import { VALUE_UNCHANGED } from './constants.js';
import { Schema } from './schema.js';
import { normalizeDefaultResult, normalizeDeprecatedResult, normalizeExpectedResult, normalizeForwardResult, normalizeRedirectResult, normalizeValidateResult, NotEmptyArray } from './utils.js';
export interface Utils {
    logger: Logger;
    loggerPrintWidth: number;
    descriptor: Descriptor;
    schemas: Record<string, Schema<any>>;
    normalizeDefaultResult: typeof normalizeDefaultResult;
    normalizeExpectedResult: typeof normalizeExpectedResult;
    normalizeDeprecatedResult: typeof normalizeDeprecatedResult;
    normalizeForwardResult: typeof normalizeForwardResult;
    normalizeRedirectResult: typeof normalizeRedirectResult;
    normalizeValidateResult: typeof normalizeValidateResult;
}
export interface Logger {
    warn(message: string): void;
}
export interface Descriptor {
    key: (key: OptionKey) => string;
    value: (value: OptionValue) => string;
    pair: (pair: OptionPair) => string;
}
export type UnknownHandler = (key: OptionKey, value: OptionValue, utils: Utils) => void | Options;
export type InvalidHandler = (key: OptionKey, value: OptionValue, utils: Utils) => string | Error;
export type NormalizedInvalidHandler = (key: OptionKey, value: OptionValue, utils: Utils) => Error;
export type DeprecatedHandler = (keyOrPair: OptionKey | OptionPair, redirectTo: undefined | TransferTo, utils: Utils) => string;
export type IdentifyMissing = (key: string, options: Options) => boolean;
export type IdentifyRequired = (key: string) => boolean;
export type Preprocess = (options: Options, utils: Utils) => Options;
export type Postprocess = (options: Options, utils: Utils) => PostprocessResult;
export type PostprocessResult = typeof VALUE_UNCHANGED | {
    delete?: string[];
    override?: Options;
};
export type OptionKey = string;
export type OptionValue = any;
export interface OptionPair {
    key: OptionKey;
    value: OptionValue;
}
export interface Options {
    [key: string]: OptionValue;
}
export type TransferTo = OptionKey | OptionPair;
export type TransferResult<$Value> = TransferTo | {
    from?: $Value;
    to: TransferTo;
};
export interface NormalizedTransferResult<$Value> {
    from: $Value;
    to: TransferTo;
}
export type ForwardResult<$Value> = undefined | TransferResult<$Value> | Array<TransferResult<$Value>>;
export type NormalizedForwardResult<$Value> = Array<NormalizedTransferResult<$Value>>;
export type RedirectResult<$Value> = ForwardResult<$Value> | {
    remain?: $Value;
    redirect: ForwardResult<$Value>;
};
export interface NormalizedRedirectResult<$Value> {
    remain?: $Value;
    redirect: NormalizedForwardResult<$Value>;
}
export type ValidateResult = boolean | {
    value: unknown;
};
export type NormalizedValidateResult = true | {
    value: unknown;
};
export type DeprecatedResult<$Value> = boolean | {
    value: $Value;
} | Array<{
    value: $Value;
}>;
export type NormalizedDeprecatedResult<$Value> = false | NotEmptyArray<{
    value: $Value;
}>;
export type NormalizedDeprecatedResultWithTrue<$Value> = true | NormalizedDeprecatedResult<$Value>;
export type ExpectedResult = string | {
    text?: string;
    list?: {
        title: string;
        values: ExpectedResult[];
    };
};
export interface NormalizedExpectedResult {
    text?: string;
    list?: {
        title: string;
        values: NormalizedExpectedResult[];
    };
}
export type DefaultResult<$Value> = undefined | {
    value?: $Value;
};
export interface NormalizedDefaultResult<$Value> {
    value?: $Value;
}