Add terms of service (#33055)

app/models/admin/action_log_filter.rb

@@ -57,6 +57,7 @@ class Admin::ActionLogFilter
     enable_relay: { target_type: 'Relay', action: 'enable' }.freeze,
     memorialize_account: { target_type: 'Account', action: 'memorialize' }.freeze,
     promote_user: { target_type: 'User', action: 'promote' }.freeze,
+    publish_terms_of_service: { target_type: 'TermsOfService', action: 'publish' }.freeze,
     remove_avatar_user: { target_type: 'User', action: 'remove_avatar' }.freeze,
     reopen_report: { target_type: 'Report', action: 'reopen' }.freeze,
     resend_user: { target_type: 'User', action: 'resend' }.freeze,

app/models/terms_of_service.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: terms_of_services
+#
+#  id                   :bigint(8)        not null, primary key
+#  changelog            :text             default(""), not null
+#  notification_sent_at :datetime
+#  published_at         :datetime
+#  text                 :text             default(""), not null
+#  created_at           :datetime         not null
+#  updated_at           :datetime         not null
+#
+class TermsOfService < ApplicationRecord
+  scope :published, -> { where.not(published_at: nil).order(published_at: :desc) }
+  scope :live, -> { published.limit(1) }
+  scope :draft, -> { where(published_at: nil).order(id: :desc).limit(1) }
+
+  validates :text, presence: true
+  validates :changelog, presence: true, if: -> { published? }
+
+  def published?
+    published_at.present?
+  end
+
+  def notification_sent?
+    notification_sent_at.present?
+  end
+
+  def scope_for_notification
+    User.confirmed.joins(:account).merge(Account.without_suspended).where(created_at: (..published_at))
+  end
+end

app/models/terms_of_service/generator.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+class TermsOfService::Generator
+  include ActiveModel::Model
+
+  TEMPLATE = Rails.root.join('config', 'templates', 'terms-of-service.md').read
+
+  VARIABLES = %i(
+    admin_email
+    arbitration_address
+    arbitration_website
+    dmca_address
+    dmca_email
+    domain
+    jurisdiction
+  ).freeze
+
+  attr_accessor(*VARIABLES)
+
+  validates(*VARIABLES, presence: true)
+
+  def render
+    format(TEMPLATE, VARIABLES.index_with { |key| public_send(key) })
+  end
+end