import { RouteObject, createMemoryRouter } from 'react-router';
import React from 'react';

/**
 * Actions represent the type of change to a location value.
 */
declare enum Action {
    /**
     * A POP indicates a change to an arbitrary index in the history stack, such
     * as a back or forward navigation. It does not describe the direction of the
     * navigation, only that the current index changed.
     *
     * Note: This is the default action for newly created history objects.
     */
    Pop = "POP",
    /**
     * A PUSH indicates a new entry being added to the history stack, such as when
     * a link is clicked and a new page loads. When this happens, all subsequent
     * entries in the stack are lost.
     */
    Push = "PUSH",
    /**
     * A REPLACE indicates the entry at the current index in the history stack
     * being replaced by a new one.
     */
    Replace = "REPLACE"
}
/**
 * The pathname, search, and hash values of a URL.
 */
interface Path {
    /**
     * A URL pathname, beginning with a /.
     */
    pathname: string;
    /**
     * A URL search string, beginning with a ?.
     */
    search: string;
    /**
     * A URL fragment identifier, beginning with a #.
     */
    hash: string;
}
/**
 * An entry in a history stack. A location contains information about the
 * URL path, as well as possibly some arbitrary state and a key.
 */
interface Location<State = any> extends Path {
    /**
     * A value of arbitrary data associated with this location.
     */
    state: State;
    /**
     * A unique string associated with this location. May be used to safely store
     * and retrieve data in some other storage API, like `localStorage`.
     *
     * Note: This value is always "default" on the initial location.
     */
    key: string;
}

/**
 * Map of routeId -> data returned from a loader/action/error
 */
interface RouteData {
    [routeId: string]: any;
}
type LowerCaseFormMethod = "get" | "post" | "put" | "patch" | "delete";
type UpperCaseFormMethod = Uppercase<LowerCaseFormMethod>;
/**
 * Active navigation/fetcher form methods are exposed in lowercase on the
 * RouterState
 */
type FormMethod = LowerCaseFormMethod;
/**
 * In v7, active navigation/fetcher form methods are exposed in uppercase on the
 * RouterState.  This is to align with the normalization done via fetch().
 */
type V7_FormMethod = UpperCaseFormMethod;
type FormEncType = "application/x-www-form-urlencoded" | "multipart/form-data" | "application/json" | "text/plain";
type JsonObject = {
    [Key in string]: JsonValue;
} & {
    [Key in string]?: JsonValue | undefined;
};
type JsonArray = JsonValue[] | readonly JsonValue[];
type JsonPrimitive = string | number | boolean | null;
type JsonValue = JsonPrimitive | JsonObject | JsonArray;
/**
 * @private
 * Internal interface to pass around for action submissions, not intended for
 * external consumption
 */
type Submission = {
    formMethod: FormMethod | V7_FormMethod;
    formAction: string;
    formEncType: FormEncType;
    formData: FormData;
    json: undefined;
    text: undefined;
} | {
    formMethod: FormMethod | V7_FormMethod;
    formAction: string;
    formEncType: FormEncType;
    formData: undefined;
    json: JsonValue;
    text: undefined;
} | {
    formMethod: FormMethod | V7_FormMethod;
    formAction: string;
    formEncType: FormEncType;
    formData: undefined;
    json: undefined;
    text: string;
};
/**
 * @private
 * Arguments passed to route loader/action functions.  Same for now but we keep
 * this as a private implementation detail in case they diverge in the future.
 */
interface DataFunctionArgs<Context> {
    request: Request;
    params: Params;
    context?: Context;
}
/**
 * Arguments passed to loader functions
 */
interface LoaderFunctionArgs<Context = any> extends DataFunctionArgs<Context> {
}
/**
 * Arguments passed to action functions
 */
interface ActionFunctionArgs<Context = any> extends DataFunctionArgs<Context> {
}
/**
 * Loaders and actions can return anything except `undefined` (`null` is a
 * valid return value if there is no data to return).  Responses are preferred
 * and will ease any future migration to Remix
 */
type DataFunctionValue = Response | NonNullable<unknown> | null;
type DataFunctionReturnValue = Promise<DataFunctionValue> | DataFunctionValue;
/**
 * Route loader function signature
 */
type LoaderFunction<Context = any> = {
    (args: LoaderFunctionArgs<Context>, handlerCtx?: unknown): DataFunctionReturnValue;
} & {
    hydrate?: boolean;
};
/**
 * Route action function signature
 */
interface ActionFunction<Context = any> {
    (args: ActionFunctionArgs<Context>, handlerCtx?: unknown): DataFunctionReturnValue;
}
/**
 * Arguments passed to shouldRevalidate function
 */
interface ShouldRevalidateFunctionArgs {
    currentUrl: URL;
    currentParams: AgnosticDataRouteMatch["params"];
    nextUrl: URL;
    nextParams: AgnosticDataRouteMatch["params"];
    formMethod?: Submission["formMethod"];
    formAction?: Submission["formAction"];
    formEncType?: Submission["formEncType"];
    text?: Submission["text"];
    formData?: Submission["formData"];
    json?: Submission["json"];
    actionStatus?: number;
    actionResult?: any;
    defaultShouldRevalidate: boolean;
}
/**
 * Route shouldRevalidate function signature.  This runs after any submission
 * (navigation or fetcher), so we flatten the navigation/fetcher submission
 * onto the arguments.  It shouldn't matter whether it came from a navigation
 * or a fetcher, what really matters is the URLs and the formData since loaders
 * have to re-run based on the data models that were potentially mutated.
 */
interface ShouldRevalidateFunction {
    (args: ShouldRevalidateFunctionArgs): boolean;
}
/**
 * Keys we cannot change from within a lazy() function. We spread all other keys
 * onto the route. Either they're meaningful to the router, or they'll get
 * ignored.
 */
type ImmutableRouteKey = "lazy" | "caseSensitive" | "path" | "id" | "index" | "children";
type RequireOne<T, Key = keyof T> = Exclude<{
    [K in keyof T]: K extends Key ? Omit<T, K> & Required<Pick<T, K>> : never;
}[keyof T], undefined>;
/**
 * lazy() function to load a route definition, which can add non-matching
 * related properties to a route
 */
interface LazyRouteFunction<R extends AgnosticRouteObject> {
    (): Promise<RequireOne<Omit<R, ImmutableRouteKey>>>;
}
/**
 * Base RouteObject with common props shared by all types of routes
 */
type AgnosticBaseRouteObject = {
    caseSensitive?: boolean;
    path?: string;
    id?: string;
    loader?: LoaderFunction | boolean;
    action?: ActionFunction | boolean;
    hasErrorBoundary?: boolean;
    shouldRevalidate?: ShouldRevalidateFunction;
    handle?: any;
    lazy?: LazyRouteFunction<AgnosticBaseRouteObject>;
};
/**
 * Index routes must not have children
 */
type AgnosticIndexRouteObject = AgnosticBaseRouteObject & {
    children?: undefined;
    index: true;
};
/**
 * Non-index routes may have children, but cannot have index
 */
type AgnosticNonIndexRouteObject = AgnosticBaseRouteObject & {
    children?: AgnosticRouteObject[];
    index?: false;
};
/**
 * A route object represents a logical route, with (optionally) its child
 * routes organized in a tree-like structure.
 */
type AgnosticRouteObject = AgnosticIndexRouteObject | AgnosticNonIndexRouteObject;
type AgnosticDataIndexRouteObject = AgnosticIndexRouteObject & {
    id: string;
};
type AgnosticDataNonIndexRouteObject = AgnosticNonIndexRouteObject & {
    children?: AgnosticDataRouteObject[];
    id: string;
};
/**
 * A data route object, which is just a RouteObject with a required unique ID
 */
type AgnosticDataRouteObject = AgnosticDataIndexRouteObject | AgnosticDataNonIndexRouteObject;
/**
 * The parameters that were parsed from the URL path.
 */
type Params<Key extends string = string> = {
    readonly [key in Key]: string | undefined;
};
/**
 * A RouteMatch contains info about how a route matched a URL.
 */
interface AgnosticRouteMatch<ParamKey extends string = string, RouteObjectType extends AgnosticRouteObject = AgnosticRouteObject> {
    /**
     * The names and values of dynamic parameters in the URL.
     */
    params: Params<ParamKey>;
    /**
     * The portion of the URL pathname that was matched.
     */
    pathname: string;
    /**
     * The portion of the URL pathname that was matched before child routes.
     */
    pathnameBase: string;
    /**
     * The route object that was used to match.
     */
    route: RouteObjectType;
}
interface AgnosticDataRouteMatch extends AgnosticRouteMatch<string, AgnosticDataRouteObject> {
}

/**
 * State maintained internally by the router.  During a navigation, all states
 * reflect the the "old" location unless otherwise noted.
 */
interface RouterState {
    /**
     * The action of the most recent navigation
     */
    historyAction: Action;
    /**
     * The current location reflected by the router
     */
    location: Location;
    /**
     * The current set of route matches
     */
    matches: AgnosticDataRouteMatch[];
    /**
     * Tracks whether we've completed our initial data load
     */
    initialized: boolean;
    /**
     * Current scroll position we should start at for a new view
     *  - number -> scroll position to restore to
     *  - false -> do not restore scroll at all (used during submissions)
     *  - null -> don't have a saved position, scroll to hash or top of page
     */
    restoreScrollPosition: number | false | null;
    /**
     * Indicate whether this navigation should skip resetting the scroll position
     * if we are unable to restore the scroll position
     */
    preventScrollReset: boolean;
    /**
     * Tracks the state of the current navigation
     */
    navigation: Navigation;
    /**
     * Tracks any in-progress revalidations
     */
    revalidation: RevalidationState;
    /**
     * Data from the loaders for the current matches
     */
    loaderData: RouteData;
    /**
     * Data from the action for the current matches
     */
    actionData: RouteData | null;
    /**
     * Errors caught from loaders for the current matches
     */
    errors: RouteData | null;
    /**
     * Map of current fetchers
     */
    fetchers: Map<string, Fetcher>;
    /**
     * Map of current blockers
     */
    blockers: Map<string, Blocker>;
}
/**
 * Data that can be passed into hydrate a Router from SSR
 */
type HydrationState = Partial<Pick<RouterState, "loaderData" | "actionData" | "errors">>;
/**
 * Future flags to toggle new feature behavior
 */
interface FutureConfig {
    v7_fetcherPersist: boolean;
    v7_normalizeFormMethod: boolean;
    v7_partialHydration: boolean;
    v7_prependBasename: boolean;
    v7_relativeSplatPath: boolean;
    v7_skipActionErrorRevalidation: boolean;
}
/**
 * Potential states for state.navigation
 */
type NavigationStates = {
    Idle: {
        state: "idle";
        location: undefined;
        formMethod: undefined;
        formAction: undefined;
        formEncType: undefined;
        formData: undefined;
        json: undefined;
        text: undefined;
    };
    Loading: {
        state: "loading";
        location: Location;
        formMethod: Submission["formMethod"] | undefined;
        formAction: Submission["formAction"] | undefined;
        formEncType: Submission["formEncType"] | undefined;
        formData: Submission["formData"] | undefined;
        json: Submission["json"] | undefined;
        text: Submission["text"] | undefined;
    };
    Submitting: {
        state: "submitting";
        location: Location;
        formMethod: Submission["formMethod"];
        formAction: Submission["formAction"];
        formEncType: Submission["formEncType"];
        formData: Submission["formData"];
        json: Submission["json"];
        text: Submission["text"];
    };
};
type Navigation = NavigationStates[keyof NavigationStates];
type RevalidationState = "idle" | "loading";
/**
 * Potential states for fetchers
 */
type FetcherStates<TData = any> = {
    Idle: {
        state: "idle";
        formMethod: undefined;
        formAction: undefined;
        formEncType: undefined;
        text: undefined;
        formData: undefined;
        json: undefined;
        data: TData | undefined;
    };
    Loading: {
        state: "loading";
        formMethod: Submission["formMethod"] | undefined;
        formAction: Submission["formAction"] | undefined;
        formEncType: Submission["formEncType"] | undefined;
        text: Submission["text"] | undefined;
        formData: Submission["formData"] | undefined;
        json: Submission["json"] | undefined;
        data: TData | undefined;
    };
    Submitting: {
        state: "submitting";
        formMethod: Submission["formMethod"];
        formAction: Submission["formAction"];
        formEncType: Submission["formEncType"];
        text: Submission["text"];
        formData: Submission["formData"];
        json: Submission["json"];
        data: TData | undefined;
    };
};
type Fetcher<TData = any> = FetcherStates<TData>[keyof FetcherStates<TData>];
interface BlockerBlocked {
    state: "blocked";
    reset(): void;
    proceed(): void;
    location: Location;
}
interface BlockerUnblocked {
    state: "unblocked";
    reset: undefined;
    proceed: undefined;
    location: undefined;
}
interface BlockerProceeding {
    state: "proceeding";
    reset: undefined;
    proceed: undefined;
    location: Location;
}
type Blocker = BlockerUnblocked | BlockerBlocked | BlockerProceeding;

/**
 * SetDifference (same as Exclude)
 * @desc Set difference of given union types `A` and `B`
 * @example
 *   // Expect: "1"
 *   SetDifference<'1' | '2' | '3', '2' | '3' | '4'>;
 *
 *   // Expect: string | number
 *   SetDifference<string | number | (() => void), Function>;
 */
declare type SetDifference<A, B> = A extends B ? never : A;
/**
 * Intersection
 * @desc From `T` pick properties that exist in `U`
 * @example
 *   type Props = { name: string; age: number; visible: boolean };
 *   type DefaultProps = { age: number };
 *
 *   // Expect: { age: number; }
 *   type DuplicateProps = Intersection<Props, DefaultProps>;
 */
declare type Intersection<T extends object, U extends object> = Pick<T, Extract<keyof T, keyof U> & Extract<keyof U, keyof T>>;
/**
 * Diff
 * @desc From `T` remove properties that exist in `U`
 * @example
 *   type Props = { name: string; age: number; visible: boolean };
 *   type DefaultProps = { age: number };
 *
 *   // Expect: { name: string; visible: boolean; }
 *   type DiffProps = Diff<Props, DefaultProps>;
 */
declare type Diff<T extends object, U extends object> = Pick<T, SetDifference<keyof T, keyof U>>;
/**
 * Overwrite
 * @desc From `U` overwrite properties to `T`
 * @example
 *   type Props = { name: string; age: number; visible: boolean };
 *   type NewProps = { age: string; other: string };
 *
 *   // Expect: { name: string; age: string; visible: boolean; }
 *   type ReplacedProps = Overwrite<Props, NewProps>;
 */
declare type Overwrite<T extends object, U extends object, I = Diff<T, U> & Intersection<U, T>> = Pick<I, keyof I>;

type Merge<T, Deep = false> = {
    [K in keyof T]: Deep extends true ? (T extends object ? Merge<T[K], true> : T[K]) : T[K];
} & {};

type FutureConfigRouter = Exclude<Parameters<typeof createMemoryRouter>[1], undefined>['future'];
type RouterParameters = {
    hydrationData?: HydrationState;
    routing?: string | RouterRoute | [RouterRoute, ...RouterRoute[]];
    future?: Partial<FutureConfig & FutureConfigRouter>;
    fallback?: React.JSX.Element;
};
type LocationParameters<PathParams extends Record<string, string | number> = Record<string, string | number>> = {
    path?: string | ((inferredPath: string, pathParams: PathParams) => string | undefined);
    pathParams?: PathParams;
    searchParams?: ConstructorParameters<typeof URLSearchParams>[0];
    hash?: string;
    state?: unknown;
};
type NavigationHistoryEntry = LocationParameters & {
    isInitialLocation?: boolean;
};
type RouterRoute = Overwrite<RouteObject, {
    children?: RouterRoute[];
}> & StoryRouteIdentifier;
type RouteDefinition = React.ReactElement | RouteDefinitionObject;
type NonIndexRouteDefinition = React.ReactElement | NonIndexRouteDefinitionObject;
type RouteDefinitionObject = Merge<Omit<RouteObject, 'children'> & StoryRouteIdentifier>;
type NonIndexRouteDefinitionObject = RouteDefinitionObject & {
    index?: false;
};
type StoryRouteIdentifier = {
    useStoryElement?: boolean;
};
type RoutingHelper = (...args: never[]) => [RouterRoute, ...RouterRoute[]];

export type { LocationParameters as L, NavigationHistoryEntry as N, RouterRoute as R, RouterParameters as a, NonIndexRouteDefinitionObject as b, RouteDefinition as c, RouteDefinitionObject as d, NonIndexRouteDefinition as e, RoutingHelper as f };