All files / src/features/Merchants/MerchantsTable/hooks useDropdownFilter.tsx

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import { useMemo } from "react";
import { useAppDispatch, useAppSelector } from "@redux/hooks";
import {
  selectedQueries,
  setFilters,
  useTableFilters,
} from "@redux/slices/tableFilters";
import { formatQueryParamsList } from "@common/TableFilters/utils";
import { CheckIcon } from "@phosphor-icons/react";
import GiveThumbnail from "@shared/Thumbnail/GiveThumbnail";
import { addSizeToImage } from "@utils/image.helpers";
import {
  TOption,
  UseDropdownFilterParams,
  BuildQueryStringArgs,
} from "../types";
 
const testIdMap: Record<string, string> = {
  all: "All Merchants",
  pre_approval: "Pre-Approval",
  auto_approval: "Auto-Approval",
};
 
export const useDropdownFilter = ({
  queryKey,
  options,
}: UseDropdownFilterParams) => {
  const dispatch = useAppDispatch();
 
  // Hooks from tableFilters slice to manage quick filter and query string
  const { quickFilter, setQuickFilterValue, setQueryStringWithQuickFilter } =
    useTableFilters();
 
  // Get current filters from Redux store (selectedQueries)
  const contextQueries = useAppSelector(selectedQueries) || {};
  const { watchlist, ...otherQueries } = contextQueries; // Exclude watchlist
 
  const isMerchantDropdown = queryKey === "merchantName";
  const isProcessorDropdown = queryKey === "processorName";
  const isMerchantOrProcessor = isMerchantDropdown || isProcessorDropdown;
 
  const currentQueryKeyFilters = contextQueries[queryKey] ?? [];
  const hasFilterForThisKey = currentQueryKeyFilters.length > 0;
 
  // Determine the currently selected value
  // For merchant/processor dropdowns, use contextQueries
  // For other dropdowns, use quickFilter
  let selectedValue: string;
  if (isMerchantOrProcessor) {
    if (hasFilterForThisKey) {
      selectedValue = currentQueryKeyFilters[0]?.value;
    } else {
      selectedValue = "all";
    }
  } else {
    selectedValue = quickFilter || "all";
  }
 
  // Determine the selected option
  const selectedData: TOption = (() => {
    // Try to find in the current options list
    const optionFromList = options.find((o) => o.value === selectedValue);
    // Use stored filter from contextQueries if not found in options
    const optionFromContext =
      !optionFromList && hasFilterForThisKey && currentQueryKeyFilters[0]
        ? currentQueryKeyFilters[0]
        : null;
    // Build the selectedData object with proper fallback
    const label =
      optionFromList?.label ||
      optionFromContext?.label ||
      optionFromContext?.value ||
      `All ${isMerchantDropdown ? "Merchants" : ""}`;
 
    const value = optionFromList?.value || optionFromContext?.value || "all";
 
    return {
      ...optionFromContext,
      ...optionFromList,
      label,
      value,
    };
  })();
 
  const showAvatar = isMerchantDropdown && Boolean(selectedData.id);
  const selectedLabel = selectedData.label;
  const selectedImg = showAvatar ? (
    <GiveThumbnail
      imageUrl={addSizeToImage(selectedData.imageUrl || "", "thumb")}
      size="icon"
      type="merchant"
    />
  ) : undefined;
 
  /**
   * Handle selection of an option from the dropdown
   * - Updates quickFilter for normal dropdowns
   * - Updates contextQueries for merchant/processor dropdowns
   * - Updates query string for API / URL
   */
  const handleSelect = (option?: TOption) => {
    Iif (!option) return;
    // Check if the selected option is already applied
    const isAlreadySelected = currentQueryKeyFilters.some(
      (f: any) => f.value === option.value,
    );
    const nextFilters = isAlreadySelected ? [] : [option]; // Toggle selection
 
    if (isMerchantOrProcessor) {
      // Update contextQueries and full query string for merchant/processor dropdowns
      const updatedQueryParams = { ...contextQueries, [queryKey]: nextFilters };
      const fullQueryString = formatQueryParamsList(updatedQueryParams);
 
      const quickFilterQueryString = buildQueryString({
        option,
        queryKey,
        currentFilters: currentQueryKeyFilters,
        otherValues: otherQueries,
      });
 
      dispatch(
        setFilters({
          queryParams: updatedQueryParams,
          queryString: fullQueryString,
        }),
      );
 
      setQueryStringWithQuickFilter(quickFilterQueryString);
    } else {
      // For normal dropdowns, just update the quickFilter query string
      setQuickFilterValue(option.value === "all" ? null : option.value);
      const queryString = buildQueryString({
        option,
        queryKey,
        currentFilters: currentQueryKeyFilters,
        otherValues: otherQueries,
      });
      setQueryStringWithQuickFilter(queryString);
    }
  };
 
  const handleClear = () => {
    if (!isMerchantOrProcessor) setQuickFilterValue(null);
 
    if (isMerchantOrProcessor) {
      const updatedQueryParams = { ...contextQueries, [queryKey]: [] };
      const fullQueryString = formatQueryParamsList(updatedQueryParams);
      const quickFilterQueryString = formatQueryParamsList({
        ...otherQueries,
        [queryKey]: [],
      });
 
      dispatch(
        setFilters({
          queryParams: updatedQueryParams,
          queryString: fullQueryString,
        }),
      );
      setQueryStringWithQuickFilter(quickFilterQueryString);
    } else {
      const queryString = formatQueryParamsList({
        ...otherQueries,
        [queryKey]: [],
      });
      setQueryStringWithQuickFilter(queryString);
    }
  };
 
  const isFilterSelected = isMerchantOrProcessor
    ? hasFilterForThisKey
    : selectedValue !== "all";
 
  const menuOptions = useMemo(() => {
    return options.map((option) => ({
      text: option.label,
      isSelected: option.value === selectedValue,
      IconRight: option.value === selectedValue ? CheckIcon : undefined,
      onClick: () => {
        option.onClick?.(option); // call option's custom handler if exists
        handleSelect(option); // apply selection
      },
      "data-testid": testIdMap[option.value],
      Image: option.Image,
    }));
  }, [options, selectedValue, contextQueries]);
 
  const showResetButton = isMerchantDropdown || isProcessorDropdown;
 
  return {
    options,
    selectedValue,
    selectedLabel,
    selectedImg,
    menuOptions,
    handleSelect,
    handleClear,
    isFilterSelected,
    showResetButton,
  };
};
 
export const buildQueryString = ({
  option,
  queryKey,
  currentFilters = [],
  otherValues,
}: BuildQueryStringArgs) => {
  Iif (option.value === "all") return "";
 
  const isAlreadySelected = currentFilters.some(
    (f) => f.value === option.value,
  );
  const nextFilters = isAlreadySelected ? [] : [option];
 
  const queryString = formatQueryParamsList({
    ...otherValues,
    [queryKey]: nextFilters,
  });
 
  return queryString;
};