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- # frozen_string_literal: true
- class ExistingUsernameValidator < ActiveModel::EachValidator
- def validate_each(record, attribute, value)
- @value = value
- return if @value.blank?
- if options[:multiple]
- record.errors.add(attribute, not_found_multiple_message) if usernames_with_no_accounts.any?
- elsif usernames_with_no_accounts.any? || usernames_and_domains.size > 1
- record.errors.add(attribute, not_found_message)
- end
- end
- private
- def usernames_and_domains
- @value.split(',').filter_map do |string|
- username, domain = string.strip.gsub(/\A@/, '').split('@', 2)
- domain = nil if TagManager.instance.local_domain?(domain)
- next if username.blank?
- [string, username, domain]
- end
- end
- def usernames_with_no_accounts
- usernames_and_domains.filter_map do |(string, username, domain)|
- string unless Account.find_remote(username, domain)
- end
- end
- def not_found_multiple_message
- I18n.t('existing_username_validator.not_found_multiple', usernames: usernames_with_no_accounts.join(', '))
- end
- def not_found_message
- I18n.t('existing_username_validator.not_found')
- end
- end
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