require 'pathname'

module Stove
  autoload :Artifactory, 'stove/artifactory'
  autoload :Supermarket, 'stove/supermarket'
  autoload :Config,      'stove/config'
  autoload :Cookbook,    'stove/cookbook'
  autoload :Cli,         'stove/cli'
  autoload :Error,       'stove/error'
  autoload :Filter,      'stove/filter'
  autoload :Mash,        'stove/mash'
  autoload :Packager,    'stove/packager'
  autoload :Runner,      'stove/runner'
  autoload :Util,        'stove/util'
  autoload :Validator,   'stove/validator'
  autoload :VERSION,     'stove/version'
  autoload :Log,         'stove/log'

  module Middleware
    autoload :ChefAuthentication, 'stove/middlewares/chef_authentication'
    autoload :Exceptions,         'stove/middlewares/exceptions'
  end

  module Mixin
    autoload :Insideable,   'stove/mixins/insideable'
    autoload :Instanceable, 'stove/mixins/instanceable'
    autoload :Optionable,   'stove/mixins/optionable'
    autoload :Validatable,  'stove/mixins/validatable'
  end

  module Plugin
    autoload :Artifactory, 'stove/plugins/artifactory'
    autoload :Base,        'stove/plugins/base'
    autoload :Supermarket, 'stove/plugins/supermarket'
    autoload :Git,         'stove/plugins/git'
  end

  #
  # A constant to represent an unset value. +nil+ is too generic and doesn't
  # allow users to specify a value as +nil+. Using this constant, we can
  # safely create +set_or_return+-style methods.
  #
  # @return [Object]
  #
  UNSET_VALUE = Object.new

  #
  # The User-Agent to use for HTTP requests
  #
  # @return [String]
  #
  USER_AGENT = "Stove #{VERSION}"

  class << self
    #
    # The source root of the Stove gem. This is useful when requiring files
    # that are relative to the root of the project.
    #
    # @return [Pathname]
    #
    def root
      @root ||= Pathname.new(File.expand_path('../../', __FILE__))
    end

    #
    # Set the log level.
    #
    # @example Set the log level to :info
    #   Stove.log_level = :info
    #
    # @param [#to_sym] level
    #   the log level to set
    #
    def log_level=(lev)
      Stove::Log.level = lev.to_sym
    end

    #
    # Get the current log level.
    #
    # @return [Symbol]
    #
    def log_level
      Stove::Log.level
    end
  end
end