require 'hoptoad/v2'

module Hoptoad
  class ApiVersionError < StandardError
    def initialize
      super "Wrong API Version: Expecting 2.0, 2.1, 2.2, 2.3 or 2.4"
    end
  end

  class << self
    def parse_xml!(xml)
      parsed = ActiveSupport::XmlMini.backend.parse(xml)['notice'] || fail(ApiVersionError)
      processor = get_version_processor(parsed['version'])
      processor.process_notice(parsed)
    end

    private def get_version_processor(version)
      case version
      when /2\.[01234]/ then Hoptoad::V2
      else; fail ApiVersionError
      end
    end
  end
end