import type { ReadonlyDeep } from "hry-types/src/Any/_api";
import type { IfExtends } from "hry-types/src/Any/IfExtends";
import type { IsPureObject } from "hry-types/src/Any/IsPureObject";
import type { NoInfer } from "hry-types/src/Generic/NoInfer";
import type { EmptyObject } from "hry-types/src/Misc/EmptyObject";
type getFirstKeys<T extends string> = T extends `${infer F}.${string}` ? F : never;
type getLastKeys<T extends string> = T extends `${string}.${infer L}` ? L : never;
type AddFieldsOfObject<TWatchData extends object, _WatchKeys extends keyof TWatchData, secondKeys extends string = {
    [k in _WatchKeys]: IsPureObject<Exclude<TWatchData[k], null>> extends true ? `${k & string}.${(keyof Exclude<TWatchData[k], null>) & string}` : never;
}[_WatchKeys]> = {
    [k in _WatchKeys as IsPureObject<Exclude<TWatchData[k], null>> extends true ? `${k & string}.${(keyof Exclude<TWatchData[k], null>) & string}` : never]?: unknown;
} & {
    [k in secondKeys]?: (newValue: ReadonlyDeep<(Exclude<TWatchData[getFirstKeys<k>], null>)[getLastKeys<k>] & {}>, oldValue: ReadonlyDeep<(Exclude<TWatchData[getFirstKeys<k>], null>)[getLastKeys<k>]>) => void;
};
export type WatchOption<TWatchData extends object, _WatchKeys extends keyof TWatchData = keyof TWatchData> = {
    watch?: IfExtends<{}, TWatchData, EmptyObject, NoInfer<{
        [k in _WatchKeys]?: (newValue: ReadonlyDeep<Exclude<TWatchData[k], null>>, oldValue: ReadonlyDeep<TWatchData[k]>) => void;
    } & {
        [k in _WatchKeys as never]: unknown;
    } & AddFieldsOfObject<TWatchData, _WatchKeys>>>;
};
export {};