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# frozen_string_literal: true
class ImportValidator < ActiveModel::Validator
KNOWN_HEADERS = [
'Account address',
'#domain',
'#uri',
].freeze
def validate(import)
return if import.type.blank? || import.data.blank?
# We parse because newlines could be part of individual rows. This
# runs on create so we should be reading the local file here before
# it is uploaded to object storage or moved anywhere...
csv_data = CSV.parse(import.data.queued_for_write[:original].read)
row_count = csv_data.size
row_count -= 1 if KNOWN_HEADERS.include?(csv_data.first&.first)
import.errors.add(:data, I18n.t('imports.errors.over_rows_processing_limit', count: ImportService::ROWS_PROCESSING_LIMIT)) if row_count > ImportService::ROWS_PROCESSING_LIMIT
case import.type
when 'following'
validate_following_import(import, row_count)
end
end
private
def validate_following_import(import, row_count)
base_limit = FollowLimitValidator.limit_for_account(import.account)
limit = begin
if import.overwrite?
base_limit
else
base_limit - import.account.following_count
end
end
import.errors.add(:data, I18n.t('users.follow_limit_reached', limit: base_limit)) if row_count > limit
end
end