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index.tsx
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index.tsx
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// Copyright 2017-2024 @polkadot/apps authors & contributors
// SPDX-License-Identifier: Apache-2.0
import type { LinkOption } from '@polkadot/apps-config/endpoints/types';
import type { Group } from './types.js';
// ok, this seems to be an eslint bug, this _is_ a package import
import punycode from 'punycode/';
import React, { useCallback, useMemo, useRef, useState } from 'react';
import store from 'store';
import { createWsEndpoints, CUSTOM_ENDPOINT_KEY } from '@polkadot/apps-config';
import { Button, Input, Sidebar, styled } from '@polkadot/react-components';
import { settings } from '@polkadot/ui-settings';
import { isAscii } from '@polkadot/util';
import { useTranslation } from '../translate.js';
import GroupDisplay from './Group.js';
interface Props {
className?: string;
offset?: number | string;
onClose: () => void;
}
interface UrlState {
apiUrl: string;
groupIndex: number;
hasUrlChanged: boolean;
isUrlValid: boolean;
}
const STORAGE_AFFINITIES = 'network:affinities';
function isValidUrl (url: string): boolean {
return (
// some random length... we probably want to parse via some lib
(url.length >= 7) &&
// check that it starts with a valid ws identifier
(url.startsWith('ws://') || url.startsWith('wss://') || url.startsWith('light://'))
);
}
function combineEndpoints (endpoints: LinkOption[]): Group[] {
return endpoints.reduce((result: Group[], e): Group[] => {
if (e.isHeader) {
result.push({ header: e.text, isDevelopment: e.isDevelopment, isSpaced: e.isSpaced, networks: [] });
} else {
const prev = result[result.length - 1];
const prov = { isLightClient: e.isLightClient, name: e.textBy, url: e.value };
if (prev.networks[prev.networks.length - 1] && e.text === prev.networks[prev.networks.length - 1].name) {
prev.networks[prev.networks.length - 1].providers.push(prov);
} else if (!e.isUnreachable) {
prev.networks.push({
isChild: e.isChild,
isRelay: !!e.genesisHash,
name: e.text as string,
nameRelay: e.textRelay as string,
paraId: e.paraId,
providers: [prov],
ui: e.ui
});
}
}
return result;
}, []);
}
function getCustomEndpoints (): string[] {
try {
const storedAsset = localStorage.getItem(CUSTOM_ENDPOINT_KEY);
if (storedAsset) {
return JSON.parse(storedAsset) as string[];
}
} catch (e) {
console.error(e);
// ignore error
}
return [];
}
function extractUrlState (apiUrl: string, groups: Group[]): UrlState {
let groupIndex = groups.findIndex(({ networks }) =>
networks.some(({ providers }) =>
providers.some(({ url }) => url === apiUrl)
)
);
if (groupIndex === -1) {
groupIndex = groups.findIndex(({ isDevelopment }) => isDevelopment);
}
return {
apiUrl,
groupIndex,
hasUrlChanged: settings.get().apiUrl !== apiUrl,
isUrlValid: isValidUrl(apiUrl)
};
}
function loadAffinities (groups: Group[]): Record<string, string> {
return Object
.entries<string>(store.get(STORAGE_AFFINITIES) as Record<string, string> || {})
.filter(([network, apiUrl]) =>
groups.some(({ networks }) =>
networks.some(({ name, providers }) =>
name === network && providers.some(({ url }) => url === apiUrl)
)
)
)
.reduce((result: Record<string, string>, [network, apiUrl]): Record<string, string> => ({
...result,
[network]: apiUrl
}), {});
}
function isSwitchDisabled (hasUrlChanged: boolean, apiUrl: string, isUrlValid: boolean): boolean {
if (!hasUrlChanged) {
if (store.get('isLocalFork')) {
return false;
} else {
return true;
}
} else if (apiUrl.startsWith('light://')) {
return false;
} else if (isUrlValid) {
return false;
}
return true;
}
function isLocalForkDisabled (hasUrlChanged: boolean, apiUrl: string, isUrlValid: boolean): boolean {
if (!hasUrlChanged) {
if (store.get('isLocalFork')) {
return true;
} else {
return false;
}
} else if (apiUrl.startsWith('light://')) {
return true;
} else if (isUrlValid) {
return false;
}
return true;
}
function Endpoints ({ className = '', offset, onClose }: Props): React.ReactElement<Props> {
const { t } = useTranslation();
const linkOptions = createWsEndpoints(t);
const [groups, setGroups] = useState(() => combineEndpoints(linkOptions));
const [{ apiUrl, groupIndex, hasUrlChanged, isUrlValid }, setApiUrl] = useState<UrlState>(() => extractUrlState(settings.get().apiUrl, groups));
const [storedCustomEndpoints, setStoredCustomEndpoints] = useState<string[]>(() => getCustomEndpoints());
const [affinities, setAffinities] = useState(() => loadAffinities(groups));
const sidebarRef = useRef<HTMLDivElement>(null);
const isKnownUrl = useMemo(() => {
let result = false;
linkOptions.some((endpoint) => {
if (endpoint.value === apiUrl) {
result = true;
return true;
}
return false;
});
return result;
}, [apiUrl, linkOptions]);
const isSavedCustomEndpoint = useMemo(() => {
let result = false;
storedCustomEndpoints.some((endpoint) => {
if (endpoint === apiUrl) {
result = true;
return true;
}
return false;
});
return result;
}, [apiUrl, storedCustomEndpoints]);
const _changeGroup = useCallback(
(groupIndex: number) => setApiUrl((state) => ({ ...state, groupIndex })),
[]
);
const _removeApiEndpoint = useCallback(
(): void => {
if (!isSavedCustomEndpoint) {
return;
}
const newStoredCurstomEndpoints = storedCustomEndpoints.filter((url) => url !== apiUrl);
try {
localStorage.setItem(CUSTOM_ENDPOINT_KEY, JSON.stringify(newStoredCurstomEndpoints));
setGroups(combineEndpoints(createWsEndpoints(t)));
setStoredCustomEndpoints(getCustomEndpoints());
} catch (e) {
console.error(e);
// ignore error
}
},
[apiUrl, isSavedCustomEndpoint, storedCustomEndpoints, t]
);
const _setApiUrl = useCallback(
(network: string, apiUrl: string): void => {
setAffinities((affinities): Record<string, string> => {
const newValue = { ...affinities, [network]: apiUrl };
store.set(STORAGE_AFFINITIES, newValue);
return newValue;
});
setApiUrl(extractUrlState(apiUrl, groups));
},
[groups]
);
const _onChangeCustom = useCallback(
(apiUrl: string): void => {
if (!isAscii(apiUrl)) {
apiUrl = punycode.toASCII(apiUrl);
}
setApiUrl(extractUrlState(apiUrl, groups));
},
[groups]
);
const _onApply = useCallback(
(): void => {
store.set('isLocalFork', false);
settings.set({ ...(settings.get()), apiUrl });
window.location.assign(`${window.location.origin}${window.location.pathname}?rpc=${encodeURIComponent(apiUrl)}${window.location.hash}`);
if (!hasUrlChanged) {
window.location.reload();
}
onClose();
},
[apiUrl, onClose, hasUrlChanged]
);
const _onLocalFork = useCallback(
(): void => {
store.set('isLocalFork', true);
settings.set({ ...(settings.get()), apiUrl });
window.location.assign(`${window.location.origin}${window.location.pathname}?rpc=${encodeURIComponent(apiUrl)}${window.location.hash}`);
if (!hasUrlChanged) {
window.location.reload();
}
onClose();
},
[apiUrl, onClose, hasUrlChanged]
);
const _saveApiEndpoint = useCallback(
(): void => {
try {
localStorage.setItem(CUSTOM_ENDPOINT_KEY, JSON.stringify([...storedCustomEndpoints, apiUrl]));
_onApply();
} catch (e) {
console.error(e);
// ignore error
}
},
[_onApply, apiUrl, storedCustomEndpoints]
);
const canSwitch = useMemo(
() => isSwitchDisabled(hasUrlChanged, apiUrl, isUrlValid),
[hasUrlChanged, apiUrl, isUrlValid]
);
const canLocalFork = useMemo(
() => isLocalForkDisabled(hasUrlChanged, apiUrl, isUrlValid),
[hasUrlChanged, apiUrl, isUrlValid]
);
return (
<StyledSidebar
button={
<Button
icon='sync'
isDisabled={canSwitch}
label={t('Switch')}
onClick={_onApply}
/>
}
className={className}
offset={offset}
onClose={onClose}
position='left'
secondaryButton={
<Button
icon='code-fork'
isDisabled={canLocalFork}
label={t('Fork Locally')}
onClick={_onLocalFork}
tooltip='fork-locally-btn'
/>
}
sidebarRef={sidebarRef}
>
{groups.map((group, index): React.ReactNode => (
<GroupDisplay
affinities={affinities}
apiUrl={apiUrl}
index={index}
isSelected={groupIndex === index}
key={index}
setApiUrl={_setApiUrl}
setGroup={_changeGroup}
value={group}
>
{group.isDevelopment && (
<div className='endpointCustomWrapper'>
<Input
className='endpointCustom'
isError={!isUrlValid}
isFull
label={t('custom endpoint')}
onChange={_onChangeCustom}
value={apiUrl}
/>
{isSavedCustomEndpoint
? (
<Button
className='customButton'
icon='trash-alt'
onClick={_removeApiEndpoint}
/>
)
: (
<Button
className='customButton'
icon='save'
isDisabled={!isUrlValid || isKnownUrl}
onClick={_saveApiEndpoint}
/>
)
}
</div>
)}
</GroupDisplay>
))}
</StyledSidebar>
);
}
const StyledSidebar = styled(Sidebar)`
color: var(--color-text);
padding-top: 3.5rem;
.customButton {
position: absolute;
top: 1rem;
right: 1rem;
}
.endpointCustom {
input {
padding-right: 4rem;
}
}
.endpointCustomWrapper {
position: relative;
}
`;
export default React.memo(Endpoints);