import * as React from 'react';
import { MutableRefObject, ReactElement } from 'react';

/** These types can be animated */
type Animatable<T = any> = T extends number ? number : T extends string ? string : T extends ReadonlyArray<number | string> ? Array<number | string> extends T ? ReadonlyArray<number | string> : {
    [P in keyof T]: Animatable<T[P]>;
} : never;

/**
 * MIT License
 * Copyright (c) Alec Larson
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/** Ensure each type of `T` is an array */
type Arrify<T> = [T, T] extends [infer T, infer DT] ? DT extends ReadonlyArray<any> ? Array<DT[number]> extends DT ? ReadonlyArray<T extends ReadonlyArray<infer U> ? U : T> : DT : ReadonlyArray<T extends ReadonlyArray<infer U> ? U : T> : never;
/** Override the property types of `A` with `B` and merge any new properties */
type Merge<A, B> = Remap<{
    [P in keyof A]: P extends keyof B ? B[P] : A[P];
} & Omit<B, keyof A>>;
/** Return the keys of `T` with values that are assignable to `U` */
type AssignableKeys<T, U> = T extends object ? U extends object ? {
    [P in Extract<keyof T, keyof U>]: T[P] extends U[P] ? P : never;
}[Extract<keyof T, keyof U>] : never : never;
/** Better type errors for overloads with generic types */
type Constrain<T, U> = [T] extends [Any] ? U : [T] extends [U] ? T : U;
/** Try to simplify `&` out of an object type */
type Remap<T> = {} & {
    [P in keyof T]: T[P];
};
type Pick<T, K extends keyof T> = {} & {
    [P in K]: T[P];
};
type Omit<T, K> = Pick<T, Exclude<keyof T, K>>;
type Partial<T> = {} & {
    [P in keyof T]?: T[P] | undefined;
};
type Overwrite<T, U> = Remap<Omit<T, keyof U> & U>;
type MergeUnknown<T, U> = Remap<T & Omit<U, keyof T>>;
type MergeDefaults<T extends object, U extends Partial<T>> = Remap<Omit<T, keyof U> & Partial<Pick<T, Extract<keyof U, keyof T>>>>;
type OneOrMore<T> = T | readonly T[];
type Falsy = false | null | undefined;
type NoInfer<T> = [T][T extends any ? 0 : never];
type StaticProps<T> = Omit<T, keyof T & 'prototype'>;
interface Lookup<T = any> {
    [key: string]: T;
}
type LoosePick<T, K> = {} & Pick<T, K & keyof T>;
/** Intersected with other object types to allow for unknown properties */
interface UnknownProps extends Lookup<unknown> {
}
/** Use `[T] extends [Any]` to know if a type parameter is `any` */
declare class Any {
    private _;
}
type AnyFn<In extends ReadonlyArray<any> = any[], Out = any> = (...args: In) => Out;
/** Ensure the given type is an object type */
type ObjectType<T> = T extends object ? T : {};
/** Intersect a union of objects but merge property types with _unions_ */
type ObjectFromUnion<T extends object> = Remap<{
    [P in keyof Intersect<T>]: T extends infer U ? P extends keyof U ? U[P] : never : never;
}>;
/** Convert a union to an intersection */
type Intersect<U> = (U extends any ? (k: U) => void : never) extends (k: infer I) => void ? I : never;
type AllKeys<T> = T extends any ? keyof T : never;
type Exclusive<T> = AllKeys<T> extends infer K ? T extends any ? Remap<LoosePick<T, K> & {
    [P in Exclude<K & keyof any, keyof T>]?: undefined;
}> : never : never;
/** An object that needs to be manually disposed of */
interface Disposable {
    dispose(): void;
}
type RefProp<T> = MutableRefObject<T | null | undefined>;
type ElementType<P = any> = React.ElementType<P> | LeafFunctionComponent<P>;
type LeafFunctionComponent<P> = {
    (props: P): ReactElement | null;
    displayName?: string;
};
type ComponentPropsWithRef<T extends ElementType> = T extends React.ComponentClass<infer P> ? React.PropsWithoutRef<P> & React.RefAttributes<InstanceType<T>> : React.PropsWithRef<React.ComponentProps<T>>;
type ComponentType<P = {}> = React.ComponentClass<P> | LeafFunctionComponent<P>;

type EasingFunction = (t: number) => number;
type ExtrapolateType = 'identity' | 'clamp' | 'extend';
interface InterpolatorFactory {
    <Input, Output>(interpolator: InterpolatorFn<Input, Output>): typeof interpolator;
    <Output>(config: InterpolatorConfig<Output>): (input: number) => Animatable<Output>;
    <Output>(range: readonly number[], output: readonly Constrain<Output, Animatable>[], extrapolate?: ExtrapolateType): (input: number) => Animatable<Output>;
    <Input, Output>(...args: InterpolatorArgs<Input, Output>): InterpolatorFn<Input, Output>;
}
type InterpolatorArgs<Input = any, Output = any> = [InterpolatorFn<Arrify<Input>, Output>] | [InterpolatorConfig<Output>] | [
    readonly number[],
    readonly Constrain<Output, Animatable>[],
    (ExtrapolateType | undefined)?
];
type InterpolatorFn<Input, Output> = (...inputs: Arrify<Input>) => Output;
type InterpolatorConfig<Output = Animatable> = {
    /**
     * What happens when the spring goes below its target value.
     *
     *  - `extend` continues the interpolation past the target value
     *  - `clamp` limits the interpolation at the max value
     *  - `identity` sets the value to the interpolation input as soon as it hits the boundary
     *
     * @default 'extend'
     */
    extrapolateLeft?: ExtrapolateType;
    /**
     * What happens when the spring exceeds its target value.
     *
     *  - `extend` continues the interpolation past the target value
     *  - `clamp` limits the interpolation at the max value
     *  - `identity` sets the value to the interpolation input as soon as it hits the boundary
     *
     * @default 'extend'
     */
    extrapolateRight?: ExtrapolateType;
    /**
     * What happens when the spring exceeds its target value.
     * Shortcut to set `extrapolateLeft` and `extrapolateRight`.
     *
     *  - `extend` continues the interpolation past the target value
     *  - `clamp` limits the interpolation at the max value
     *  - `identity` sets the value to the interpolation input as soon as it hits the boundary
     *
     * @default 'extend'
     */
    extrapolate?: ExtrapolateType;
    /**
     * Input ranges mapping the interpolation to the output values.
     *
     * @example
     *
     *   range: [0, 0.5, 1], output: ['yellow', 'orange', 'red']
     *
     * @default [0,1]
     */
    range?: readonly number[];
    /**
     * Output values from the interpolation function. Should match the length of the `range` array.
     */
    output: readonly Constrain<Output, Animatable>[];
    /**
     * Transformation to apply to the value before interpolation.
     */
    map?: (value: number) => number;
    /**
     * Custom easing to apply in interpolator.
     */
    easing?: EasingFunction;
};

export { AllKeys, Animatable, Any, AnyFn, Arrify, AssignableKeys, ComponentPropsWithRef, ComponentType, Constrain, Disposable, EasingFunction, ElementType, Exclusive, ExtrapolateType, Falsy, InterpolatorArgs, InterpolatorConfig, InterpolatorFactory, InterpolatorFn, Lookup, LoosePick, Merge, MergeDefaults, MergeUnknown, NoInfer, ObjectFromUnion, ObjectType, Omit, OneOrMore, Overwrite, Partial, Pick, RefProp, Remap, StaticProps, UnknownProps };