refactor: change addPointsToTrack -> parseTrackPoints generator

logic/TrackInfo.js

@@ -1,8 +0,0 @@
-class TrackInfo {
-  constructor(track, trackData) {
-    this.track = track;
-    this.trackData = trackData;
-  }
-}
-
-module.exports = TrackInfo;

logic/tracks.js

@@ -61,7 +61,7 @@ function replaceDollarNewlinesHack(body) {
   return body;
 }
 
-function addPointsToTrack(trackInfo, body, format = null) {
+function* parseTrackPoints(body, format = null) {
   body = replaceDollarNewlinesHack(body);
 
   const detectedFormat = format != null ? format : detectFormat(body);
@@ -80,10 +80,7 @@ function addPointsToTrack(trackInfo, body, format = null) {
       break;
   }
 
-  const points = trackInfo.trackData.points;
-  for (const newPoint of parser(body)) {
-    points.push(newPoint);
-  }
+  yield* parser(body);
 }
 
 function detectFormat(body) {
@@ -257,4 +254,4 @@ function* parseObsver2(body) {
   }
 }
 
-module.exports = { addPointsToTrack, detectFormat, parseObsver1, parseObsver2, replaceDollarNewlinesHack };
+module.exports = { parseTrackPoints, detectFormat, parseObsver1, parseObsver2, replaceDollarNewlinesHack };

logic/tracks.test.js

@@ -1,17 +1,14 @@
-const { addPointsToTrack, parseObsver1, detectFormat, parseObsver2, replaceDollarNewlinesHack } = require('./tracks');
-const TrackInfo = require('./TrackInfo');
+const { parseTrackPoints, parseObsver1, detectFormat, parseObsver2, replaceDollarNewlinesHack } = require('./tracks');
 
 const { test1, test2, test3 } = require('./_tracks_testdata');
 
-describe('addPointsToTrack', () => {
+describe('parseTrackPoints', () => {
   it('is a function', () => {
-    expect(typeof addPointsToTrack).toBe('function');
+    expect(typeof parseTrackPoints).toBe('function');
   });
 
   it('works on the sample data with an empty track', () => {
-    const trackInfo = new TrackInfo({}, { points: [] });
-    addPointsToTrack(trackInfo, test1);
-    const points = trackInfo.trackData.points;
+    const points = Array.from(parseTrackPoints(test1));
     expect(points).toHaveLength(324);
     expect(points[0]).toEqual({
       date: '12.07.2020',

routes/api/tracks.js

@@ -6,7 +6,7 @@ const Comment = mongoose.model('Comment');
 const User = mongoose.model('User');
 const auth = require('../auth');
 const currentTracks = new Map();
-const { addPointsToTrack } = require('../../logic/tracks');
+const { parseTrackPoints } = require('../../logic/tracks');
 const wrapRoute = require('../../_helpers/wrapRoute');
 
 // Preload track objects on routes with ':track'
@@ -155,8 +155,7 @@ router.post(
     track.trackData = trackData._id;
 
     if (req.body.track.body && req.body.track.body.trim()) {
-      trackData.points = [];
-      addPointsToTrack({ trackData }, track.body);
+      trackData.points = Array.from(parseTrackPoints(track.body));
     }
 
     track.author = user;
@@ -242,7 +241,7 @@ router.post(
     }
 
     const trackData = await TrackData.findById(track.trackData);
-    addPointsToTrack({ trackData }, track.body);
+    trackData.points = Array.from(parseTrackPoints(track.body));
     await trackData.save();
 
     // We are done with this track, it is complete.
@@ -292,8 +291,7 @@ router.put(
         trackData = new TrackData();
         req.track.trackData = trackData._id;
       }
-      trackData.points = [];
-      addPointsToTrack({ trackData }, req.track.body);
+      trackData.points = Array.from(parseTrackPoints(req.track.body));
       await trackData.save();
     }