Refactoring

packages/effect-fc/src/Component.ts

@@ -1,6 +1,6 @@
 import { Context, Effect, Effectable, ExecutionStrategy, Function, Predicate, Runtime, Scope, String, Tracer, type Utils } from "effect"
 import * as React from "react"
-import * as Hook from "./Hook.js"
+import * as Hook from "./Hook/index.js"
 import * as Memoized from "./Memoized.js"
 
 

packages/effect-fc/src/Hook.ts

@@ -1,302 +0,0 @@
-import { type Context, Effect, Equivalence, ExecutionStrategy, Exit, type Layer, Option, pipe, PubSub, Ref, Runtime, Scope, Stream, SubscriptionRef } from "effect"
-import * as React from "react"
-import { SetStateAction } from "./types/index.js"
-
-
-export interface ScopeOptions {
-    readonly finalizerExecutionMode?: "sync" | "fork"
-    readonly finalizerExecutionStrategy?: ExecutionStrategy.ExecutionStrategy
-}
-
-
-export const useScope: {
-    (
-        deps: React.DependencyList,
-        options?: ScopeOptions,
-    ): Effect.Effect<Scope.Scope>
-} = Effect.fn("useScope")(function*(deps, options) {
-    const runtime = yield* Effect.runtime()
-
-    const [isInitialRun, initialScope] = React.useMemo(() => Runtime.runSync(runtime)(Effect.all([
-        Ref.make(true),
-        Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential),
-    ])), [])
-    const [scope, setScope] = React.useState(initialScope)
-
-    React.useEffect(() => Runtime.runSync(runtime)(
-        Effect.if(isInitialRun, {
-            onTrue: () => Effect.as(
-                Ref.set(isInitialRun, false),
-                () => closeScope(scope, runtime, options),
-            ),
-
-            onFalse: () => Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential).pipe(
-                Effect.tap(scope => Effect.sync(() => setScope(scope))),
-                Effect.map(scope => () => closeScope(scope, runtime, options)),
-            ),
-        })
-    ), deps)
-
-    return scope
-})
-
-const closeScope = (
-    scope: Scope.CloseableScope,
-    runtime: Runtime.Runtime<never>,
-    options?: ScopeOptions,
-) => {
-    switch (options?.finalizerExecutionMode ?? "sync") {
-        case "sync":
-            Runtime.runSync(runtime)(Scope.close(scope, Exit.void))
-            break
-        case "fork":
-            Runtime.runFork(runtime)(Scope.close(scope, Exit.void))
-            break
-    }
-}
-
-
-export const useCallbackSync: {
-    <Args extends unknown[], A, E, R>(
-        callback: (...args: Args) => Effect.Effect<A, E, R>,
-        deps: React.DependencyList,
-    ): Effect.Effect<(...args: Args) => A, never, R>
-} = Effect.fn("useCallbackSync")(function* <Args extends unknown[], A, E, R>(
-    callback: (...args: Args) => Effect.Effect<A, E, R>,
-    deps: React.DependencyList,
-) {
-    const runtime = yield* Effect.runtime<R>()
-    return React.useCallback((...args: Args) => Runtime.runSync(runtime)(callback(...args)), deps)
-})
-
-export const useCallbackPromise: {
-    <Args extends unknown[], A, E, R>(
-        callback: (...args: Args) => Effect.Effect<A, E, R>,
-        deps: React.DependencyList,
-    ): Effect.Effect<(...args: Args) => Promise<A>, never, R>
-} = Effect.fn("useCallbackPromise")(function* <Args extends unknown[], A, E, R>(
-    callback: (...args: Args) => Effect.Effect<A, E, R>,
-    deps: React.DependencyList,
-) {
-    const runtime = yield* Effect.runtime<R>()
-    return React.useCallback((...args: Args) => Runtime.runPromise(runtime)(callback(...args)), deps)
-})
-
-
-export const useMemo: {
-    <A, E, R>(
-        factory: () => Effect.Effect<A, E, R>,
-        deps: React.DependencyList,
-    ): Effect.Effect<A, E, R>
-} = Effect.fn("useMemo")(function* <A, E, R>(
-    factory: () => Effect.Effect<A, E, R>,
-    deps: React.DependencyList,
-) {
-    const runtime = yield* Effect.runtime()
-    return yield* React.useMemo(() => Runtime.runSync(runtime)(Effect.cached(factory())), deps)
-})
-
-export const useOnce: {
-    <A, E, R>(factory: () => Effect.Effect<A, E, R>): Effect.Effect<A, E, R>
-} = Effect.fn("useOnce")(function* <A, E, R>(
-    factory: () => Effect.Effect<A, E, R>
-) {
-    return yield* useMemo(factory, [])
-})
-
-
-export const useEffect: {
-    <E, R>(
-        effect: () => Effect.Effect<void, E, R>,
-        deps?: React.DependencyList,
-        options?: ScopeOptions,
-    ): Effect.Effect<void, never, Exclude<R, Scope.Scope>>
-} = Effect.fn("useEffect")(function* <E, R>(
-    effect: () => Effect.Effect<void, E, R>,
-    deps?: React.DependencyList,
-    options?: ScopeOptions,
-) {
-    const runtime = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
-
-    React.useEffect(() => Effect.Do.pipe(
-        Effect.bind("scope", () => Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)),
-        Effect.bind("exit", ({ scope }) => Effect.exit(Effect.provideService(effect(), Scope.Scope, scope))),
-        Effect.map(({ scope }) =>
-            () => closeScope(scope, runtime, options)
-        ),
-        Runtime.runSync(runtime),
-    ), deps)
-})
-
-export const useLayoutEffect: {
-    <E, R>(
-        effect: () => Effect.Effect<void, E, R>,
-        deps?: React.DependencyList,
-        options?: ScopeOptions,
-    ): Effect.Effect<void, never, Exclude<R, Scope.Scope>>
-} = Effect.fn("useLayoutEffect")(function* <E, R>(
-    effect: () => Effect.Effect<void, E, R>,
-    deps?: React.DependencyList,
-    options?: ScopeOptions,
-) {
-    const runtime = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
-
-    React.useLayoutEffect(() => Effect.Do.pipe(
-        Effect.bind("scope", () => Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)),
-        Effect.bind("exit", ({ scope }) => Effect.exit(Effect.provideService(effect(), Scope.Scope, scope))),
-        Effect.map(({ scope }) =>
-            () => closeScope(scope, runtime, options)
-        ),
-        Runtime.runSync(runtime),
-    ), deps)
-})
-
-export const useFork: {
-    <E, R>(
-        effect: () => Effect.Effect<void, E, R>,
-        deps?: React.DependencyList,
-        options?: Runtime.RunForkOptions & ScopeOptions,
-    ): Effect.Effect<void, never, Exclude<R, Scope.Scope>>
-} = Effect.fn("useFork")(function* <E, R>(
-    effect: () => Effect.Effect<void, E, R>,
-    deps?: React.DependencyList,
-    options?: Runtime.RunForkOptions & ScopeOptions,
-) {
-    const runtime = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
-
-    React.useEffect(() => {
-        const scope = Runtime.runSync(runtime)(options?.scope
-            ? Scope.fork(options.scope, options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)
-            : Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)
-        )
-        Runtime.runFork(runtime)(Effect.provideService(effect(), Scope.Scope, scope), { ...options, scope })
-        return () => closeScope(scope, runtime, {
-            ...options,
-            finalizerExecutionMode: options?.finalizerExecutionMode ?? "fork",
-        })
-    }, deps)
-})
-
-
-export const useContext: {
-    <ROut, E, RIn>(
-        layer: Layer.Layer<ROut, E, RIn>,
-        options?: ScopeOptions,
-    ): Effect.Effect<Context.Context<ROut>, E, Exclude<RIn, Scope.Scope>>
-} = Effect.fn("useContext")(function* <ROut, E, RIn>(
-    layer: Layer.Layer<ROut, E, RIn>,
-    options?: ScopeOptions,
-) {
-    const scope = yield* useScope([layer], options)
-
-    return yield* useMemo(() => Effect.provideService(
-        Effect.provide(Effect.context<ROut>(), layer),
-        Scope.Scope,
-        scope,
-    ), [scope])
-})
-
-
-export const useRefFromReactiveValue: {
-    <A>(value: A): Effect.Effect<SubscriptionRef.SubscriptionRef<A>>
-} = Effect.fn("useRefFromReactiveValue")(function*(value) {
-    const ref = yield* useOnce(() => SubscriptionRef.make(value))
-    yield* useEffect(() => Ref.set(ref, value), [value])
-    return ref
-})
-
-export const useSubscribeRefs: {
-    <const Refs extends readonly SubscriptionRef.SubscriptionRef<any>[]>(
-        ...refs: Refs
-    ): Effect.Effect<{ [K in keyof Refs]: Effect.Effect.Success<Refs[K]> }>
-} = Effect.fn("useSubscribeRefs")(function* <const Refs extends readonly SubscriptionRef.SubscriptionRef<any>[]>(
-    ...refs: Refs
-) {
-    const [reactStateValue, setReactStateValue] = React.useState(yield* useOnce(() =>
-        Effect.all(refs as readonly SubscriptionRef.SubscriptionRef<any>[])
-    ))
-
-    yield* useFork(() => pipe(
-        refs.map(ref => Stream.changesWith(ref.changes, Equivalence.strict())),
-        streams => Stream.zipLatestAll(...streams),
-        Stream.runForEach(v =>
-            Effect.sync(() => setReactStateValue(v))
-        ),
-    ), refs)
-
-    return reactStateValue as any
-})
-
-export const useRefState: {
-    <A>(
-        ref: SubscriptionRef.SubscriptionRef<A>
-    ): Effect.Effect<readonly [A, React.Dispatch<React.SetStateAction<A>>]>
-} = Effect.fn("useRefState")(function* <A>(ref: SubscriptionRef.SubscriptionRef<A>) {
-    const [reactStateValue, setReactStateValue] = React.useState(yield* useOnce(() => ref))
-
-    yield* useFork(() => Stream.runForEach(
-        Stream.changesWith(ref.changes, Equivalence.strict()),
-        v => Effect.sync(() => setReactStateValue(v)),
-    ), [ref])
-
-    const setValue = yield* useCallbackSync((setStateAction: React.SetStateAction<A>) =>
-        Ref.update(ref, prevState =>
-            SetStateAction.value(setStateAction, prevState)
-        ),
-    [ref])
-
-    return [reactStateValue, setValue]
-})
-
-
-export const useStreamFromReactiveValues: {
-    <const A extends React.DependencyList>(
-        values: A
-    ): Effect.Effect<Stream.Stream<A>, never, Scope.Scope>
-} = Effect.fn("useStreamFromReactiveValues")(function* <const A extends React.DependencyList>(values: A) {
-    const { latest, pubsub, stream } = yield* useOnce(() => Effect.Do.pipe(
-        Effect.bind("latest", () => Ref.make(values)),
-        Effect.bind("pubsub", () => Effect.acquireRelease(PubSub.unbounded<A>(), PubSub.shutdown)),
-        Effect.let("stream", ({ latest, pubsub }) => latest.pipe(
-            Effect.flatMap(a => Effect.map(
-                Stream.fromPubSub(pubsub, { scoped: true }),
-                s => Stream.concat(Stream.make(a), s),
-            )),
-            Stream.unwrapScoped,
-        )),
-    ))
-
-    yield* useEffect(() => Ref.set(latest, values).pipe(
-        Effect.andThen(PubSub.publish(pubsub, values)),
-        Effect.unlessEffect(PubSub.isShutdown(pubsub)),
-    ), values)
-
-    return stream
-})
-
-export const useSubscribeStream: {
-    <A, E, R>(
-        stream: Stream.Stream<A, E, R>
-    ): Effect.Effect<Option.Option<A>, never, R>
-    <A extends NonNullable<unknown>, E, R>(
-        stream: Stream.Stream<A, E, R>,
-        initialValue: A,
-    ): Effect.Effect<Option.Some<A>, never, R>
-} = Effect.fn("useSubscribeStream")(function* <A extends NonNullable<unknown>, E, R>(
-    stream: Stream.Stream<A, E, R>,
-    initialValue?: A,
-) {
-    const [reactStateValue, setReactStateValue] = React.useState(
-        React.useMemo(() => initialValue
-            ? Option.some(initialValue)
-            : Option.none(),
-        [])
-    )
-
-    yield* useFork(() => Stream.runForEach(
-        Stream.changesWith(stream, Equivalence.strict()),
-        v => Effect.sync(() => setReactStateValue(Option.some(v))),
-    ), [stream])
-
-    return reactStateValue as Option.Some<A>
-})

packages/effect-fc/src/Hook/ScopeOptions.ts

@@ -0,0 +1,7 @@
+import type { ExecutionStrategy } from "effect"
+
+
+export interface ScopeOptions {
+    readonly finalizerExecutionMode?: "sync" | "fork"
+    readonly finalizerExecutionStrategy?: ExecutionStrategy.ExecutionStrategy
+}

packages/effect-fc/src/Hook/index.ts

@@ -0,0 +1,14 @@
+export * from "./ScopeOptions.js"
+export * from "./useCallbackPromise.js"
+export * from "./useCallbackSync.js"
+export * from "./useContext.js"
+export * from "./useEffect.js"
+export * from "./useLayoutEffect.js"
+export * from "./useMemo.js"
+export * from "./useOnce.js"
+export * from "./useRefFromReactiveValue.js"
+export * from "./useRefState.js"
+export * from "./useScope.js"
+export * from "./useStreamFromReactiveValues.js"
+export * from "./useSubscribeRefs.js"
+export * from "./useSubscribeStream.js"

packages/effect-fc/src/Hook/internal.ts

@@ -0,0 +1,18 @@
+import { Exit, Runtime, Scope } from "effect"
+import type { ScopeOptions } from "./ScopeOptions.js"
+
+
+export const closeScope = (
+    scope: Scope.CloseableScope,
+    runtime: Runtime.Runtime<never>,
+    options?: ScopeOptions,
+) => {
+    switch (options?.finalizerExecutionMode ?? "sync") {
+        case "sync":
+            Runtime.runSync(runtime)(Scope.close(scope, Exit.void))
+            break
+        case "fork":
+            Runtime.runFork(runtime)(Scope.close(scope, Exit.void))
+            break
+    }
+}

packages/effect-fc/src/Hook/useCallbackPromise.ts

@@ -0,0 +1,16 @@
+import { Effect, Runtime } from "effect"
+import * as React from "react"
+
+
+export const useCallbackPromise: {
+    <Args extends unknown[], A, E, R>(
+        callback: (...args: Args) => Effect.Effect<A, E, R>,
+        deps: React.DependencyList,
+    ): Effect.Effect<(...args: Args) => Promise<A>, never, R>
+} = Effect.fn("useCallbackPromise")(function* <Args extends unknown[], A, E, R>(
+    callback: (...args: Args) => Effect.Effect<A, E, R>,
+    deps: React.DependencyList,
+) {
+    const runtime = yield* Effect.runtime<R>()
+    return React.useCallback((...args: Args) => Runtime.runPromise(runtime)(callback(...args)), deps)
+})

packages/effect-fc/src/Hook/useCallbackSync.ts

@@ -0,0 +1,16 @@
+import { Effect, Runtime } from "effect"
+import * as React from "react"
+
+
+export const useCallbackSync: {
+    <Args extends unknown[], A, E, R>(
+        callback: (...args: Args) => Effect.Effect<A, E, R>,
+        deps: React.DependencyList,
+    ): Effect.Effect<(...args: Args) => A, never, R>
+} = Effect.fn("useCallbackSync")(function* <Args extends unknown[], A, E, R>(
+    callback: (...args: Args) => Effect.Effect<A, E, R>,
+    deps: React.DependencyList,
+) {
+    const runtime = yield* Effect.runtime<R>()
+    return React.useCallback((...args: Args) => Runtime.runSync(runtime)(callback(...args)), deps)
+})

packages/effect-fc/src/Hook/useContext.ts

@@ -0,0 +1,23 @@
+import { type Context, Effect, type Layer, Scope } from "effect"
+import type { ScopeOptions } from "./ScopeOptions.js"
+import { useMemo } from "./useMemo.js"
+import { useScope } from "./useScope.js"
+
+
+export const useContext: {
+    <ROut, E, RIn>(
+        layer: Layer.Layer<ROut, E, RIn>,
+        options?: ScopeOptions,
+    ): Effect.Effect<Context.Context<ROut>, E, Exclude<RIn, Scope.Scope>>
+} = Effect.fn("useContext")(function* <ROut, E, RIn>(
+    layer: Layer.Layer<ROut, E, RIn>,
+    options?: ScopeOptions,
+) {
+    const scope = yield* useScope([layer], options)
+
+    return yield* useMemo(() => Effect.provideService(
+        Effect.provide(Effect.context<ROut>(), layer),
+        Scope.Scope,
+        scope,
+    ), [scope])
+})

packages/effect-fc/src/Hook/useEffect.ts

@@ -0,0 +1,28 @@
+import { Effect, ExecutionStrategy, Runtime, Scope } from "effect"
+import * as React from "react"
+import type { ScopeOptions } from "./ScopeOptions.js"
+import { closeScope } from "./internal.js"
+
+
+export const useEffect: {
+    <E, R>(
+        effect: () => Effect.Effect<void, E, R>,
+        deps?: React.DependencyList,
+        options?: ScopeOptions,
+    ): Effect.Effect<void, never, Exclude<R, Scope.Scope>>
+} = Effect.fn("useEffect")(function* <E, R>(
+    effect: () => Effect.Effect<void, E, R>,
+    deps?: React.DependencyList,
+    options?: ScopeOptions,
+) {
+    const runtime = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
+
+    React.useEffect(() => Effect.Do.pipe(
+        Effect.bind("scope", () => Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)),
+        Effect.bind("exit", ({ scope }) => Effect.exit(Effect.provideService(effect(), Scope.Scope, scope))),
+        Effect.map(({ scope }) =>
+            () => closeScope(scope, runtime, options)
+        ),
+        Runtime.runSync(runtime),
+    ), deps)
+})

packages/effect-fc/src/Hook/useFork.ts

@@ -0,0 +1,31 @@
+import { Effect, ExecutionStrategy, Runtime, Scope } from "effect"
+import * as React from "react"
+import { closeScope } from "./internal.js"
+import type { ScopeOptions } from "./ScopeOptions.js"
+
+
+export const useFork: {
+    <E, R>(
+        effect: () => Effect.Effect<void, E, R>,
+        deps?: React.DependencyList,
+        options?: Runtime.RunForkOptions & ScopeOptions,
+    ): Effect.Effect<void, never, Exclude<R, Scope.Scope>>
+} = Effect.fn("useFork")(function* <E, R>(
+    effect: () => Effect.Effect<void, E, R>,
+    deps?: React.DependencyList,
+    options?: Runtime.RunForkOptions & ScopeOptions,
+) {
+    const runtime = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
+
+    React.useEffect(() => {
+        const scope = Runtime.runSync(runtime)(options?.scope
+            ? Scope.fork(options.scope, options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)
+            : Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)
+        )
+        Runtime.runFork(runtime)(Effect.provideService(effect(), Scope.Scope, scope), { ...options, scope })
+        return () => closeScope(scope, runtime, {
+            ...options,
+            finalizerExecutionMode: options?.finalizerExecutionMode ?? "fork",
+        })
+    }, deps)
+})

packages/effect-fc/src/Hook/useLayoutEffect.ts

@@ -0,0 +1,28 @@
+import { Effect, ExecutionStrategy, Runtime, Scope } from "effect"
+import * as React from "react"
+import type { ScopeOptions } from "./ScopeOptions.js"
+import { closeScope } from "./internal.js"
+
+
+export const useLayoutEffect: {
+    <E, R>(
+        effect: () => Effect.Effect<void, E, R>,
+        deps?: React.DependencyList,
+        options?: ScopeOptions,
+    ): Effect.Effect<void, never, Exclude<R, Scope.Scope>>
+} = Effect.fn("useLayoutEffect")(function* <E, R>(
+    effect: () => Effect.Effect<void, E, R>,
+    deps?: React.DependencyList,
+    options?: ScopeOptions,
+) {
+    const runtime = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
+
+    React.useLayoutEffect(() => Effect.Do.pipe(
+        Effect.bind("scope", () => Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential)),
+        Effect.bind("exit", ({ scope }) => Effect.exit(Effect.provideService(effect(), Scope.Scope, scope))),
+        Effect.map(({ scope }) =>
+            () => closeScope(scope, runtime, options)
+        ),
+        Runtime.runSync(runtime),
+    ), deps)
+})

packages/effect-fc/src/Hook/useMemo.ts

@@ -0,0 +1,16 @@
+import { Effect, Runtime } from "effect"
+import * as React from "react"
+
+
+export const useMemo: {
+    <A, E, R>(
+        factory: () => Effect.Effect<A, E, R>,
+        deps: React.DependencyList,
+    ): Effect.Effect<A, E, R>
+} = Effect.fn("useMemo")(function* <A, E, R>(
+    factory: () => Effect.Effect<A, E, R>,
+    deps: React.DependencyList,
+) {
+    const runtime = yield* Effect.runtime()
+    return yield* React.useMemo(() => Runtime.runSync(runtime)(Effect.cached(factory())), deps)
+})

packages/effect-fc/src/Hook/useOnce.ts

@@ -0,0 +1,11 @@
+import { Effect } from "effect"
+import { useMemo } from "./useMemo.js"
+
+
+export const useOnce: {
+    <A, E, R>(factory: () => Effect.Effect<A, E, R>): Effect.Effect<A, E, R>
+} = Effect.fn("useOnce")(function* <A, E, R>(
+    factory: () => Effect.Effect<A, E, R>
+) {
+    return yield* useMemo(factory, [])
+})

packages/effect-fc/src/Hook/useRefFromReactiveValue.ts

@@ -0,0 +1,12 @@
+import { Effect, Ref, SubscriptionRef } from "effect"
+import { useEffect } from "./useEffect.js"
+import { useOnce } from "./useOnce.js"
+
+
+export const useRefFromReactiveValue: {
+    <A>(value: A): Effect.Effect<SubscriptionRef.SubscriptionRef<A>>
+} = Effect.fn("useRefFromReactiveValue")(function*(value) {
+    const ref = yield* useOnce(() => SubscriptionRef.make(value))
+    yield* useEffect(() => Ref.set(ref, value), [value])
+    return ref
+})

packages/effect-fc/src/Hook/useRefState.ts

@@ -0,0 +1,28 @@
+import { Effect, Equivalence, Ref, Stream, SubscriptionRef } from "effect"
+import * as React from "react"
+import { SetStateAction } from "../types/index.js"
+import { useCallbackSync } from "./useCallbackSync.js"
+import { useFork } from "./useFork.js"
+import { useOnce } from "./useOnce.js"
+
+
+export const useRefState: {
+    <A>(
+        ref: SubscriptionRef.SubscriptionRef<A>
+    ): Effect.Effect<readonly [A, React.Dispatch<React.SetStateAction<A>>]>
+} = Effect.fn("useRefState")(function* <A>(ref: SubscriptionRef.SubscriptionRef<A>) {
+    const [reactStateValue, setReactStateValue] = React.useState(yield* useOnce(() => ref))
+
+    yield* useFork(() => Stream.runForEach(
+        Stream.changesWith(ref.changes, Equivalence.strict()),
+        v => Effect.sync(() => setReactStateValue(v)),
+    ), [ref])
+
+    const setValue = yield* useCallbackSync((setStateAction: React.SetStateAction<A>) =>
+        Ref.update(ref, prevState =>
+            SetStateAction.value(setStateAction, prevState)
+        ),
+    [ref])
+
+    return [reactStateValue, setValue]
+})

packages/effect-fc/src/Hook/useScope.ts

@@ -0,0 +1,36 @@
+import { Effect, ExecutionStrategy, Ref, Runtime, Scope } from "effect"
+import * as React from "react"
+import type { ScopeOptions } from "./ScopeOptions.js"
+import { closeScope } from "./internal.js"
+
+
+export const useScope: {
+    (
+        deps: React.DependencyList,
+        options?: ScopeOptions,
+    ): Effect.Effect<Scope.Scope>
+} = Effect.fn("useScope")(function*(deps, options) {
+    const runtime = yield* Effect.runtime()
+
+    const [isInitialRun, initialScope] = React.useMemo(() => Runtime.runSync(runtime)(Effect.all([
+        Ref.make(true),
+        Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential),
+    ])), [])
+    const [scope, setScope] = React.useState(initialScope)
+
+    React.useEffect(() => Runtime.runSync(runtime)(
+        Effect.if(isInitialRun, {
+            onTrue: () => Effect.as(
+                Ref.set(isInitialRun, false),
+                () => closeScope(scope, runtime, options),
+            ),
+
+            onFalse: () => Scope.make(options?.finalizerExecutionStrategy ?? ExecutionStrategy.sequential).pipe(
+                Effect.tap(scope => Effect.sync(() => setScope(scope))),
+                Effect.map(scope => () => closeScope(scope, runtime, options)),
+            ),
+        })
+    ), deps)
+
+    return scope
+})

packages/effect-fc/src/Hook/useStreamFromReactiveValues.ts

@@ -0,0 +1,30 @@
+import { Effect, PubSub, Ref, Scope, Stream } from "effect"
+import * as React from "react"
+import { useEffect } from "./useEffect.js"
+import { useOnce } from "./useOnce.js"
+
+
+export const useStreamFromReactiveValues: {
+    <const A extends React.DependencyList>(
+        values: A
+    ): Effect.Effect<Stream.Stream<A>, never, Scope.Scope>
+} = Effect.fn("useStreamFromReactiveValues")(function* <const A extends React.DependencyList>(values: A) {
+    const { latest, pubsub, stream } = yield* useOnce(() => Effect.Do.pipe(
+        Effect.bind("latest", () => Ref.make(values)),
+        Effect.bind("pubsub", () => Effect.acquireRelease(PubSub.unbounded<A>(), PubSub.shutdown)),
+        Effect.let("stream", ({ latest, pubsub }) => latest.pipe(
+            Effect.flatMap(a => Effect.map(
+                Stream.fromPubSub(pubsub, { scoped: true }),
+                s => Stream.concat(Stream.make(a), s),
+            )),
+            Stream.unwrapScoped,
+        )),
+    ))
+
+    yield* useEffect(() => Ref.set(latest, values).pipe(
+        Effect.andThen(PubSub.publish(pubsub, values)),
+        Effect.unlessEffect(PubSub.isShutdown(pubsub)),
+    ), values)
+
+    return stream
+})

packages/effect-fc/src/Hook/useSubscribeRefs.ts

@@ -0,0 +1,27 @@
+import { Effect, Equivalence, pipe, Stream, SubscriptionRef } from "effect"
+import * as React from "react"
+import { useFork } from "./useFork.js"
+import { useOnce } from "./useOnce.js"
+
+
+export const useSubscribeRefs: {
+    <const Refs extends readonly SubscriptionRef.SubscriptionRef<any>[]>(
+        ...refs: Refs
+    ): Effect.Effect<{ [K in keyof Refs]: Effect.Effect.Success<Refs[K]> }>
+} = Effect.fn("useSubscribeRefs")(function* <const Refs extends readonly SubscriptionRef.SubscriptionRef<any>[]>(
+    ...refs: Refs
+) {
+    const [reactStateValue, setReactStateValue] = React.useState(yield* useOnce(() =>
+        Effect.all(refs as readonly SubscriptionRef.SubscriptionRef<any>[])
+    ))
+
+    yield* useFork(() => pipe(
+        refs.map(ref => Stream.changesWith(ref.changes, Equivalence.strict())),
+        streams => Stream.zipLatestAll(...streams),
+        Stream.runForEach(v =>
+            Effect.sync(() => setReactStateValue(v))
+        ),
+    ), refs)
+
+    return reactStateValue as any
+})

packages/effect-fc/src/Hook/useSubscribeStream.ts

@@ -0,0 +1,31 @@
+import { Effect, Equivalence, Option, Stream } from "effect"
+import * as React from "react"
+import { useFork } from "./useFork.js"
+
+
+export const useSubscribeStream: {
+    <A, E, R>(
+        stream: Stream.Stream<A, E, R>
+    ): Effect.Effect<Option.Option<A>, never, R>
+    <A extends NonNullable<unknown>, E, R>(
+        stream: Stream.Stream<A, E, R>,
+        initialValue: A,
+    ): Effect.Effect<Option.Some<A>, never, R>
+} = Effect.fn("useSubscribeStream")(function* <A extends NonNullable<unknown>, E, R>(
+    stream: Stream.Stream<A, E, R>,
+    initialValue?: A,
+) {
+    const [reactStateValue, setReactStateValue] = React.useState(
+        React.useMemo(() => initialValue
+            ? Option.some(initialValue)
+            : Option.none(),
+        [])
+    )
+
+    yield* useFork(() => Stream.runForEach(
+        Stream.changesWith(stream, Equivalence.strict()),
+        v => Effect.sync(() => setReactStateValue(Option.some(v))),
+    ), [stream])
+
+    return reactStateValue as Option.Some<A>
+})

packages/effect-fc/src/index.ts

@@ -1,5 +1,5 @@
 export * as Component from "./Component.js"
-export * as Hook from "./Hook.js"
+export * as Hook from "./Hook/index.js"
 export * as Memoized from "./Memoized.js"
 export * as ReactManagedRuntime from "./ReactManagedRuntime.js"
 export * as Suspense from "./Suspense.js"