module Elasticonf

# File lib/elasticonf.rb, line 15
def config
  @config ||= Config.new
end

# File lib/elasticonf.rb, line 19
def configure
  yield config
end

# File lib/elasticonf.rb, line 59
def configure_and_load!
  configure { |config| yield(config) }
  load!
end

# File lib/elasticonf.rb, line 23
def load!(env = nil)
      config_file = config.config_root.join(config.config_file + '.yml')
  config.env = env if env

  unless File.exists?(config_file)
    raise "Config file #{config_file} not found. Cannot continue"
  end

  loader = Loader[YAML.load_file(config_file)]

  env_config_file = config.config_root.join(config.config_file, "#{config.env}.yml")
  if File.exists?(env_config_file)
    loader = loader.deep_merge(Loader[YAML.load_file(env_config_file)])
  end

  local_config_file = config.config_root.join(config.config_file + '.local.yml')
  if File.exists?(local_config_file)
    loader = loader.deep_merge(Loader[YAML.load_file(local_config_file)])
  end

  if Kernel.const_defined?(config.const_name)
    config.raise_if_already_initialized_constant ?
      raise("Cannot set constant #{config.const_name} because it is already initialized") :
      Kernel.send(:remove_const, config.const_name)
  end

  Kernel.const_set config.const_name, loader
end

# File lib/elasticonf.rb, line 52
def reload!
  if Kernel.const_defined?(config.const_name)
    Kernel.send :remove_const, config.const_name
  end
  load!
end

# File lib/elasticonf.rb, line 11
def root
  @root ||= Pathname.new(File.expand_path(File.join(File.dirname(__FILE__), '..')))
end