/**
 * @since 2.0.0
 */
import type * as Chunk from "./Chunk.js"
import type * as HashSet from "./HashSet.js"
import * as internal from "./internal/stm/tSet.js"
import type * as Option from "./Option.js"
import type { Predicate } from "./Predicate.js"
import type * as STM from "./STM.js"
import type * as TMap from "./TMap.js"
import type * as Types from "./Types.js"

/**
 * @since 2.0.0
 * @category symbols
 */
export const TSetTypeId: unique symbol = internal.TSetTypeId

/**
 * @since 2.0.0
 * @category symbols
 */
export type TSetTypeId = typeof TSetTypeId

/**
 * Transactional set implemented on top of `TMap`.
 *
 * @since 2.0.0
 * @category models
 */
export interface TSet<in out A> extends TSet.Variance<A> {}
/**
 * @internal
 * @since 2.0.0
 */
export interface TSet<in out A> {
  /** @internal */
  readonly tMap: TMap.TMap<A, void>
}

/**
 * @since 2.0.0
 */
export declare namespace TSet {
  /**
   * @since 2.0.0
   * @category models
   */
  export interface Variance<in out A> {
    readonly [TSetTypeId]: {
      readonly _A: Types.Invariant<A>
    }
  }
}

/**
 * Stores new element in the set.
 *
 * @since 2.0.0
 * @category mutations
 */
export const add: {
  /**
   * Stores new element in the set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(value: A): (self: TSet<A>) => STM.STM<void>
  /**
   * Stores new element in the set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, value: A): STM.STM<void>
} = internal.add

/**
 * Atomically transforms the set into the difference of itself and the
 * provided set.
 *
 * @since 2.0.0
 * @category mutations
 */
export const difference: {
  /**
   * Atomically transforms the set into the difference of itself and the
   * provided set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(other: TSet<A>): (self: TSet<A>) => STM.STM<void>
  /**
   * Atomically transforms the set into the difference of itself and the
   * provided set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, other: TSet<A>): STM.STM<void>
} = internal.difference

/**
 * Makes an empty `TSet`.
 *
 * @since 2.0.0
 * @category constructors
 */
export const empty: <A>() => STM.STM<TSet<A>> = internal.empty

/**
 * Atomically performs transactional-effect for each element in set.
 *
 * @since 2.0.0
 * @category elements
 */
export const forEach: {
  /**
   * Atomically performs transactional-effect for each element in set.
   *
   * @since 2.0.0
   * @category elements
   */
  <A, R, E>(f: (value: A) => STM.STM<void, E, R>): (self: TSet<A>) => STM.STM<void, E, R>
  /**
   * Atomically performs transactional-effect for each element in set.
   *
   * @since 2.0.0
   * @category elements
   */
  <A, R, E>(self: TSet<A>, f: (value: A) => STM.STM<void, E, R>): STM.STM<void, E, R>
} = internal.forEach

/**
 * Creates a new `TSet` from an iterable collection of values.
 *
 * @since 2.0.0
 * @category constructors
 */
export const fromIterable: <A>(iterable: Iterable<A>) => STM.STM<TSet<A>> = internal.fromIterable

/**
 * Tests whether or not set contains an element.
 *
 * @since 2.0.0
 * @category elements
 */
export const has: {
  /**
   * Tests whether or not set contains an element.
   *
   * @since 2.0.0
   * @category elements
   */
  <A>(value: A): (self: TSet<A>) => STM.STM<boolean>
  /**
   * Tests whether or not set contains an element.
   *
   * @since 2.0.0
   * @category elements
   */
  <A>(self: TSet<A>, value: A): STM.STM<boolean>
} = internal.has

/**
 * Atomically transforms the set into the intersection of itself and the
 * provided set.
 *
 * @since 2.0.0
 * @category mutations
 */
export const intersection: {
  /**
   * Atomically transforms the set into the intersection of itself and the
   * provided set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(other: TSet<A>): (self: TSet<A>) => STM.STM<void>
  /**
   * Atomically transforms the set into the intersection of itself and the
   * provided set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, other: TSet<A>): STM.STM<void>
} = internal.intersection

/**
 * Tests if the set is empty or not
 *
 * @since 2.0.0
 * @category getters
 */
export const isEmpty: <A>(self: TSet<A>) => STM.STM<boolean> = internal.isEmpty

/**
 * Makes a new `TSet` that is initialized with specified values.
 *
 * @since 2.0.0
 * @category constructors
 */
export const make: <Elements extends Array<any>>(
  ...elements: Elements
) => STM.STM<TSet<Elements[number]>> = internal.make

/**
 * Atomically folds using a pure function.
 *
 * @since 2.0.0
 * @category folding
 */
export const reduce: {
  /**
   * Atomically folds using a pure function.
   *
   * @since 2.0.0
   * @category folding
   */
  <Z, A>(zero: Z, f: (accumulator: Z, value: A) => Z): (self: TSet<A>) => STM.STM<Z>
  /**
   * Atomically folds using a pure function.
   *
   * @since 2.0.0
   * @category folding
   */
  <Z, A>(self: TSet<A>, zero: Z, f: (accumulator: Z, value: A) => Z): STM.STM<Z>
} = internal.reduce

/**
 * Atomically folds using a transactional function.
 *
 * @since 2.0.0
 * @category folding
 */
export const reduceSTM: {
  /**
   * Atomically folds using a transactional function.
   *
   * @since 2.0.0
   * @category folding
   */
  <Z, A, R, E>(zero: Z, f: (accumulator: Z, value: A) => STM.STM<Z, E, R>): (self: TSet<A>) => STM.STM<Z, E, R>
  /**
   * Atomically folds using a transactional function.
   *
   * @since 2.0.0
   * @category folding
   */
  <Z, A, R, E>(self: TSet<A>, zero: Z, f: (accumulator: Z, value: A) => STM.STM<Z, E, R>): STM.STM<Z, E, R>
} = internal.reduceSTM

/**
 * Removes a single element from the set.
 *
 * @since 2.0.0
 * @category mutations
 */
export const remove: {
  /**
   * Removes a single element from the set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(value: A): (self: TSet<A>) => STM.STM<void>
  /**
   * Removes a single element from the set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, value: A): STM.STM<void>
} = internal.remove

/**
 * Removes elements from the set.
 *
 * @since 2.0.0
 * @category mutations
 */
export const removeAll: {
  /**
   * Removes elements from the set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(iterable: Iterable<A>): (self: TSet<A>) => STM.STM<void>
  /**
   * Removes elements from the set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, iterable: Iterable<A>): STM.STM<void>
} = internal.removeAll

/**
 * Removes entries from a `TSet` that satisfy the specified predicate and returns the removed entries
 * (or `void` if `discard = true`).
 *
 * @since 2.0.0
 * @category mutations
 */
export const removeIf: {
  /**
   * Removes entries from a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    predicate: Predicate<A>,
    options: {
      readonly discard: true
    }
  ): (self: TSet<A>) => STM.STM<void>
  /**
   * Removes entries from a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    predicate: Predicate<A>,
    options?: {
      readonly discard: false
    }
  ): (self: TSet<A>) => STM.STM<Array<A>>
  /**
   * Removes entries from a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    self: TSet<A>,
    predicate: Predicate<A>,
    options: {
      readonly discard: true
    }
  ): STM.STM<void>
  /**
   * Removes entries from a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    self: TSet<A>,
    predicate: Predicate<A>,
    options?: {
      readonly discard: false
    }
  ): STM.STM<Array<A>>
} = internal.removeIf

/**
 * Retains entries in a `TSet` that satisfy the specified predicate and returns the removed entries
 * (or `void` if `discard = true`).
 *
 * @since 2.0.0
 * @category mutations
 */
export const retainIf: {
  /**
   * Retains entries in a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    predicate: Predicate<A>,
    options: {
      readonly discard: true
    }
  ): (self: TSet<A>) => STM.STM<void>
  /**
   * Retains entries in a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    predicate: Predicate<A>,
    options?: {
      readonly discard: false
    }
  ): (self: TSet<A>) => STM.STM<Array<A>>
  /**
   * Retains entries in a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    self: TSet<A>,
    predicate: Predicate<A>,
    options: {
      readonly discard: true
    }
  ): STM.STM<void>
  /**
   * Retains entries in a `TSet` that satisfy the specified predicate and returns the removed entries
   * (or `void` if `discard = true`).
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(
    self: TSet<A>,
    predicate: Predicate<A>,
    options?: {
      readonly discard: false
    }
  ): STM.STM<Array<A>>
} = internal.retainIf

/**
 * Returns the set's cardinality.
 *
 * @since 2.0.0
 * @category getters
 */
export const size: <A>(self: TSet<A>) => STM.STM<number> = internal.size

/**
 * Takes the first matching value, or retries until there is one.
 *
 * @since 2.0.0
 * @category mutations
 */
export const takeFirst: {
  /**
   * Takes the first matching value, or retries until there is one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B>(pf: (a: A) => Option.Option<B>): (self: TSet<A>) => STM.STM<B>
  /**
   * Takes the first matching value, or retries until there is one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B>(self: TSet<A>, pf: (a: A) => Option.Option<B>): STM.STM<B>
} = internal.takeFirst

/**
 * Takes the first matching value, or retries until there is one.
 *
 * @since 2.0.0
 * @category mutations
 */
export const takeFirstSTM: {
  /**
   * Takes the first matching value, or retries until there is one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B, E, R>(pf: (a: A) => STM.STM<B, Option.Option<E>, R>): (self: TSet<A>) => STM.STM<B, E, R>
  /**
   * Takes the first matching value, or retries until there is one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B, E, R>(self: TSet<A>, pf: (a: A) => STM.STM<B, Option.Option<E>, R>): STM.STM<B, E, R>
} = internal.takeFirstSTM

/**
 * Takes all matching values, or retries until there is at least one.
 *
 * @since 2.0.0
 * @category mutations
 */
export const takeSome: {
  /**
   * Takes all matching values, or retries until there is at least one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B>(pf: (a: A) => Option.Option<B>): (self: TSet<A>) => STM.STM<[B, ...Array<B>]>
  /**
   * Takes all matching values, or retries until there is at least one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B>(self: TSet<A>, pf: (a: A) => Option.Option<B>): STM.STM<[B, ...Array<B>]>
} = internal.takeSome

/**
 * Takes all matching values, or retries until there is at least one.
 *
 * @since 2.0.0
 * @category mutations
 */
export const takeSomeSTM: {
  /**
   * Takes all matching values, or retries until there is at least one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B, E, R>(pf: (a: A) => STM.STM<B, Option.Option<E>, R>): (self: TSet<A>) => STM.STM<[B, ...Array<B>], E, R>
  /**
   * Takes all matching values, or retries until there is at least one.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, B, E, R>(self: TSet<A>, pf: (a: A) => STM.STM<B, Option.Option<E>, R>): STM.STM<[B, ...Array<B>], E, R>
} = internal.takeSomeSTM

/**
 * Collects all elements into a `Chunk`.
 *
 * @since 2.0.0
 * @category destructors
 */
export const toChunk: <A>(self: TSet<A>) => STM.STM<Chunk.Chunk<A>> = internal.toChunk

/**
 * Collects all elements into a `HashSet`.
 *
 * @since 2.0.0
 * @category destructors
 */
export const toHashSet: <A>(self: TSet<A>) => STM.STM<HashSet.HashSet<A>> = internal.toHashSet

/**
 * Collects all elements into a `Array`.
 *
 * @since 2.0.0
 * @category destructors
 */
export const toArray: <A>(self: TSet<A>) => STM.STM<Array<A>> = internal.toArray

/**
 * Collects all elements into a `ReadonlySet`.
 *
 * @since 2.0.0
 * @category destructors
 */
export const toReadonlySet: <A>(self: TSet<A>) => STM.STM<ReadonlySet<A>> = internal.toReadonlySet

/**
 * Atomically updates all elements using a pure function.
 *
 * @since 2.0.0
 * @category mutations
 */
export const transform: {
  /**
   * Atomically updates all elements using a pure function.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(f: (a: A) => A): (self: TSet<A>) => STM.STM<void>
  /**
   * Atomically updates all elements using a pure function.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, f: (a: A) => A): STM.STM<void>
} = internal.transform

/**
 * Atomically updates all elements using a transactional function.
 *
 * @since 2.0.0
 * @category mutations
 */
export const transformSTM: {
  /**
   * Atomically updates all elements using a transactional function.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, R, E>(f: (a: A) => STM.STM<A, E, R>): (self: TSet<A>) => STM.STM<void, E, R>
  /**
   * Atomically updates all elements using a transactional function.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A, R, E>(self: TSet<A>, f: (a: A) => STM.STM<A, E, R>): STM.STM<void, E, R>
} = internal.transformSTM

/**
 * Atomically transforms the set into the union of itself and the provided
 * set.
 *
 * @since 2.0.0
 * @category mutations
 */
export const union: {
  /**
   * Atomically transforms the set into the union of itself and the provided
   * set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(other: TSet<A>): (self: TSet<A>) => STM.STM<void>
  /**
   * Atomically transforms the set into the union of itself and the provided
   * set.
   *
   * @since 2.0.0
   * @category mutations
   */
  <A>(self: TSet<A>, other: TSet<A>): STM.STM<void>
} = internal.union