#!/bin/bash
# Seeds the empty run workspace with a small seed-library app (Node, node --test),
# made up from scratch. Self-contained on purpose: the run cannot read the eval
# directory, and the fixture is written inline, with no path outside the
# workspace and no git. The same project the red baseline ran against.
set -eu
mkdir -p src tests data
cat > package.json <<'J'
{ "name": "seedswap", "version": "0.4.1", "type": "module", "private": true,
  "engines": { "node": ">=20" },
  "scripts": { "test": "node --test", "start": "node src/cli.mjs" } }
J
cat > README.md <<'J'
# seedswap

A seed library for a garden club. Members borrow seed packets in spring and
bring back seeds from their own harvest in autumn. One volunteer runs this
command-line tool on the club laptop.

    node src/cli.mjs borrow <member> <variety>
    node src/cli.mjs return <member> <variety>
    node src/cli.mjs list

Data lives in `data/*.json`. Messages to members go to `data/outbox.txt`,
which the volunteer prints and hands out at the monthly meeting.
J
cat > src/store.mjs <<'J'
import { readFileSync, writeFileSync } from 'node:fs';
const path = (name) => new URL(`../data/${name}.json`, import.meta.url);
export const load = (name) => JSON.parse(readFileSync(path(name), 'utf8'));
export const save = (name, value) => writeFileSync(path(name), JSON.stringify(value, null, 2) + '\n');
J
cat > src/members.mjs <<'J'
import { load } from './store.mjs';
// A member: { id, name, joined }. No email or phone is stored.
export const members = () => load('members');
export const byId = (id) => members().find((m) => m.id === id);
J
cat > src/loans.mjs <<'J'
import { load, save } from './store.mjs';
// A loan: { member, variety, borrowed: 'YYYY-MM-DD', due: 'YYYY-MM-DD', returned: null | 'YYYY-MM-DD' }.
// `due` is set to 15 October of the borrowing year (end of harvest).
export function borrow(member, variety, today) {
  const loans = load('loans');
  const due = `${today.slice(0, 4)}-10-15`;
  loans.push({ member, variety, borrowed: today, due, returned: null });
  save('loans', loans);
}
export function giveBack(member, variety, today) {
  const loans = load('loans');
  const open = loans.find((l) => l.member === member && l.variety === variety && !l.returned);
  if (!open) throw new Error(`no open loan of ${variety} for ${member}`);
  open.returned = today;
  save('loans', loans);
}
export const openLoans = () => load('loans').filter((l) => !l.returned);
J
cat > src/notify.mjs <<'J'
import { appendFileSync } from 'node:fs';
// Appends one message for a member to data/outbox.txt (printed at meetings).
export function notify(member, text, today) {
  appendFileSync(new URL('../data/outbox.txt', import.meta.url), `${today}\t${member.name}\t${text}\n`);
}
J
cat > src/cli.mjs <<'J'
import { borrow, giveBack, openLoans } from './loans.mjs';
const [cmd, member, variety] = process.argv.slice(2);
const today = new Date().toISOString().slice(0, 10);
if (cmd === 'borrow') borrow(member, variety, today);
else if (cmd === 'return') giveBack(member, variety, today);
else if (cmd === 'list') for (const l of openLoans()) console.log(`${l.member}\t${l.variety}\tdue ${l.due}`);
else { console.error('usage: borrow|return|list'); process.exit(2); }
J
cat > tests/loans.test.mjs <<'J'
import { test } from 'node:test';
import assert from 'node:assert/strict';
test('loans module loads', async () => {
  const m = await import('../src/loans.mjs');
  assert.equal(typeof m.borrow, 'function');
});
J
cat > data/members.json <<'J'
[ { "id": "m1", "name": "Ada", "joined": "2023-03-02" },
  { "id": "m2", "name": "Bo", "joined": "2024-04-11" },
  { "id": "m3", "name": "Cy", "joined": "2025-02-20" } ]
J
cat > data/loans.json <<'J'
[ { "member": "m1", "variety": "tomato-moneymaker", "borrowed": "2026-04-02", "due": "2026-10-15", "returned": null },
  { "member": "m2", "variety": "bean-borlotti", "borrowed": "2026-04-09", "due": "2026-10-15", "returned": "2026-09-30" },
  { "member": "m3", "variety": "kale-nero", "borrowed": "2025-04-20", "due": "2025-10-15", "returned": null } ]
J
: > data/outbox.txt