feat(text block): add advanced behaviour for content

src/Types/TextBlock.ts

@@ -11,9 +11,30 @@ export class TextBlock extends XMLElement {
   }
 
   getContent(lang?: string): XMLElement | null {
+    // item with undefined as lang is default
     let def = this.content.find(x => x._attr == null || x._attr.lang == null);
+
     let items = this.content.filter(x => x._attr != null && x._attr.lang === lang);
 
-    return items.length ? items[0] : def;
+    // if there is more than one content element
+    // concat the text of all content elements with same lang
+    if (items.length > 1) {
+      items.forEach((item) => {
+        this.content.splice(this.content.indexOf(item), 1);
+      });
+
+      let grouped = items.reduce((prev, curr) => {
+        prev._text += `\n${curr._text}`;
+        return prev;
+      });
+
+      console.log(grouped);
+
+      this.content.push(grouped);
+
+      return grouped;
+    } else {
+      return items.length ? items[0] : def;
+    }
   }
 }

tests/Types/TextBlock.test.ts

@@ -5,6 +5,7 @@ function getOptions() {
   return {
     content: [
       new ElementStringWithLang("Hallo", "de"),
+      new ElementStringWithLang("Jan", "de"),
       new ElementStringWithLang("Hello", "en"),
     ],
   };
@@ -42,7 +43,7 @@ describe("TextBlock", function() {
     it("should return correct content with lang flag", function() {
       let textBlock = new TextBlock(getOptionsWithDefault());
 
-      expect(textBlock.getContent("de")._text).to.be.equal("Hallo");
+      expect(textBlock.getContent("de")._text).to.be.equal("Hallo\nJan");
     });
   });
 });