import { CategoryId } from './category';
/**
 * 题型与模板引擎相关模型：对齐技术架构 §5.4 与云开发 worksheets 集合 §3.3
 */

/** 难度等级文案键（用于前端展示与映射） */
export type Difficulty = 'beginner' | 'basic' | 'intermediate' | 'advanced';

/** 与架构文档 WorksheetConfig 一致，供云端下发 / 本地内置 */
export interface WorksheetConfig {
    id: string;
    title: string;
    subtitle: string;
    category: CategoryId;
    subcategory?: string;
    ageMin: number;
    ageMax: number;
    difficulty: 1 | 2 | 3 | 4;
    previewImg: string;
    tags: string[];
    isNew: boolean;
    isHot: boolean;
    sortOrder?: number;
    status: 'active' | 'draft' | 'hidden';
    downloads: number;
    likes: number;
}

/** 云集合 `worksheets` 文档（§3.3，含数据库字段） */
export interface WorksheetRecord extends WorksheetConfig {
    _id: string;
    createdAt: Date;
    updatedAt: Date;
    contentUpdatedAt?: Date;
}