Add ability to email announcements to all users

app/controllers/admin/announcements/distributions_controller.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class Admin::Announcements::DistributionsController < Admin::BaseController
+  before_action :set_announcement
+
+  def create
+    authorize @announcement, :distribute?
+    @terms_of_service.touch(:notification_sent_at)
+    Admin::DistributeAnnouncementNotificationWorker.perform_async(@announcement.id)
+    redirect_to admin_announcements_index_path
+  end
+
+  private
+
+  def set_announcement
+    @announcement = Announcement.find(params[:announcement_id])
+  end
+end

app/controllers/admin/announcements/previews_controller.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class Admin::Announcements::PreviewsController < Admin::BaseController
+  before_action :set_announcement
+
+  def show
+    authorize @announcement, :distribute?
+    @user_count = @announcement.scope_for_notification.count
+  end
+
+  private
+
+  def set_announcement
+    @announcement = Announcement.find(params[:announcement_id])
+  end
+end

app/controllers/admin/announcements/tests_controller.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class Admin::Announcements::TestsController < Admin::BaseController
+  before_action :set_announcement
+
+  def create
+    authorize @announcement, :distribute?
+    UserMailer.announcement_published(current_user, @announcement).deliver_later!
+    redirect_to admin_announcements_path
+  end
+
+  private
+
+  def set_announcement
+    @announcement = Announcement.find(params[:announcement_id])
+  end
+end

app/mailers/user_mailer.rb

@@ -219,6 +219,15 @@ class UserMailer < Devise::Mailer
     end
   end
 
+  def announcement_published(user, announcement)
+    @resource = user
+    @announcement = announcement
+
+    I18n.with_locale(locale) do
+      mail subject: default_i18n_subject
+    end
+  end
+
   private
 
   def default_devise_subject

app/models/announcement.rb

@@ -5,16 +5,17 @@
 # Table name: announcements
 #
 #  id                   :bigint(8)        not null, primary key
-#  text         :text             default(""), not null
-#  published    :boolean          default(FALSE), not null
 #  all_day              :boolean          default(FALSE), not null
+#  ends_at              :datetime
+#  notification_sent_at :datetime
+#  published            :boolean          default(FALSE), not null
+#  published_at         :datetime
 #  scheduled_at         :datetime
 #  starts_at            :datetime
-#  ends_at      :datetime
+#  status_ids           :bigint(8)        is an Array
+#  text                 :text             default(""), not null
 #  created_at           :datetime         not null
 #  updated_at           :datetime         not null
-#  published_at :datetime
-#  status_ids   :bigint(8)        is an Array
 #
 
 class Announcement < ApplicationRecord
@@ -54,6 +55,10 @@ class Announcement < ApplicationRecord
     update!(published: false, scheduled_at: nil)
   end
 
+  def notification_sent?
+    notification_sent_at.present?
+  end
+
   def mentions
     @mentions ||= Account.from_text(text)
   end
@@ -86,6 +91,10 @@ class Announcement < ApplicationRecord
     end
   end
 
+  def scope_for_notification
+    User.confirmed.joins(:account).merge(Account.without_suspended)
+  end
+
   private
 
   def grouped_ordered_announcement_reactions

app/policies/announcement_policy.rb

@@ -16,4 +16,8 @@ class AnnouncementPolicy < ApplicationPolicy
   def destroy?
     role.can?(:manage_announcements)
   end
+
+  def distribute?
+    record.published? && !record.notification_sent? && role.can?(:manage_settings)
+  end
 end

app/views/admin/announcements/_announcement.html.haml

@@ -10,6 +10,8 @@
         = l(announcement.created_at)
 
     %div
+      - if can?(:distribute, announcement)
+        = table_link_to 'mail', t('admin.terms_of_service.notify_users'), admin_announcement_preview_path(announcement)
       - if can?(:update, announcement)
         - if announcement.published?
           = table_link_to 'toggle_off', t('admin.announcements.unpublish'), unpublish_admin_announcement_path(announcement), method: :post, data: { confirm: t('admin.accounts.are_you_sure') }

app/views/admin/announcements/previews/show.html.haml

@@ -0,0 +1,20 @@
+- content_for :page_title do
+  = t('admin.announcements.preview.title')
+
+- content_for :heading_actions do
+  .back-link
+    = link_to admin_announcements_path do
+      = material_symbol 'chevron_left'
+      = t('admin.announcements.back')
+
+%p.lead
+  = t('admin.announcements.preview.explanation_html', count: @user_count, display_count: number_with_delimiter(@user_count))
+
+.prose
+  = linkify(@announcement.text)
+
+%hr.spacer/
+
+.content__heading__actions
+  = link_to t('admin.terms_of_service.preview.send_preview', email: current_user.email), admin_announcement_test_path(@announcement), method: :post, class: 'button button-secondary'
+  = link_to t('admin.terms_of_service.preview.send_to_all', count: @user_count, display_count: number_with_delimiter(@user_count)), admin_announcement_distribution_path(@announcement), method: :post, class: 'button', data: { confirm: t('admin.reports.are_you_sure') }

app/views/user_mailer/announcement_published.html.haml

@@ -0,0 +1,12 @@
+= content_for :heading do
+  = render 'application/mailer/heading',
+           image_url: frontend_asset_url('images/mailer-new/heading/user.png'),
+           title: t('user_mailer.announcement_published.title', domain: site_hostname)
+%table.email-w-full{ cellspacing: 0, cellpadding: 0, border: 0, role: 'presentation' }
+  %tr
+    %td.email-body-padding-td
+      %table.email-inner-card-table{ cellspacing: 0, cellpadding: 0, border: 0, role: 'presentation' }
+        %tr
+          %td.email-inner-card-td.email-prose
+            %p= t('user_mailer.announcement_published.description', domain: site_hostname)
+            = linkify(@announcement.text)

app/views/user_mailer/announcement_published.text.erb

@@ -0,0 +1,7 @@
+<%= t('user_mailer.announcement_published.title') %>
+
+===
+
+<%= t('user_mailer.announcement_published.description', domain: site_hostname) %>
+
+<%= @announcement.text %>

app/workers/admin/distribute_announcement_notification_worker.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class Admin::DistributeAnnouncementNotificationWorker
+  include Sidekiq::Worker
+
+  def perform(announcement_id)
+    announcement = Announcement.find(announcement_id)
+
+    announcement.scope_for_notification.find_each do |user|
+      UserMailer.announcement_published(user, announcement).deliver_later!
+    end
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end

config/locales/en.yml

@@ -309,6 +309,7 @@ en:
       title: Audit log
       unavailable_instance: "(domain name unavailable)"
     announcements:
+      back: Back to announcements
       destroyed_msg: Announcement successfully deleted!
       edit:
         title: Edit announcement
@@ -317,6 +318,9 @@ en:
       new:
         create: Create announcement
         title: New announcement
+      preview:
+        explanation_html: 'The email will be sent to <strong>%{display_count} users</strong>. The following text will be included in the e-mail:'
+        title: Preview announcement notification
       publish: Publish
       published_msg: Announcement successfully published!
       scheduled_for: Scheduled for %{time}
@@ -1905,6 +1909,10 @@ en:
     recovery_instructions_html: If you ever lose access to your phone, you can use one of the recovery codes below to regain access to your account. <strong>Keep the recovery codes safe</strong>. For example, you may print them and store them with other important documents.
     webauthn: Security keys
   user_mailer:
+    announcement_published:
+      description: 'The administrators of %{domain} are making an announcement:'
+      subject: Service announcement
+      title: "%{domain} service announcement"
     appeal_approved:
       action: Account Settings
       explanation: The appeal of the strike against your account on %{strike_date} that you submitted on %{appeal_date} has been approved. Your account is once again in good standing.

config/routes/admin.rb

@@ -50,6 +50,10 @@ namespace :admin do
       post :publish
       post :unpublish
     end
+
+    resource :preview, only: [:show], module: :announcements
+    resource :test, only: [:create], module: :announcements
+    resource :distribution, only: [:create], module: :announcements
   end
 
   with_options to: redirect('/admin/settings/branding') do

db/migrate/20250221143646_add_notification_sent_at_to_announcements.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddNotificationSentAtToAnnouncements < ActiveRecord::Migration[8.0]
+  def change
+    add_column :announcements, :notification_sent_at, :datetime
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_01_29_144813) do
+ActiveRecord::Schema[8.0].define(version: 2025_02_21_143646) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
 
@@ -258,6 +258,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_01_29_144813) do
     t.datetime "updated_at", precision: nil, null: false
     t.datetime "published_at", precision: nil
     t.bigint "status_ids", array: true
+    t.datetime "notification_sent_at"
   end
 
   create_table "annual_report_statuses_per_account_counts", force: :cascade do |t|

spec/mailers/user_mailer_spec.rb

@@ -317,4 +317,16 @@ RSpec.describe UserMailer do
         .and(have_body_text(I18n.t('user_mailer.terms_of_service_changed.changelog')))
     end
   end
+
+  describe '#announcement_published' do
+    let(:announcement) { Fabricate :announcement }
+    let(:mail) { described_class.announcement_published(receiver, announcement) }
+
+    it 'renders announcement_published mail' do
+      expect(mail)
+        .to be_present
+        .and(have_subject(I18n.t('user_mailer.announcement_published.subject')))
+        .and(have_body_text(I18n.t('user_mailer.announcement_published.description', domain: Rails.configuration.x.local_domain)))
+    end
+  end
 end

spec/workers/admin/distribute_announcement_notification_worker_spec.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Admin::DistributeAnnouncementNotificationWorker do
+  let(:worker) { described_class.new }
+
+  describe '#perform' do
+    context 'with missing record' do
+      it 'runs without error' do
+        expect { worker.perform(nil) }.to_not raise_error
+      end
+    end
+
+    context 'with valid announcement' do
+      let(:announcement) { Fabricate(:announcement) }
+      let!(:user) { Fabricate :user, confirmed_at: 3.days.ago }
+
+      it 'sends the announcement via email', :inline_jobs do
+        emails = capture_emails { worker.perform(announcement.id) }
+
+        expect(emails.size)
+          .to eq(1)
+        expect(emails.first)
+          .to have_attributes(
+            to: [user.email],
+            subject: I18n.t('user_mailer.announcement_published.subject')
+          )
+      end
+    end
+  end
+end