69 lines
1.8 KiB
React
69 lines
1.8 KiB
React
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// @flow
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import * as ICONS from 'constants/icons';
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import * as PAGES from 'constants/pages';
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type HomepageOrder = { active: ?Array<string>, hidden: ?Array<string> };
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const FYP_SECTION: RowDataItem = {
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id: 'FYP',
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title: 'Recommended',
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icon: ICONS.GLOBE,
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link: `/$/${PAGES.FYP}`,
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};
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function pushAllValidCategories(rowData: Array<RowDataItem>, hasMembership: ?boolean) {
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const x: Array<RowDataItem> = [];
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rowData.forEach((data: RowDataItem) => {
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if (!data.hideByDefault) {
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x.push(data);
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}
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if (data.id === 'FOLLOWING' && hasMembership) {
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x.push(FYP_SECTION);
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}
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});
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return x;
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}
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export function getSortedRowData(
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authenticated: boolean,
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hasMembership: ?boolean,
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homepageOrder: HomepageOrder,
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rowData: Array<RowDataItem>
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) {
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let sortedRowData: Array<RowDataItem> = [];
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if (authenticated) {
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if (homepageOrder.active) {
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// Grab categories that are still valid in the latest homepage:
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homepageOrder.active.forEach((key) => {
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const dataIndex = rowData.findIndex((data) => data.id === key);
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if (dataIndex !== -1) {
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sortedRowData.push(rowData[dataIndex]);
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rowData.splice(dataIndex, 1);
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} else if (key === 'FYP') {
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// Special-case injection (not part of category definition):
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sortedRowData.push(FYP_SECTION);
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}
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});
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// For remaining 'rowData', display it if it's a new category:
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rowData.forEach((data: RowDataItem) => {
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if (!data.hideByDefault) {
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if (!homepageOrder.hidden || !homepageOrder.hidden.includes(data.id)) {
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sortedRowData.push(data);
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}
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}
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});
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} else {
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sortedRowData = pushAllValidCategories(rowData, hasMembership);
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}
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} else {
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sortedRowData = pushAllValidCategories(rowData, hasMembership);
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}
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return sortedRowData;
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}
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