import { Signal } from '@angular/core';
import { Observable } from 'rxjs';
export type DatasetTotalMode = 'exact' | 'estimated' | 'unavailable';
export interface DatasetPageInfo {
    limit: number;
    hasMore: boolean;
    nextCursor?: string;
}
export interface DatasetSummary {
    total?: number;
    totalMode?: DatasetTotalMode;
}
export interface DatasetPage<T> {
    items: T[];
    pageInfo: DatasetPageInfo;
    summary?: DatasetSummary;
    operationId?: string;
}
export interface DatasetLoadParams {
    limit: number;
    cursor?: string;
    refresh: boolean;
}
export interface DatasetState<T> {
    items: T[];
    limit: number;
    nextCursor?: string;
    hasMore: boolean;
    loading: boolean;
    loadingMore: boolean;
    error?: unknown;
    total?: number;
    totalMode: DatasetTotalMode;
    operationId?: string;
}
export interface DatasetController<T> {
    state: Signal<DatasetState<T>>;
    items: Signal<T[]>;
    loading: Signal<boolean>;
    loadingMore: Signal<boolean>;
    error: Signal<unknown | null>;
    hasMore: Signal<boolean>;
    nextCursor: Signal<string | undefined>;
    total: Signal<number | undefined>;
    totalMode: Signal<DatasetTotalMode>;
    operationId: Signal<string | undefined>;
    loadInitial(): Promise<void>;
    loadMore(): Promise<void>;
    refresh(): Promise<void>;
    reset(): void;
    setItems(items: T[]): void;
    updateItem(predicate: (item: T) => boolean, updates: Partial<T>): void;
    removeItem(predicate: (item: T) => boolean): void;
    prependItems(items: T[]): void;
    appendItems(items: T[]): void;
}
export interface DatasetControllerConfig<T> {
    limit?: number;
    initialItems?: T[];
    loadFn: (params: DatasetLoadParams) => Observable<DatasetPage<T>> | Promise<DatasetPage<T>>;
}
export interface LegacyCursorDatasetPage<T> {
    rows?: T[];
    items?: T[];
    nextCursor?: string;
    total?: number;
    operationId?: string;
}
export declare function createInitialDatasetState<T>(limit: number, initialItems?: T[]): DatasetState<T>;
export declare function datasetPageFromLegacyCursor<T>(response: LegacyCursorDatasetPage<T>, limit: number): DatasetPage<T>;