FEATURE: send digest preview to an email address

app/assets/javascripts/admin/controllers/admin-email-preview-digest.js.es6

@@ -1,7 +1,12 @@
 import EmailPreview from 'admin/models/email-preview';
+import { popupAjaxError } from 'discourse/lib/ajax-error';
 
 export default Ember.Controller.extend({
 
+  emailEmpty: Em.computed.empty('email'),
+  sendEmailDisabled: Em.computed.or('emailEmpty', 'sendingEmail'),
+  showSendEmailForm: Em.computed.notEmpty('model.html_content'),
+
   actions: {
     refresh() {
       const model = this.get('model');
@@ -15,6 +20,23 @@ export default Ember.Controller.extend({
 
     toggleShowHtml() {
       this.toggleProperty('showHtml');
+    },
+
+    sendEmail() {
+      this.set('sendingEmail', true);
+      this.set('sentEmail', false);
+
+      const self = this;
+
+      EmailPreview.sendDigest(this.get('lastSeen'), this.get('username'), this.get('email')).then(result => {
+        if (result.errors) {
+          bootbox.alert(result.errors);
+        } else {
+          self.set('sentEmail', true);
+        }
+      }).catch(popupAjaxError).finally(function() {
+        self.set('sendingEmail', false);
+      });
     }
   }