Pattern modify dbus

service/lib/agama/dbus/software/manager.rb

@@ -51,6 +51,7 @@ def initialize(backend, logger)
           register_callbacks
           register_progress_callbacks
           register_service_status_callbacks
+          @selected_patterns = {}
         end
 
         SOFTWARE_INTERFACE = "org.opensuse.Agama.Software1"
@@ -61,6 +62,13 @@ def initialize(backend, logger)
 
           dbus_reader :selected_base_product, "s"
 
+          # documented way to be able to write to patterns and trigger signal
+          attr_writer :selected_patterns
+
+          # selected patterns is hash with pattern name as id and 0 for user selected and
+          # 1 for auto selected. Can be extended in future e.g. for mandatory patterns
+          dbus_attr_reader :selected_patterns, "a{sy}"
+
           dbus_method :SelectProduct, "in ProductID:s" do |product_id|
             old_product_id = backend.product
 
@@ -91,6 +99,10 @@ def initialize(backend, logger)
             ]
           end
 
+          dbus_method :AddPattern, "in id:s" { |p| backend.add_pattern(p) }
+          dbus_method :RemovePattern, "in id:s" { |p| backend.remove_pattern(p) }
+          dbus_method :SetUserPatterns, "in ids:as" { |ids| backend.user_patterns = ids }
+
           dbus_method :ProvisionsSelected, "in Provisions:as, out Result:ab" do |provisions|
             [provisions.map { |p| backend.provision_selected?(p) }]
           end
@@ -161,6 +173,21 @@ def register_callbacks
           nm_client.on_connection_changed do |connected|
             probe if connected
           end
+
+          backend.on_selected_patterns_change do
+            self.selected_patterns = compute_patterns
+          end
+        end
+
+        USER_SELECTED_PATTERN = 0
+        AUTO_SELECTED_PATTERN = 0
+        def compute_patterns
+          patterns = {}
+          user_selected, auto_selected = backend.selected_patterns
+          user_selected.each { |p| patterns[p] = USER_SELECTED_PATTERN }
+          auto_selected.each { |p| patterns[p] = AUTO_SELECTED_PATTERN }
+
+          patterns
         end
       end
     end

service/lib/agama/software/manager.rb

@@ -75,6 +75,9 @@ def initialize(config, logger)
         end
         @repositories = RepositoriesManager.new
         on_progress_change { logger.info progress.to_s }
+        # patterns selected by user
+        @user_patterns = []
+        @selected_patterns_change_callbacks = []
       end
 
       def select_product(name)
@@ -190,6 +193,52 @@ def patterns(filtered)
         patterns
       end
 
+      def add_pattern(id)
+        # TODO: error handling
+        res = Yast::Pkg.ResolvableInstall(id, :pattern)
+        logger.info "Adding pattern #{res.inspect}"
+        @user_patterns << id
+
+        res = Yast::Pkg.PkgSolve(unused = true)
+        logger.info "Solver run #{res.inspect}"
+        selected_patterns_changed
+      end
+
+      def remove_pattern(id)
+        # TODO: error handling
+        Yast::Pkg.ResolvableRemove(id, :pattern)
+        logger.info "Removing pattern #{res.inspect}"
+        @user_patterns << id
+
+        res = Yast::Pkg.PkgSolve(unused = true)
+        logger.info "Solver run #{res.inspect}"
+        selected_patterns_changed
+      end
+
+      def user_patterns=(ids)
+        @user_patterns.each { |p| Yast::Pkg.ResolvableRemove(p, :pattern) }
+        @user_patterns = ids
+        @user_patterns.each { |p| Yast::Pkg.ResolvableInstall(p, :pattern) }
+        logger.info "Setting patterns to #{res.inspect}"
+
+        res = Yast::Pkg.PkgSolve(unused = true)
+        logger.info "Solver run #{res.inspect}"
+        selected_patterns_changed
+      end
+
+      # @return [Array<Array<String>,Array<String>] returns pair of arrays where the first one
+      #   is user selected pattern ids and in other is auto selected ones
+      def selected_patterns
+        patterns = Y2Packager::Resolvable.find(kind: :pattern, status: :selected)
+        patterns.map!(&:name)
+
+        patterns.partition { |p| @user_patterns.include?(p) }
+      end
+
+      def on_selected_patterns_change(&block)
+        @selected_patterns_change_callbacks << block
+      end
+
       # Determines whether a package is installed
       #
       # @param name [String] Package name
@@ -290,6 +339,10 @@ def select_resolvables
         proposal.set_resolvables("agama", :package, optional_packages,
           optional: true)
       end
+
+      def selected_patterns_changed
+        @selected_patterns_change_callbacks.each(&:call)
+      end
     end
   end
 end