Add ability to delete Maybe account (#698)

* Build out user deactivation and purging workflows

* Add i18n translations for user deletion

* Add tests for user deletion

* Fix lint issue

app/controllers/settings/profiles_controller.rb

@@ -17,6 +17,15 @@ class Settings::ProfilesController < ApplicationController
     end
   end
 
+  def destroy
+    if Current.user.deactivate
+      logout
+      redirect_to root_path, notice: t(".success")
+    else
+      redirect_to settings_profile_path, alert: Current.user.errors.full_messages.to_sentence
+    end
+  end
+
   private
 
   def user_params

app/javascript/controllers/application.js

@@ -10,7 +10,7 @@ Turbo.setConfirmMethod((message) => {
   const dialog = document.getElementById("turbo-confirm");
 
   try {
-    const { title, body, accept } = JSON.parse(message);
+    const { title, body, accept, acceptClass } = JSON.parse(message);
 
     if (title) {
       document.getElementById("turbo-confirm-title").innerHTML = title;
@@ -23,6 +23,10 @@ Turbo.setConfirmMethod((message) => {
     if (accept) {
       document.getElementById("turbo-confirm-accept").innerHTML = accept;
     }
+
+    if (acceptClass) {
+      document.getElementById("turbo-confirm-accept").className = acceptClass;
+    }
   } catch (e) {
     document.getElementById("turbo-confirm-title").innerText = message;
   }

app/jobs/user_purge_job.rb

@@ -0,0 +1,7 @@
+class UserPurgeJob < ApplicationJob
+  queue_as :default
+
+  def perform(user)
+    user.purge
+  end
+end

app/models/user.rb

@@ -38,4 +38,40 @@ class User < ApplicationRecord
   def has_seen_upgrade_alert?(upgrade)
     last_alerted_upgrade_commit_sha == upgrade.commit_sha
   end
+
+  # Deactivation
+  validate :can_deactivate, if: -> { active_changed? && !active }
+  after_update_commit :purge_later, if: -> { saved_change_to_active?(from: true, to: false) }
+
+  def deactivate
+    update active: false, email: deactivated_email
+  end
+
+  def can_deactivate
+    if admin? && family.users.count > 1
+      errors.add(:base, I18n.t("activerecord.errors.user.cannot_deactivate_admin_with_other_users"))
+    end
+  end
+
+  def purge_later
+    UserPurgeJob.perform_later(self)
+  end
+
+  def purge
+    if last_user_in_family?
+      family.destroy
+    else
+      destroy
+    end
+  end
+
+  private
+
+  def last_user_in_family?
+    family.users.count == 1
+  end
+
+  def deactivated_email
+    email.gsub(/@/, "-deactivated-#{SecureRandom.uuid}@")
+  end
 end

app/views/settings/profiles/show.html.erb

@@ -61,9 +61,16 @@
           <h3 class="font-medium text-gray-900"><%= t(".delete_account") %></h3>
           <p class="text-gray-500 text-sm"><%= t(".delete_account_warning") %></p>
         </div>
-        <button disabled class="bg-red-500 text-white text-sm font-medium rounded-lg px-3 py-2 cursor-not-allowed">
-          <%= t(".delete_account") %>
-        </button>
+        <%=
+          button_to t(".delete_account"), settings_profile_path, method: :delete,
+            class: "bg-red-500 text-white text-sm font-medium rounded-lg px-3 py-2",
+            data: { turbo_confirm: {
+              title: t(".confirm_delete.title"),
+              body: t(".confirm_delete.body"),
+              accept: t(".delete_account"),
+              acceptClass: "w-full bg-red-500 text-white rounded-xl text-center p-[10px] border mb-2"
+            }}
+        %>
       </div>
     <% end %>
   </div>

app/views/shared/_confirm_modal.html.erb

@@ -11,6 +11,7 @@
         <%= t(".body_html") %>
       </div>
     </div>
-    <button id="turbo-confirm-accept" class="w-full text-red-600 rounded-xl text-center p-[10px] border" value="confirm"><%= t(".accept") %></button>
+    <button id="turbo-confirm-accept" class="w-full text-red-600 rounded-xl text-center p-[10px] border mb-2" value="confirm"><%= t(".accept") %></button>
+    <button class="w-full rounded-xl text-center p-[10px] border" value="cancel"><%= t(".cancel") %></button>
   </form>
 </dialog>