module SimpleRailsConfigurator

# File lib/simple_rails_configurator.rb, line 4
def self.configure!(path=nil)
  path ||= Rails.root.join('config', 'custom')

  files = Dir.glob(File.join(path, '**', '*.{yml,yaml}'))
  files.each{ |file| configure_from_file(file) }
end

# File lib/simple_rails_configurator.rb, line 11
def self.configure_from_file(filename)
  # TODO: Pass down a path prefix and implement "namespaces" based on location?
  yaml = load_config_yaml(filename)

  if is_local?
    override = load_config_yaml("#{filename}.override")
    yaml.merge!(override)
  end

  name = File.basename(filename).rpartition('.')[0]
  Rails.application.config.send("#{name}=".to_sym, yaml)
end

# File lib/simple_rails_configurator.rb, line 35
def self.is_local?
  Rails.env.development? || Rails.env.local?
end

# File lib/simple_rails_configurator.rb, line 24
def self.load_config_yaml(filename)
  if File.exist?(filename)
    config_erb = ERB.new(File.read(filename))
    yaml = YAML.load(config_erb.result)

    return yaml[Rails.env] if yaml.key?(Rails.env)
    return yaml
  end
  return {}
end