export.js

// export.js
// Save a finished pre-seed prompt to a file the user can paste into their AI account.
//
// Supports two formats:
//   • .txt — just the prompt text, nothing else. Cleanest for pasting.
//   • .md  — the prompt plus a short header comment (a title + a one-line note on what it
//            is and where to paste it). Nicer for keeping a small library of prompts.
//
// Files are written into an `exports/` folder next to the program so they're easy to find
// and don't clutter the project root. The chosen filename is sanitised to stay safe.

const fs = require('fs');
const path = require('path');
const { ask, askRaw, choose } = require('./prompt');
const ui = require('./ui');

const EXPORT_DIR = path.join(__dirname, 'exports');

// Strip anything risky from a user-supplied filename: keep letters, numbers, dash,
// underscore and dot; collapse the rest to dashes. Prevents path tricks like "../".
function safeName(name) {
  const base = path.basename(name || '').trim();
  const cleaned = base.replace(/[^A-Za-z0-9._-]+/g, '-').replace(/^-+|-+$/g, '');
  return cleaned || 'pre-seed-prompt';
}

// Build the file contents for the chosen format.
function render(text, format, label) {
  if (format === 'md') {
    return '# Pre-seed prompt' + (label ? ' — ' + label : '') + '\n\n' +
      '<!-- Paste the text below into your AI account\'s custom instructions / project ' +
      'settings. Generated with judge-dredd. -->\n\n' + text + '\n';
  }
  return text + '\n'; // .txt — prompt only
}

// Interactive export: ask format + filename, write the file, return the path written.
// `text` is the prompt; `label` is an optional friendly name for the .md header.
async function exportPrompt(text, label) {
  if (!text || !text.trim()) {
    console.log(ui.red('Nothing to export — there is no prompt text.'));
    return null;
  }
  const format = await choose(ui.yellow('Format? [md / txt] '), ['md', 'txt']);
  if (format === null) { console.log(ui.dim('Export cancelled.')); return null; } // EOF / closed stdin
  const def = 'pre-seed-prompt';
  const raw = await askRaw(ui.dim('Filename (without extension) [' + def + ']: '));
  const name = safeName(raw || def);

  fs.mkdirSync(EXPORT_DIR, { recursive: true });
  const out = path.join(EXPORT_DIR, name + '.' + format);

  // Don't silently clobber an existing file — confirm first.
  if (fs.existsSync(out)) {
    const ok = await ask(ui.yellow(name + '.' + format + ' already exists. Overwrite? [y/n] '));
    if (ok !== 'y') { console.log(ui.dim('Export cancelled.')); return null; }
  }

  fs.writeFileSync(out, render(text, format, label));
  console.log(ui.green('Saved ') + out);
  console.log(ui.dim('Open it, copy the text, and paste it into your AI account\'s custom ' +
    'instructions or project settings.'));
  return out;
}

module.exports = { EXPORT_DIR, safeName, render, exportPrompt };