re-structure to monorepo.

packages/webapp/src/store/selectors.tsx

@@ -0,0 +1,59 @@
+// @ts-nocheck
+import { pick, at, mapValues } from 'lodash';
+
+export const getItemById = (items, id) => {
+  return items[id] || null;
+};
+
+export const pickItemsFromIds = (items, ids) => {
+  return at(items, ids).filter(i => i);
+}
+
+export const getCurrentPageResults = (items, pages, pageNumber) => {
+  const currentPage = pages[pageNumber]
+  return typeof currentPage == 'undefined' ?
+    [] : pickItemsFromIds(items, currentPage.ids);
+}
+
+export const getCurrentTotalResultsCount = (pagination, name) => {
+  const currentPageUrl = pagination.currentPages[name]
+  const currentPage = pagination.pages[currentPageUrl]
+  return typeof currentPageUrl == 'undefined' ? 0 : pagination.params[currentPage.params]
+}
+
+export const getAllResults = (items, pagination, name) => {
+  const currentPage = pagination.pages[pagination.currentPages[name]]
+  if (typeof currentPage == 'undefined') {
+    return []
+  }
+  let allPagesKeys = Object.keys(pagination.pages)
+  let allPagesIds = []
+  for (let key of allPagesKeys) {
+    if (pagination.pages[key].params == currentPage.params) {
+      allPagesIds = allPagesIds.concat(pagination.pages[key].ids)
+    }
+  }
+  return Object.values(pick(items || [], allPagesIds))
+}
+
+export const paginationLocationQuery = (state, props) => {
+  const queryParams = props.location
+    ? new URLSearchParams(props.location.search)
+    : null;
+
+  const queryParamsKeys = ['page_size', 'page', 'custom_view_id'];
+
+  return queryParams
+    ? mapValues(pick(Object.fromEntries(queryParams), queryParamsKeys), (v) =>
+        parseInt(v, 10),
+      )
+    : null;
+}
+
+export const defaultPaginationMeta = () => ({
+  pageSize: 0,
+  page: 1,
+  total: 0,
+  pagesCount: 0,
+  pageIndex: 0,
+})