/**
 * @since 1.0.0
 */
import type * as Chunk from "@effect/data/Chunk";
import type * as Either from "@effect/data/Either";
import type { LazyArg } from "@effect/data/Function";
import type * as HashMap from "@effect/data/HashMap";
import type * as HashSet from "@effect/data/HashSet";
import type * as Option from "@effect/data/Option";
import type { Pipeable } from "@effect/data/Pipeable";
import type { Predicate, Refinement } from "@effect/data/Predicate";
import type * as ConfigError from "@effect/io/Config/Error";
import type * as ConfigSecret from "@effect/io/Config/Secret";
import type * as LogLevel from "@effect/io/Logger/Level";
/**
 * @since 1.0.0
 * @category symbols
 */
export declare const ConfigTypeId: unique symbol;
/**
 * @since 1.0.0
 * @category symbols
 */
export type ConfigTypeId = typeof ConfigTypeId;
/**
 * A `Config` describes the structure of some configuration data.
 *
 * @since 1.0.0
 * @category models
 */
export interface Config<A> extends Config.Variance<A>, Pipeable {
}
/**
 * @since 1.0.0
 */
export declare namespace Config {
    /**
     * @since 1.0.0
     * @category models
     */
    interface Variance<A> {
        readonly [ConfigTypeId]: {
            readonly _A: (_: never) => A;
        };
    }
    /**
     * @since 1.0.0
     * @category models
     */
    interface Primitive<A> extends Config<A> {
        readonly description: string;
        parse(text: string): Either.Either<ConfigError.ConfigError, A>;
    }
    /**
     * Wraps a nested structure, converting all primitives to a `Config`.
     *
     * `Config.Wrap<{ key: string }>` becomes `{ key: Config<string> }`
     *
     * To create the resulting config, use the `unwrap` constructor.
     *
     * @since 1.0.0
     * @category models
     */
    type Wrap<A> = (A extends Record<string, any> ? {
        [K in keyof A]: Wrap<A[K]>;
    } : never) | Config<A>;
}
/**
 * Constructs a config from a tuple / struct / arguments of configs.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const all: <const Arg extends Iterable<Config<any>> | Record<string, Config<any>>>(arg: Arg) => Config<[
    Arg
] extends [ReadonlyArray<Config<any>>] ? {
    -readonly [K in keyof Arg]: [Arg[K]] extends [Config<infer A>] ? A : never;
} : [Arg] extends [Iterable<Config<infer A>>] ? Array<A> : [Arg] extends [Record<string, Config<any>>] ? {
    -readonly [K in keyof Arg]: [Arg[K]] extends [Config<infer A>] ? A : never;
} : never>;
/**
 * Constructs a config for an array of values.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const array: <A>(config: Config<A>, name?: string | undefined) => Config<ReadonlyArray<A>>;
/**
 * Constructs a config for a boolean value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const boolean: (name?: string | undefined) => Config<boolean>;
/**
 * Constructs a config for a sequence of values.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const chunk: <A>(config: Config<A>, name?: string | undefined) => Config<Chunk.Chunk<A>>;
/**
 * Constructs a config for a date value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const date: (name?: string | undefined) => Config<Date>;
/**
 * Constructs a config that fails with the specified message.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const fail: (message: string) => Config<never>;
/**
 * Constructs a config for a float value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const number: (name?: string | undefined) => Config<number>;
/**
 * Constructs a config for a integer value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const integer: (name?: string | undefined) => Config<number>;
/**
 * Constructs a config for a `LogLevel` value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const logLevel: (name?: string | undefined) => Config<LogLevel.LogLevel>;
/**
 * This function returns `true` if the specified value is an `Config` value,
 * `false` otherwise.
 *
 * This function can be useful for checking the type of a value before
 * attempting to operate on it as an `Config` value. For example, you could
 * use `isConfig` to check the type of a value before using it as an
 * argument to a function that expects an `Config` value.
 *
 * @param u - The value to check for being a `Config` value.
 *
 * @returns `true` if the specified value is a `Config` value, `false`
 * otherwise.
 *
 * @since 1.0.0
 * @category refinements
 */
export declare const isConfig: (u: unknown) => u is Config<unknown>;
/**
 * Returns a  config whose structure is the same as this one, but which produces
 * a different value, constructed using the specified function.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const map: {
    <A, B>(f: (a: A) => B): (self: Config<A>) => Config<B>;
    <A, B>(self: Config<A>, f: (a: A) => B): Config<B>;
};
/**
 * Returns a config whose structure is the same as this one, but which may
 * produce a different value, constructed using the specified function, which
 * may throw exceptions that will be translated into validation errors.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const mapAttempt: {
    <A, B>(f: (a: A) => B): (self: Config<A>) => Config<B>;
    <A, B>(self: Config<A>, f: (a: A) => B): Config<B>;
};
/**
 * Returns a new config whose structure is the samea as this one, but which
 * may produce a different value, constructed using the specified fallible
 * function.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const mapOrFail: {
    <A, B>(f: (a: A) => Either.Either<ConfigError.ConfigError, B>): (self: Config<A>) => Config<B>;
    <A, B>(self: Config<A>, f: (a: A) => Either.Either<ConfigError.ConfigError, B>): Config<B>;
};
/**
 * Returns a config that has this configuration nested as a property of the
 * specified name.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const nested: {
    (name: string): <A>(self: Config<A>) => Config<A>;
    <A>(self: Config<A>, name: string): Config<A>;
};
/**
 * Returns a config whose structure is preferentially described by this
 * config, but which falls back to the specified config if there is an issue
 * reading from this config.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const orElse: {
    <A2>(that: LazyArg<Config<A2>>): <A>(self: Config<A>) => Config<A2 | A>;
    <A, A2>(self: Config<A>, that: LazyArg<Config<A2>>): Config<A | A2>;
};
/**
 * Returns configuration which reads from this configuration, but which falls
 * back to the specified configuration if reading from this configuration
 * fails with an error satisfying the specified predicate.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const orElseIf: {
    <A2>(options: {
        readonly if: Predicate<ConfigError.ConfigError>;
        readonly orElse: LazyArg<Config<A2>>;
    }): <A>(self: Config<A>) => Config<A>;
    <A, A2>(self: Config<A>, options: {
        readonly if: Predicate<ConfigError.ConfigError>;
        readonly orElse: LazyArg<Config<A2>>;
    }): Config<A>;
};
/**
 * Returns an optional version of this config, which will be `None` if the
 * data is missing from configuration, and `Some` otherwise.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const option: <A>(self: Config<A>) => Config<Option.Option<A>>;
/**
 * Constructs a new primitive config.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const primitive: <A>(description: string, parse: (text: string) => Either.Either<ConfigError.ConfigError, A>) => Config<A>;
/**
 * Returns a config that describes a sequence of values, each of which has the
 * structure of this config.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const repeat: <A>(self: Config<A>) => Config<Array<A>>;
/**
 * Constructs a config for a secret value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const secret: (name?: string | undefined) => Config<ConfigSecret.ConfigSecret>;
/**
 * Constructs a config for a sequence of values.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const hashSet: <A>(config: Config<A>, name?: string | undefined) => Config<HashSet.HashSet<A>>;
/**
 * Constructs a config for a string value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const string: (name?: string | undefined) => Config<string>;
/**
 * Constructs a config which contains the specified value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const succeed: <A>(value: A) => Config<A>;
/**
 * Lazily constructs a config.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const suspend: <A>(config: LazyArg<Config<A>>) => Config<A>;
/**
 * Constructs a config which contains the specified lazy value.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const sync: <A>(value: LazyArg<A>) => Config<A>;
/**
 * Constructs a config for a sequence of values.
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const hashMap: <A>(config: Config<A>, name?: string | undefined) => Config<HashMap.HashMap<string, A>>;
/**
 * Constructs a config from some configuration wrapped with the `Wrap<A>` utility type.
 *
 * For example:
 *
 * ```
 * import { Config, unwrap } from "@effect/io/Config"
 *
 * interface Options { key: string }
 *
 * const makeConfig = (config: Config.Wrap<Options>): Config<Options> => unwrap(config)
 * ```
 *
 * @since 1.0.0
 * @category constructors
 */
export declare const unwrap: <A>(wrapped: Config.Wrap<A>) => Config<A>;
/**
 * Returns a config that describes the same structure as this one, but which
 * performs validation during loading.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const validate: {
    <A, B extends A>(options: {
        readonly message: string;
        readonly validation: Refinement<A, B>;
    }): (self: Config<A>) => Config<B>;
    <A>(options: {
        readonly message: string;
        readonly validation: Predicate<A>;
    }): (self: Config<A>) => Config<A>;
    <A, B extends A>(self: Config<A>, options: {
        readonly message: string;
        readonly validation: Refinement<A, B>;
    }): Config<B>;
    <A>(self: Config<A>, options: {
        readonly message: string;
        readonly validation: Predicate<A>;
    }): Config<A>;
};
/**
 * Returns a config that describes the same structure as this one, but has the
 * specified default value in case the information cannot be found.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const withDefault: {
    <A2>(def: A2): <A>(self: Config<A>) => Config<A2 | A>;
    <A, A2>(self: Config<A>, def: A2): Config<A | A2>;
};
/**
 * Adds a description to this configuration, which is intended for humans.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const withDescription: {
    (description: string): <A>(self: Config<A>) => Config<A>;
    <A>(self: Config<A>, description: string): Config<A>;
};
/**
 * Returns a config that is the composition of this config and the specified
 * config.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const zip: {
    <B>(that: Config<B>): <A>(self: Config<A>) => Config<readonly [A, B]>;
    <A, B>(self: Config<A>, that: Config<B>): Config<readonly [A, B]>;
};
/**
 * Returns a config that is the composes this config and the specified config
 * using the provided function.
 *
 * @since 1.0.0
 * @category utils
 */
export declare const zipWith: {
    <B, A, C>(that: Config<B>, f: (a: A, b: B) => C): (self: Config<A>) => Config<C>;
    <A, B, C>(self: Config<A>, that: Config<B>, f: (a: A, b: B) => C): Config<C>;
};
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