Merge pull request #2 from axi92/feature/events

Feature/events

README.md

@@ -1,6 +1,6 @@
 <h1 align="center">Welcome to steam-workshop-scraper 👋</h1>
 <p>
-  <a href="https://github.com/axi92/steam-workshop-scraper#readme" target="_blank">
+  <a href="https://www.npmjs.com/package/steam-workshop-scraper" target="_blank">
     <img alt="npm" src="https://img.shields.io/npm/v/steam-workshop-scraper">
   </a>
   <img alt="npm bundle size" src="https://img.shields.io/bundlephobia/minzip/steam-workshop-scraper">
@@ -48,6 +48,22 @@ sws.GetInfo(670764308).then(function (data) {
 });
 ```
 
+### Or with update event
+
+```javascript
+const SteamWorkshopScraper = require('steam-workshop-scraper');
+var sws = new SteamWorkshopScraper();
+
+// Add your steam workshop ids what should be monitored
+sws.AddToUpdates([1384657523, 670764308, 589205263]);
+// Or remove some if you don't need them anymore
+sws.RemoveFromUpdates([670764308, 1384657523]);
+// Get the event fired if a workshop item gets updated.
+sws.Event.on('update', function(data){
+  console.log('data on update:', data);
+});
+```
+
 ## Run tests
 
 ```sh

index.js

@@ -1,11 +1,14 @@
 const scrapeIt = require("scrape-it");
 const moment = require('moment');
 const momentTZ = require('moment-timezone');
-
-
+const events = require('events');
+const async = require("async");
+const schedule = require('node-schedule');
 
 class SteamWorkshopScraper {
   constructor() {
+    this.workshopMap = new Map();
+    this.schedule = undefined;
     this.workShopUrlInfo = 'https://steamcommunity.com/sharedfiles/filedetails/?id=';
     this.workShopUrlChangelog = 'https://steamcommunity.com/sharedfiles/filedetails/changelog/';
     this.parseSettingsInfo = {
@@ -40,6 +43,28 @@ class SteamWorkshopScraper {
         }
       }
     }
+    this.Event = new events.EventEmitter();
+    var that = this;
+    this.schedule = schedule.scheduleJob('*/10 * * * * *', async function () {
+      that.workshopMap.forEach(element => {
+        that.GetInfo(element.id).then(function (data) {
+          let preObject = that.workshopMap.get(element.id);
+          let tempObject = {};
+          tempObject.id = element.id;
+          tempObject.title = data.title;
+          tempObject.size = data.size;
+          tempObject.timePublished = data.timePublished;
+          tempObject.timeUpdated = data.timeUpdated;
+          tempObject.image = data.image;
+          that.workshopMap.set(element.id, tempObject);
+          if (preObject.timeUpdated != undefined && preObject.timeUpdated != data.timeUpdated) { // Workshop item was updated
+            // Emit update
+            that.Event.emit('update', tempObject);
+          }
+        });
+      });
+      // console.log(that.workshopMap);
+    });
   }
 
   GetInfo(id) {
@@ -50,6 +75,31 @@ class SteamWorkshopScraper {
     return this.Scrape(this.workShopUrlChangelog + id.toString(), this.parseSettingsChangeLog);
   }
 
+  AddToUpdates(ids) {
+    if (Array.isArray(ids) === false) {
+      throw new Error('Provided ids are not an array!');
+    }
+    for (var i = 0; i < ids.length; i++) {
+      let tempObject = {};
+      tempObject.id = ids[i];
+      tempObject.title = undefined;
+      tempObject.size = undefined;
+      tempObject.timePublished = undefined;
+      tempObject.timeUpdated = undefined;
+      tempObject.image = undefined;
+      this.workshopMap.set(ids[i], tempObject);
+    }
+  }
+
+  RemoveFromUpdates(ids) {
+    if (Array.isArray(ids) === false) {
+      throw new Error('Provided ids are not an array!')
+    }
+    for (var i = 0; i < ids.length; i++) {
+      this.workshopMap.delete(ids[i]);
+    }
+  }
+
   Scrape(url, parse) {
     return scrapeIt({
       url: url

package.json

@@ -1,6 +1,6 @@
 {
   "name": "steam-workshop-scraper",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "Gets data about Steam workshop mods/assets",
   "main": "index.js",
   "scripts": {
@@ -16,8 +16,10 @@
     "url": "https://github.com/axi92/steam-workshop-scraper/issues"
   },
   "dependencies": {
+    "async": "^3.2.0",
     "moment": "^2.27.0",
     "moment-timezone": "^0.5.31",
+    "node-schedule": "^1.3.2",
     "scrape-it": "^5.2.4"
   },
   "engines": {

test.js

@@ -1,6 +1,15 @@
 const SteamWorkshopScraper = require('./index.js');
+const sws = new SteamWorkshopScraper();
+
+sws.Event.on('update', function(data){
+  console.log('data on update:', data);
+});
+
+// sws.AddToUpdates([670764308]);
+sws.AddToUpdates([1384657523, 670764308, 589205263]);
+// sws.RemoveFromUpdates([670764308, 1384657523]);
+console.log(sws.workshopMap); // All workshop items and informations, needs some time to update. Those are empty on AddToUpdates() and get populated after max. 10s
 
-var sws = new SteamWorkshopScraper();
 
 sws.GetChangeLog(670764308).then(function (data) { // up to date mod
   console.log('data', data.data);
@@ -10,20 +19,17 @@ sws.GetInfo(670764308).then(function (data) {
 }); //up to date 18. Aug. um 16:18 Uhr
 
 
+sws.GetChangeLog(1384657523).then(function (data) { // Old mod 1384657523
+  console.log('data', data.data[0]);
+});
+sws.GetInfo(1384657523).then(function (data) {
+  console.log('data', data);
+});
 
 
-// sws.GetChangeLog(1384657523).then(function (data) { // Old mod 1384657523
-//   console.log('data', data.data[0]);
-// });
-// sws.GetInfo(1384657523).then(function (data) {
-//   console.log('data', data);
-// });
-
-
-
-// sws.GetChangeLog(589205263).then(function (data) { // Never updated mod 589205263
-//   console.log('data', data.data[0]);
-// });
-// sws.GetInfo(589205263).then(function (data) {
-//   console.log('data', data);
-// });
+sws.GetChangeLog(589205263).then(function (data) { // Never updated mod 589205263
+  console.log('data', data.data[0]);
+});
+sws.GetInfo(589205263).then(function (data) {
+  console.log('data', data);
+});