# Copyright (C) 2011-2012 RightScale, Inc, All Rights Reserved Worldwide.
#
# THIS PROGRAM IS CONFIDENTIAL AND PROPRIETARY TO RIGHTSCALE
# AND CONSTITUTES A VALUABLE TRADE SECRET. Any unauthorized use,
# reproduction, modification, or disclosure of this program is
# strictly prohibited. Any use of this program by an authorized
# licensee is strictly subject to the terms and conditions,
# including confidentiality obligations, set forth in the applicable
# License Agreement between RightScale.com, Inc. and
# the licensee

module RightConf

  class PackagesConfigurator

    include Configurator

    register :packages

    description 'Installs packages defined for running platform'

    settings :debian  => 'Packages to be installed on Debian based Linux',
             :centos  => 'Packages to be installed on RedHat / Centos',
             :windows => 'Softwared to be downloaded and installed on Windows',
             :darwin  => 'Brew packages to be installed on Mac OS X (https://github.com/mxcl/homebrew)',
             :abort_on_failure => 'Whether to abort if packages failed to install (false by default)'

    # Let package manager check for idempotency, return false
    #
    # === Return
    # false:: Always return false
    def check_linux
      false
    end
    alias :check_darwin :check_linux
    alias :check_windows :check_linux

    # Install packages on debian based oses
    #
    # === Return
    # true:: Always return true
    def run_linux_ubuntu
      PackageInstaller.install(debian, options)
      true
    end
    alias :run_linux_debian :run_linux_ubuntu

    # Install packages on centos based oses
    #
    # === Return
    # true:: Always return true
    def run_linux_centos
      PackageInstaller.install(centos, options)
      true
    end
    alias :run_linux_redhat :run_linux_centos

    # Install packages on macs
    #
    # === Return
    # true:: Always return true
    def run_darwin
      PackageInstaller.install(darwin, options)
      true
    end

    protected

    # Calculate options to be given to installer
    #
    # === Return
    # opts(Hash):: Hash of options to be given to installer
    def options
      opts = { :report => true }
      opts.merge!({ :abort_on_failure => 'Failed to install packages' }) if abort_on_failure
      opts
    end

  end
end