// ── Remote Diagnostics Client ─────────────────────────────────
// Delegates to @bytelyst/diagnostics-client shared package.
// Polls platform-service for active debug sessions targeting this install.
// Privacy: only captures console logs + JS errors when a session is active.

import { DiagnosticsClient } from '@bytelyst/diagnostics-client';
import { getAuthClient, PRODUCT_ID, getBaseUrl } from './auth-api';

function getOrCreateInstallId(): string {
  const key = `${PRODUCT_ID}_diag_install_id`;
  let id = localStorage.getItem(key);
  if (!id) {
    id =
      typeof crypto?.randomUUID === 'function'
        ? crypto.randomUUID()
        : Math.random().toString(36).slice(2) + Date.now().toString(36);
    localStorage.setItem(key, id);
  }
  return id;
}

export function initDiagnostics(): void {
  if (typeof window === 'undefined') return;
  DiagnosticsClient.getInstance({
    productId: PRODUCT_ID,
    anonymousInstallId: getOrCreateInstallId(),
    platform: 'web',
    channel: 'pwa',
    osFamily: 'unknown',
    appVersion: process.env.NEXT_PUBLIC_APP_VERSION ?? '0.1.0',
    buildNumber: process.env.NEXT_PUBLIC_BUILD_NUMBER ?? '1',
    releaseChannel: process.env.NEXT_PUBLIC_RELEASE_CHANNEL ?? 'beta',
    serverUrl: getBaseUrl(),
    getAuthToken: () => {
      const token = getAuthClient().getAccessToken();
      if (!token) throw new Error('unauthenticated');
      return token;
    },
    captureConsole: true,
    captureErrors: true,
    captureNetwork: false,
    pollIntervalMs: 30_000,
  });
  void DiagnosticsClient.getInstance().start();
}

export function stopDiagnostics(): void {
  try {
    DiagnosticsClient.getInstance().stop();
  } catch {
    // not initialized
  }
}