;

      if (!registered || issues.length > 0) errorCount += 1;

      phones.push({
        label,
        ip,
        ok: true,
        registered: line1?.registrationState || null,
        issues,
      });
    }

    const summary =
      `${results.length} MPP phone(s) probed via relay. ` +
      `${errorCount === 0 ? 'All registered with no issues.' : `${errorCount} phone(s) need attention.`}`;

    const details = { phones, probed: results.length, attentionCount: errorCount };

    if (errorCount > 0) {
      return {
        status: 'error',
        message: summary + ' Run `/phonediag` for full section layout.',
        details,
        remediation: null,
      };
    }

    return {
      status: 'ok',
      message: summary,
      details,
      remediation: null,
    };
  },
};