Initial commit

src/index.ts

@@ -0,0 +1,53 @@
+import * as express from "express";
+import fetch from "node-fetch";
+import {slice} from "./utils";
+
+const app = express();
+const data = {
+  dayCount: 500000,
+  firstVac: 1400000,
+  secondVac: 5000000,
+  finalDate: new Date()
+};
+
+(async function fetchData() {
+  const res = await fetch("https://impfdashboard.de/static/data/germany_vaccinations_timeseries_v2.tsv");
+  const html = await res.text();
+  const arrayOfLines = html.split(/[\r\n]+/);
+  let sumOfTodays = 0;
+  let countDays = 0;
+  for (const line of slice(arrayOfLines, arrayOfLines.length-8)) {
+    const arr = line.split(/\s+/);
+    if (arr.length < 10) continue;
+    if (!Number.isNaN(+(arr[2]))) {
+      sumOfTodays += +(arr[2]);
+      countDays++;
+    }
+    data.firstVac = +(arr[5]) || data.firstVac;
+    data.secondVac = +(arr[9]) || data.secondVac;
+  }
+  data.dayCount = sumOfTodays / countDays;
+  const daysLeft = (83703925*2 - data.firstVac - data.secondVac) / data.dayCount * 0.8;
+  const date = new Date();
+  date.setTime(date.getTime() + daysLeft * 24 * 60 * 60 * 1000);
+  data.finalDate = date;
+  setTimeout(fetchData, 1000*60*60);
+})()
+
+app.set('view engine', 'pug')
+app.set('views', './views')
+app.use("/public", express.static("./public"))
+app.get("/", (req, res) => {
+  res.render("index", data);
+})
+app.get("/impressum", (req, res) => {
+  res.render("impressum");
+})
+
+const listener = app.listen(
+  3000,
+  () => {
+    const addr = listener.address();
+    console.log(`App listening on port ${typeof addr === "object" ? addr.port : addr}!`);
+  }
+)

src/utils.ts

@@ -0,0 +1,12 @@
+export function* slice(src, start, finish = src.length) {
+  let index = 0;
+  for (const value of src) {
+    if (index >= finish) {
+      return;
+    }
+    if (index >= start) {
+      yield value;
+    }
+    ++index;
+  }
+}