import { Model, RelationMappings } from 'objection';
import { ContentLeaf } from './content-leaf';
import { AbstractModel } from './abstract-model';
import { Locale } from './locale';
import { TagSystem } from './tag-system';
import { BookType, IAttributes } from '@heduapp/book-objects/business-object';
export declare enum ContentGroupTypes {
    Book = "BOOK",
    Chapter = "CHAPTER",
    WorksheetBook = "WORKSHEET_BOOK",
    WorksheetChapter = "WORKSHEET_CHAPTER",
    PreparationsBook = "PREPARATIONS_BOOK",
    PreparationsChapter = "PREPARATIONS_CHAPTER",
    TestsBook = "TESTS_BOOK",
    TestsChapter = "TESTS_CHAPTER",
    MixtureBook = "MIXTURE_BOOK",
    MixtureChapter = "MIXTURE_CHAPTER"
}
export declare class ContentGroup extends AbstractModel {
    type: ContentGroupTypes;
    localeId: number;
    title: string;
    readonly uuid: string;
    readonly name: string | null;
    attributes: IAttributes;
    readonly id: number;
    parentId?: number;
    sortOrder?: number;
    readonly created: Date;
    readonly modified: Date;
    readonly deleted?: Date;
    parent?: ContentGroup;
    children: ContentGroup[];
    contentLeafs: ContentLeaf[];
    systemTags: TagSystem[];
    locale?: Locale;
    constructor(type: ContentGroupTypes, localeId: number, title?: string, uuid?: string, name?: string | null, attributes?: IAttributes);
    static tableName: string;
    static jsonSchema: {
        type: string;
        required: string[];
        properties: {
            id: {
                type: string;
            };
            uuid: {
                type: string;
                minLength: number;
                maxLength: number;
            };
            title: {
                type: string;
            };
            name: {
                type: string[];
            };
            parent: {
                type: string[];
            };
            sortOrder: {
                type: string;
                default: number;
            };
            type: {
                type: string;
                enum: ContentGroupTypes[];
            };
            localeId: {
                type: string;
            };
            attributes: {
                type: string;
            };
        };
    };
    static relationMappings: RelationMappings;
    $beforeInsert(): void;
    remove(): import("objection").QueryBuilder<this["systemTags"] & Model, this["systemTags"] & Model, this["systemTags"] & Model>;
    get bookType(): BookType;
    static isBook(type: ContentGroupTypes): boolean;
    get isBook(): boolean;
    static isChapter(type: ContentGroupTypes): boolean;
    get isChapter(): boolean;
}