################################################################################
#
#      Author: Zachary Patten <zachary@jovelabs.com>
#   Copyright: Copyright (c) 2011-2013 Atalanta Systems Ltd
#     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 'cucumber/chef/providers/aws'
require 'cucumber/chef/providers/vagrant'

module Cucumber
  module Chef

    class ProviderError < Error; end

    class Provider
      attr_accessor :stdout, :stderr, :stdin, :logger

      PROXY_METHODS = %w(create destroy up halt reload status id state username ip port chef_server_api chef_server_webui alive? dead? exists?)

################################################################################

      def initialize(stdout=STDOUT, stderr=STDERR, stdin=STDIN, logger=$logger)
        @stdout, @stderr, @stdin, @logger = stdout, stderr, stdin, logger
        @stdout.sync = true if @stdout.respond_to?(:sync=)

        @provider = case Cucumber::Chef::Config.provider
        when :aws then
          Cucumber::Chef::Provider::AWS.new(@stdout, @stderr, @stdin, @logger)
        when :vagrant then
          Cucumber::Chef::Provider::Vagrant.new(@stdout, @stderr, @stdin, @logger)
        end
      end

################################################################################

      def chef_server_webui
        "http://#{ip}:4040"
      end

      def chef_server_api
        "http://#{ip}:4000"
      end

      def status
        if exists?

          headers = [:provider, :id, :state, :username, :"ip address", :port, :"chef-server api", :"chef-server webui", :"chef-server default user", :"chef-server default password"]
          results = ZTK::Report.new.list([nil], headers) do |noop|

            OpenStruct.new(
              :provider => @provider.class,
              :id => self.id,
              :state => self.state,
              :username => self.username,
              :"ip address" => self.ip,
              :port => self.port,
              :"chef-server api" => self.chef_server_api,
              :"chef-server webui" => self.chef_server_webui,
              :"chef-server default user" => "admin",
              :"chef-server default password" => Cucumber::Chef::Config.chef[:admin_password]
            )
          end
        else
          raise ProviderError, "No test labs exists!"
        end

      rescue Exception => e
        Cucumber::Chef.logger.fatal { e.message }
        Cucumber::Chef.logger.fatal { e.backtrace.join("\n") }
        raise ProviderError, e.message
      end

################################################################################

      def method_missing(method_name, *method_args)
        if Cucumber::Chef::Provider::PROXY_METHODS.include?(method_name.to_s)
          result = @provider.send(method_name.to_sym, *method_args)
          splat = [method_name, *method_args].flatten.compact
          Cucumber::Chef.logger.debug { "Provider: #{splat.inspect}=#{result.inspect}" }
          result
        else
          super(method_name, *method_args)
        end
      end

################################################################################

    end

  end
end

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