improve registration and add oauth

app/controllers/accounts_controller.rb

@@ -40,6 +40,8 @@ class AccountsController < ApplicationController
   end
 
   def app_url_params
+    return {} if params[:encrypted_config].blank?
+
     params.require(:encrypted_config).permit(:value)
   end
 end

app/controllers/dashboard_controller.rb

@@ -4,6 +4,7 @@ class DashboardController < ApplicationController
   skip_before_action :authenticate_user!, only: %i[index]
 
   def index
+    return redirect_to Docuseal::PRODUCT_URL, allow_other_host: true if Docuseal.multitenant? && !signed_in?
     return render 'pages/landing' unless signed_in?
 
     templates = current_account.templates.active.preload(:author).order(id: :desc)

app/controllers/omniauth_callbacks_controller.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class OmniauthCallbacksController < Devise::OmniauthCallbacksController
+  def google_oauth2
+    @user = Users.from_omniauth(request.env['omniauth.auth'])
+
+    if @user.persisted?
+      flash[:notice] = I18n.t('devise.omniauth_callbacks.success', kind: 'Google')
+
+      sign_in_and_redirect @user, event: :authentication
+    else
+      redirect_to new_registration_path(oauth_callback: true, user: @user.slice(:email, :first_name, :last_name)),
+                  notice: 'Please complete registration with Google auth'
+    end
+  end
+end

app/controllers/registrations_controller.rb

@@ -1,6 +1,16 @@
 # frozen_string_literal: true
 
 class RegistrationsController < Devise::RegistrationsController
+  prepend_before_action :require_no_authentication, only: [:show]
+
+  def show; end
+
+  def create
+    super
+
+    Accounts.create_default_template(resource.account) if resource.account.persisted?
+  end
+
   private
 
   def build_resource(_hash = {})
@@ -8,17 +18,21 @@ class RegistrationsController < Devise::RegistrationsController
     account.timezone = Accounts.normalize_timezone(account.timezone)
 
     self.resource = account.users.new(user_params)
+
+    account.name ||= "#{resource.full_name}'s Company" if params[:action] == 'create'
   end
 
   def user_params
     return {} if params[:user].blank?
 
-    params.require(:user).permit(:first_name, :last_name, :email, :password)
+    params.require(:user).permit(:first_name, :last_name, :email, :password).compact_blank.tap do |attrs|
+      attrs[:password] ||= SecureRandom.hex if params[:action] == 'create'
+    end
   end
 
   def account_params
     return {} if params[:account].blank?
 
-    params.require(:account).permit(:name, :timezone)
+    params.require(:account).permit(:name, :timezone).compact_blank
   end
 end

app/controllers/sessions_controller.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class SessionsController < Devise::SessionsController
+  def create
+    if Docuseal.multitenant? && !User.exists?(email: sign_in_params[:email])
+      return redirect_to new_registration_path(sign_up: true, user: sign_in_params.slice(:email)),
+                         notice: 'Create a new account'
+    end
+
+    super
+  end
+end