module Dryad

# File lib/dryad.rb, line 16
def configure
  yield(configuration)
end

# File lib/dryad.rb, line 20
def load_config
  config_file = Pathname.new(Rails.root.join("config/dryad.yml"))

  config = if config_file && config_file.exist?
    require "yaml"
    require "erb"
    YAML.load(ERB.new(config_file.read).result) || {}
  else
    raise "Could not load dryad configuration. No such file - #{config_file}"
  end

  config
rescue Psych::SyntaxError => e
  raise "YAML syntax error occurred while parsing #{config_file}. " \
        "Please note that YAML must be consistently indented using spaces. Tabs are not allowed. " \
        "Error: #{e.message}"
rescue => e
  raise e, "Cannot load dryad configuration:\n#{e.message}", e.backtrace
end

# File lib/dryad.rb, line 40
def register_services
  service = Dryad::Consul.build_service(
    Dryad.configuration.namespace,
    Dryad.configuration.group,
    Dryad.configuration.service
  )
  Dryad::Consul::ServiceRegistry.instance.register(service)
end