adding FcAppConfigModel, #76

services/ucd-lib-client/client/public/elements/pages/home/app-home.js

@@ -44,6 +44,9 @@ class AppHome extends Mixin(PolymerElement)
   constructor() {
     super();
     this.active = true;
+
+    this._injectModel('FcAppConfigModel');
+    console.log(this.FcAppConfigModel.getFeaturedImages());
   }
 
   /**

services/ucd-lib-client/client/public/lib/index.js

@@ -6,5 +6,6 @@ module.exports = {
   MediaModel : require('./models/MediaModel'),
   CitationModel : require('./models/CitationsModel'),
   SeoModel : require('./models/SeoModel'),
-  FiltersModel : require('./models/FiltersModel')
-}
+  FiltersModel : require('./models/FiltersModel'),
+  FcAppConfigModel : require('./models/FcAppConfigModel')
+};

services/ucd-lib-client/client/public/lib/models/FcAppConfigModel.js

@@ -0,0 +1,71 @@
+const {BaseModel} = require('@ucd-lib/cork-app-utils');
+
+/**
+ * @class FcAppConfigModel
+ * @description a wrapper class around APP_CONFIG.fcAppConfig which contains
+ * the /application/ucd-lib-client graph from fcrepo.  Adds nice accessor 
+ * methods
+ */
+class FcAppConfigModel extends BaseModel {
+
+  constructor() {
+    super();
+
+    this.TYPES = {
+      APPLICATION_CONTAINER : 'http://digital.ucdavis.edu/schema#ApplicationContainer'
+    }
+
+    this.byId = {};
+    (APP_CONFIG.fcAppConfig || []).forEach(item => this.byId[item['@id']] = item);
+
+    this.register('FcAppConfigModel');
+  }
+
+  /**
+   * @method getFeaturedCollections
+   * @description return any defined featured collections
+   * 
+   * @returns {Array}
+   */
+  getFeaturedCollections() {
+    let appContainer = this.getApplicationContainer();
+    return asArray(appContainer.featuredCollection)
+      .map(item => {
+        return this.byId[item['@id']];
+      });
+  }
+
+  /**
+   * @method getFeaturedImages
+   * @description return any defined featured images
+   * 
+   * @returns {Array}
+   */
+  getFeaturedImages() {
+    let appContainer = this.getApplicationContainer();
+    return asArray(appContainer.featuredImage)
+      .map(item => {
+        return this.byId[item['@id']];
+      });
+  }
+
+  /**
+   * @method getApplicationContainer
+   * @description return the main application container from the app graph
+   * 
+   * @returns {Object}
+   */
+  getApplicationContainer() {
+    return (APP_CONFIG.fcAppConfig || [])
+      .find(item => item['@type'].includes(this.TYPES.APPLICATION_CONTAINER));
+  }
+
+}
+
+function asArray(val) {
+  if( val === undefined ) return [];
+  if( Array.isArray(val) ) return val;
+  return [val];
+}
+
+module.exports = new FcAppConfigModel();