1 files changed, 32 insertions, 0 deletions
diff --git a/app/models/admin/import.rb b/app/models/admin/import.rb
new file mode 100644
index 000000000..79c0722d5
--- /dev/null
+++ b/app/models/admin/import.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+# A non-activerecord helper class for csv upload
+class Admin::Import
+  include ActiveModel::Model
+
+  ROWS_PROCESSING_LIMIT = 20_000
+
+  attr_accessor :data
+
+  validates :data, presence: true
+  validate :validate_data
+
+  def data_file_name
+    data.original_filename
+  end
+
+  private
+
+  def validate_data
+    return if data.blank?
+
+    csv_data = CSV.read(data.path, encoding: 'UTF-8')
+
+    row_count  = csv_data.size
+    row_count -= 1 if csv_data.first&.first == '#domain'
+
+    errors.add(:data, I18n.t('imports.errors.over_rows_processing_limit', count: ROWS_PROCESSING_LIMIT)) if row_count > ROWS_PROCESSING_LIMIT
+  rescue CSV::MalformedCSVError => e
+    errors.add(:data, I18n.t('imports.errors.invalid_csv_file', error: e.message))
+  end
+end