1 files changed, 60 insertions, 0 deletions
diff --git a/app/services/labels/available_labels_service.rb b/app/services/labels/available_labels_service.rb
new file mode 100644
index 00000000000..fe477d96970
--- /dev/null
+++ b/app/services/labels/available_labels_service.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+module Labels
+  class AvailableLabelsService
+    attr_reader :current_user, :parent, :params
+
+    def initialize(current_user, parent, params)
+      @current_user = current_user
+      @parent = parent
+      @params = params
+    end
+
+    def find_or_create_by_titles
+      labels = params.delete(:labels)
+
+      return [] unless labels
+
+      labels = labels.split(',') if labels.is_a?(String)
+
+      labels.map do |label_name|
+        label = Labels::FindOrCreateService.new(
+          current_user,
+          parent,
+          include_ancestor_groups: true,
+          title: label_name.strip,
+          available_labels: available_labels
+        ).execute
+
+        label
+      end.compact
+    end
+
+    def filter_labels_ids_in_param(key)
+      return [] if params[key].to_a.empty?
+
+      # rubocop:disable CodeReuse/ActiveRecord
+      available_labels.by_ids(params[key]).pluck(:id)
+      # rubocop:enable CodeReuse/ActiveRecord
+    end
+
+    private
+
+    def available_labels
+      @available_labels ||= LabelsFinder.new(current_user, finder_params).execute
+    end
+
+    def finder_params
+      params = { include_ancestor_groups: true }
+
+      case parent
+      when Group
+        params[:group_id] = parent.id
+        params[:only_group_labels] = true
+      when Project
+        params[:project_id] = parent.id
+      end
+
+      params
+    end
+  end
+end