import { OnDestroy, OnInit, TemplateRef } from '@angular/core';
import { CoreFormControlBaseComponent } from '../core-form-control-base/core-form-control-base.component';
import { Subject, Subscription } from 'rxjs';
import { MultiLanguageService } from '../../services/multi-language.service';
import * as i0 from "@angular/core";
export interface ICoreTreeReferenceNode {
    readonly id: string;
    readonly label: string;
    readonly parentId?: string | null;
    readonly parentLabel?: string | null;
    readonly level?: number;
    readonly children?: ReadonlyArray<ICoreTreeReferenceNode>;
    readonly meta?: unknown;
    expanded?: boolean;
}
export interface ICoreTreeReferenceMetaSeat {
    readonly id: string;
    readonly code: string;
}
export declare class CoreTreeReferenceComponent extends CoreFormControlBaseComponent implements OnInit, OnDestroy {
    $data: import("@angular/core").InputSignal<readonly ICoreTreeReferenceNode[]>;
    $itemTemplateRef: import("@angular/core").InputSignal<TemplateRef<any> | undefined>;
    $loading: import("@angular/core").InputSignal<boolean>;
    $externalExpandedIds: import("@angular/core").InputSignal<Set<string> | null>;
    $autoLevel0ExpandOnInit: import("@angular/core").InputSignal<boolean>;
    expandedIdsChange: import("@angular/core").OutputEmitterRef<Set<string>>;
    itemSelected: import("@angular/core").OutputEmitterRef<ICoreTreeReferenceNode>;
    private _didAutoExpandLevel0;
    /**
     * $rootType
     * ----------------------------------------
     * Quyết định node gốc của cây là O hay S, từ đó quyết định cách hiển thị và cách thức chọn node trong component này.
     */
    $rootType: import("@angular/core").InputSignal<"O" | "S">;
    /**
     * $selectionType
     * ----------------------------------------
     * Quyết định loại entity nào được phép chọn trong component này.
     */
    $selectionType: import("@angular/core").InputSignal<"O" | "S" | "NONE">;
    $showSeatsInMeta: import("@angular/core").InputSignal<boolean>;
    /**
     * $objectNarrationName
     * ----------------------------------------
     * Tên gọi của đối tượng đang được chọn trong component này, dùng để hiển thị trong các thông báo và tooltip.
     */
    $objectNarrationName: import("@angular/core").Signal<"đơn vị" | "vị trí" | "node">;
    /**
     * $allowsSelectRootLevel
     * ----------------------------------------
     * Quyết định có cho phép chọn node ở cấp độ gốc hay không.
     */
    $allowsSelectRootLevel: import("@angular/core").InputSignal<boolean>;
    selected: import("@angular/core").OutputEmitterRef<ICoreTreeReferenceNode | ICoreTreeReferenceMetaSeat>;
    illegalSelectionStream$: Subject<void>;
    subscriptions: Subscription[];
    $lastSelectedValue: import("@angular/core").WritableSignal<any>;
    $searchText: import("@angular/core").WritableSignal<string | null>;
    mls: MultiLanguageService;
    $lang: import("@angular/core").Signal<string | undefined>;
    private $expandedIds;
    $filterResult: import("@angular/core").Signal<{
        tree: ReadonlyArray<ICoreTreeReferenceNode>;
        expandedIds: Set<string>;
    }>;
    $dataAfterSearch: import("@angular/core").Signal<readonly ICoreTreeReferenceNode[]>;
    $searchPlacehoder: import("@angular/core").Signal<"Tìm kiếm..." | "Search...">;
    constructor();
    private filterTree;
    private filterTreeWithExpansion;
    ngOnInit(): void;
    onSelect(e: any, node: ICoreTreeReferenceNode, level: number): void;
    onMetaItemSelect(e: any, metaItem: any): void;
    onToggle(node: ICoreTreeReferenceNode): void;
    onSearchTextChange(e: any): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CoreTreeReferenceComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<CoreTreeReferenceComponent, "core-tree-reference", never, { "$data": { "alias": "$data"; "required": true; "isSignal": true; }; "$itemTemplateRef": { "alias": "$itemTemplateRef"; "required": false; "isSignal": true; }; "$loading": { "alias": "$loading"; "required": false; "isSignal": true; }; "$externalExpandedIds": { "alias": "$externalExpandedIds"; "required": false; "isSignal": true; }; "$autoLevel0ExpandOnInit": { "alias": "$autoLevel0ExpandOnInit"; "required": false; "isSignal": true; }; "$rootType": { "alias": "$rootType"; "required": false; "isSignal": true; }; "$selectionType": { "alias": "$selectionType"; "required": false; "isSignal": true; }; "$showSeatsInMeta": { "alias": "$showSeatsInMeta"; "required": false; "isSignal": true; }; "$allowsSelectRootLevel": { "alias": "$allowsSelectRootLevel"; "required": false; "isSignal": true; }; }, { "expandedIdsChange": "expandedIdsChange"; "itemSelected": "itemSelected"; "selected": "selected"; }, never, never, true, never>;
}