#!/usr/bin/env pwsh
# https://docs.sheetjs.com/docs/demos/frontend/bundler/
$oldDir = Get-Location
$tempDir = Join-Path -Path $env:TEMP -ChildPath "sheetjs-wmr"
if (Test-Path -Path $tempDir) { Remove-Item -Path $tempDir -Recurse -Force }
New-Item -ItemType Directory -Path $tempDir | Out-Null
Set-Location -Path $tempDir
npm init -y
npm i --save https://cdn.sheetjs.com/xlsx-latest/xlsx-latest.tgz
@'
import { utils, version, writeFileXLSX } from 'xlsx';
document.getElementById("xport").addEventListener("click", async() => {
/* fetch JSON data and parse */
const url = "https://docs.sheetjs.com/executive.json";
const raw_data = await (await fetch(url)).json();
/* filter for the Presidents */
const prez = raw_data.filter(row => row.terms.some(term => term.type === "prez"));
/* sort by first presidential term */
prez.forEach(row => row.start = row.terms.find(term => term.type === "prez").start);
prez.sort((l,r) => l.start.localeCompare(r.start));
/* flatten objects */
const rows = prez.map(row => ({
name: row.name.first + " " + row.name.last,
birthday: row.bio.birthday
}));
/* generate worksheet and workbook */
const worksheet = utils.json_to_sheet(rows);
const workbook = utils.book_new();
utils.book_append_sheet(workbook, worksheet, "Dates");
/* fix headers */
utils.sheet_add_aoa(worksheet, [["Name", "Birthday"]], { origin: "A1" });
/* calculate column width */
const max_width = rows.reduce((w, r) => Math.max(w, r.name.length), 10);
worksheet["!cols"] = [ { wch: max_width } ];
/* create an XLSX file and try to save to Presidents.xlsx */
writeFileXLSX(workbook, "Presidents.xlsx");
});
'@ | Out-File -FilePath "index.js" -Encoding utf8
@'
SheetJS Presidents Demo
'@ | Out-File -FilePath "index.html" -Encoding utf8
npx -y wmr@3.8.0 build
npm i --save puppeteer express@4
@'
const puppeteer = require('puppeteer');
const express = require('express');
const app = express();
app.use(express.static('./dist'));
app.listen(7262, async() => {
await new Promise((res,rej) => setTimeout(res, 1000));
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});
const client = await page.target().createCDPSession();
await client.send('Browser.setDownloadBehavior', {
behavior: 'allow',
downloadPath: require("path").resolve('./')
});
await page.goto('http://localhost:7262/');
await page.click("#xport");
await new Promise((res,rej) => setTimeout(res, 1000));
await browser.close();
process.exit();
});
'@ | Out-File -FilePath "test.js" -Encoding utf8
node test.js
npx -y xlsx-cli Presidents.xlsx | Select-Object -First 3
Set-Location $oldDir
Remove-Item -Path $tempDir -Recurse -Force