/**
 * Tries roll ids one at a time, waiting for you to say what came out.
 *
 *   docker compose exec -it visitor-signin node scripts/print-probe.mjs
 *
 * Note the -it: this asks questions, so the container needs a terminal attached.
 *
 * Start with printer-status.mjs — if the printer answers, it tells you the right
 * id outright and this is unnecessary. Use this when the printer will not report
 * its status, or when it does and the job is still refused.
 */
import fs from 'node:fs';
import readline from 'node:readline/promises';
import { execFileSync } from 'node:child_process';
import db from '../src/db.js';
import config from '../src/config.js';
import * as printer from '../src/printer.js';

// Ordered by how likely each is on a 62 mm machine, cheapest guesses first.
const CANDIDATES = [
  ['62', '62 mm continuous, black only'],
  ['62x100', '62 x 100 mm die-cut'],
  ['62red', '62 mm continuous, black and red (DK-22251)'],
  ['62x29', '62 x 29 mm die-cut'],
  ['29', '29 mm continuous'],
  ['29x90', '29 x 90 mm die-cut'],
  ['38', '38 mm continuous'],
  ['50', '50 mm continuous'],
  ['54', '54 mm continuous'],
];

const site = db
  .prepare('SELECT * FROM sites WHERE printer_host IS NOT NULL ORDER BY id LIMIT 1')
  .get();

if (!site) {
  console.error('No site has a printer address set.');
  process.exit(1);
}

const target = `tcp://${site.printer_host}:${site.printer_port || 9100}`;
const rl = readline.createInterface({ input: process.stdin, output: process.stdout });

console.log(`\n  Printer: ${site.printer_model || 'QL-820NWB'} at ${target}`);
console.log('  One label will be sent per attempt. After each, say whether anything came out.');
console.log('  Press Ctrl+C at any point to stop.\n');

const results = [];

for (const [label, description] of CANDIDATES) {
  const answer = (await rl.question(`  Try "${label}" (${description})? [Y/n/q] `)).trim().toLowerCase();
  if (answer === 'q') break;
  if (answer === 'n') {
    results.push([label, 'skipped']);
    continue;
  }

  const png = await printer.renderBadgePng(printer.sampleVisit(site), { ...site, printer_label: label });
  const file = '/tmp/probe.png';
  fs.writeFileSync(file, png);

  let sent = true;
  let detail = '';
  try {
    execFileSync(
      config.printing.command,
      [
        '--backend', 'network',
        '--model', site.printer_model || 'QL-820NWB',
        '--printer', target,
        'print', '--label', label, ...(label === '62red' ? ['--red'] : []), file,
      ],
      { stdio: ['ignore', 'pipe', 'pipe'], timeout: config.printing.timeoutMs }
    );
  } catch (err) {
    sent = false;
    detail = `${err.stdout || ''}${err.stderr || ''}`.trim().split('\n').pop() || err.message;
  }

  if (!sent) {
    console.log(`     could not send: ${detail}\n`);
    results.push([label, `send failed: ${detail}`]);
    continue;
  }

  const came = (await rl.question('     Did a label print? [y/N] ')).trim().toLowerCase();
  if (came === 'y') {
    results.push([label, 'PRINTED']);
    console.log(`\n  That is the one. Set "Roll loaded in the printer" so it sends ${label}.\n`);
    break;
  }
  results.push([label, 'nothing came out']);
  console.log('     Clear the error on the printer (open and close the cover) before the next try.\n');
}

rl.close();

console.log('  Summary');
for (const [label, outcome] of results) console.log(`    ${label.padEnd(8)} ${outcome}`);
console.log('');