James Long
40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
import { GlobalBus, type GlobalEvent } from "@/bus/global"
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import { Effect } from "effect"
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export function waitEvent(input: { timeout: number; signal?: AbortSignal; fn: (event: GlobalEvent) => boolean }) {
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if (input.signal?.aborted) return Effect.fail(input.signal.reason ?? new Error("Request aborted"))
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return Effect.callback<void, unknown>((resume) => {
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const abort = () => {
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cleanup()
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resume(Effect.fail(input.signal?.reason ?? new Error("Request aborted")))
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}
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const handler = (event: GlobalEvent) => {
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try {
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if (!input.fn(event)) return
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cleanup()
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resume(Effect.void)
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} catch (error) {
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cleanup()
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resume(Effect.fail(error))
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}
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}
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const cleanup = () => {
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clearTimeout(timeout)
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GlobalBus.off("event", handler)
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input.signal?.removeEventListener("abort", abort)
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}
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const timeout = setTimeout(() => {
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cleanup()
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resume(Effect.fail(new Error("Timed out waiting for global event")))
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}, input.timeout)
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GlobalBus.on("event", handler)
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input.signal?.addEventListener("abort", abort, { once: true })
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return Effect.sync(cleanup)
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})
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}
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