Only update festival ranking data when needed

app/data/index.mjs

@@ -28,7 +28,7 @@ export async function updateAll() {
 
   for (let updater of updaters()) {
     try {
-      await updater.update();
+      await updater.updateIfNeeded();
     } catch (e) {
       console.error(e);
     }

app/data/updaters/DataUpdater.mjs

@@ -54,6 +54,19 @@ export default class DataUpdater
     return new SplatNet3Client(this.nsoClient, locale.code);
   }
 
+  async shouldUpdate() {
+    return true;
+  }
+
+  async updateIfNeeded() {
+    if (!(await this.shouldUpdate())) {
+      this.console.info('No need to update data');
+      return;
+    }
+
+    return await this.update();
+  }
+
   async update() {
     this.console.info('Updating data...');
 

app/data/updaters/FestivalRankingUpdater.mjs

@@ -1,3 +1,5 @@
+import fs from 'fs/promises';
+import prefixedConsole from "../../common/prefixedConsole.mjs";
 import DataUpdater from "./DataUpdater.mjs";
 
 export default class FestivalRankingUpdater extends DataUpdater
@@ -5,10 +7,11 @@ export default class FestivalRankingUpdater extends DataUpdater
   name = 'FestivalRankingUpdater';
   filename = 'festivals.ranking';
 
-  constructor(region = null, festID = null) {
+  constructor(region = null, festID = null, endTime = null) {
     super(region);
 
     this.festID = festID;
+    this.endTime = endTime;
     this.filename += `.${region}.${festID}`;
   }
 
@@ -21,6 +24,32 @@ export default class FestivalRankingUpdater extends DataUpdater
     '$..image3dThumbnail.url',
   ];
 
+  get console() {
+    this._console ??= prefixedConsole('Updater', this.region, this.name, this.festID);
+
+    return this._console;
+  }
+
+  async shouldUpdate() {
+    // Does the file exist?
+    try {
+      await fs.readFile(this.getPath(this.filename));
+    } catch (e) {
+      // File doesn't exist or other error, so we need to download the data
+      return true;
+    }
+
+    // How long until this festival ends/ended?
+    // We want to update this data until 4 hours after the Splatfest ends
+    let diff = Date.now() - new Date(this.endTime);
+    if (diff < 4 * 60 * 60 * 100) {
+      return true;
+    }
+
+    // Otherwise, no need to update
+    return false;
+  }
+
   getData(locale) {
     return this.splatnet(locale).getFestRankingData(this.festID);
   }

app/data/updaters/FestivalUpdater.mjs

@@ -40,8 +40,8 @@ export default class FestivalUpdater extends DataUpdater
 
       Object.assign(node, detailResult.data.fest);
 
-      let rankingUpdater = new FestivalRankingUpdater(this.region, node.id);
-      await rankingUpdater.update();
+      let rankingUpdater = new FestivalRankingUpdater(this.region, node.id, node.endTime);
+      await rankingUpdater.updateIfNeeded();
     }
 
     return result;