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import * as React from 'react';
import { useRecoilState } from 'recoil';
import { ConnectionItem } from '~/api/connections';
import * as connAPI from '~/api/connections';
import {
closedConnectionsState,
connectionsState,
FormattedConn,
isRefreshPausedState,
MAX_CLOSED_CONNECTIONS,
} from '~/store/connections';
import { ClashAPIConfig } from '~/types';
import {
ALL_SOURCE_IP,
arrayToIdKv,
CONNECTION_COLUMNS_DEFAULT,
ConnectionColumn,
filterConns,
formatConnectionDataItem,
getInitialColumns,
getInitialHiddenColumns,
getInitialSourceMap,
getNameFromSource,
HIDDEN_COLUMNS_DEFAULT,
saveColumns,
saveHiddenColumns,
saveSourceMap,
SourceMapItem,
} from './utils';
const { useCallback, useEffect, useMemo, useRef, useState } = React;
export function useSourceMapState() {
const [sourceMapModal, setSourceMapModal] = useState(false);
const [sourceMap, setSourceMap] = useState<SourceMapItem[]>(() => getInitialSourceMap());
const openModalSource = useCallback(() => {
setSourceMap((prev) => (prev.length === 0 ? [{ reg: '', name: '' }] : prev));
setSourceMapModal(true);
}, []);
const closeModalSource = useCallback(() => {
setSourceMap((prev) => {
const nextSourceMap = prev.filter((item) => item.reg || item.name);
saveSourceMap(nextSourceMap);
return nextSourceMap;
});
setSourceMapModal(false);
}, []);
return {
sourceMap,
setSourceMap,
sourceMapModal,
openModalSource,
closeModalSource,
};
}
export function useConnectionsStream(apiConfig: ClashAPIConfig, sourceMap: SourceMapItem[]) {
const [conns, setConns] = useRecoilState(connectionsState);
const [closedConns, setClosedConns] = useRecoilState(closedConnectionsState);
const [isRefreshPaused, setIsRefreshPaused] = useRecoilState(isRefreshPausedState);
const [reConnectCount, setReConnectCount] = useState(0);
const prevConnsRef = useRef<FormattedConn[]>(conns);
const toggleIsRefreshPaused = useCallback(() => {
setIsRefreshPaused((value) => !value);
}, [setIsRefreshPaused]);
const closeAllConnections = useCallback(() => {
connAPI.closeAllConnections(apiConfig);
}, [apiConfig]);
const read = useCallback(
({ connections }: { connections: ConnectionItem[] }) => {
const prevConnsKv = arrayToIdKv(prevConnsRef.current);
const now = Date.now();
const nextConnections =
connections?.map((item: ConnectionItem) =>
formatConnectionDataItem(item, prevConnsKv, now, sourceMap)
) ?? [];
const closed: FormattedConn[] = [];
for (const connection of prevConnsRef.current) {
const idx = nextConnections.findIndex((conn) => conn.id === connection.id);
if (idx < 0) closed.push(connection);
}
if (closed.length > 0) {
setClosedConns((prev) => [...closed, ...prev].slice(0, MAX_CLOSED_CONNECTIONS + 1));
}
if (
nextConnections &&
(nextConnections.length !== 0 || prevConnsRef.current.length !== 0) &&
!isRefreshPaused
) {
prevConnsRef.current = nextConnections;
setConns(nextConnections);
} else {
prevConnsRef.current = nextConnections;
}
},
[isRefreshPaused, setClosedConns, setConns, sourceMap]
);
useEffect(() => {
return connAPI.fetchData(apiConfig, read, () => {
setTimeout(() => {
setReConnectCount((prev) => prev + 1);
}, 1000);
});
}, [apiConfig, read, reConnectCount]);
return {
conns,
closedConns,
isRefreshPaused,
toggleIsRefreshPaused,
closeAllConnections,
};
}
export function useConnectionColumns() {
const [hiddenColumns, setHiddenColumnsState] = useState<string[]>(() =>
getInitialHiddenColumns()
);
const [columns, setColumnsState] = useState<ConnectionColumn[]>(() => getInitialColumns());
const setHiddenColumns = useCallback((nextHiddenColumns: string[]) => {
setHiddenColumnsState(nextHiddenColumns);
saveHiddenColumns(nextHiddenColumns);
}, []);
const setColumns = useCallback((nextColumns: ConnectionColumn[]) => {
setColumnsState(nextColumns);
saveColumns(nextColumns);
}, []);
const resetColumns = useCallback(() => {
setHiddenColumnsState([...HIDDEN_COLUMNS_DEFAULT]);
setColumnsState([...CONNECTION_COLUMNS_DEFAULT]);
saveHiddenColumns([...HIDDEN_COLUMNS_DEFAULT]);
saveColumns([...CONNECTION_COLUMNS_DEFAULT]);
}, []);
return {
hiddenColumns,
columns,
setHiddenColumns,
setColumns,
resetColumns,
};
}
export function useConnectionFilters({
conns,
closedConns,
sourceMap,
t,
}: {
conns: FormattedConn[];
closedConns: FormattedConn[];
sourceMap: SourceMapItem[];
t: (key: string) => string;
}) {
const [filterKeyword, setFilterKeyword] = useState('');
const [filterSourceIpStr, setFilterSourceIpStr] = useState(ALL_SOURCE_IP);
const filteredConns = useMemo(
() => filterConns(conns, filterKeyword, filterSourceIpStr),
[conns, filterKeyword, filterSourceIpStr]
);
const filteredClosedConns = useMemo(
() => filterConns(closedConns, filterKeyword, filterSourceIpStr),
[closedConns, filterKeyword, filterSourceIpStr]
);
const connIpSet = useMemo(() => {
return [
[ALL_SOURCE_IP, t('All')],
...Array.from(new Set(conns.map((x) => x.sourceIP)))
.sort()
.map((value) => [value, getNameFromSource(value, sourceMap).trim() || t('internel')]),
];
}, [conns, sourceMap, t]);
return {
filterKeyword,
setFilterKeyword,
filterSourceIpStr,
setFilterSourceIpStr,
filteredConns,
filteredClosedConns,
connIpSet,
};
}
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