| 1 | import type { DesktopBridge, DesktopDiscoveredSshHost } from "@t3tools/contracts"; |
| 2 | import * as Effect from "effect/Effect"; |
| 3 | import * as Schema from "effect/Schema"; |
| 4 | import { Atom } from "effect/reactivity"; |
| 5 | |
| 6 | type DesktopSshDiscoveryBridge = Pick<DesktopBridge, "discoverSshHosts">; |
| 7 | |
| 8 | /** Filters and ranks SSH host suggestions as the user types in the host field. */ |
| 9 | export function filterDiscoveredSshHosts( |
| 10 | hosts: ReadonlyArray<DesktopDiscoveredSshHost>, |
| 11 | query: string, |
| 12 | ): ReadonlyArray<DesktopDiscoveredSshHost> { |
| 13 | const normalizedQuery = query.trim().toLowerCase(); |
| 14 | if (normalizedQuery.length === 0) return hosts; |
| 15 | |
| 16 | const prefixMatches: Array<DesktopDiscoveredSshHost> = []; |
| 17 | const substringMatches: Array<DesktopDiscoveredSshHost> = []; |
| 18 | for (const host of hosts) { |
| 19 | const alias = host.alias.toLowerCase(); |
| 20 | if (alias.startsWith(normalizedQuery)) { |
| 21 | prefixMatches.push(host); |
| 22 | } else if (alias.includes(normalizedQuery)) { |
| 23 | substringMatches.push(host); |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | return [...prefixMatches, ...substringMatches]; |
| 28 | } |
| 29 | |
| 30 | class DesktopSshDiscoveryUnavailableError extends Schema.TaggedError<DesktopSshDiscoveryUnavailableError>()( |
| 31 | "DesktopSshDiscoveryUnavailableError", |
| 32 | {}, |
| 33 | ) { |
| 34 | override get message(): string { |
| 35 | return "Desktop SSH host discovery is unavailable."; |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | class DesktopSshDiscoveryError extends Schema.TaggedError<DesktopSshDiscoveryError>()( |
| 40 | "DesktopSshDiscoveryError", |
| 41 | { cause: Schema.Defect() }, |
| 42 | ) { |
| 43 | override get message(): string { |
| 44 | return "Failed to discover SSH hosts."; |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | function getDesktopSshDiscoveryBridge(): DesktopSshDiscoveryBridge | undefined { |
| 49 | return typeof window === "undefined" ? undefined : window.desktopBridge; |
| 50 | } |
| 51 | |
| 52 | export function createDesktopSshHostsStateAtom( |
| 53 | getBridge: () => DesktopSshDiscoveryBridge | undefined, |
| 54 | ) { |
| 55 | const discoverDesktopSshHosts = Effect.fn("discoverDesktopSshHosts")(function* () { |
| 56 | const bridge = getBridge(); |
| 57 | if (!bridge) { |
| 58 | return yield* new DesktopSshDiscoveryUnavailableError(); |
| 59 | } |
| 60 | return yield* Effect.tryPromise({ |
| 61 | try: (): Promise<ReadonlyArray<DesktopDiscoveredSshHost>> => bridge.discoverSshHosts(), |
| 62 | catch: (cause) => new DesktopSshDiscoveryError({ cause }), |
| 63 | }); |
| 64 | }); |
| 65 | |
| 66 | return Atom.make(discoverDesktopSshHosts()).pipe( |
| 67 | Atom.swr({ staleTime: 30_000, revalidateOnMount: true }), |
| 68 | Atom.keepAlive, |
| 69 | Atom.withLabel("desktop:ssh-hosts"), |
| 70 | ); |
| 71 | } |
| 72 | |
| 73 | export const desktopSshHostsStateAtom = createDesktopSshHostsStateAtom( |
| 74 | getDesktopSshDiscoveryBridge, |
| 75 | ); |