fix(core): update

ts/smartfeed.classes.feed.ts

@@ -4,25 +4,32 @@ export interface IFeedOptions {
   domain: string;
   title: string;
   description: string;
+  category: string;
   company: string;
   companyEmail: string;
   companyDomain: string;
 }
 
-export interface IFeedItem {}
+export interface IFeedItem {
+  title: string;
+  timestamp: number;
+  url: string;
+  authorName: string;
+  imageUrl: string;
+}
 
 export class Feed {
   options: IFeedOptions;
-  items: IFeedOptions[];
+  items: IFeedItem[] = [];
   constructor(optionsArg: IFeedOptions) {
     this.options = optionsArg;
   }
 
-  public addItem() {
-
+  public addItem(itemArg: IFeedItem) {
+    this.items.push(itemArg);
   }
 
-  public exportRssFeed() {
+  private getFeedObject() {
     const feed = new plugins.feed.Feed({
       copyright: `All rights reserved, ${this.options.company}`,
       id: this.options.domain,
@@ -36,5 +43,31 @@ export class Feed {
       generator: '@pushrocks/smartfeed',
       language: "en"
     });
+
+    feed.addCategory(this.options.category);
+    for (const itemArg of this.items) {
+      feed.addItem({
+        title: itemArg.title,
+        date: new Date(itemArg.timestamp),
+        link: itemArg.url,
+        image: itemArg.imageUrl,
+        author: [{
+          name: itemArg.authorName
+        }]
+      });
+    }
+    return feed;
+  }
+
+  public exportRssFeedString(): string {
+    return this.getFeedObject().rss2();
+  }
+
+  public exportAtomFeed(): string {
+    return this.getFeedObject().atom1();
+  }
+
+  public exportJsonFeed(): string {
+    return this.getFeedObject().json1();
   }
 }