breadcrumbs for datasets. creates util modules to building urns and validating them. known issue with last item in breadcrumbs for urns should probably not be a link

wherehows-web/app/routes/datasets/dataset.js

@@ -3,6 +3,7 @@ import {
   createPrivacyCompliancePolicy,
   createSecuritySpecification
 } from 'wherehows-web/utils/datasets/functions';
+import { makeUrnBreadcrumbs } from 'wherehows-web/utils/entities';
 
 const {
   Route,
@@ -216,64 +217,16 @@ export default Route.extend({
         });
       });
 
-    if (urn) {
-      var index = urn.lastIndexOf('/');
-      if (index != -1) {
-        var listUrl = '/api/v1/list/datasets?urn=' + urn.substring(0, index + 1);
-        $.get(listUrl, function (data) {
-          if (data && data.status == "ok") {
-            // renderDatasetListView(data.nodes, name);
-          }
-        });
-      }
-    }
-
     if (datasetCommentsComponent) {
       datasetCommentsComponent.getComments();
     }
 
+    // If urn exists, create a breadcrumb list
+    // TODO: DSS-7068 Refactoring in progress , move this to a computed prop on a container component
+    // FIXME: DSS-7068 browse.entity?urn route does not exist for last item in breadcrumb i.e. the dataset
+    //  currently being viewed. Should this even be a link in the first place?
     if (urn) {
-      urn = urn.replace('<b>', '').replace('</b>', '');
-      var index = urn.lastIndexOf("/");
-      if (index != -1) {
-        var name = urn.substring(index + 1);
-      }
-      // var breadcrumbs = [{"title": "DATASETS_ROOT", "urn": "1", destRoute: 'datasets.page'}];
-      let breadcrumbs = [
-        {
-          route: 'datasets.page',
-          text: 'datasets',
-          model: 1
-        }
-      ];
-      var updatedUrn = urn.replace("://", "");
-      var b = updatedUrn.split('/');
-      for (var i = 0; i < b.length; i++) {
-        if (i === 0) {
-          breadcrumbs.push({
-            text: b[i],
-            // urn: "name/" + b[i] + "/page/1?urn=" + b[i] + ':///',
-            model: [b[i], 1],
-            queryParams: {urn: b[i] + ':///'},
-            route: 'datasets.name.subpage'
-          });
-        } else if (i === (b.length - 1)) {
-          breadcrumbs.push({
-            text: b[i],
-            model: id,
-            route: 'datasets.dataset'
-          });
-        } else {
-          breadcrumbs.push({
-            text: b[i],
-            // urn: "name/" + b[i] + "/page/1?urn=" + urn.split('/').splice(0, i + 3).join('/'),
-            model: [b[i], 1],
-            queryParams: {urn: urn.split('/').splice(0, i + 3).join('/')},
-            route: 'datasets.name.subpage'
-          });
-        }
-      }
-      controller.set("breadcrumbs", breadcrumbs);
+      set(controller, 'breadcrumbs', makeUrnBreadcrumbs(urn));
     }
 
     // Get the list of ownerTypes from endpoint,

wherehows-web/app/styles/components/dataset-author/_owner-table.scss

@@ -55,9 +55,4 @@ $zebra: set-color(grey, light);
       display: block;
     }
   }
-
-  /// Owner last modified column in owner -table
-  &__owner-last-mod {
-    white-space: nowrap;
-  }
 }

wherehows-web/app/templates/components/dataset-author.hbs

@@ -82,7 +82,7 @@
             onclick={{action "willEditUserName"
                              owner}}>
 
-          <label class={{if (contains owner.source restrictedSources) "" "dataset-author-cell__name-tag"}}>
+          <label class={{unless (contains owner.source restrictedSources) "dataset-author-cell__name-tag"}}>
             {{owner.userName}}
           </label>
           {{aupac-typeahead

wherehows-web/app/templates/datasets/dataset.hbs

@@ -5,7 +5,7 @@
         <ul class="breadcrumbs">
           {{#each breadcrumbs as |crumb|}}
             <li>
-              {{crumb.text}}
+              {{link-to crumb.crumb "browse.entity" "datasets" (query-params page=1 urn=crumb.urn)}}
             </li>
           {{/each}}
         </ul>

wherehows-web/app/templates/index.hbs

@@ -6,7 +6,6 @@
           <div class="feature-container">
             <article class="feature-card">
               {{#link-to featureCard.route}}
-                <span class="feature-card-icon" title={{featureCard.title}}></span>
                 <h3 class="feature-card__title">{{featureCard.title}}</h3>
                 <div class="feature-card__description">
                   {{featureCard.description}}

wherehows-web/app/utils/entities/index.js

@@ -0,0 +1,3 @@
+import makeUrnBreadcrumbs from 'wherehows-web/utils/entities/make-urn-breadcrumbs';
+
+export { makeUrnBreadcrumbs };

wherehows-web/app/utils/entities/make-urn-breadcrumbs.js

@@ -0,0 +1,33 @@
+import { urnRegex } from 'wherehows-web/utils/validators/urn';
+
+/**
+ * Takes a urn string and parse it into an array of breadcrumb objects with crumb, and urn as
+ * properties.
+ * Hierarchy is implied in element ordering
+ * @param {String} urn
+ * @return {Array.<{crumb, urn}>|null}
+ */
+export default urn => {
+  const urnMatch = urnRegex.exec(urn);
+
+  if (urnMatch) {
+    // Initial element in a match array from RegExp#exec is the full match, not needed here
+    const urnParts = urnMatch.filter((match, index) => index);
+    // Splits the 2nd captured group into an array of urn names and spreads into a new list
+    const crumbs = [urnParts[0], ...urnParts[1].split('/')];
+
+    // Reduces the crumbs into a list of crumb names and urn paths
+    return crumbs.reduce((breadcrumbs, crumb, index) => {
+      const previousCrumb = breadcrumbs[index - 1];
+      const breadcrumb = {
+        crumb,
+        // First item is root
+        urn: !index ? `${crumb}:///` : `${previousCrumb.urn}${crumb}/`
+      };
+
+      return [...breadcrumbs, breadcrumb];
+    }, []);
+  }
+
+  return null;
+};

wherehows-web/app/utils/validators/urn.js

@@ -0,0 +1,8 @@
+const urnRegex = /^([a-z_]+):\/{3}([a-z_\-\/]*)/i;
+/**
+ * Asserts that a provided string matches the urn pattern above
+ * @param {String} candidateUrn the string to test on
+ */
+export default candidateUrn => urnRegex.test(String(candidateUrn));
+
+export { urnRegex };