#!/bin/bash
# https://docs.sheetjs.com/docs/demos/net/headless#puppeteer

cd /tmp
rm -rf sheetjs-puppeteer-deno
mkdir sheetjs-puppeteer-deno
cd sheetjs-puppeteer-deno

env PUPPETEER_PRODUCT=chrome deno run -A --unstable https://deno.land/x/puppeteer@16.2.0/install.ts

cat >SheetJSPuppeteer.ts <<EOF
import puppeteer from "https://deno.land/x/puppeteer@16.2.0/mod.ts";
import { decode } from "https://deno.land/std/encoding/base64.ts"

/* (1) Load the target page */
const browser = await puppeteer.launch();
const page = await browser.newPage();
page.on("console", msg => console.log("PAGE LOG:", msg.text()));
await page.setViewport({width: 1920, height: 1080});
await page.goto('https://sheetjs.com/demos/table');

/* (2) Load the standalone SheetJS build from the CDN */
await page.addScriptTag({ url: 'https://cdn.sheetjs.com/xlsx-latest/package/dist/xlsx.full.min.js' });

/* (3) Run the snippet in browser and return data */
const b64 = await page.evaluate(() => {

  /* find first table */
  var table = document.body.getElementsByTagName('table')[0];

  /* call table_to_book on first table */
  var wb = XLSX.utils.table_to_book(table);

  /* generate XLSB and return binary string */
  return XLSX.write(wb, {type: "base64", bookType: "xlsb"});
});
/* (4) write data to file */
Deno.writeFileSync("SheetJSPuppeteer.xlsb", decode(b64));

await browser.close();
EOF

deno run -A --unstable SheetJSPuppeteer.ts
npx -y xlsx-cli SheetJSPuppeteer.xlsb