1 files changed, 64 insertions, 0 deletions
diff --git a/app/finders/namespaces/projects_finder.rb b/app/finders/namespaces/projects_finder.rb
new file mode 100644
index 00000000000..a6d98015e9d
--- /dev/null
+++ b/app/finders/namespaces/projects_finder.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+# Namespaces::ProjectsFinder
+#
+# Used to filter Projects by set of params
+#
+# Arguments:
+#   current_user
+#   namespace
+#   params:
+#     sort: string
+#     search: string
+#     include_subgroups: boolean
+#     ids: int[]
+#
+module Namespaces
+  class ProjectsFinder
+    def initialize(namespace: nil, current_user: nil, params: {})
+      @namespace = namespace
+      @current_user = current_user
+      @params = params
+    end
+
+    def execute
+      return Project.none if namespace.nil?
+
+      collection = if params[:include_subgroups].present?
+                     namespace.all_projects.with_route
+                   else
+                     namespace.projects.with_route
+                   end
+
+      filter_projects(collection)
+    end
+
+    private
+
+    attr_reader :namespace, :params, :current_user
+
+    def filter_projects(collection)
+      collection = by_ids(collection)
+      collection = by_similarity(collection)
+      collection
+    end
+
+    def by_ids(items)
+      return items unless params[:ids].present?
+
+      items.id_in(params[:ids])
+    end
+
+    def by_similarity(items)
+      return items unless params[:search].present?
+
+      if params[:sort] == :similarity
+        items = items.sorted_by_similarity_desc(params[:search], include_in_select: true)
+      end
+
+      items.merge(Project.search(params[:search]))
+    end
+  end
+end
+
+Namespaces::ProjectsFinder.prepend_if_ee('::EE::Namespaces::ProjectsFinder')