Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/models/canned_response.rb

@@ -0,0 +1,30 @@
+# == Schema Information
+#
+# Table name: canned_responses
+#
+#  id         :integer          not null, primary key
+#  content    :text
+#  short_code :string
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  account_id :integer          not null
+#
+
+class CannedResponse < ApplicationRecord
+  validates :content, presence: true
+  validates :short_code, presence: true
+  validates :account, presence: true
+  validates :short_code, uniqueness: { scope: :account_id }
+
+  belongs_to :account
+
+  scope :order_by_search, lambda { |search|
+    short_code_starts_with = sanitize_sql_array(['WHEN short_code ILIKE ? THEN 1', "#{search}%"])
+    short_code_like = sanitize_sql_array(['WHEN short_code ILIKE ? THEN 0.5', "%#{search}%"])
+    content_like = sanitize_sql_array(['WHEN content ILIKE ? THEN 0.2', "%#{search}%"])
+
+    order_clause = "CASE #{short_code_starts_with} #{short_code_like} #{content_like} ELSE 0 END"
+
+    order(Arel.sql(order_clause) => :desc)
+  }
+end