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thumbnails.mjs
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thumbnails.mjs
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import fs from 'fs';
import puppeteer from 'puppeteer';
import sharp from 'sharp';
import { dirname } from 'path';
import { fileURLToPath } from 'url';
import { kebabCaseToPascalCase, toKebabCase } from '../src/app/helpers/strings.mjs';
import * as categories from "../src/examples/index.mjs";
import { spawn } from 'node:child_process';
const port = process.env.PORT || '12321';
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const MAIN_DIR = `${__dirname}/../`;
const debug = false;
/** @type {{category: string, example: string}[]} */
const exampleList = [];
for (const category_ in categories) {
const category = toKebabCase(category_);
const examples = categories[category_];
for (const example_ in examples) {
const example = toKebabCase(example_).replace('-example', '');
exampleList.push({
category,
example,
});
}
}
if (!fs.existsSync(`${MAIN_DIR}/dist/thumbnails`)) {
fs.mkdirSync(`${MAIN_DIR}/dist/thumbnails`);
}
async function takeScreenshots() {
for (let i = 0; i < exampleList.length; i++) {
const exampleListItem = exampleList[i];
const exampleSlug = exampleListItem.example;
const categorySlug = exampleListItem.category;
const example = kebabCaseToPascalCase(exampleListItem.example);
const category = kebabCaseToPascalCase(exampleListItem.category);
if (fs.existsSync(`${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}_large.png`)) {
console.log(`skipped: ${category}/${example}`);
continue;
}
const browser = await puppeteer.launch({ headless: 'new' });
const page = await browser.newPage();
if (debug) {
page.on('console', message => console.log(`${message.type().substr(0, 3).toUpperCase()} ${message.text()}`));
page.on('pageerror', ({ message }) => console.log(message));
// page.on('response', response => console.log(`${response.status()} ${response.url()}`));
page.on('requestfailed', request => console.log(`${request.failure().errorText} ${request.url()}`));
}
// const link = `http://localhost/playcanvas-engine/examples/dist/iframe/${category}_${example}.html?miniStats=false`;
const link = `http://localhost:${port}/iframe/${category}_${example}.html?miniStats=false`;
if (debug) {
console.log("goto", link);
}
await page.goto(link);
if (debug) {
console.log("wait for", link);
}
await page.waitForFunction("window?.pc?.app?._time > 1000");
await page.screenshot({ path: `${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}.png` });
await sharp(`${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}.png`)
.resize(320, 240)
.toFile(`${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}_large.png`);
await sharp(`${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}.png`)
.resize(64, 48)
.toFile(`${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}_small.png`);
fs.rmSync(`${MAIN_DIR}/dist/thumbnails/${categorySlug}_${exampleSlug}.png`);
console.log(`screenshot taken for: ${category}/${example}`);
await browser.close();
}
}
async function sleep(ms) {
return new Promise(resolve => {
setTimeout(resolve, ms);
});
}
async function main() {
console.log('Spawn server on', port);
// We need this kind of command:
// npx serve dist --config ../serve.json
// Reason: https://github.com/vercel/serve/issues/732
// (who *ever* thought that stripping .html was a good idea in the first place...)
const server = spawn('serve', ['dist', '-l', port, '--no-request-logging', '--config', '../serve.json']);
await sleep(1000); // give a second to spawn server
console.log("Starting puppeteer screenshot process");
try {
await takeScreenshots();
} catch (e) {
console.error(e);
}
console.log('Kill server on', port);
server.kill();
}
main();