import { OnInit, ChangeDetectorRef } from '@angular/core';
import { LetterToBoardService, LetterOnBoard } from '@schoolbelle/api/letter-to-board';
import { GroupService } from '@schoolbelle/api/group';
import { InfiniteListService } from '@schoolbelle/common/infinite-list';
import { Subscription, Observable, Subject } from 'rxjs';
import { BoardService } from '@schoolbelle/api/board';
import { LetterReadService } from '@schoolbelle/api/letter-read';
import { ActivatedRoute } from '@angular/router';
import { LetterService } from '@schoolbelle/api/letter';
export declare type LetterListQuries = {
    query?: string;
    survey?: boolean;
    mine?: boolean;
    from?: number;
    to?: number;
};
export declare const quriesDefault: LetterListQuries;
export declare class LetterListComponent implements OnInit {
    group: GroupService;
    board: BoardService;
    protected letter: LetterService;
    protected ltb: LetterToBoardService;
    protected read: LetterReadService;
    protected route: ActivatedRoute;
    protected cdRef: ChangeDetectorRef;
    /**
     * Should fetch an initial chunk programmatically
     */
    RUN_INITIALLY: boolean;
    /**
     * Constant query params to be applied when fetching
     */
    defaultParams: {
        [key: string]: any;
    };
    /**
     * Filtering elements
     */
    queries: LetterListQuries;
    protected queriesChangeEvent: Subject<{}>;
    protected refreshFixedList: Subject<{}>;
    _fixed: LetterOnBoard[];
    fixed: LetterOnBoard[];
    list: LetterOnBoard[];
    infinite: InfiniteListService;
    boardMap: Map<string, {
        list: LetterOnBoard[];
        fixed: LetterOnBoard[];
        queries: LetterListQuries;
        infinite: InfiniteListService<any>;
    }>;
    board$: Observable<false | import("@schoolbelle/api/board/schoolbelle-api-board").BoardAccessTokenDecoded>;
    protected subscriptions: Subscription;
    constructor(group: GroupService, board: BoardService, letter: LetterService, ltb: LetterToBoardService, read: LetterReadService, route: ActivatedRoute, cdRef: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
    defaultListFilter(item: any): boolean;
    queryListFilter(item: any): boolean;
    /**
     * Update board related properties upon switching boards
     * @param bid
     */
    fill(bid: string): void;
    map(li: any): any;
    filter(li: any): boolean;
    updateGeneralList(list: LetterOnBoard[]): void;
    updateFixedList(list: LetterOnBoard[]): void;
    trackByInternalId(index: any, item: any): any;
    search(params?: {
        query?: string;
        survey?: boolean;
        mine?: boolean;
        from?: number;
        to?: number;
    }): void;
    fetchLatest(): Observable<import("@schoolbelle/common/infinite-list/lib/infinite-list.types").InfiniteListFetchedEvent<any>>;
    removeItem(item: {
        ltg_id: number;
    }): number;
    /**
     * update a matched item first in infinite list and then in component list too.
     * Infinite list may have a "map" function provided.
     * In that case, the matched item in component list must be replaced  with the one from the infinite list.
     *
     * @param ltg_id
     * @param data
     * @returns
     */
    updateItem(ltg_id: number, data: {
        [key: string]: any;
    }): number;
    markAsRead(item: LetterOnBoard): Observable<any>;
    loadGeneralList(): Observable<{
        infinite: InfiniteListService<any>;
        list: any[];
    }>;
    loadFixedList(): Observable<any[] | undefined>;
    refreshItem(item: {
        ltg_id: number;
    }): Observable<LetterOnBoard>;
    isInFixedList(item: any): boolean;
    fixAtTopFor(item: LetterOnBoard, time?: number): Observable<any>;
    scrollHasHitBottom(): void;
    scrollHasHitTop(): void;
}