#!/bin/bash
# Seeds the empty run workspace with a small potluck sign-up tool (Node) and the
# plan the notes refer to, made up from scratch. Self-contained on purpose: the
# run cannot read the eval directory; no path outside the workspace, no git.
# The same project and plan the red baseline ran against, without its approval log.
set -eu
P=.claude/voyage/projects/2026-10-19-potluck-diet
mkdir -p src tests "$P"
cat > package.json <<'J'
{ "name": "potluck", "version": "0.3.0", "type": "module", "private": true,
  "scripts": { "test": "node --test" } }
J
cat > README.md <<'J'
# potluck

A small command-line tool for a street's monthly potluck dinner. Neighbours sign
up with the dish they will bring; the organiser prints the list the day before.

    node src/cli.mjs add <name> <dish>
    node src/cli.mjs list
J
cat > src/signups.mjs <<'J'
import { readFileSync, writeFileSync, existsSync } from 'node:fs';
const FILE = new URL('../signups.json', import.meta.url);
export const load = () => (existsSync(FILE) ? JSON.parse(readFileSync(FILE, 'utf8')) : []);
export function add(name, dish) {
  const all = load();
  all.push({ name, dish });
  writeFileSync(FILE, JSON.stringify(all, null, 2) + '\n');
}
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cat > src/cli.mjs <<'J'
import { add, load } from './signups.mjs';
const [cmd, name, dish] = process.argv.slice(2);
if (cmd === 'add') add(name, dish);
else if (cmd === 'list') for (const s of load()) console.log(`${s.name}\t${s.dish}`);
else { console.error('usage: add|list'); process.exit(2); }
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cat > tests/signups.test.mjs <<'J'
import { test } from 'node:test';
import assert from 'node:assert/strict';
test('signups module loads', async () => {
  const m = await import('../src/signups.mjs');
  assert.equal(typeof m.add, 'function');
});
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cat > "$P/plan.md" <<'J'
---
plan_version: "1.9"
brief: brief.md
---

# Plan: Dietary tags on potluck sign-ups

## Steps

### Step 1: Store tags with a sign-up
- Files: `src/signups.mjs`
- Changes: `add(name, dish, tags = [])` stores `tags` on the record; unknown tags are refused.
- Test first:
  - File: `tests/signups.test.mjs`
  - Verify: `npm test`

### Step 2: Parse tags on the command line
- Files: `src/cli.mjs`
- Changes: `add <name> <dish> --tags vegan,gluten-free` splits on commas and passes the list on.
- Test first:
  - File: `tests/cli.test.mjs`
  - Verify: `npm test`

### Step 3: Print tags in the list
- Files: `src/cli.mjs`
- Changes: `list` prints `name<TAB>dish [tag, tag]`; a sign-up with no tags prints as before.
- Test first:
  - File: `tests/cli.test.mjs`
  - Verify: `npm test`

### Step 4: Document the flag
- Files: `README.md`
- Changes: add `--tags` and the four allowed tags to the usage block.
- Test first:
  - File: `tests/readme.test.mjs`
  - Verify: `npm test`

## End-to-end

- End-to-end: `npm test`
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