extract email assets

app/models/account.rb

@@ -24,6 +24,7 @@ class Account < ApplicationRecord
   has_many :encrypted_configs, dependent: :destroy
   has_many :account_configs, dependent: :destroy
   has_many :email_messages, dependent: :destroy
+  has_many :email_message_assets, dependent: :destroy
   has_many :templates, dependent: :destroy
   has_many :template_folders, dependent: :destroy
   has_one :default_template_folder, -> { where(name: TemplateFolder::DEFAULT_NAME) },

app/models/email_message.rb

@@ -33,6 +33,15 @@ class EmailMessage < ApplicationRecord
 
   before_validation :set_sha1, on: :create
 
+  def normalized_body
+    @normalized_body ||=
+      if body&.include?(EmailMessages::ASSET_PREFIX)
+        EmailMessages.rebuild_body_with_assets(account_id, body)
+      else
+        body
+      end
+  end
+
   def set_sha1
     self.sha1 = Digest::SHA1.hexdigest({ subject:, body: }.to_json)
   end

app/models/email_message_asset.rb

@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: email_message_assets
+#
+#  id         :bigint           not null, primary key
+#  data       :text             not null
+#  sha1       :string           not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  account_id :bigint           not null
+#
+# Indexes
+#
+#  index_email_message_assets_on_account_id_and_sha1  (account_id,sha1) UNIQUE
+#
+# Foreign Keys
+#
+#  fk_rails_...  (account_id => accounts.id)
+#
+class EmailMessageAsset < ApplicationRecord
+  belongs_to :account
+
+  before_validation :set_sha1, on: :create
+
+  def set_sha1
+    self.sha1 = Digest::SHA1.hexdigest(data.to_s)
+  end
+end