if defined?(Airbrake) && ENV['AIRBRAKE_PROJECT_ID'].present? && ENV['AIRBRAKE_PROJECT_KEY'].present?
  # Airbrake is an online tool that provides robust exception tracking in your Rails
  # applications. In doing so, it allows you to easily review errors, tie an error
  # to an individual piece of code, and trace the cause back to recent
  # changes. Airbrake enables for easy categorization, searching, and prioritization
  # of exceptions so that when errors occur, your team can quickly determine the
  # root cause.
  #
  # Configuration details:
  # https://github.com/airbrake/airbrake-ruby#configuration
  Airbrake.configure do |c|
    # You must set both project_id & project_key. To find your project_id and
    # project_key navigate to your project's General Settings and copy the values
    # from the right sidebar.
    # https://github.com/airbrake/airbrake-ruby#project_id--project_key
    c.project_id = ENV['AIRBRAKE_PROJECT_ID']
    c.project_key = ENV['AIRBRAKE_PROJECT_KEY']

    # Configures the root directory of your project. Expects a String or a
    # Pathname, which represents the path to your project. Providing this option
    # helps us to filter out repetitive data from backtrace frames and link to
    # GitHub files from our dashboard.
    # https://github.com/airbrake/airbrake-ruby#root_directory
    c.root_directory = Rails.root

    # By default, Airbrake Ruby outputs to STDOUT. In Rails apps it makes sense to
    # use the Rails' logger.
    # https://github.com/airbrake/airbrake-ruby#logger
    c.logger = Rails.logger

    # Configures the environment the application is running in. Helps the Airbrake
    # dashboard to distinguish between exceptions occurring in different
    # environments.
    # NOTE: This option must be set in order to make the 'ignore_environments'
    # option work.
    # https://github.com/airbrake/airbrake-ruby#environment
    c.environment = Rails.env

    # Setting this option allows Airbrake to filter exceptions occurring in
    # unwanted environments such as :test.
    # NOTE: This option *does not* work if you don't set the 'environment' option.
    # https://github.com/airbrake/airbrake-ruby#ignore_environments
    c.ignore_environments = %w[test]

    # A list of parameters that should be filtered out of what is sent to
    # Airbrake. By default, all "password" attributes will have their contents
    # replaced.
    # https://github.com/airbrake/airbrake-ruby#blacklist_keys
    c.blacklist_keys = [/password/i, /authorization/i]

    # Alternatively, you can integrate with Rails' filter_parameters.
    # Read more: https://goo.gl/gqQ1xS
    # c.blacklist_keys = Rails.application.config.filter_parameters
  end

  # A filter that collects request body information. Enable it if you are sure you
  # don't send sensitive information to Airbrake in your body (such as passwords).
  # https://github.com/airbrake/airbrake#requestbodyfilter
  # Airbrake.add_filter(Airbrake::Rack::RequestBodyFilter.new)

  # A filter method that chooses which errors to ignore before sending them to
  # Airbrake. This can be based on type, message, file, region or any other part
  # of the error's JSON
  Airbrake.add_filter do |notice|
    notice.ignore! if notice[:errors].any? { |error| error[:type] == 'ActionController::RoutingError' }
  end

  # If you want to convert your log messages to Airbrake errors, we offer an
  # integration with the Logger class from stdlib.
  # https://github.com/airbrake/airbrake#logger
  # Rails.logger = Airbrake::AirbrakeLogger.new(Rails.logger)
else
  puts 'WARNING: Airbrake environment variables are not set - no Airbrake logging will occur.'
end