@RequestMapping(value = {"/", "/purchase-history"})
	public ModelAndView showHistoryPage(@RequestParam Map<String, String> queryMap,
			@ModelAttribute PurchaseHistoryCriteria history,
			@RequestParam("pageSize") Optional<Integer> pageSize,
			@RequestParam("page") Optional<Integer> page) {
		ModelAndView modelAndView = new ModelAndView("purchase-history");
		int evalPageSize = pageSize.orElse(INITIAL_PAGE_SIZE);
		int evalPage = (page.orElse(0) < 1) ? INITIAL_PAGE : page.get() - 1;

		Object[] myResult = historyRestController.getAllHistory(history, evalPage);
		List<PurchaseHistoryList> listModel = (List<PurchaseHistoryList>)myResult[1];

		long totalAmount = (long)myResult[2];

		List<LabInformation> labs = customerRestController.getAllLabs();

		int totalSize = (int)myResult[0];
		Pageable pageable = PageRequest.of(evalPage, evalPageSize);
		int start = (int) pageable.getOffset();
		int end = (start + pageable.getPageSize()) > totalSize ? totalSize : (start + pageable.getPageSize());
		Page<PurchaseHistoryList> result = new PageImpl<PurchaseHistoryList>(listModel, pageable, totalSize);
		Pager pager = new Pager(result.getTotalPages(), result.getNumber(), BUTTONS_TO_SHOW);

		//TODO Need to support Internationalization/Localization later
		List<String> genders = new ArrayList<String>();
		genders.add("M");
		genders.add("F");
		modelAndView.addObject("genders", genders);

		modelAndView.addObject("filteredHistory", history);
		modelAndView.addObject("purchaseHistory", result);
		modelAndView.addObject("totalAmount", CommonUtil.formatAmountNumber(Long.toString(totalAmount)));
		modelAndView.addObject("labs", labs);
		modelAndView.addObject("selectedPageSize", evalPageSize);
		modelAndView.addObject("pager", pager);

		//construct GET url
		/**
		 * access from url e.q {url}/purchase-history --> all fields in history will be null
		 * if clicked search but none of the field entered --> will be blank("") for each field in history object
		 */
		if (history == null || CustomerUtil.checkEmptySearchFields(history))
			modelAndView.addObject("url", "/purchase-history"); //important for paging to work
		else {
			// We need checkedGender from history object because we cannot rely the information from queryMap
			String filterHistoryGetUrl = CustomerUtil.createHistoryGetUrl(purchaseHistoryKeys, queryMap, history.getCheckedGenders());
			modelAndView.addObject("url", filterHistoryGetUrl);
		}

		return modelAndView;
	}