#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2009 Opscode, 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/knife'

class Chef
  class Knife
    class ClientCreate < Knife

      deps do
        require 'chef/api_client'
        require 'chef/json_compat'
      end

      option :file,
        :short => "-f FILE",
        :long  => "--file FILE",
        :description => "Write the key to a file"

      option :admin,
        :short => "-a",
        :long  => "--admin",
        :description => "Create the client as an admin",
        :boolean => true

      option :validator,
        :long  => "--validator",
        :description => "Create the client as a validator",
        :boolean => true

      banner "knife client create CLIENT (options)"

      def run
        @client_name = @name_args[0]

        if @client_name.nil?
          show_usage
          ui.fatal("You must specify a client name")
          exit 1
        end

        client_hash = {
          "name" => @client_name,
          "admin" => !!config[:admin],
          "validator" => !!config[:validator]
        }

        output = Chef::ApiClient.from_hash(edit_hash(client_hash))

        # Chef::ApiClient.save will try to create a client and if it
        # exists will update it instead silently.
        client = output.save

        # We only get a private_key on client creation, not on client update.
        if client['private_key']
          ui.info("Created #{output}")

          if config[:file]
            File.open(config[:file], "w") do |f|
              f.print(client['private_key'])
            end
          else
            puts client['private_key']
          end
        else
          ui.error "Client '#{client['name']}' already exists"
          exit 1
        end
      end
    end
  end
end
