import { OnInit, ChangeDetectorRef, EventEmitter } from '@angular/core';
import { LetterToBoardService, LetterOnBoard } from '@schoolbelle/api/letter-to-board';
import { LetterService } from '@schoolbelle/api/letter';
import { GroupService } from '@schoolbelle/api/group';
import { BoardService } from '@schoolbelle/api/board';
import { Observable, Subscription } from 'rxjs';
import { AuthService } from '@schoolbelle/api/auth';
import { InfiniteListService } from '@schoolbelle/common/infinite-list';
export declare class LetterItemComponent implements OnInit {
    protected auth: AuthService;
    group: GroupService;
    board: BoardService;
    protected ltb: LetterToBoardService;
    protected letter: LetterService;
    protected cdRef: ChangeDetectorRef;
    protected locale_id: string;
    infinite: InfiniteListService;
    item: LetterOnBoard;
    query: string;
    isInView: boolean;
    fixedAtTop: boolean;
    fixAtTop: EventEmitter<number>;
    title: string | {
        [lang: string]: string;
    };
    content: string | {
        [lang: string]: string;
    };
    usedLangs: string[];
    currentLang: string;
    subscription: Subscription;
    readonly reserved: boolean;
    permission: string;
    constructor(auth: AuthService, group: GroupService, board: BoardService, ltb: LetterToBoardService, letter: LetterService, cdRef: ChangeDetectorRef, locale_id: string);
    handleLanguages(): void;
    ngOnInit(): void;
    ngOnDestroy(): void;
    refresh(): Observable<any>;
    update(data: {
        [key: string]: any;
    }): void;
    set(item: LetterOnBoard): void;
    delete(item: LetterOnBoard): Observable<any>;
    protected deleteFromAllLetterTargets(item: LetterOnBoard): Observable<Object>;
    protected deleteFromCurrentLetterTarget(item: LetterOnBoard): Observable<any>;
    canFixAtTop(): boolean;
    flagToggling: boolean;
    viewAnyways: boolean;
    flag(comment?: string): Observable<any>;
    unflag(): Observable<any>;
    clearFlags(): Observable<any>;
    report(comment?: string): Observable<any>;
    unreport(): Observable<any>;
    readonly blinded: boolean;
}