#
# Copyright 2013-2015, Noah Kantrowitz
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require 'chef/provider'
require 'chef/resource'

require 'poise/utils/resource_provider_mixin'


module Poise
  include Poise::Utils::ResourceProviderMixin
  autoload :Helpers, 'poise/helpers'
  autoload :Provider, 'poise/provider'
  autoload :Resource, 'poise/resource'
  autoload :Subcontext, 'poise/subcontext'
  autoload :Utils, 'poise/utils'
  autoload :VERSION, 'poise/version'
end

# Callable form to allow passing in options:
#   include Poise(ParentResource)
#   include Poise(parent: ParentResource)
#   include Poise(container: true)
def Poise(options={})
  # Allow passing a class as a shortcut
  if options.is_a?(Class)
    options = {parent: options}
  end

  # Create a new anonymous module
  mod = Module.new

  # Fake the name.
  mod.define_singleton_method(:name) do
    super() || 'Poise'
  end

  mod.define_singleton_method(:included) do |klass|
    super(klass)
    # Pull in the main helper to cover most of the needed logic.
    klass.class_exec { include Poise }
    # Set the defined_in values as needed.
    klass.poise_defined!(caller)
    # Resource-specific options.
    if klass < Chef::Resource
      klass.poise_subresource(options[:parent], options[:parent_optional], options[:parent_auto]) if options[:parent]
      klass.poise_subresource_container(options[:container_namespace]) if options[:container]
      klass.poise_fused if options[:fused]
      klass.poise_inversion(options[:inversion_options_resource]) if options[:inversion]
    end
    # Provider-specific options.
    if klass < Chef::Provider
      klass.poise_inversion(options[:inversion], options[:inversion_attribute]) if options[:inversion]
    end
  end

  mod
end