90 lines
4.1 KiB
JavaScript
90 lines
4.1 KiB
JavaScript
// Render the corporate identity band used by the delivery package.
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//
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// The band is the same assets/header.html the PDF is printed with, captured as
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// an image so its ribbon geometry survives into Word, where it is placed in a
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// real page header instead of being reconstructed in the body.
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import fs from 'node:fs/promises';
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import path from 'node:path';
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import { fileURLToPath } from 'node:url';
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import { chromium } from 'playwright';
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import { PAGE_MM, headerValues, isLandscapePdf } from './letterhead.mjs';
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const here = path.dirname(fileURLToPath(import.meta.url));
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const root = path.resolve(here, '../..');
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const assets = path.join(here, 'assets');
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export const BAND_MM = { height: 27 };
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const SCALE = 3; // the band is drawn at 3x so it stays crisp in print
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const applyTemplate = (template, values) => template.replace(/{{(\w+)}}/g, (_, key) => values[key] ?? '');
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const slug = (title) => title.replace(/[^\w-]+/g, '-').replace(/^-|-$/g, '').toLowerCase() || 'band';
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// Work products sit in the process folders; top-level files in sdlc/ are notes.
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async function markdownFiles(directory, depth = 0) {
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const entries = await fs.readdir(directory, { withFileTypes: true });
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const results = await Promise.all(entries.map(async (entry) => {
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const target = path.join(directory, entry.name);
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if (entry.isDirectory()) return markdownFiles(target, depth + 1);
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return depth > 0 && entry.isFile() && entry.name.endsWith('.md') ? [target] : [];
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}));
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return results.flat();
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}
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async function main() {
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// PDF_DIRECTORY holds the rendered PDFs: each band matches its PDF's orientation.
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const [sourceRoot, outputRoot, pdfRoot] = process.argv.slice(2);
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if (!sourceRoot || !outputRoot || !pdfRoot) throw new Error('Usage: render-ci-band.mjs SOURCE_DIRECTORY OUTPUT_DIRECTORY PDF_DIRECTORY');
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const [template, logo] = await Promise.all([
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fs.readFile(path.join(assets, 'header.html'), 'utf8'),
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fs.readFile(path.join(root, 'app/assets/images/logo.svg'))
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]);
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const values = {
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logoPath: `data:image/svg+xml;base64,${logo.toString('base64')}`,
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ciBlue: '#0797d5',
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ciGrey: '#8e8e8e' // ribbon grey measured from the audited reference documents
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};
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await fs.mkdir(outputRoot, { recursive: true });
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const sources = (await markdownFiles(sourceRoot)).sort();
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const bands = {};
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const rendered = new Map();
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const browser = await chromium.launch({ headless: true });
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try {
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const page = await browser.newPage({ deviceScaleFactor: SCALE });
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for (const source of sources) {
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const markdown = await fs.readFile(source, 'utf8');
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const title = markdown.match(/^#\s+(.+)$/m)?.[1]?.trim() ?? 'BRN WMS';
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const footer = markdown.match(/^<!--\s*footer:\s*(.+?)\s*-->\s*$/m)?.[1] ?? '';
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const relative = path.relative(sourceRoot, source);
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const pdf = path.join(pdfRoot, relative.replace(/\.md$/, '.pdf'));
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const landscape = isLandscapePdf(await fs.readFile(pdf));
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const key = `${title}|${landscape ? 'landscape' : 'portrait'}`;
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const widthMm = landscape ? PAGE_MM.landscape : PAGE_MM.portrait;
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if (!rendered.has(key)) {
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const file = path.join(outputRoot, `${slug(title)}-${landscape ? 'landscape' : 'portrait'}.png`);
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await page.setContent(
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'<!doctype html><meta charset="utf-8"><body style="margin:0;background:#fff">' +
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`<div id="band" style="width:${widthMm}mm;height:${BAND_MM.height}mm;overflow:hidden;position:relative">` +
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`${applyTemplate(template, { ...values, ...headerValues(title, landscape) })}</div></body>`,
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{ waitUntil: 'networkidle' }
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);
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await page.locator('#band').screenshot({ type: 'png', path: file });
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rendered.set(key, file);
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}
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bands[relative] = { title, footer, band: rendered.get(key), widthMm };
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}
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} finally {
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await browser.close();
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}
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await fs.writeFile(path.join(outputRoot, 'bands.json'), `${JSON.stringify(bands, null, 2)}\n`);
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console.log(`${rendered.size} band${rendered.size === 1 ? '' : 's'} rendered for ${sources.length} documents`);
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}
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main().catch((error) => { console.error(error); process.exit(1); });
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