/**
 * Seeds a local development Site: placeholder Pages that look enough like
 * printed menus to design against. Destructive: it wipes the data directory
 * under MENU_ROOT.
 *
 *   npm run seed
 */

import { mkdir, readFile, rm } from 'node:fs/promises';
import path from 'node:path';
import sharp from 'sharp';
import { parseSiteConfig } from '../src/config.ts';
import { createImagePipeline } from '../src/images/pipeline.ts';
import { SetStore } from '../src/storage/sets.ts';
import { SectionStore } from '../src/storage/sections.ts';

const root = path.resolve(process.env['MENU_ROOT'] ?? '.dev');
const configPath = path.resolve(process.env['MENU_SITE_CONFIG'] ?? 'config/hopsngrains.site.json');
const dataDir = path.join(root, 'data');

const config = parseSiteConfig(JSON.parse(await readFile(configPath, 'utf8')));

function menuPage(
  title: string,
  section: string,
  page: number,
  total: number,
  seed: number,
): string {
  const items = Array.from({ length: 7 }, (_, index) => {
    const y = 420 + index * 130;
    const width = 180 + ((seed * 37 + index * 53) % 220);
    return `
      <text x="120" y="${y}" font-family="Georgia, serif" font-size="34" fill="#1b1f22">${
        [
          'Wood-fired pizza',
          'Smash burger',
          'Tenderloin steak',
          'Craft platter',
          'Fish and chips',
          'Risotto',
          'Cheesecake',
        ][index % 7]
      }</text>
      <text x="120" y="${y + 34}" font-family="Georgia, serif" font-size="24" fill="#6b7075">${
        [
          'thin crust, basil',
          'double patty, cheddar',
          'pepper sauce',
          'for two',
          'tartare',
          'wild mushroom',
          'berry coulis',
        ][index % 7]
      }</text>
      <text x="1000" y="${y}" text-anchor="end" font-family="Georgia, serif" font-size="34" fill="#1b1f22">${
        240 + ((seed * 91 + index * 71) % 620)
      }</text>
      <rect x="120" y="${y + 60}" width="${width}" height="2" fill="#cfc9bf" />`;
  }).join('');

  return `<svg xmlns="http://www.w3.org/2000/svg" width="1240" height="1754" viewBox="0 0 1240 1754">
    <rect width="1240" height="1754" fill="#f7f4ee" />
    <rect x="0" y="0" width="1240" height="14" fill="#0088aa" />
    <text x="120" y="180" font-family="Georgia, serif" font-size="72" fill="#1b1f22">${title}</text>
    <text x="120" y="240" font-family="Helvetica, Arial, sans-serif" font-size="30" fill="#6b7075">${section} · page ${page} of ${total}</text>
    <rect x="120" y="290" width="1000" height="1" fill="#b2703b" />
    ${items}
    <text x="120" y="1650" font-family="Helvetica, Arial, sans-serif" font-size="24" fill="#6b7075">Placeholder page for design review</text>
    <text x="1120" y="1650" text-anchor="end" font-family="Helvetica, Arial, sans-serif" font-size="24" fill="#b2703b">${page} / ${total}</text>
  </svg>`;
}

async function pageImage(svg: string): Promise<Buffer> {
  return sharp(Buffer.from(svg)).jpeg({ quality: 82 }).toBuffer();
}

const plan: { section: string; label: string; validUntil: string | null; pages: number }[] = [
  { section: 'food', label: 'Food Menu', validUntil: '2026-12-31', pages: 4 },
  { section: 'bar', label: 'Bar Menu', validUntil: '2026-06-26', pages: 3 },
  { section: 'wine', label: 'Wine List', validUntil: null, pages: 2 },
  { section: 'whats-on', label: "What's On", validUntil: null, pages: 2 },
];

await mkdir(dataDir, { recursive: true });
for (const dir of ['drafts', 'published', 'originals']) {
  await rm(path.join(dataDir, dir), { recursive: true, force: true });
}

// Seeding replaces the menus, not the category list.
const sections = new SectionStore({ dataDir, seed: config.sections });
await sections.load();

const store = new SetStore({
  dataDir,
  pipeline: createImagePipeline(),
  sections,
  maxPagesPerSet: config.limits.maxPagesPerSet,
});

for (const [index, entry] of plan.entries()) {
  const section = sections.bySlug(entry.section);
  if (section === undefined) continue;
  const set = await store.create(entry.section, {
    label: entry.label,
    validUntil: entry.validUntil,
  });
  for (let page = 1; page <= entry.pages; page += 1) {
    const svg = menuPage(entry.label, section.label, page, entry.pages, index + page);
    await store.addPage(set.id, {
      data: await pageImage(svg),
      originalName: `${entry.section}-${String(page).padStart(2, '0')}.jpg`,
    });
  }
  const published = await store.publish(set.id);
  console.log(`published ${published.section}/${published.slug} (${entry.pages} pages)`);
}

// One archived set, so the "Older menus" fold has something to show.
const previous = await store.create('bar', { label: 'Bar Menu, spring', validUntil: '2026-03-31' });
for (let page = 1; page <= 2; page += 1) {
  await store.addPage(previous.id, {
    data: await pageImage(menuPage('Bar Menu, spring', 'Bar', page, 2, page)),
    originalName: `bar-spring-${page}.jpg`,
  });
}
await store.publish(previous.id);

// Publishing the spring set archived the June one; put June back as Current so
// the archive is the older menu rather than the live one.
const june = (await store.list()).find((set) => set.section === 'bar' && set.slug === '2026-06-26');
if (june !== undefined) await store.restore(june.id);

console.log(`seeded ${dataDir}`);