module PreviewService
  class Grid
    GRID_MARGIN: Integer
    GRID_CELL_SIZE: Integer
    GRID_START_X: Integer
    GRID_START_Y: Integer

    def grid_position: (String type, Integer idx) -> { x: Integer, y: Integer }

    def draw_grid_item: (
        MiniMagick::Image image,
        MiniMagick::Image item_image,
        String type,
        Integer idx,
        ?resize_to: Integer
      ) -> MiniMagick::Image
  end
end