299 lines
9.6 KiB
JavaScript
299 lines
9.6 KiB
JavaScript
// @flow
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import type { Node } from 'react';
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import React, { useRef } from 'react';
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import Button from 'component/button';
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import ClaimPreviewTile from 'component/claimPreviewTile';
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import I18nMessage from 'component/i18nMessage';
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import useFetchViewCount from 'effects/use-fetch-view-count';
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import useGetLastVisibleSlot from 'effects/use-get-last-visible-slot';
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import useResolvePins from 'effects/use-resolve-pins';
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import useGetUserMemberships from 'effects/use-get-user-memberships';
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const SHOW_TIMEOUT_MSG = false;
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function urisEqual(prev: ?Array<string>, next: ?Array<string>) {
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if (!prev || !next) {
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// ClaimList: "null" and "undefined" have special meaning,
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// so we can't just compare array length here.
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// - null = "timed out"
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// - undefined = "no result".
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return prev === next;
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}
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// $FlowFixMe - already checked for null above.
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return prev.length === next.length && prev.every((value, index) => value === next[index]);
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}
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// ****************************************************************************
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// ClaimTilesDiscover
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// ****************************************************************************
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type Props = {
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prefixUris?: Array<string>,
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pins?: { urls?: Array<string>, claimIds?: Array<string>, onlyPinForOrder?: string },
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uris: Array<string>,
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injectedItem?: ListInjectedItem,
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showNoSourceClaims?: boolean,
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renderProperties?: (Claim) => ?Node,
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fetchViewCount?: boolean,
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// claim search options are below
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tags: Array<string>,
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claimIds?: Array<string>,
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channelIds?: Array<string>,
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pageSize: number,
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orderBy?: Array<string>,
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releaseTime?: string,
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languages?: Array<string>,
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claimType?: string | Array<string>,
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streamTypes?: Array<string>,
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timestamp?: string,
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feeAmount?: string,
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limitClaimsPerChannel?: number,
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hasSource?: boolean,
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hasNoSource?: boolean,
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forceShowReposts?: boolean, // overrides SETTINGS.HIDE_REPOSTS
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loading: boolean,
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// --- select ---
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location: { search: string },
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claimSearchResults: Array<string>,
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claimsByUri: { [string]: any },
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claimsById: { [string]: any },
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fetchingClaimSearch: boolean,
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showNsfw: boolean,
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hideReposts: boolean,
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optionsStringified: string,
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// --- perform ---
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doClaimSearch: ({}) => void,
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doFetchViewCount: (claimIdCsv: string) => void,
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doFetchUserMemberships: (claimIdCsv: string) => void,
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doResolveClaimIds: (Array<string>) => Promise<any>,
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doResolveUris: (Array<string>, boolean) => Promise<any>,
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};
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function ClaimTilesDiscover(props: Props) {
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const {
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doClaimSearch,
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claimSearchResults,
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claimsByUri,
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claimsById,
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fetchViewCount,
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fetchingClaimSearch,
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hasNoSource,
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// forceShowReposts = false,
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renderProperties,
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pins,
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prefixUris,
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injectedItem,
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showNoSourceClaims,
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doFetchViewCount,
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pageSize = 8,
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optionsStringified,
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doFetchUserMemberships,
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doResolveClaimIds,
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doResolveUris,
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loading,
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} = props;
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const listRef = React.useRef();
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const findLastVisibleSlot = injectedItem && injectedItem.node && injectedItem.index === undefined;
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const lastVisibleIndex = useGetLastVisibleSlot(listRef, !findLastVisibleSlot);
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const prevUris = React.useRef();
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const claimSearchUris = claimSearchResults || [];
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const isUnfetchedClaimSearch = claimSearchResults === undefined;
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const resolvedPinUris = useResolvePins({ pins, claimsById, doResolveClaimIds, doResolveUris });
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const uriBuffer = useRef([]);
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const timedOut = claimSearchResults === null;
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const shouldPerformSearch = !fetchingClaimSearch && !timedOut && claimSearchUris.length === 0;
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const uris = (prefixUris || []).concat(claimSearchUris);
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if (prefixUris && prefixUris.length) uris.splice(prefixUris.length * -1, prefixUris.length);
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if (window.location.pathname === '/') {
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injectPinUrls(uris, pins, resolvedPinUris);
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}
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if (uris.length > 0 && uris.length < pageSize && shouldPerformSearch) {
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// prefixUri and pinUrls might already be present while waiting for the
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// remaining claim_search results. Fill the space to prevent layout shifts.
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uris.push(...Array(pageSize - uris.length).fill(''));
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}
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// Show previous results while we fetch to avoid blinkies and poor CLS.
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const finalUris = isUnfetchedClaimSearch && prevUris.current ? prevUris.current : uris;
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prevUris.current = finalUris;
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// --------------------------------------------------------------------------
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// --------------------------------------------------------------------------
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function injectPinUrls(uris, pins, resolvedPinUris) {
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if (!pins || !uris || uris.length <= 2) {
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return;
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}
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if (resolvedPinUris) {
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resolvedPinUris.forEach((pin) => {
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if (uris.includes(pin)) {
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uris.splice(uris.indexOf(pin), 1);
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} else {
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uris.pop();
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}
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});
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uris.splice(2, 0, ...resolvedPinUris);
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}
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}
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const getInjectedItem = (index) => {
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if (injectedItem && injectedItem.node) {
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if (typeof injectedItem.node === 'function') {
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return injectedItem.node(index, lastVisibleIndex, pageSize);
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} else {
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if (injectedItem.index === undefined || injectedItem.index === null) {
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return index === lastVisibleIndex ? injectedItem.node : null;
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} else {
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return index === injectedItem.index ? injectedItem.node : null;
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}
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}
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}
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return null;
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};
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// --------------------------------------------------------------------------
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// --------------------------------------------------------------------------
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useFetchViewCount(fetchViewCount, uris, claimsByUri, doFetchViewCount);
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useGetUserMemberships(true, uris, claimsByUri, doFetchUserMemberships);
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React.useEffect(() => {
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if (shouldPerformSearch) {
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const searchOptions = JSON.parse(optionsStringified);
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doClaimSearch(searchOptions);
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}
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}, [doClaimSearch, shouldPerformSearch, optionsStringified]);
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// --------------------------------------------------------------------------
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// --------------------------------------------------------------------------
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if (timedOut && SHOW_TIMEOUT_MSG) {
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return (
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<div className="empty empty--centered">
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<p>{__('Sorry, your request timed out. Try refreshing in a bit.')}</p>
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<p>
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<I18nMessage
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tokens={{
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contact_support: (
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<Button
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button="link"
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label={__('contact support')}
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href="https://odysee.com/@OdyseeHelp:b?view=about"
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/>
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),
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}}
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>
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If you continue to have issues, please %contact_support%.
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</I18nMessage>
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</p>
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</div>
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);
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}
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return (
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<ul ref={listRef} className="claim-grid">
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{!loading && finalUris && finalUris.length
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? finalUris.map((uri, i) => {
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if (uri) {
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const inj = getInjectedItem(i);
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if (inj) {
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if (!uriBuffer.current.includes(i)) {
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uriBuffer.current.push(i);
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}
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}
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return (
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<React.Fragment key={uri}>
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{inj && inj}
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{(i < finalUris.length - uriBuffer.current.length || i < pageSize - uriBuffer.current.length) && (
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<ClaimPreviewTile
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showNoSourceClaims={hasNoSource || showNoSourceClaims}
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uri={uri}
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properties={renderProperties}
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/>
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)}
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</React.Fragment>
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);
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} else {
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return (
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<ClaimPreviewTile showNoSourceClaims={hasNoSource || showNoSourceClaims} key={i} placeholder pulse />
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);
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}
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})
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: new Array(pageSize)
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.fill(1)
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.map((x, i) => (
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<ClaimPreviewTile showNoSourceClaims={hasNoSource || showNoSourceClaims} key={i} placeholder pulse />
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))}
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</ul>
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);
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}
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export default React.memo<Props>(ClaimTilesDiscover, areEqual);
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// ****************************************************************************
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// ****************************************************************************
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function trace(key, value) {
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// @if process.env.DEBUG_TILE_RENDER
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// $FlowFixMe "cannot coerce certain types".
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console.log(`[claimTilesDiscover] ${key}: ${value}`); // eslint-disable-line no-console
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// @endif
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}
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function areEqual(prev: Props, next: Props) {
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// --- Deep-compare ---
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// These are props that are hard to memoize from where it is passed.
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if (prev.claimType !== next.claimType) {
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// Array<string>: confirm the contents are actually different.
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if (prev.claimType && next.claimType && JSON.stringify(prev.claimType) !== JSON.stringify(next.claimType)) {
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trace('claimType', next.claimType);
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return false;
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}
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}
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const ARRAY_KEYS = ['prefixUris', 'channelIds'];
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for (let i = 0; i < ARRAY_KEYS.length; ++i) {
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const key = ARRAY_KEYS[i];
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if (!urisEqual(prev[key], next[key])) {
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trace(key, next[key]);
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return false;
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}
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}
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// --- Default the rest(*) to shallow-compare ---
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// (*) including new props introduced in the future, in case developer forgets
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// to update this function. Better to render more than miss an important one.
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const KEYS_TO_IGNORE = [
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...ARRAY_KEYS,
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'claimType', // Handled above.
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'claimsByUri', // Used for view-count. Just ignore it for now.
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'location',
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'history',
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'match',
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'doClaimSearch',
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];
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const propKeys = Object.keys(next);
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for (let i = 0; i < propKeys.length; ++i) {
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const pk = propKeys[i];
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if (!KEYS_TO_IGNORE.includes(pk) && prev[pk] !== next[pk]) {
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trace(pk, next[pk]);
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return false;
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}
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}
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return true;
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}
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