use real data in roles widget

src/lib/installation/select_system_role.rb

@@ -34,7 +34,8 @@ class << self
 
     NON_OVERLAY_ATTRIBUTES = [
       "additional_dialogs",
-      "id"
+      "id",
+      "services"
     ].freeze
 
     def initialize

src/lib/installation/widgets/system_role.rb

@@ -21,32 +21,94 @@
 
 require "yast"
 require "cwm/widget"
+require "installation/services"
+
+Yast.import "ProductControl"
+Yast.import "ProductFeatures"
+
 
 module Installation
   module Widgets
     # TODO: steal / refactor Installation::SelectSystemRole
     # from src/lib/installation/select_system_role.rb
     class SystemRole < CWM::ComboBox
+      class << self
+        # once the user selects a role, remember it in case they come back
+        attr_accessor :original_role_id
+      end
+
       def initialize
         textdomain "installation"
       end
 
       def label
-        _("System Role")
+        Yast::ProductControl.GetTranslatedText("roles_caption")
       end
 
       def opt
         [:hstretch]
       end
 
+      def init
+        self.class.original_role_id ||= roles_attributes.first[:id]
+        self.value = self.class.original_role_id
+      end
+
       def items
-        [
-          # FIXME: still hardcoding for easier testing
-          ["foo", _("Adminstration Dashboard")],
-          ["bar", _("Worker")],
-          ["baz", _("Plain System")],
-          ["qux", _("FIXME use real data")]
-        ]
+        roles_description.map do |attr|
+          [attr[:id], attr[:label]]
+        end
+      end
+
+      def help
+        Yast::ProductControl.GetTranslatedText("roles_help") + "\n\n"
+          roles_description.map { |r| r[:label] + "\n\n" + r[:description] + "\n\n\n"}
+      end
+
+      NON_OVERLAY_ATTRIBUTES = [
+        "additional_dialogs",
+        "id"
+      ].freeze
+      private_constant :NON_OVERLAY_ATTRIBUTES
+
+
+      def store
+        log.info "Applying system role '#{value}'"
+        features = raw_roles.find { |r| r["id"] == value }
+        features = features.dup
+        NON_OVERLAY_ATTRIBUTES.each { |a| features.delete(a) }
+        Yast::ProductFeatures.SetOverlay(features)
+        adapt_services
+        self.class.original_role_id = value
+      end
+
+
+    private
+
+      def raw_roles
+        @raw_roles ||= Yast::ProductControl.productControl.fetch("system_roles", [])
+      end
+
+      def roles_description
+        @roles_description ||= raw_roles.map do |r|
+          id = r["id"]
+
+          {
+            id:          id,
+            label:       Yast::ProductControl.GetTranslatedText(id),
+            description: Yast::ProductControl.GetTranslatedText(id + "_description")
+          }
+        end
+      end
+
+      def adapt_services
+        services = raw_roles.find { |r| r["id"] == role_id }["services"]
+        services ||= []
+
+        to_enable = services.map { |s| s["name"] }
+        log.info "enable for #{role_id} these services: #{to_enable.inspect}"
+
+        Installation::Services.enabled = to_enable
       end
     end
   end