#
# Author:: Jason J. W. Williams (<williamsjj@digitar.com>)
# Author:: Stephen Nelson-Smith (<sns@chef.io>)
# Copyright:: Copyright (c) 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 "open3"
require_relative "../package"
require_relative "../../resource/package"

class Chef
  class Provider
    class Package
      class Ips < Chef::Provider::Package

        provides :package, platform: %w{openindiana omnios solaris2}, target_mode: true
        provides :ips_package, target_mode: true

        attr_accessor :virtual

        def define_resource_requirements
          super

          requirements.assert(:all_actions) do |a|
            a.assertion { !@candidate_version.nil? }
            a.failure_message Chef::Exceptions::Package, "Package #{new_resource.package_name} not found"
            a.whyrun "Assuming package #{new_resource.package_name} would have been made available."
          end

          requirements.assert(:all_actions) do |a|
            a.assertion { !new_resource.environment }
            a.failure_message Chef::Exceptions::Package, "The environment property is not supported for package resources on this platform"
          end
        end

        def get_current_version
          shell_out("pkg", "info", new_resource.package_name).stdout.each_line do |line|
            return $1.split[0] if line =~ /^\s+Version: (.*)/
          end
          nil
        end

        def get_candidate_version
          shell_out!("pkg", "info", "-r", new_resource.package_name).stdout.each_line do |line|
            return $1.split[0] if line =~ /Version: (.*)/
          end
          nil
        end

        def load_current_resource
          @current_resource = Chef::Resource::IpsPackage.new(new_resource.name)
          current_resource.package_name(new_resource.package_name)
          logger.trace("Checking package status for #{new_resource.package_name}")
          current_resource.version(get_current_version)
          @candidate_version = get_candidate_version
          current_resource
        end

        def install_package(name, version)
          command = [ "pkg", options, "install", "-q" ]
          command << "--accept" if new_resource.accept_license
          command << "#{name}@#{version}"
          shell_out!(command)
        end

        def upgrade_package(name, version)
          install_package(name, version)
        end

        def remove_package(name, version)
          package_name = "#{name}@#{version}"
          shell_out!( "pkg", options, "uninstall", "-q", package_name )
        end
      end
    end
  end
end
