Add a tweet for when a new stage has been posted

src/updater/twitter.js

@@ -4,6 +4,7 @@ const ScheduleTweet = require('./twitter/ScheduleTweet');
 const GearTweet = require('./twitter/GearTweet');
 const SalmonRunTweet = require('./twitter/SalmonRunTweet');
 const NewWeaponTweet = require('./twitter/NewWeaponTweet');
+const NewStageTweet = require('./twitter/NewStageTweet');
 const SplatfestTweet = require('./twitter/SplatfestTweet');
 
 let tweets = [
@@ -11,6 +12,7 @@ let tweets = [
     new GearTweet,
     new SalmonRunTweet,
     new NewWeaponTweet,
+    new NewStageTweet,
     new SplatfestTweet('na'),
     new SplatfestTweet('eu'),
     new SplatfestTweet('jp'),

src/updater/twitter/NewStageTweet.js

@@ -0,0 +1,32 @@
+const TwitterPostBase = require('./TwitterPostBase');
+const { readJson } = require('../utilities');
+const path = require('path');
+const fs = require('fs');
+
+const stagesPath = path.resolve('storage/stages.json');
+const splatnetAssetPath = path.resolve('public/assets/splatnet');
+
+class NewStageTweet extends TwitterPostBase {
+    getKey() { return 'newstage'; }
+    getName() { return 'New Stage'; }
+
+    getStages() {
+        return readJson(stagesPath);
+    }
+
+    getData() {
+        return this.getStages().find(s => s.first_seen == this.getDataTime());
+    }
+
+    getImage(data) {
+        return fs.readFileSync(splatnetAssetPath + data.image);
+    }
+
+    getText(data) {
+        let hours = (data.first_available - this.getDataTime()) / 60 / 60;
+        let duration = (hours == 1) ? '1 hour' : `${hours} hours`;
+        return `The first schedules for ${data.name} have been posted! Start playing the new stage in ${duration}. #splatoon2`;
+    }
+}
+
+module.exports = NewStageTweet;

src/updater/twitter/ScheduleTweet.js

@@ -13,6 +13,10 @@ class ScheduleTweet extends TwitterPostBase {
         return readData('schedules.json');
     }
 
+    getStages() {
+        return readJson(stagesPath);
+    }
+
     getData() {
         return this.getSchedules().regular.find(s => s.start_time == this.getDataTime());
     }
@@ -27,7 +31,7 @@ class ScheduleTweet extends TwitterPostBase {
 
     getText(data) {
         // Load known stages
-        let stages = readJson(stagesPath);
+        let stages = this.getStages();
 
         for (let stage of [data.stage_a, data.stage_b]) {
             let stageInfo = stages.find(s => s.id == stage.id);