124 lines
3.3 KiB
TypeScript
124 lines
3.3 KiB
TypeScript
![]() |
import { createContext, useEffect, useState } from 'react'
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import { engineCommandManager } from 'lib/singletons'
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import { CommandsContext } from 'components/CommandBar/CommandBarProvider'
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import { isDesktop } from 'lib/isDesktop'
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import { components } from 'lib/machine-api'
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import { reportRejection } from 'lib/trap'
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import { toSync } from 'lib/utils'
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export type MachinesListing = Array<
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components['schemas']['MachineInfoResponse']
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>
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export interface MachineManager {
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machines: MachinesListing
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machineApiIp: string | null
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currentMachine: components['schemas']['MachineInfoResponse'] | null
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noMachinesReason: () => string | undefined
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setCurrentMachine: (
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m: components['schemas']['MachineInfoResponse'] | null
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) => void
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}
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export const MachineManagerContext = createContext<MachineManager>({
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machines: [],
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machineApiIp: null,
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currentMachine: null,
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setCurrentMachine: (
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_: components['schemas']['MachineInfoResponse'] | null
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) => {},
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noMachinesReason: () => undefined,
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})
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export const MachineManagerProvider = ({
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children,
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}: {
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children: React.ReactNode
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}) => {
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const [machines, setMachines] = useState<MachinesListing>([])
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const [machineApiIp, setMachineApiIp] = useState<string | null>(null)
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const [currentMachine, setCurrentMachine] = useState<
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components['schemas']['MachineInfoResponse'] | null
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>(null)
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const commandBarActor = CommandsContext.useActorRef()
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// Get the reason message for why there are no machines.
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const noMachinesReason = (): string | undefined => {
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if (machines.length > 0) {
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return undefined
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}
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if (machineApiIp === null) {
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return 'Machine API server was not discovered'
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}
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return 'Machine API server was discovered, but no machines are available'
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}
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useEffect(() => {
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if (!isDesktop()) return
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const update = async () => {
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const _machineApiIp = await window.electron.getMachineApiIp()
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if (_machineApiIp === null) return
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setMachineApiIp(_machineApiIp)
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const _machines = await window.electron.listMachines(_machineApiIp)
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setMachines(_machines)
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}
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// Start a background job to update the machines every ten seconds.
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// If MDNS is already watching, this timeout will wait until it's done to trigger the
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// finding again.
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let timeoutId: ReturnType<typeof setTimeout> | undefined = undefined
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const timeoutLoop = () => {
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clearTimeout(timeoutId)
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timeoutId = setTimeout(
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toSync(async () => {
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await update()
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timeoutLoop()
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}, reportRejection),
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1000
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)
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}
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timeoutLoop()
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update().catch(reportRejection)
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}, [])
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// Update engineCommandManager's copy of this data.
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useEffect(() => {
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const machineManagerNext = {
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machines,
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machineApiIp,
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currentMachine,
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noMachinesReason,
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setCurrentMachine,
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}
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engineCommandManager.machineManager = machineManagerNext
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commandBarActor.send({
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type: 'Set machine manager',
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data: machineManagerNext,
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})
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}, [machines, machineApiIp, currentMachine])
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return (
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<MachineManagerContext.Provider
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value={{
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machines,
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machineApiIp,
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currentMachine,
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setCurrentMachine,
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noMachinesReason,
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}}
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>
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{' '}
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{children}{' '}
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</MachineManagerContext.Provider>
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)
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}
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