0.2.0 (#18)

Co-authored-by: Renovate Bot <renovate-bot@valverde.cloud>
Co-authored-by: Julien Valverdé <julien.valverde@mailo.com>
Reviewed-on: Thilawyn/effect-fc#18

packages/effect-fc/src/SubscriptionRef.ts

@@ -0,0 +1,48 @@
+import { Effect, Equivalence, Ref, type Scope, Stream, SubscriptionRef } from "effect"
+import * as React from "react"
+import * as Component from "./Component.js"
+import * as SetStateAction from "./SetStateAction.js"
+
+
+export const useSubscriptionRefState: {
+    <A>(
+        ref: SubscriptionRef.SubscriptionRef<A>
+    ): Effect.Effect<readonly [A, React.Dispatch<React.SetStateAction<A>>], never, Scope.Scope>
+} = Effect.fnUntraced(function* <A>(ref: SubscriptionRef.SubscriptionRef<A>) {
+    const [reactStateValue, setReactStateValue] = React.useState(yield* Component.useOnMount(() => ref))
+
+    yield* Component.useReactEffect(() => Effect.forkScoped(
+        Stream.runForEach(
+            Stream.changesWith(ref.changes, Equivalence.strict()),
+            v => Effect.sync(() => setReactStateValue(v)),
+        )
+    ), [ref])
+
+    const setValue = yield* Component.useCallbackSync((setStateAction: React.SetStateAction<A>) =>
+        Effect.andThen(
+            Ref.updateAndGet(ref, prevState => SetStateAction.value(setStateAction, prevState)),
+            v => setReactStateValue(v),
+        ),
+    [ref])
+
+    return [reactStateValue, setValue]
+})
+
+export const useSubscriptionRefFromState: {
+    <A>(state: readonly [A, React.Dispatch<React.SetStateAction<A>>]): Effect.Effect<SubscriptionRef.SubscriptionRef<A>, never, Scope.Scope>
+} = Effect.fnUntraced(function*([value, setValue]) {
+    const ref = yield* Component.useOnChange(() => Effect.tap(
+        SubscriptionRef.make(value),
+        ref => Effect.forkScoped(
+            Stream.runForEach(
+                Stream.changesWith(ref.changes, Equivalence.strict()),
+                v => Effect.sync(() => setValue(v)),
+            )
+        ),
+    ), [setValue])
+
+    yield* Component.useReactEffect(() => Ref.set(ref, value), [value])
+    return ref
+})
+
+export * from "effect/SubscriptionRef"