88 lines
2.3 KiB
TypeScript
88 lines
2.3 KiB
TypeScript
import { promises as fs } from "fs";
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import path from "path";
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import hljs from "highlight.js";
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import ejs from "ejs";
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import formatDate from "date-fns/format";
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import { Metadata } from "./metadata";
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export async function write(filePath: string, data: any) {
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const dest = path.join("out", filePath);
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await fs.mkdir(path.dirname(dest), {
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recursive: true
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});
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await fs.writeFile(dest, data);
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}
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export function getWordCount(text: string): number {
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return text.split(/\s+/).length;
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}
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export function getReadingTime(words: number): number {
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const avgWPM = 225;
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return Math.max(1, Math.round(words / avgWPM))
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}
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export function highlight(source: string, language?: string): string {
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const res = language ? hljs.highlight(language, source) : hljs.highlightAuto(source);
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const highlighted = res.value;
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return `<pre class="hljs"><code>${highlighted}</code></pre>`;
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}
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interface Chunk<T> {
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chunk: T[];
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index: number;
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}
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export function chunk<T>(array: T[], size: number): Chunk<T>[] {
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const chunks: Chunk<T>[] = [];
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for (let i = 0; i < array.length; i += size) {
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chunks.push({
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chunk: array.slice(i, i + size),
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index: i / size
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});
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}
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return chunks;
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}
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export function fancyLink(text: string, href: string, meta?: string): string {
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return `<a href="${href}" class="fancy-link" ${meta || ""}><span aria-hidden="true">{</span>${text}<span aria-hidden="true">}</span></a>`;
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}
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export function video(metadata: Metadata, name: string, attributes: object): string {
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if (!attributes["poster"]) {
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attributes["poster"] = `${metadata.permalink}/${name}.png`;
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}
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if (attributes["controls"] === undefined) {
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attributes["controls"] = true;
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}
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var attributesStr = "";
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for (const k of Object.keys(attributes)) {
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const v = attributes[k];
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if (typeof v == "boolean" && v) {
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attributesStr += `${k} `;
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} else if (typeof v == "string") {
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attributesStr += `${k}="${v}" `;
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} else {
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console.warn(`Unexpected attribute value for ${k}: ${v}`);
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}
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}
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return `
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<video ${attributesStr}>
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<source src="${metadata.permalink}/${name}.mp4" type="video/mp4">
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<source src="${metadata.permalink}/${name}.webm" type="video/webm">
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</video>
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`;
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}
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export function render(template: string, data: any, filename?: string): string {
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data.require = require;
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data.fancyLink = fancyLink;
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data.formatDate = formatDate;
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data.video = video;
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return ejs.render(template, data, {
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filename
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});
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}
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