ksylvest/attached

require 'attached/storage/base'
require 'fog'

module Attached
  module Storage
    class Rackspace < Fog

      attr_reader :container
      attr_reader :username
      attr_reader :api_key

      # Create a new interface supporting save and destroy operations.
      #
      # Usage:
      #
      #   Attached::Storage::Rackspace.new()
      #   Attached::Storage::Rackspace.new("rackspace.yml")

      def initialize(credentials)
        super
        credentials = parse(credentials)
        @container    = credentials[:container] || credentials['container']
        @username     = credentials[:username]  || credentials['username']
        @api_key      = credentials[:api_key]   || credentials['api_key']
        raise "'container' must be specified if using 'rackspace' for storage" unless @container
      end

      # Access the host (e.g. https://storage.clouddrive.com/container) for a storage service.
      #
      # Usage:
      #
      #   storage.host

      def host()
        "https://storage.clouddrive.com/#{self.container}/"
      end

    private

      def directory()
        connection.directories.get(self.container) || connection.directories.create(self.defaults.merge(key: self.container))
      end

      def connection
        @connection ||= ::Fog::Storage.new(
          rackspace_username: self.username,
          rackspace_api_key: self.api_key,
          provider: 'Rackspace'
        )
      end

    end
  end
end