import type { PatchResult } from "../data/hash-table/patch";
export type ObserverEvent = "insert" | "update" | "delete" | "*";
export type InsertObserver<T> = (newRecord: T) => void;
export type UpdateObserver<T> = (updatedRecord: T, details: {
    old: T;
    new: T;
}) => void;
export type DeleteObserver<T> = (deleted: T) => void;
export type GenericObserver<T> = (event: MutationEvent<T>) => void;
export type Observer<T> = InsertObserver<T> | UpdateObserver<T> | DeleteObserver<T> | GenericObserver<T>;
export type Observers<T> = {
    insert: {
        id: number;
        callback: InsertObserver<T>;
    }[];
    update: {
        id: number;
        callback: UpdateObserver<T>;
    }[];
    delete: {
        id: number;
        callback: DeleteObserver<T>;
    }[];
    "*": {
        id: number;
        callback: GenericObserver<T>;
    }[];
};
export type InsertEvent<T> = {
    event: "insert";
    data: T;
};
export type DeleteEvent<T> = {
    event: "delete";
    data: T;
};
export type UpdateEvent<T> = {
    event: "updated";
    data: {
        old: T;
        new: T;
    };
};
export type MutationEvent<T> = InsertEvent<T> | DeleteEvent<T> | UpdateEvent<T>;
export declare function shouldRaiseInsertEvent<T>(mutations: PatchResult<T>[]): boolean | null;
export declare function shouldRaiseDeleteEvent<T>(mutations: PatchResult<T>[]): boolean | null;
export declare function shouldRaiseUpdateEvent<T>(mutations: PatchResult<T>[]): boolean | null;
export declare function createEvents<T>(mutations: PatchResult<T>[], getCurrentValue: ($id: string) => T): MutationEvent<T>[];