#!/usr/bin/env node
import { startServer, previewOptions, DEFAULT_BOARD } from './serve.mjs';
import { busCaller } from './bus.mjs';
import { views } from '../../bus/src/views.mjs';
import { loadSystem, socketPath, REPO, rolesDir } from '../../cli/src/config.mjs';
import { configDir } from '../../business/src/business.mjs';
import { consoleReads, redactor } from './reads.mjs';
import { statSync } from 'node:fs';
import { isAbsolute } from 'node:path';
import { ID_PATTERN } from '../../business/src/vocabulary.mjs';
const args = process.argv.slice(2);
const usage = 'node packages/webui/src/cli.mjs serve [--port N] [--checkout PATH] [--board http://127.0.0.1:7331] [--business ID] [--public-host NAME --auth-header HEADER --allow-user ID [--send]]';
try {
  if (args.length === 1 && ['--help', '-h'].includes(args[0])) { console.log(usage); process.exit(0); }
  if (args.shift() !== 'serve') throw new Error(usage);
  const options = { board: DEFAULT_BOARD, port: 7330 }, preview = {};
  let sendOn = false;
  while (args.length) {
    const flag = args.shift();
    // Row 76 (#1570): the one flag without a value.
    if (flag === '--send') { sendOn = true; continue; }
    const value = args.shift();
    if (!value) throw new Error(`missing value for ${flag}`);
    if (flag === '--port') {
      if (!/^\d+$/.test(value) || Number(value) > 65535) throw new Error('port must be 0..65535');
      options.port = Number(value);
    } else if (flag === '--board') options.board = value;
    // Row 77 (#1571): the canonical checkout the queue read runs from, when
    // serve runs from a pinned copy; everything else loads from the copy.
    else if (flag === '--checkout') {
      let dir = false;
      try { dir = isAbsolute(value) && statSync(value).isDirectory(); } catch { /* refused below */ }
      if (!dir) throw new Error('--checkout must be the absolute path of a directory');
      options.checkout = value;
    }
    else if (flag === '--business') {
      if (!ID_PATTERN.test(value)) throw new Error('business must be a business id');
      options.business = value;
    }
    // Row 74 (#1568): the preview mode, all three or none, checked before any config is read.
    else if (flag === '--public-host') preview.publicHost = value;
    else if (flag === '--auth-header') preview.authHeader = value;
    else if (flag === '--allow-user') preview.allowUser = value;
    else throw new Error(`unknown option: ${flag}`);
  }
  options.preview = previewOptions(preview);
  if (sendOn && !options.preview) throw new Error('--send needs the preview mode (--public-host, --auth-header and --allow-user)');
  // The bus views (slice 1 S5) need the system config. Without it the
  // board still serves and the bus routes answer not-configured.
  // The Queue, Business and Settings reads (row 54) need no bus; without
  // the system config, Business can't resolve authority and Settings has
  // no notifier. A refusal printed here names no path (redactor).
  // --send without a bus refuses to start rather than serve a composer that can't send.
  let bus = null, send = null, busLine, system = null;
  try {
    system = loadSystem();
    const { dataRoot } = system;
    const call = busCaller({ dataRoot, socket: socketPath(dataRoot), business: options.business ?? null });
    bus = views({ call });
    if (sendOn) send = args => call('message.send', args);
    busLine = `Bus: ${options.business ?? 'the running bus host\'s business'}`;
  } catch (err) {
    const why = redactor({ configDir: configDir() })(err.message);
    if (sendOn) throw new Error(`--send needs the bus configured (${why})`);
    busLine = `Bus: not configured (${why})`;
  }
  const reads = consoleReads({ root: REPO, queueRoot: options.checkout ?? REPO, system, configDir: configDir(), rolesDir: rolesDir(), business: options.business ?? null });
  const server = await startServer({ board: options.board, port: options.port, bus, reads, preview: options.preview, send });
  const previewLine = options.preview ? `\nPreview: https://${options.preview.host}/ through the proxy, signed-in user from ${options.preview.header}, ${send ? 'reads and human messages to roles (--send); one line per send below' : 'read-only'}` : '';
  const queueLine = options.checkout ? '\nQueue: read from the --checkout directory' : '';
  console.log(`Mosaic Console: http://127.0.0.1:${server.address().port}/\nBoard: ${options.board}\n${busLine}${queueLine}${previewLine}\nCtrl-C stops this server.`);
  for (const signal of ['SIGINT', 'SIGTERM']) process.once(signal, () => server.close());
} catch (err) {
  console.error(`refused: ${err.message}`);
  process.exitCode = 2;
}