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# frozen_string_literal: true
class FeatureFlagUserXidsValidator < ActiveModel::EachValidator
USERXID_MAX_LENGTH = 256
def validate_each(record, attribute, value)
self.class.validate_user_xids(record, attribute, value, attribute)
end
class << self
def validate_user_xids(record, attribute, user_xids, error_message_attribute_name)
unless user_xids.is_a?(String) && !user_xids.match(/[\n\r\t]|,,/) && valid_xids?(user_xids.split(","))
record.errors.add(attribute,
"#{error_message_attribute_name} must be a string of unique comma separated values each #{USERXID_MAX_LENGTH} characters or less")
end
end
private
def valid_xids?(user_xids)
user_xids.uniq.length == user_xids.length &&
user_xids.all? { |xid| valid_xid?(xid) }
end
def valid_xid?(user_xid)
user_xid.present? &&
user_xid.strip == user_xid &&
user_xid.length <= USERXID_MAX_LENGTH
end
end
end
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