def __get_pagination_data(self, page: Page, page_number: int):
"""
create and return pagination data for pagination bar in front
"""
pages = []
pagination_data = {}
if page.has_previous():
pagination_data[PREVIOUS] = str(page.previous_page_number())
pages.append(str(page.previous_page_number()))
pages.append(page_number)
if page.has_next():
pagination_data[NEXT] = str(page.next_page_number())
pages.append(str(page.next_page_number()))
pagination_data[PAGES] = pages
pagination_data[CURRENT] = page_number
return pagination_data
