fix: order for canned response (#6400)

* feat: order canned response

Order canned responses by short_code match first and then with content

* Added specs

---------

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/models/canned_response.rb

@@ -17,4 +17,14 @@ class CannedResponse < ApplicationRecord
   validates_uniqueness_of :short_code, 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