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])
})