declare const get: {
  <K>(key: K): <A, E>(self: RcMap<K, A, E>) => Effect.Effect<A, E, Scope.Scope>
  <K, A, E>(self: RcMap<K, A, E>, key: K): Effect.Effect<A, E, Scope.Scope>
}

declare const invalidate: {
  <K>(key: K): <A, E>(self: RcMap<K, A, E>) => Effect.Effect<void>
  <K, A, E>(self: RcMap<K, A, E>, key: K): Effect.Effect<void>
}

declare const keys: <K, A, E>(self: RcMap<K, A, E>) => Effect.Effect<Array<K>, E>

declare const touch: {
  <K>(key: K): <A, E>(self: RcMap<K, A, E>) => Effect.Effect<void>
  <K, A, E>(self: RcMap<K, A, E>, key: K): Effect.Effect<void>
}

export interface RcMap<in K, out A, out E = never> extends Pipeable {
  readonly [TypeId]: RcMap.Variance<K, A, E>
}

export interface Variance<K, A, E> {
  readonly _K: Types.Contravariant<K>
  readonly _A: Types.Covariant<A>
  readonly _E: Types.Covariant<E>
}

import { Effect, RcMap } from "effect"

Effect.gen(function* () {
  const map = yield* RcMap.make({
    lookup: (key: string) =>
      Effect.acquireRelease(Effect.succeed(`acquired ${key}`), () => Effect.log(`releasing ${key}`))
  })

  // Get "foo" from the map twice, which will only acquire it once.
  // It will then be released once the scope closes.
  yield* RcMap.get(map, "foo").pipe(Effect.andThen(RcMap.get(map, "foo")), Effect.scoped)
})

declare const make: {
  <K, A, E, R>(options: {
    readonly lookup: (key: K) => Effect.Effect<A, E, R>
    readonly idleTimeToLive?: Duration.DurationInput | undefined
    readonly capacity?: undefined
  }): Effect.Effect<RcMap<K, A, E>, never, Scope.Scope | R>
  <K, A, E, R>(options: {
    readonly lookup: (key: K) => Effect.Effect<A, E, R>
    readonly idleTimeToLive?: Duration.DurationInput | undefined
    readonly capacity: number
  }): Effect.Effect<RcMap<K, A, E | Cause.ExceededCapacityException>, never, Scope.Scope | R>
}

declare const TypeId: unique symbol

type TypeId = typeof TypeId