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|
import * as React from 'react';
import { useRecoilState } from 'recoil';
import { DelayMapping, ProxiesMapping, ProxyItem } from 'src/store/types';
import {
// types
NonProxyTypes,
// atom
proxyFilterText,
} from '../../store/proxies';
const { useMemo } = React;
function filterAvailableProxies(list: string[], delay: DelayMapping) {
return list.filter((name) => {
const d = delay[name];
if (d === undefined) {
return true;
}
if (d.number === 0) {
return false;
} else {
return true;
}
});
}
const getSortDelay = (
d:
| undefined
| {
number?: number;
},
proxyInfo: ProxyItem
) => {
if (d && typeof d.number === 'number' && d.number > 0) {
return d.number;
}
const type = proxyInfo && proxyInfo.type;
if (type && NonProxyTypes.indexOf(type) > -1) return -1;
return 999999;
};
const ProxySortingFns = {
Natural: (proxies: string[]) => proxies,
LatencyAsc: (
proxies: string[],
delay: DelayMapping,
proxyMapping?: ProxiesMapping
) => {
return proxies.sort((a, b) => {
const d1 = getSortDelay(delay[a], proxyMapping && proxyMapping[a]);
const d2 = getSortDelay(delay[b], proxyMapping && proxyMapping[b]);
return d1 - d2;
});
},
LatencyDesc: (
proxies: string[],
delay: DelayMapping,
proxyMapping?: ProxiesMapping
) => {
return proxies.sort((a, b) => {
const d1 = getSortDelay(delay[a], proxyMapping && proxyMapping[a]);
const d2 = getSortDelay(delay[b], proxyMapping && proxyMapping[b]);
return d2 - d1;
});
},
NameAsc: (proxies: string[]) => {
return proxies.sort();
},
NameDesc: (proxies: string[]) => {
return proxies.sort((a, b) => {
if (a > b) return -1;
if (a < b) return 1;
return 0;
});
},
};
function filterStrArr(all: string[], searchText: string) {
const segments = searchText
.toLowerCase()
.split(' ')
.map((x) => x.trim())
.filter((x) => !!x);
if (segments.length === 0) return all;
return all.filter((name) => {
let i = 0;
for (; i < segments.length; i++) {
const seg = segments[i];
if (name.toLowerCase().indexOf(seg) > -1) return true;
}
return false;
});
}
function filterAvailableProxiesAndSort(
all: string[],
delay: DelayMapping,
hideUnavailableProxies: boolean,
filterText: string,
proxySortBy: string,
proxies?: ProxiesMapping
) {
// all is freezed
let filtered = [...all];
if (hideUnavailableProxies) {
filtered = filterAvailableProxies(all, delay);
}
if (typeof filterText === 'string' && filterText !== '') {
filtered = filterStrArr(filtered, filterText);
}
return ProxySortingFns[proxySortBy](filtered, delay, proxies);
}
export function useFilteredAndSorted(
all: string[],
delay: DelayMapping,
hideUnavailableProxies: boolean,
proxySortBy: string,
proxies?: ProxiesMapping
) {
const [filterText] = useRecoilState(proxyFilterText);
return useMemo(
() =>
filterAvailableProxiesAndSort(
all,
delay,
hideUnavailableProxies,
filterText,
proxySortBy,
proxies
),
[all, delay, hideUnavailableProxies, filterText, proxySortBy, proxies]
);
}
|
