module VagrantPlugins
  module Puppet
    module Config
      class Puppet < Vagrant.plugin("2", :config)
        attr_accessor :manifest_file
        attr_accessor :manifests_path
        attr_accessor :module_path
        attr_accessor :pp_path
        attr_accessor :options
        attr_accessor :facter

        def manifest_file; @manifest_file || "default.pp"; end
        def manifests_path; @manifests_path || "manifests"; end
        def pp_path; @pp_path || "/tmp/vagrant-puppet"; end
        def options; @options ||= []; end
        def facter; @facter ||= {}; end

        # Returns the manifests path expanded relative to the root path of the
        # environment.
        def expanded_manifests_path(root_path)
          Pathname.new(manifests_path).expand_path(root_path)
        end

        # Returns the module paths as an array of paths expanded relative to the
        # root path.
        def expanded_module_paths(root_path)
          return [] if !module_path

          # Get all the paths and expand them relative to the root path, returning
          # the array of expanded paths
          paths = module_path
          paths = [paths] if !paths.is_a?(Array)
          paths.map do |path|
            Pathname.new(path).expand_path(root_path)
          end
        end

        def validate(machine)
          errors = []

          # Calculate the manifests and module paths based on env
          this_expanded_manifests_path = expanded_manifests_path(machine.env.root_path)
          this_expanded_module_paths = expanded_module_paths(machine.env.root_path)

          # Manifests path/file validation
          if !this_expanded_manifests_path.directory?
            errors << I18n.t("vagrant.provisioners.puppet.manifests_path_missing",
                             :path => this_expanded_manifests_path)
          else
            expanded_manifest_file = this_expanded_manifests_path.join(manifest_file)
            if !expanded_manifest_file.file?
              errors << I18n.t("vagrant.provisioners.puppet.manifest_missing",
                               :manifest => expanded_manifest_file.to_s)
            end
          end

          # Module paths validation
          this_expanded_module_paths.each do |path|
            if !path.directory?
              errors << I18n.t("vagrant.provisioners.puppet.module_path_missing",
                               :path => path)
            end
          end

          { "puppet provisioner" => errors }
        end
      end
    end
  end
end