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feat: enables manual balancing of channels
User can manually balance channels using a slicer. The channels are shown in a modal after clicking a button. NOTE: this is a prototype, not working yet.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| import React, { useState } from 'react'; | ||
| import { PercentageOutlined, ReloadOutlined, SwapOutlined } from '@ant-design/icons'; | ||
| import styled from '@emotion/styled'; | ||
| import { Button, Col, Modal, Row, Slider } from 'antd'; | ||
| import { ChannelInfo, LightningNode, PreInvoice } from 'shared/types'; | ||
| import { LightningNodeChannel } from 'lib/lightning/types'; | ||
| import { useStoreActions, useStoreState } from 'store'; | ||
| import { Network } from 'types'; | ||
|
|
||
| const Styled = { | ||
| Button: styled(Button)` | ||
| width: 100%; | ||
| font-variant: small-caps; | ||
| `, | ||
| }; | ||
|
|
||
| interface Props { | ||
| network: Network; | ||
| } | ||
|
|
||
| const AutoBalanceButton: React.FC<Props> = ({ network }) => { | ||
| const { getChannels } = useStoreActions(s => s.lightning); | ||
| const { balanceChannels } = useStoreActions(s => s.network); | ||
| const { links } = useStoreState(s => s.designer.activeChart); | ||
| const { notify } = useStoreActions(s => s.app); | ||
| const [visible, setVisible] = useState(false); | ||
| const [info, setInfo] = useState([] as ChannelInfo[]); | ||
|
|
||
| const hideModal = () => setVisible(false); | ||
| const showModal = () => { | ||
| updateInfo(); | ||
| setVisible(true); | ||
| }; | ||
|
|
||
| const setNextBalance = (value: number, index: number) => { | ||
| info[index].nextLocalBalance = value; | ||
| setInfo([...info]); | ||
| }; | ||
|
|
||
| const autoBalance = () => { | ||
| for (let index = 0; index < info.length; index += 1) { | ||
| const { localBalance, remoteBalance } = info[index]; | ||
| const halfAmount = Math.floor((Number(localBalance) + Number(remoteBalance)) / 2); | ||
| info[index].nextLocalBalance = halfAmount; | ||
| } | ||
| setInfo([...info]); | ||
| }; | ||
|
|
||
| // Store all channels in an array and build a map nodeName->node. | ||
| async function updateInfo() { | ||
| const channels = [] as LightningNodeChannel[]; | ||
| const id2Node = {} as Record<string, LightningNode>; | ||
| const promisesToAwait = [] as Promise<unknown>[]; | ||
|
|
||
| for (const node of network.nodes.lightning) { | ||
| promisesToAwait.push( | ||
| getChannels(node).then((nodeChannels: LightningNodeChannel[]) => { | ||
| channels.push(...nodeChannels); | ||
| id2Node[node.name] = node; | ||
| }), | ||
| ); | ||
| } | ||
| await Promise.all(promisesToAwait); | ||
|
|
||
| const info = [] as ChannelInfo[]; | ||
| for (const channel of channels) { | ||
| const { uniqueId: id, localBalance, remoteBalance } = channel; | ||
| if (!links[id]) continue; | ||
| const from = links[id].from.nodeId; | ||
| const to = links[id].to.nodeId as string; | ||
| const nextLocalBalance = Number(localBalance); | ||
| info.push({ id, to, from, localBalance, remoteBalance, nextLocalBalance }); | ||
| } | ||
| setInfo(info); | ||
| } | ||
|
|
||
| async function updateChannels() { | ||
| const toPay = [] as PreInvoice[]; | ||
| for (const { id, localBalance, nextLocalBalance } of info) { | ||
| if (Number(localBalance) !== nextLocalBalance) { | ||
| toPay.push({ channelId: id, nextLocalBalance }); | ||
| } | ||
| } | ||
| balanceChannels({ id: network.id, toPay }) | ||
| .then(() => notify({ message: 'Channels balanced!' })) | ||
| .then(hideModal); | ||
| } | ||
|
|
||
| const CustomModalFooter = ( | ||
| <Row gutter={10} justify="end"> | ||
| <Col> | ||
| <Styled.Button onClick={hideModal}>Close</Styled.Button> | ||
| </Col> | ||
| <Col> | ||
| <Styled.Button onClick={updateChannels}>Update channels</Styled.Button> | ||
| </Col> | ||
| </Row> | ||
| ); | ||
|
|
||
| return ( | ||
| <> | ||
| <Button onClick={showModal}> | ||
| <SwapOutlined /> Balance channels | ||
| </Button> | ||
| <Modal | ||
| title="Balance Channels" | ||
| open={visible} | ||
| onCancel={hideModal} | ||
| footer={CustomModalFooter} | ||
| style={{ fontVariant: 'small-caps' }} | ||
| > | ||
| {/* sliders */} | ||
| {info.map((channel: ChannelInfo, index: number) => { | ||
| const { to, from, id, remoteBalance, localBalance, nextLocalBalance } = channel; | ||
| const total = Number(remoteBalance) + Number(localBalance); | ||
| return ( | ||
| <div key={id}> | ||
| <Row> | ||
| <Col span={12}> | ||
| {from} | ||
| <br /> | ||
| {nextLocalBalance} | ||
| </Col> | ||
| <Col span={12} style={{ textAlign: 'right' }}> | ||
| {to} | ||
| <br /> | ||
| {total - nextLocalBalance} | ||
| </Col> | ||
| </Row> | ||
| <Slider | ||
| value={nextLocalBalance} | ||
| onChange={value => setNextBalance(value, index)} | ||
| min={0} | ||
| max={total} | ||
| /> | ||
| </div> | ||
| ); | ||
| })} | ||
| {/* end sliders */} | ||
| <br /> | ||
| <Row gutter={10}> | ||
| <Col span={12}> | ||
| <Styled.Button onClick={updateInfo}> | ||
| <ReloadOutlined /> Refresh | ||
| </Styled.Button> | ||
| </Col> | ||
| <Col span={12}> | ||
| <Styled.Button onClick={autoBalance}> | ||
| <PercentageOutlined /> Auto Balance | ||
| </Styled.Button> | ||
| </Col> | ||
| </Row> | ||
| </Modal> | ||
| </> | ||
| ); | ||
| }; | ||
|
|
||
| export default AutoBalanceButton; |
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