module Adyen

  # Loads configuration settings from a Hash.
  #
  # This method is called recursively for every module. The second
  # argument is used to denote the current working module.
  def self.load_config(hash, mod = Adyen)
    hash.each do |key, value|
      if key.to_s =~ /^[a-z]/ && mod.respond_to?(:"#{key}=")
        mod.send(:"#{key}=", value)
      elsif key.to_s =~ /^[A-Z]/
        begin
          submodule = mod.const_get(key)
        rescue LoadError => e
          raise "Unknown Adyen module to configure: #{mod.name}::#{key}"
        end
        self.load_config(value, submodule)
      else
        raise "Unknown configuration variable: '#{key}' for #{mod}"
      end
    end
  end

  # The Rails environment for which to use to Adyen "live" environment.
  LIVE_RAILS_ENVIRONMENTS = ['production']

  # Setter voor the current Adyen environment.
  # Must be either 'test' or 'live'
  def self.environment=(env)
    @environment = env
  end

  # Returns the current Adyen environment.
  # Returns either 'test' or 'live'.
  def self.environment(override = nil)
    override || @environment || Adyen.autodetect_environment
  end

  # Autodetects the Adyen environment based on the RAILS_ENV constant
  def self.autodetect_environment
    (defined?(RAILS_ENV) && Adyen::LIVE_RAILS_ENVIRONMENTS.include?(RAILS_ENV.to_s.downcase)) ? 'live' : 'test'
  end

  # Loads submodules on demand, so that dependencies are not required.
  def self.const_missing(sym)
    require "adyen/#{sym.to_s.downcase}"
    return Adyen.const_get(sym)
  rescue Exception => e
    super(sym)
  end
end

require 'adyen/encoding'
require 'adyen/formatter'