476 lines
No EOL
15 KiB
TypeScript
476 lines
No EOL
15 KiB
TypeScript
import { StrictMode, createContext, useContext, useEffect, useRef, useState } from 'react';
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import ReactDOM from 'react-dom/client';
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import { ProgressBar, Button, Container, Row, Col, Alert, Modal, Form, Spinner, Table } from 'react-bootstrap';
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import { AddTorrentResponse, TorrentDetails, TorrentFile, TorrentId, TorrentStats, ErrorDetails, API } from './api';
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interface Error {
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text: string,
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details?: ErrorDetails,
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}
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interface ContextType {
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setCloseableError: (error: Error) => void,
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refreshTorrents: () => void,
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}
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const AppContext = createContext<ContextType>(null);
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const TorrentRow: React.FC<{
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id: number, detailsResponse: TorrentDetails, statsResponse: TorrentStats
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}> = ({ id, detailsResponse, statsResponse }) => {
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const totalBytes = statsResponse?.snapshot?.total_bytes ?? 1;
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const downloadedBytes = statsResponse?.snapshot?.have_bytes ?? 0;
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const finished = totalBytes == downloadedBytes;
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const downloadPercentage = (downloadedBytes / totalBytes) * 100;
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return (
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<Row className={`${id % 2 == 0 ? 'bg-light' : ''}`}>
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<Column size={4} label="Name">
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{detailsResponse ?
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<div className='text-truncate'>
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{getLargestFileName(detailsResponse)}
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</div>
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: <Spinner />}
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</Column>
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{statsResponse ?
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<>
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<Column label="Size">{`${formatBytes(totalBytes)} `}</Column>
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<Column size={2} label="Progress">
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<ProgressBar now={downloadPercentage} label={`${downloadPercentage.toFixed(2)}% `} animated={!finished} />
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</Column>
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<Column size={2} label="Down Speed">{statsResponse.download_speed.human_readable}</Column>
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<Column label="ETA">{getCompletionETA(statsResponse)}</Column>
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<Column size={2} label="Peers">{`${statsResponse.snapshot.peer_stats.live} / ${statsResponse.snapshot.peer_stats.seen}`}</Column >
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</>
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: <Column label="Loading stats" size={8}><Spinner /></Column>
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}
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</Row >
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);
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}
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const Column: React.FC<{
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label: string,
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size?: number,
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children?: any
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}> = ({ size, label, children }) => (
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<Col md={size || 1} className='py-3'>
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<div className='fw-bold'>{label}</div>
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{children}
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</Col>
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);
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const Torrent = ({ id, torrent }) => {
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const [detailsResponse, updateDetailsResponse] = useState<TorrentDetails>(null);
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const [statsResponse, updateStatsResponse] = useState<TorrentStats>(null);
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// Update details once.
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useEffect(() => {
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if (detailsResponse === null) {
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return loopUntilSuccess(async () => {
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await API.getTorrentDetails(torrent.id).then(updateDetailsResponse);
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}, 1000);
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}
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}, [detailsResponse]);
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// Update stats once then forever.
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useEffect(() => customSetInterval((async () => {
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const errorInterval = 10000;
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const liveInterval = 500;
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const finishedInterval = 5000;
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return API.getTorrentStats(torrent.id).then((stats) => {
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updateStatsResponse(stats);
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return torrentIsDone(stats) ? finishedInterval : liveInterval;
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}, (e) => {
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return errorInterval;
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});
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}), 0), []);
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return <TorrentRow id={id} detailsResponse={detailsResponse} statsResponse={statsResponse} />
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}
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const TorrentsList = (props: { torrents: Array<TorrentId>, loading: boolean }) => {
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if (props.torrents === null && props.loading) {
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return <Spinner />
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}
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// The app either just started, or there was an error loading torrents.
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if (props.torrents === null) {
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return;
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}
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if (props.torrents.length === 0) {
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return <div className="text-center">
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<p>No existing torrents found. Add them through buttons below.</p>
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</div>;
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}
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return <>
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{props.torrents.map((t: TorrentId) =>
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<Torrent id={t.id} key={t.id} torrent={t} />
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)}
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</>;
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};
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const Root = () => {
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const [closeableError, setCloseableError] = useState<Error>(null);
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const [otherError, setOtherError] = useState<Error>(null);
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const [torrents, setTorrents] = useState<Array<TorrentId>>(null);
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const [torrentsLoading, setTorrentsLoading] = useState(false);
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const refreshTorrents = async () => {
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setTorrentsLoading(true);
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let torrents = await API.listTorrents().finally(() => setTorrentsLoading(false));
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setTorrents(torrents.torrents);
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};
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useEffect(() => {
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return customSetInterval(async () =>
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refreshTorrents().then(() => {
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setOtherError(null);
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return 5000;
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}, (e) => {
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setOtherError({ text: 'Error refreshing torrents', details: e });
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console.error(e);
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return 5000;
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}), 0);
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}, []);
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const context: ContextType = {
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setCloseableError,
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refreshTorrents,
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}
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return <AppContext.Provider value={context}>
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<div className='text-center'>
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<h1 className="mt-3 mb-4">rqbit web 0.0.1-alpha</h1>
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<RootContent
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closeableError={closeableError}
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otherError={otherError}
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torrents={torrents}
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torrentsLoading={torrentsLoading} />
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</div>
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</AppContext.Provider >
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}
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const ErrorDetails = (props: { details: ErrorDetails }) => {
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let { details } = props;
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if (!details) {
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return null;
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}
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return <>
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{details.status && <strong>{details.status} {details.statusText}: </strong>}
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{details.text}
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</>
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}
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const ErrorComponent = (props: { error: Error, remove?: () => void }) => {
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let { error, remove } = props;
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if (error == null) {
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return null;
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}
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return (<Alert variant='danger' onClose={remove} dismissible={remove != null}>
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<Alert.Heading>{error.text}</Alert.Heading>
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<ErrorDetails details={error.details} />
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</Alert>);
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};
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const UploadButton = ({ buttonText, onClick, data, resetData, variant }) => {
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const [loading, setLoading] = useState(false);
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const [fileList, setFileList] = useState([]);
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const [fileListError, setFileListError] = useState(null);
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const ctx = useContext(AppContext);
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const showModal = data !== null || fileListError !== null;
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// Get the torrent file list if there's data.
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useEffect(() => {
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if (data === null) {
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return;
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}
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let t = setTimeout(async () => {
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setLoading(true);
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try {
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const response = await API.uploadTorrent(data, { listOnly: true });
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setFileList(response.details.files);
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} catch (e) {
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setFileListError({ text: 'Error listing torrent', details: e });
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} finally {
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setLoading(false);
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}
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}, 0);
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return () => clearTimeout(t);
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}, [data]);
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const clear = () => {
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resetData();
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setFileListError(null);
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setFileList([]);
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setLoading(false);
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}
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return (
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<>
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<Button variant={variant} onClick={onClick} className='m-1'>
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{buttonText}
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</Button>
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<FileSelectionModal
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show={showModal}
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onHide={clear}
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fileListError={fileListError}
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fileList={fileList}
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data={data}
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fileListLoading={loading}
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/>
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</>
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);
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};
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const MagnetInput = () => {
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let [magnet, setMagnet] = useState(null);
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const onClick = () => {
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const m = prompt('Enter magnet link or HTTP(s) URL');
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setMagnet(m === '' ? null : m);
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};
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return (
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<UploadButton variant='primary' buttonText="Add Torrent from Magnet Link" onClick={onClick} data={magnet} resetData={() => setMagnet(null)} />
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);
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};
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const FileInput = () => {
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const inputRef = useRef<HTMLInputElement>();
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const [file, setFile] = useState(null);
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const onFileChange = async () => {
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const file = inputRef.current.files[0];
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setFile(file);
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};
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const reset = () => {
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inputRef.current.value = '';
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setFile(null);
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}
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const onClick = () => {
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inputRef.current.click();
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}
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return (
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<>
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<input type="file" ref={inputRef} accept=".torrent" onChange={onFileChange} className='d-none' />
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<UploadButton variant='secondary' buttonText="Upload .torrent File" onClick={onClick} data={file} resetData={reset} />
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</>
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);
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};
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const FileSelectionModal = (props: {
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show: boolean,
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onHide: () => void,
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fileList: Array<TorrentFile>,
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fileListError: Error,
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fileListLoading: boolean,
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data: string | File
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}) => {
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let { show, onHide, fileList, fileListError, fileListLoading, data } = props;
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const [selectedFiles, setSelectedFiles] = useState([]);
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const [uploading, setUploading] = useState(false);
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const [uploadError, setUploadError] = useState<Error>(null);
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const ctx = useContext(AppContext);
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useEffect(() => {
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setSelectedFiles(fileList.map((_, id) => id));
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}, [fileList]);
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const clear = () => {
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onHide();
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setSelectedFiles([]);
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setUploadError(null);
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setUploading(false);
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}
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const handleToggleFile = (toggledId: number) => {
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if (selectedFiles.includes(toggledId)) {
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setSelectedFiles(selectedFiles.filter((i) => i !== toggledId));
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} else {
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setSelectedFiles([...selectedFiles, toggledId]);
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}
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};
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const handleUpload = async () => {
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setUploading(true);
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API.uploadTorrent(data, { selectedFiles }).then(
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() => {
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onHide();
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ctx.refreshTorrents();
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},
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(e) => {
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setUploadError({ text: 'Error starting torrent', details: e });
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}
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).finally(() => setUploading(false));
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};
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return (
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<Modal show={show} onHide={clear} size='lg'>
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<Modal.Header closeButton>
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{!!fileListError || <Modal.Title>Select Files</Modal.Title>}
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</Modal.Header>
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<Modal.Body>
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{fileListLoading ? <Spinner />
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: fileListError ? <ErrorComponent error={fileListError}></ErrorComponent> :
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<Form>
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{fileList.map((file, index) => (
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<Form.Group key={index} controlId={`check-${index}`}>
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<Form.Check
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type="checkbox"
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label={`${file.name} (${formatBytes(file.length)})`}
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checked={selectedFiles.includes(index)}
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onChange={() => handleToggleFile(index)}>
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</Form.Check>
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</Form.Group>
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))}
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</Form>
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}
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<ErrorComponent error={uploadError} />
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</Modal.Body>
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<Modal.Footer>
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{uploading && <Spinner />}
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<Button variant="primary" onClick={handleUpload} disabled={fileListLoading || uploading || selectedFiles.length == 0}>
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OK
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</Button>
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<Button variant="secondary" onClick={clear}>
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Cancel
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</Button>
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</Modal.Footer>
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</Modal >
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);
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};
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const Buttons = () => {
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return (
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<div id="buttons-container" className="mt-3">
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<MagnetInput />
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<FileInput />
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</div>
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);
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};
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const RootContent = (props: { closeableError: ErrorDetails, otherError: ErrorDetails, torrents: Array<TorrentId>, torrentsLoading: boolean }) => {
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let ctx = useContext(AppContext);
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return <Container>
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<ErrorComponent error={props.closeableError} remove={() => ctx.setCloseableError(null)} />
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<ErrorComponent error={props.otherError} />
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<TorrentsList torrents={props.torrents} loading={props.torrentsLoading} />
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<Buttons />
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</Container>
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};
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function torrentIsDone(stats: TorrentStats): boolean {
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return stats.snapshot.have_bytes == stats.snapshot.total_bytes;
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}
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function formatBytes(bytes: number): string {
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if (bytes === 0) return '0 Bytes';
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const k = 1024;
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const sizes = ['Bytes', 'KB', 'MB', 'GB'];
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const i = Math.floor(Math.log(bytes) / Math.log(k));
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return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
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}
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function getLargestFileName(torrentDetails: TorrentDetails): string {
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const largestFile = torrentDetails.files.filter(
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(f) => f.included
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).reduce(
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(prev: any, current: any) => (prev.length > current.length) ? prev : current
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);
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return largestFile.name;
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}
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function getCompletionETA(stats: TorrentStats): string {
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if (stats.time_remaining && stats.time_remaining.duration) {
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return formatSecondsToTime(stats.time_remaining.duration.secs);
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} else {
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return 'N/A';
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}
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}
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function formatSecondsToTime(seconds: number): string {
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const hours = Math.floor(seconds / 3600);
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const minutes = Math.floor((seconds % 3600) / 60);
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const remainingSeconds = seconds % 60;
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const formatUnit = (value: number, unit: string) => (value > 0 ? `${value}${unit}` : '');
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if (hours > 0) {
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return `${formatUnit(hours, 'h')} ${formatUnit(minutes, 'm')}`.trim();
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} else if (minutes > 0) {
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return `${formatUnit(minutes, 'm')} ${formatUnit(remainingSeconds, 's')}`.trim();
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} else {
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return `${formatUnit(remainingSeconds, 's')}`.trim();
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}
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}
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// Run a function with initial interval, then run it forever with the interval that the
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// callback returns.
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// Returns a callback to clear it.
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function customSetInterval(asyncCallback: () => Promise<number>, initialInterval: number): () => void {
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let timeoutId: number;
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let currentInterval: number = initialInterval;
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const executeCallback = async () => {
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currentInterval = await asyncCallback();
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if (currentInterval === null || currentInterval === undefined) {
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throw 'asyncCallback returned null or undefined';
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}
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scheduleNext();
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}
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let scheduleNext = () => {
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timeoutId = setTimeout(executeCallback, currentInterval);
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}
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scheduleNext();
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return () => {
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clearTimeout(timeoutId);
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};
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}
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function loopUntilSuccess<T>(callback: () => Promise<T>, interval: number): () => void {
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let timeoutId: number;
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const executeCallback = async () => {
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let retry = await callback().then(() => false, () => true);
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if (retry) {
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scheduleNext();
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}
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}
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let scheduleNext = (overrideInterval?: number) => {
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timeoutId = setTimeout(executeCallback, overrideInterval !== undefined ? overrideInterval : interval);
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}
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scheduleNext(0);
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return () => clearTimeout(timeoutId);
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}
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// List all torrents on page load and set up auto-refresh
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async function init(): Promise<void> {
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const torrentsContainer = document.getElementById('app');
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ReactDOM.createRoot(torrentsContainer).render(<StrictMode><Root /></StrictMode>);
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}
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// Call init function on page load
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document.addEventListener('DOMContentLoaded', init); |