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);
+      });
     }
   }
 

app/assets/javascripts/admin/models/email-preview.js.es6

@@ -17,6 +17,20 @@ EmailPreview.reopenClass({
     }).then(function (result) {
       return EmailPreview.create(result);
     });
+  },
+
+  sendDigest: function(lastSeenAt, username, email) {
+    if (Em.isEmpty(lastSeenAt)) {
+      lastSeenAt = moment().subtract(7, 'days').format('YYYY-MM-DD');
+    }
+
+    if (Em.isEmpty(username)) {
+      username = Discourse.User.current().username;
+    }
+
+    return ajax("/admin/email/send-digest.json", {
+      data: { last_seen_at: lastSeenAt, username: username, email: email }
+    });
   }
 });
 

app/assets/javascripts/admin/templates/email-preview-digest.hbs

@@ -19,6 +19,24 @@
 </div>
 
 {{#conditional-loading-spinner condition=loading}}
+
+  {{#if showSendEmailForm}}
+    <br/>
+    <div>
+      {{#if sendingEmail}}
+        {{i18n 'admin.email.sending_test'}}
+      {{else}}
+        <label style="display: inline;">{{i18n 'admin.email.send_digest_label'}}</label>
+        {{text-field value=email placeholderKey="admin.email.test_email_address"}}
+        <button class='btn' {{action "sendEmail"}} disabled={{sendEmailDisabled}}>{{i18n 'admin.email.send_digest'}}</button>
+        {{#if sentEmail}}
+          <span class='result-message'>{{i18n 'admin.email.sent_test'}}</span>
+        {{/if}}
+      {{/if}}
+    </div>
+    <br/>
+  {{/if}}
+
   {{#if showHtml}}
     {{{model.html_content}}}
   {{else}}

app/controllers/admin/email_controller.rb

@@ -50,6 +50,25 @@ class Admin::EmailController < Admin::AdminController
     render json: MultiJson.dump(html_content: renderer.html, text_content: renderer.text)
   end
 
+  def send_digest
+    params.require(:last_seen_at)
+    params.require(:username)
+    params.require(:email)
+    user = User.find_by_username(params[:username])
+    message, skip_reason = UserNotifications.send(:digest, user, {since: params[:last_seen_at]})
+    if message
+      message.to = params[:email]
+      begin
+        Email::Sender.new(message, :digest).send
+        render nothing: true
+      rescue => e
+        render json: {errors: [e.message]}, status: 422
+      end
+    else
+      render json: {errors: skip_reason}
+    end
+  end
+
   def handle_mail
     params.require(:email)
     Email::Processor.process!(params[:email])

config/locales/client.en.yml

@@ -2762,6 +2762,9 @@ en:
         delivery_method: "Delivery Method"
         preview_digest_desc: "Preview the content of the digest emails sent to inactive users."
         refresh: "Refresh"
+        send_digest_label: "Send this result to:"
+        send_digest: "Send"
+        sending_email: "Sending email..."
         format: "Format"
         html: "html"
         text: "text"

config/routes.rb

@@ -151,6 +151,7 @@ Discourse::Application.routes.draw do
         get "/incoming/:id/raw" => "email#raw_email"
         get "/incoming/:id" => "email#incoming"
         get "preview-digest" => "email#preview_digest"
+        get "send-digest" => "email#send_digest"
         post "handle_mail"
       end
     end