#
# Author:: Siddheshwar More (<siddheshwar.more@clogeny.com>)
# Author:: Kaustubh Deorukhkar (<kaustubh@clogeny.com>)
# Copyright:: Copyright (c) 2013 Chef Software, Inc.
#

require 'chef/knife/cloud/fog/service'

class Chef
  class Knife
    class Cloud
      class OpenstackService < FogService

        def initialize(options = {})
          Chef::Log.debug("openstack_username #{Chef::Config[:knife][:openstack_username]}")
          Chef::Log.debug("openstack_auth_url #{Chef::Config[:knife][:openstack_auth_url]}")
          Chef::Log.debug("openstack_tenant #{Chef::Config[:knife][:openstack_tenant]}")
          Chef::Log.debug("openstack_endpoint_type #{Chef::Config[:knife][:openstack_endpoint_type] || 'publicURL' }")
          Chef::Log.debug("openstack_insecure #{Chef::Config[:knife][:openstack_insecure].to_s}")
          Chef::Log.debug("openstack_region #{Chef::Config[:knife][:openstack_region].to_s}")

          super(options.merge({
                              :auth_params => {
                                :provider => 'OpenStack',
                                :openstack_username => Chef::Config[:knife][:openstack_username],
                                :openstack_api_key => Chef::Config[:knife][:openstack_password],
                                :openstack_auth_url => Chef::Config[:knife][:openstack_auth_url],
                                :openstack_endpoint_type => Chef::Config[:knife][:openstack_endpoint_type],
                                :openstack_tenant => Chef::Config[:knife][:openstack_tenant],
                                :openstack_region => Chef::Config[:knife][:openstack_region],
                                :connection_options => {
                                  :ssl_verify_peer => !Chef::Config[:knife][:openstack_insecure]
                                }
                }}))
        end

        # add alternate user defined api_endpoint value.
        def add_api_endpoint
          @auth_params.merge!({:openstack_auth_url => Chef::Config[:knife][:api_endpoint]}) unless Chef::Config[:knife][:api_endpoint].nil?
        end

        def get_server(search_term)
          begin
            if server = connection.servers.get(search_term)
              return server
            end

            if servers = connection.servers.all(:name => search_term)
              if servers.length > 1
                error_message = "Multiple server matches found for '#{search_term}', use an instance_id to be more specific."
                ui.fatal(error_message)
                raise CloudExceptions::ValidationError, error_message
              else
                servers.first
              end
            end
          rescue Excon::Errors::BadRequest => e
            handle_excon_exception(CloudExceptions::KnifeCloudError, e)
          end
        end
      end
    end
  end
end