shadowfacts.net/lib/util.ts

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import { promises as fs } from "fs";
import path from "path";
import hljs from "highlight.js";
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import ejs from "ejs";
import formatDate from "date-fns/format";
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export async function write(filePath: string, data: any) {
const dest = path.join("out", filePath);
await fs.mkdir(path.dirname(dest), {
recursive: true
});
await fs.writeFile(dest, data);
}
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export function getReadingTime(text: string): number {
const avgWPM = 225;
const words = text.split(/\s+/).length;
return Math.max(1, Math.round(words / avgWPM))
}
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export function highlight(source: string, language?: string): string {
const res = language ? hljs.highlight(language, source) : hljs.highlightAuto(source);
const highlighted = res.value;
return `<pre class="hljs"><code>${highlighted}</code></pre>`;
}
interface Chunk<T> {
chunk: T[];
index: number;
}
export function chunk<T>(array: T[], size: number): Chunk<T>[] {
const chunks: Chunk<T>[] = [];
for (let i = 0; i < array.length; i += size) {
chunks.push({
chunk: array.slice(i, i + size),
index: i / size
});
}
return chunks;
}
export function fancyLink(text: string, href: string, meta?: string): string {
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return `<a href="${href}" class="fancy-link" ${meta || ""}><span aria-hidden="true">{</span>${text}<span aria-hidden="true">}</span></a>`;
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}
export function render(template: string, data: any, filename?: string): string {
data.fancyLink = fancyLink;
data.formatDate = formatDate;
return ejs.render(template, data, {
filename
});
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}