Make workspace machine ephemeral to limit polling (#1674)

site/src/pages/WorkspacePage/WorkspacePage.tsx

@@ -1,5 +1,5 @@
-import { useActor } from "@xstate/react"
-import React, { useContext, useEffect } from "react"
+import { useMachine } from "@xstate/react"
+import React, { useEffect } from "react"
 import { useParams } from "react-router-dom"
 import { ErrorSummary } from "../../components/ErrorSummary/ErrorSummary"
 import { FullScreenLoader } from "../../components/Loader/FullScreenLoader"
@@ -8,14 +8,13 @@ import { Stack } from "../../components/Stack/Stack"
 import { Workspace } from "../../components/Workspace/Workspace"
 import { firstOrItem } from "../../util/array"
 import { getWorkspaceStatus } from "../../util/workspace"
-import { XServiceContext } from "../../xServices/StateContext"
+import { workspaceMachine } from "../../xServices/workspace/workspaceXService"
 
 export const WorkspacePage: React.FC = () => {
   const { workspace: workspaceQueryParam } = useParams()
   const workspaceId = firstOrItem(workspaceQueryParam, null)
 
-  const xServices = useContext(XServiceContext)
-  const [workspaceState, workspaceSend] = useActor(xServices.workspaceXService)
+  const [workspaceState, workspaceSend] = useMachine(workspaceMachine)
   const { workspace, resources, getWorkspaceError, getResourcesError, builds } = workspaceState.context
   const workspaceStatus = getWorkspaceStatus(workspace?.latest_build)
 

site/src/xServices/StateContext.tsx

@@ -6,13 +6,11 @@ import { authMachine } from "./auth/authXService"
 import { buildInfoMachine } from "./buildInfo/buildInfoXService"
 import { siteRolesMachine } from "./roles/siteRolesXService"
 import { usersMachine } from "./users/usersXService"
-import { workspaceMachine } from "./workspace/workspaceXService"
 
 interface XServiceContextType {
   authXService: ActorRefFrom<typeof authMachine>
   buildInfoXService: ActorRefFrom<typeof buildInfoMachine>
   usersXService: ActorRefFrom<typeof usersMachine>
-  workspaceXService: ActorRefFrom<typeof workspaceMachine>
   siteRolesXService: ActorRefFrom<typeof siteRolesMachine>
 }
 
@@ -38,7 +36,6 @@ export const XServiceProvider: React.FC = ({ children }) => {
         authXService: useInterpret(authMachine),
         buildInfoXService: useInterpret(buildInfoMachine),
         usersXService: useInterpret(() => usersMachine.withConfig({ actions: { redirectToUsersPage } })),
-        workspaceXService: useInterpret(workspaceMachine),
         siteRolesXService: useInterpret(siteRolesMachine),
       }}
     >