1 files changed, 60 insertions, 0 deletions
diff --git a/app/finders/autocomplete_users_finder.rb b/app/finders/autocomplete_users_finder.rb
new file mode 100644
index 00000000000..b8f52e31926
--- /dev/null
+++ b/app/finders/autocomplete_users_finder.rb
@@ -0,0 +1,60 @@
+class AutocompleteUsersFinder
+  attr_reader :current_user, :project, :group, :search, :skip_users,
+              :page, :per_page, :author_id, :params
+
+  def initialize(params:, current_user:, project:, group:)
+    @current_user = current_user
+    @project = project
+    @group = group
+    @search = params[:search]
+    @skip_users = params[:skip_users]
+    @page = params[:page]
+    @per_page = params[:per_page]
+    @author_id = params[:author_id]
+    @params = params
+  end
+
+  def execute
+    items = find_users
+    items = items.active
+    items = items.reorder(:name)
+    items = items.search(search) if search.present?
+    items = items.where.not(id: skip_users) if skip_users.present?
+    items = items.page(page).per(per_page)
+
+    if params[:todo_filter].present? && current_user
+      items = items.todo_authors(current_user.id, params[:todo_state_filter])
+    end
+
+    if search.blank?
+      # Include current user if available to filter by "Me"
+      if params[:current_user].present? && current_user
+        items = [current_user, *items].uniq
+      end
+
+      if author_id.present? && current_user
+        author = User.find_by_id(author_id)
+        items = [author, *items].uniq if author
+      end
+    end
+
+    items
+  end
+
+  private
+
+  def find_users
+    return users_from_project if project
+    return group.users if group
+    return User.all if current_user
+
+    User.none
+  end
+
+  def users_from_project
+    user_ids = project.team.users.pluck(:id)
+    user_ids << author_id if author_id.present?
+
+    User.where(id: user_ids)
+  end
+end