constructor()

in src/amo/pages/SearchPage/index.js [47:132]
63 lines of code
14 McCabe index (conditional complexity)

  constructor(props: InternalProps) {
    super(props);

    const { clientApp, filters, lang, location } = props;

    let pathname = '/search/';
    let shouldRedirect = false;
    const newFilters = { ...filters };

    // If this is an old category search, redirect to the new category page,
    // unless the `type` is invalid.
    if (
      newFilters.category &&
      newFilters.addonType &&
      visibleAddonTypeIsValid(newFilters.addonType) &&
      // We have to add this below the call to visibleAddonTypeIsValid or
      // Flow gets angry.
      newFilters.addonType
    ) {
      pathname = getCategoryResultsPathname({
        addonType: newFilters.addonType,
        slug: newFilters.category,
      });

      delete newFilters.addonType;
      delete newFilters.category;

      if (newFilters.sort === DEFAULT_CATEGORY_SORT) {
        delete newFilters.sort;
      }

      shouldRedirect = true;
    } else if (
      // If this is a tag search we want to redirect to new tag pages.
      newFilters.tag
    ) {
      pathname = getTagResultsPathname({ tag: newFilters.tag });

      delete newFilters.tag;

      if (newFilters.sort === DEFAULT_TAG_SORT) {
        delete newFilters.sort;
      }

      shouldRedirect = true;
    }

    // We removed the `platform` parameter, so if it's present, ignore it and
    // redirect.
    if (location.query.platform) {
      shouldRedirect = true;
    }

    // Map the old `atype` parameter to its corresponding `adddonType`.
    // See: https://github.com/mozilla/addons-frontend/issues/3791.
    if (location.query.atype) {
      switch (String(location.query.atype)) {
        case '1':
          newFilters.addonType = ADDON_TYPE_EXTENSION;
          break;
        case '3':
          newFilters.addonType = ADDON_TYPE_DICT;
          break;
        case '5':
          newFilters.addonType = ADDON_TYPE_LANG;
          break;
        default:
          return;
      }

      shouldRedirect = true;
    }

    if (shouldRedirect) {
      const queryString = makeQueryString(
        convertFiltersToQueryParams(newFilters),
      );

      props.dispatch(
        sendServerRedirect({
          status: 301,
          url: `/${lang}/${clientApp}${pathname}${queryString}`,
        }),
      );
    }
  }