Files
pbakaus_impeccable/scripts/lib/render-page.js
T
Paul Bakaus 7d7f77d2ba Before/after split demos on skill pages + sidebar reorder
Two changes bundled:

1. Before/after split demos on every skill detail page.
   - loadCommandDemos() in sub-pages-data.js: dynamically imports each
     module in public/js/demos/commands (the same files the homepage
     uses), returning a { skillId: { id, caption, before, after } } map.
     Falls back to a warn-and-continue if a demo file can't be loaded
     so one bad demo doesn't break the whole generator.
   - buildSubPageData becomes async; caller in build-sub-pages.js
     awaits it.
   - Each skill object gets a .demo field (may be null for /shape).
   - renderSkillDemo() produces the .split-comparison markup matching
     the homepage: .split-container with .split-before + .split-after
     + .split-divider, plus Before/After labels and the caption. The
     block sits between the detail header and the editorial wrapper
     so readers see the visual before reading any prose.
   - sub-pages.css ports the core .split-* layout from main.css (the
     .slop-* and .impeccable-* helpers are homepage-specific and not
     copied). Height is 360px to match the docs column.
   - render-page.js grows a lightweight inline split-compare init
     script (60 lines of vanilla JS) that handles drag and the skewed
     clip-path without depending on the homepage's full lerp/ResizeObserver
     module. Runs only on pages that actually have .split-container.

2. Sidebar reorder: Tutorials first, then skills.
   Walk-throughs are the on-ramp; they belong at the top of the sidebar
   where a new visitor will find them. Add <hr class="skills-sidebar-divider">
   between the Tutorials group and the first skill category so the two
   sections read as distinct.

Verified: /skills/polish, /skills/bolder, /skills/critique all render
the demo block. /skills/shape correctly has none. Sidebar on any /skills
or /tutorials page shows Tutorials first, then a thin mist divider,
then Create / Evaluate / Refine / Simplify / Harden / System skill
categories.
2026-04-08 10:54:18 -07:00

191 lines
6.7 KiB
JavaScript

/**
* Page template wrapper for generated sub-pages.
*
* Reads the shared site header partial once and wraps content bodies with
* a minimal HTML scaffold that imports tokens.css + sub-pages.css.
*
* Used by scripts/build-sub-pages.js (wired up in commit 3).
*/
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const ROOT_DIR = path.resolve(__dirname, '..', '..');
const HEADER_PARTIAL = path.join(ROOT_DIR, 'content', 'site', 'partials', 'header.html');
let cachedHeader = null;
/**
* Read the shared site header partial.
* Cached after first read.
*/
export function readHeaderPartial() {
if (cachedHeader === null) {
cachedHeader = fs.readFileSync(HEADER_PARTIAL, 'utf8').trim();
}
return cachedHeader;
}
/**
* Mark a nav item as current by adding aria-current="page" and removing
* the default nav href state. Matches on `data-nav="{activeNav}"`.
*
* @param {string} headerHtml
* @param {string} activeNav - one of: home, skills, anti-patterns, tutorials, gallery, github
* @returns {string}
*/
export function applyActiveNav(headerHtml, activeNav) {
if (!activeNav) return headerHtml;
return headerHtml.replace(
new RegExp(`data-nav="${activeNav}"`, 'g'),
`data-nav="${activeNav}" aria-current="page"`,
);
}
/**
* Wrap body HTML in a full page shell.
*
* @param {object} opts
* @param {string} opts.title - <title> text
* @param {string} opts.description - meta description
* @param {string} opts.bodyHtml - main content HTML (will be placed inside <main>)
* @param {string} [opts.activeNav] - which nav item to mark current
* @param {string} [opts.canonicalPath] - relative URL path for <link rel="canonical">
* @param {string} [opts.extraHead] - raw HTML to inject into <head>
* @param {string} [opts.bodyClass] - optional class on <body>
* @param {number} [opts.assetDepth] - how many `..` to prepend for Bun's HTML loader to resolve on-disk paths. 1 = page is one dir deep under public/ (e.g. public/skills/polish.html). Defaults to 1.
* @returns {string} full HTML document
*/
export function renderPage({
title,
description,
bodyHtml,
activeNav,
canonicalPath,
extraHead = '',
bodyClass = 'sub-page',
assetDepth = 1,
}) {
const header = applyActiveNav(readHeaderPartial(), activeNav);
const safeTitle = escapeHtml(title);
const safeDesc = escapeAttr(description || '');
const canonical = canonicalPath
? `<link rel="canonical" href="https://impeccable.style${canonicalPath}">`
: '';
// Relative prefix for on-disk resolution by Bun's HTML loader.
// Bun rewrites these to hashed absolute URLs at build time, so runtime
// serving works regardless of the request path.
const rel = assetDepth > 0 ? '../'.repeat(assetDepth) : './';
return `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>${safeTitle}</title>
<meta name="description" content="${safeDesc}">
<meta name="theme-color" content="#fafafa">
${canonical}
<link rel="icon" type="image/svg+xml" href="${rel}favicon.svg">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;1,400&family=Instrument+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600&display=swap" rel="stylesheet">
<link rel="stylesheet" href="${rel}css/sub-pages.css">
${extraHead}
</head>
<body class="${bodyClass}">
<a href="#main" class="skip-link">Skip to content</a>
${header}
<main id="main">
${bodyHtml}
</main>
<script>
// Copy buttons on rendered code blocks
document.addEventListener('click', (e) => {
const btn = e.target.closest('[data-copy]');
if (!btn) return;
const text = btn.getAttribute('data-copy');
if (!text) return;
navigator.clipboard.writeText(text).then(() => {
btn.classList.add('is-copied');
setTimeout(() => btn.classList.remove('is-copied'), 1500);
}).catch(() => {});
});
// Lightweight split-compare interaction for before/after demos.
// Drag or hover horizontally over .split-container to sweep the
// divider. No lerp, no ResizeObserver — good enough for docs.
(function initSplitCompare() {
const containers = document.querySelectorAll('.split-container');
if (containers.length === 0) return;
for (const container of containers) {
const splitAfter = container.querySelector('.split-after');
const splitDivider = container.querySelector('.split-divider');
if (!splitAfter || !splitDivider) continue;
const skewAngle = 10 * Math.PI / 180;
const tanAngle = Math.tan(skewAngle);
let skewOffset = 8;
const recalcSkew = () => {
const r = container.getBoundingClientRect();
if (r.width > 0 && r.height > 0) {
skewOffset = 50 * r.height * tanAngle / r.width;
}
};
recalcSkew();
window.addEventListener('resize', recalcSkew, { passive: true });
const update = (pct) => {
const x = Math.max(-skewOffset, Math.min(100 + skewOffset, pct));
splitAfter.style.clipPath = \`polygon(\${x + skewOffset}% 0%, 100% 0%, 100% 100%, \${x - skewOffset}% 100%)\`;
splitDivider.style.left = \`\${x}%\`;
};
update(50);
let tracking = false;
const onMove = (clientX) => {
const rect = container.getBoundingClientRect();
const pct = ((clientX - rect.left) / rect.width) * 100;
update(pct);
};
container.addEventListener('pointerdown', (e) => {
tracking = true;
container.setPointerCapture(e.pointerId);
onMove(e.clientX);
});
container.addEventListener('pointermove', (e) => {
if (!tracking) return;
onMove(e.clientX);
});
const stop = (e) => {
if (!tracking) return;
tracking = false;
try { container.releasePointerCapture(e.pointerId); } catch {}
};
container.addEventListener('pointerup', stop);
container.addEventListener('pointercancel', stop);
container.addEventListener('pointerleave', stop);
}
})();
</script>
</body>
</html>
`;
}
function escapeHtml(str) {
return String(str || '')
.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;')
.replace(/'/g, '&#39;');
}
function escapeAttr(str) {
return String(str || '').replace(/"/g, '&quot;');
}