module Captivus
  class Payload
    def initialize(exception)
      if exception.respond_to?(:class) && exception.class.respond_to?(:name) && exception.respond_to?(:message)
        @as_json = {
          'event' => {
            'type' => exception.class.name,
            'message' => exception.message,
            'timestamp' => Time.now.utc.to_s
          },
          'backtrace' => Backtrace.new(exception).as_json
        }
      else
        raise ArgumentError, "Unexpected exception: #{exception.inspect}"
      end
    end

    attr_reader :as_json
  end
end