Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/builders/account_builder.rb

@@ -0,0 +1,77 @@
+# frozen_string_literal: true
+
+class AccountBuilder
+  include CustomExceptions::Account
+  pattr_initialize [:account_name, :email!, :confirmed, :user, :user_full_name, :user_password, :super_admin, :locale]
+
+  def perform
+    if @user.nil?
+      validate_email
+      validate_user
+    end
+    ActiveRecord::Base.transaction do
+      @account = create_account
+      @user = create_and_link_user
+    end
+    [@user, @account]
+  rescue StandardError => e
+    Rails.logger.debug e.inspect
+    raise e
+  end
+
+  private
+
+  def user_full_name
+    # the empty string ensures that not-null constraint is not violated
+    @user_full_name || ''
+  end
+
+  def account_name
+    # the empty string ensures that not-null constraint is not violated
+    @account_name || ''
+  end
+
+  def validate_email
+    Account::SignUpEmailValidationService.new(@email).perform
+  end
+
+  def validate_user
+    if User.exists?(email: @email)
+      raise UserExists.new(email: @email)
+    else
+      true
+    end
+  end
+
+  def create_account
+    @account = Account.create!(name: account_name, locale: I18n.locale)
+    Current.account = @account
+  end
+
+  def create_and_link_user
+    if @user.present? || create_user
+      link_user_to_account(@user, @account)
+      @user
+    else
+      raise UserErrors.new(errors: @user.errors)
+    end
+  end
+
+  def link_user_to_account(user, account)
+    AccountUser.create!(
+      account_id: account.id,
+      user_id: user.id,
+      role: AccountUser.roles['administrator']
+    )
+  end
+
+  def create_user
+    @user = User.new(email: @email,
+                     password: user_password,
+                     password_confirmation: user_password,
+                     name: user_full_name)
+    @user.type = 'SuperAdmin' if @super_admin
+    @user.confirm if @confirmed
+    @user.save!
+  end
+end