Initializing

Author: vlasn

.gitignore

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+node_modules
+input.xml
+output.csv

README.md

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+### PWP checker
+
+Crawls the DCI page for planeswalker points for the last season as Wizards has refused to provide a decent API for this.
+
+
+#Installation:
+
+- Make sure you have [NodeJS 10+](https://nodejs.org/en/) and [Git](https://git-scm.com/) installed
+- Check out this repository: `git clone https://github.com/vlasn/pwp-check.git`
+- Install dependencies (puppeteer and xml2js) via `npm install`
+- Run the script `node .`
+- In case you're too lazy to rename your input file, you can specify its name as the first argument: `node . iamlazy.xml`. Defaults to `input.xml`
+- Should you want to go faster, you can also define the amount of time the script should wait (ms) after opening the points' modal as the second argument: `node . input.xml 500`. This defaults to 1000ms or 1 second.
+
+The script expects your input file format to be XML, as per the following model:
+```xml
+<LocalPlayers>
+    <Player FirstName="Veljo" LastName="Lasn" MiddleInitial="" DciNumber="9115259053" CountryCode="EE" IsJudge="False" />
+</LocalPlayers>
+```

index.js

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+const puppeteer = require('puppeteer')
+const fs = require('fs')
+const path = require('path')
+const xml2js = require('xml2js')
+const [,,inputFilename = 'input.xml', timeout = 1000] = process.argv
+
+const t = ms => (new Promise(r => setTimeout(r, ms)))
+
+async function asyncForEach(array, callback) {
+    for (let index = 0; index < array.length; index++) {
+      await callback(array[index], index, array)
+    }
+}
+
+const parseInput = filename => new Promise((resolve, reject) => {
+    const fileToString = fs.readFileSync(path.resolve(__dirname, filename), {encoding: "latin1"})
+    xml2js.parseString(fileToString, (err, result) =>{
+        if (err) {
+            console.log(err)
+            reject(err)
+            return
+        }
+        const players = result.LocalPlayers.Player.map(({$}) => $)
+        return resolve(players)
+    })
+})
+
+const navigateAndGetValue = async (page, dciNumber) => {
+    console.log(`Fetching points for DCI#${dciNumber}`)
+    await page.goto(`http://www.wizards.com/Magic/PlaneswalkerPoints/${dciNumber}`, { waitUntil: 'networkidle0' })
+    await page.evaluate(() => ShowPointHistoryModal('Yearly'))
+    await t(timeout)
+    const points = await page.evaluate(() => document.querySelector('#YearlyValue > div:nth-child(5) > div.PointsValue').innerText)
+    return points
+}
+
+const iterate = async (page, player, stream) => {
+    const dur = Date.now()
+    const points = await navigateAndGetValue(page, player.DciNumber)
+    if (parseInt(points) < 100) {
+        console.log(`${player.FirstName} ${player.LastName} scored under 100 points, not logging. \n`)
+        return
+    }
+    const line = `${player.FirstName}, ${player.LastName}, ${player.DciNumber}, ${points} \n`
+    stream.write(line)
+    console.log(`Fetched ${points} points for ${player.FirstName} ${player.LastName} in ${Date.now() - dur}ms \n`)
+    return
+}
+
+const output = fs.createWriteStream('output.csv', {flags: 'a'});
+
+(async () => {
+    const players = await parseInput(inputFilename)
+    console.log(`Checking ${players.length} players' points..`)
+    const now = new Date()
+    const browser = await puppeteer.launch()
+    const page = await browser.newPage()
+
+    await page.setRequestInterception(true);
+    page.on('request', (request) => {
+        if (['image', 'font', 'stylesheet'].includes(request.resourceType())){
+            request.abort();
+        } else {
+            request.continue();
+        }
+    });
+    await asyncForEach(players, n => iterate(page, n, output))
+    await browser.close()
+    await output.close()
+    console.log(`Done in ${Date.now() - now}ms`)
+    return
+})()