#--
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright 2008-2016, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# 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/template_finder"
require "chef/provider/file"
require "chef/deprecation/provider/template"
require "chef/deprecation/warnings"

class Chef
  class Provider
    class Template < Chef::Provider::File
      provides :template

      extend Chef::Deprecation::Warnings
      include Chef::Deprecation::Provider::Template
      add_deprecation_warnings_for(Chef::Deprecation::Provider::Template.instance_methods)

      def initialize(new_resource, run_context)
        @content_class = Chef::Provider::Template::Content
        super
      end

      def load_current_resource
        @current_resource = Chef::Resource::Template.new(@new_resource.name)
        super
      end

      def define_resource_requirements
        super

        requirements.assert(:create, :create_if_missing) do |a|
          a.assertion { ::File.exists?(content.template_location) }
          a.failure_message "Template source #{content.template_location} could not be found."
          a.whyrun "Template source #{content.template_location} does not exist. Assuming it would have been created."
          a.block_action!
        end
      end

      private

      def managing_content?
        return true if @new_resource.checksum
        return true if !@new_resource.source.nil? && @action != :create_if_missing
        false
      end

    end
  end
end