tweak: Pull predictions to frontpage

src/utils/downloadFrontpage.js

@@ -0,0 +1,42 @@
+import fs from "fs"
+
+import { mongoReadWithReadCredentials } from "./mongo-wrapper.js"
+
+let filename = 'frontpage.json'
+let shuffle = (array) => {
+  // https://stackoverflow.com/questions/2450954/how-to-randomize-shuffle-a-javascript-array
+  let currentIndex = array.length,  randomIndex;
+
+  // While there remain elements to shuffle...
+  while (currentIndex != 0) {
+
+    // Pick a remaining element...
+    randomIndex = Math.floor(Math.random() * currentIndex);
+    currentIndex--;
+
+    // And swap it with the current element.
+    [array[currentIndex], array[randomIndex]] = [
+      array[randomIndex], array[currentIndex]];
+  }
+
+  return array;
+}
+
+let main = async () => {
+  let init = Date.now()
+
+  let json = await mongoReadWithReadCredentials("metaforecasts")
+  
+  json = json.filter(forecast => (forecast.qualityindicators && forecast.qualityindicators.stars >= 3) && (forecast.options && forecast.options.length > 0 && forecast.platform != "AstralCodexTen"))
+  json = shuffle(json)
+  
+  let string = JSON.stringify(json, null, 2)
+  fs.writeFileSync(filename, string);
+  console.log(`File downloaded to ./${filename}`)
+
+  let end = Date.now()
+  let difference = end - init
+  console.log(`Took ${difference / 1000} seconds, or ${difference / (1000 * 60)} minutes.`)
+
+}
+main()