Delete all documents in current directory

Adds a new button to the top right for deleting all documents in a
directory.

app/controllers/index.js

@@ -1,9 +1,10 @@
 import Controller from '@ember/controller';
 import { inject as controller } from '@ember/controller';
-import { observer } from '@ember/object';
 import { inject as service } from '@ember/service';
+import { computed, observer } from '@ember/object';
 import { alias } from '@ember/object/computed';
-import { isPresent } from '@ember/utils';
+import { isPresent, isEmpty } from '@ember/utils';
+import { all } from 'rsvp';
 
 export default Controller.extend({
 
@@ -24,6 +25,31 @@ export default Controller.extend({
     }
   }.property('rootListing.[]', 'model.[]'),
 
+  documents: computed('currentListing.[]', function () {
+    return this.get('currentListing')
+               .reject(item => item.path.substr(-1) === '/');
+  }),
+
+  currentListingContainsDocuments: computed('documents.[]', function () {
+    return isPresent(this.get('documents'));
+  }),
+
+  documentCount: computed('documents.[]', function () {
+    if (isPresent(this.get('documents'))) {
+      return this.get('documents').length;
+    } else {
+      return 0;
+    }
+  }),
+
+  parentDir: computed('currentDirPath', function () {
+    const dirs = this.get('currentDirPath')
+                     .split('/')
+                     .reject(p => isEmpty(p));
+
+    return dirs.splice(0, dirs.length - 1).join('/') + '/';
+  }),
+
   connectedChange: observer('connected', function () {
     if (this.get('connected')) {
       // console.debug('connectedChange connected');
@@ -33,4 +59,27 @@ export default Controller.extend({
     }
   }),
 
+  actions: {
+
+    deleteDocuments () {
+      const documentCount = this.get('documentCount');
+      const msg = `This will delete all ${documentCount} documents/files in the current directory. Are you sure?`;
+      if (! window.confirm(msg)) { return false; }
+
+      const client = this.get('storage.client');
+
+      let promises = this.get('documents').map(item => {
+        console.debug('removing ' + item.path);
+        return client.remove(item.path);
+      });
+
+      all(promises).then(() => {
+        this.transitionToRoute('index', {
+          queryParams: { path: this.get('parentDir') }
+        });
+      });
+    }
+
+  }
+
 });

app/routes/index.js

@@ -44,6 +44,12 @@ export default Route.extend({
 
     if (isPresent(model)) {
       controller.set('currentDirPath', model.currentDirPath);
+
+      if (isEmpty(model.currentListing)) {
+        this.transitionTo('index', {
+          queryParams: { path: controller.get('parentDir') }
+        });
+      }
     }
   },
 

app/templates/index.hbs

@@ -1,5 +1,10 @@
 <header>
   {{breadcrumb-nav currentDirPath=currentDirPath}}
+  <nav class="actions">
+    {{#if currentListingContainsDocuments}}
+    <button class="delete-all" {{action "deleteDocuments"}}>delete all</button>
+    {{/if}}
+  </nav>
 </header>
 
 {{#if currentListing}}

tests/unit/controllers/index-test.js

@@ -4,8 +4,89 @@ moduleFor('controller:index', 'Unit | Controller | index', {
   needs: ['controller:application', 'service:storage']
 });
 
-// Replace this with your real tests.
+test('#parentDir', function(assert) {
-test('it exists', function(assert) {
   let controller = this.subject();
-  assert.ok(controller);
+  controller.set('currentDirPath', 'islands/spain/canaries/tenerife/');
+
+  assert.equal(controller.get('parentDir'), 'islands/spain/canaries/');
+});
+
+test('#currentListingContainsDocuments', function(assert) {
+  let controller = this.subject();
+
+  controller.set('currentListing', [
+    {
+      "name": "spain/",
+      "type": "folder",
+      "isBinary": false,
+      "isFolder": true,
+      "size": null,
+      "path": "/islands/spain/",
+      "etag": "885098000"
+    }
+  ]);
+
+  assert.notOk(controller.get('currentListingContainsDocuments'),
+               'returns false when no documents are present');
+
+  controller.set('currentListing', [
+    {
+      "name": "spain/",
+      "type": "folder",
+      "isBinary": false,
+      "isFolder": true,
+      "size": null,
+      "path": "/islands/spain/",
+      "etag": "885098000"
+    },
+    {
+      "name": "lamu",
+      "type": "application/json",
+      "isBinary": false,
+      "isFolder": false,
+      "size": 202,
+      "path": "/islands/lamu",
+      "etag": "478058546"
+    }
+  ]);
+
+  assert.ok(controller.get('currentListingContainsDocuments'),
+            'returns true when no documents are present');
+});
+
+test('#documentCount', function(assert) {
+  let controller = this.subject();
+
+  controller.set('currentListing', [
+    {
+      "name": "spain/",
+      "type": "folder",
+      "isBinary": false,
+      "isFolder": true,
+      "size": null,
+      "path": "/islands/spain/",
+      "etag": "885098000"
+    },
+    {
+      "name": "lamu",
+      "type": "application/json",
+      "isBinary": false,
+      "isFolder": false,
+      "size": 202,
+      "path": "/islands/lamu",
+      "etag": "478058546"
+    },
+    {
+      "name": "dominica",
+      "type": "application/json",
+      "isBinary": false,
+      "isFolder": false,
+      "size": 202,
+      "path": "/islands/dominica",
+      "etag": "929838541"
+    }
+  ]);
+
+  assert.equal(controller.get('documentCount'), 2,
+               'returns the number of documents in the current listing');
 });