R524809
135 lines
4.3 KiB
TypeScript
135 lines
4.3 KiB
TypeScript
import type { PaperType } from '../config/worksheets/papers';
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import { apiRequest } from './api-request';
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/** 小程序使用的公开接口字段，不复用旧云集合的 _id 和管理配置。 */
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export interface ApiCategory {
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id: string;
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name: string;
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icon: string;
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parentId: string | null;
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status: 'active';
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}
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export interface ApiWorksheet {
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rendering?: { rendererKey: 'paper-sheet'; paperType: PaperType };
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id: string;
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title: string;
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subtitle: string;
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category: string;
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path: string;
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ageMin: number;
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ageMax: number;
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difficulty: 1 | 2 | 3 | 4;
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previewImg: string | null;
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likes: string;
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downloads: string;
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createdAt: string;
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updatedAt: string;
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contentUpdatedAt: string | null;
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}
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interface WorksheetPage {
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items: ApiWorksheet[];
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total: number;
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page: number;
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pageSize: number;
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hasNext: boolean;
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}
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/** 分类直接由服务端发布状态决定，不用本地目录补齐或恢复下架分类。 */
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export async function listCategories(): Promise<ApiCategory[]> {
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const rows = await apiRequest<ApiCategory[]>('/categories', {
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auth: 'none',
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});
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if (
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!Array.isArray(rows) ||
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rows.some(
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(row) =>
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!row ||
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typeof row.id !== 'string' ||
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!row.id ||
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typeof row.name !== 'string' ||
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typeof row.icon !== 'string' ||
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row.status !== 'active',
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)
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) {
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throw new Error('分类数据异常，请稍后重试');
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}
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return rows;
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}
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/** 展示计数保持十进制字符串，不转换 Number 或重复叠加展示种子。 */
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function validateWorksheet(row: ApiWorksheet): void {
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if (
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!row ||
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!row.id ||
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typeof row.id !== 'string' ||
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typeof row.title !== 'string' ||
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typeof row.subtitle !== 'string' ||
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typeof row.category !== 'string' ||
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typeof row.path !== 'string' ||
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!Number.isInteger(row.ageMin) ||
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!Number.isInteger(row.ageMax) ||
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row.ageMin < 0 ||
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row.ageMax < row.ageMin ||
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![1, 2, 3, 4].includes(row.difficulty) ||
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typeof row.downloads !== 'string' ||
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!/^\d+$/.test(row.downloads) ||
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typeof row.likes !== 'string' ||
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!/^\d+$/.test(row.likes) ||
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(row.previewImg !== null && typeof row.previewImg !== 'string')
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) {
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throw new Error('题型数据异常，请稍后重试');
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}
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}
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/** 取完整分页后才能在客户端计算收藏榜和混合排序；分页变化或缺页时整次重试。 */
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export async function listAllWorksheets(): Promise<ApiWorksheet[]> {
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const pageSize = 100;
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const rows: ApiWorksheet[] = [];
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const ids = new Set<string>();
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let expectedTotal: number | undefined;
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for (let page = 1; ; page++) {
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const result = await apiRequest<WorksheetPage>('/worksheets', {
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auth: 'none',
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data: { page, pageSize },
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});
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if (
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!result ||
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!Array.isArray(result.items) ||
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!Number.isSafeInteger(result.total) ||
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result.total < 0 ||
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result.page !== page ||
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result.pageSize !== pageSize ||
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result.hasNext !== page * pageSize < result.total ||
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result.items.length !==
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Math.max(
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0,
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Math.min(pageSize, result.total - (page - 1) * pageSize),
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) ||
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(expectedTotal !== undefined && result.total !== expectedTotal)
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) {
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throw new Error('题型列表已变化，请重试');
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}
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expectedTotal = result.total;
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for (const row of result.items) {
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validateWorksheet(row);
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if (ids.has(row.id)) throw new Error('题型列表已变化，请重试');
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ids.add(row.id);
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rows.push(row);
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}
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if (!result.hasNext) return rows;
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}
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}
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/** 打开题型前重新检查公开详情，避免已下架内容从旧列表继续进入。 */
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export async function getWorksheet(id: string): Promise<ApiWorksheet> {
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const row = await apiRequest<ApiWorksheet>(
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`/worksheets/${encodeURIComponent(id)}`,
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{ auth: 'none' },
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);
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validateWorksheet(row);
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if (row.id !== id) throw new Error('题型数据异常，请稍后重试');
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return row;
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}
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