feat: add filter chips for news

src/app/modules/news/news.provider.ts

@@ -13,7 +13,13 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 import {Injectable} from '@angular/core';
-import {SCMessage} from '@openstapps/core';
+import {
+  SCBooleanFilterArguments,
+  SCMessage,
+  SCSearchBooleanFilter,
+  SCSearchFilter,
+  SCSearchQuery,
+} from '@openstapps/core';
 import {DataProvider} from '../data/data.provider';
 /**
  * Service for providing news messages
@@ -22,34 +28,59 @@ import {DataProvider} from '../data/data.provider';
   providedIn: 'root',
 })
 export class NewsProvider {
-  constructor(private dataProvider: DataProvider) {
-  }
+  constructor(private dataProvider: DataProvider) {}
 
   /**
    * Get news messages
    *
    * @param size How many messages/news to fetch
    * @param from From which (results) page to start
+   * @param filters Additional filters to apply
    */
-  async getList(size: number, from: number): Promise<SCMessage[]> {
-    const result = await this.dataProvider.search({
+  async getList(
+    size: number,
+    from: number,
+    filters?: SCSearchFilter[],
+  ): Promise<SCMessage[]> {
+    const query: SCSearchQuery = {
       filter: {
-        type: 'value',
+        type: 'boolean',
         arguments: {
-          field: 'type',
-          value: 'message',
+          filters: [
+            {
+              type: 'value',
+              arguments: {
+                field: 'type',
+                value: 'message',
+              },
+            },
+          ],
+          operation: 'and',
         },
       },
-      sort: [{
-        type: 'generic',
-        arguments: {
-          field: 'datePublished',
+      sort: [
+        {
+          type: 'generic',
+          arguments: {
+            field: 'datePublished',
+          },
+          order: 'desc',
         },
-        order: 'desc',
-      }],
+      ],
       size: size,
       from: from,
-    });
+    };
+
+    if (typeof filters !== 'undefined') {
+      for (const filter of filters) {
+        (
+          (query.filter as SCSearchBooleanFilter)
+            .arguments as SCBooleanFilterArguments
+        ).filters.push(filter);
+      }
+    }
+
+    const result = await this.dataProvider.search(query);
 
     return result.data as SCMessage[];
   }