module BinInstall
  module Ruby
    module Rvm
      def self.install_ruby(version = nil)
        version ||= Ruby.required_ruby_version

        if version
          system("rvm install #{version}")
          system("rvm use #{version}")
        else
          puts 'Unknown Ruby version. Create .ruby-version file.'
        end
      end

      def self.install_ruby!(version = nil)
        version ||= Ruby.required_ruby_version

        if version
          BinInstall.system!("rvm install #{version}")
          BinInstall.system!("rvm use #{version}")
        else
          abort('Unknown Ruby version. Create .ruby-version file.'.red)
        end
      end

      def self.installed?
        Shell.executable_exists?('rvm')
      end
    end
  end
end