102 lines
2.7 KiB
TypeScript
102 lines
2.7 KiB
TypeScript
import { NextResponse } from "next/server";
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import {
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ok,
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noContent,
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withErrorHandling,
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parseJsonBody,
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ApiError,
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} from "@/lib/api/response";
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import { updatePostSchema } from "@/lib/validation/post";
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import {
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getPostBySlug,
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getPostBySlugIncludingDrafts,
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updatePost,
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deletePost,
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assertSlugAvailable,
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} from "@/lib/posts/repository";
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/**
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* /api/posts/[slug] —— 单篇文章的读取、更新与删除
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*
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* 注意：GET 默认只返回已发布文章；传入 ?includeDrafts=true 可读到草稿，
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* 供后续接入后台管理时使用（v0.1 尚无鉴权，接入后台前应加上权限校验）。
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*/
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type RouteContext = { params: Promise<{ slug: string }> };
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/** GET /api/posts/[slug] —— 读取单篇文章（含正文） */
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export const GET = withErrorHandling(
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async (request: Request, context: RouteContext) => {
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const { slug } = await context.params;
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const { searchParams } = new URL(request.url);
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const includeDrafts = searchParams.get("includeDrafts") === "true";
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const post = includeDrafts
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? await getPostBySlugIncludingDrafts(slug)
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: await getPostBySlug(slug);
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if (!post) {
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throw ApiError.notFound(`文章 "${slug}" 不存在或尚未发布`);
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}
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return ok(post);
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},
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);
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/**
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* PATCH /api/posts/[slug] —— 更新文章（部分更新）
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*
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* 支持更新 slug 本身；此时会校验新 slug 未被占用。
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*/
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export const PATCH = withErrorHandling(
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async (request: Request, context: RouteContext) => {
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const { slug } = await context.params;
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const body = await parseJsonBody(request);
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const input = updatePostSchema.parse(body);
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// 目标文章必须存在（含草稿，便于把草稿改为已发布）
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const existing = await getPostBySlugIncludingDrafts(slug);
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if (!existing) {
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throw ApiError.notFound(`文章 "${slug}" 不存在`);
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}
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// 改 slug 时需要判重（排除自身）
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if (input.slug && input.slug !== slug) {
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await assertSlugAvailable(input.slug, slug);
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}
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const updated = await updatePost(slug, input);
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if (!updated) {
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throw ApiError.notFound(`文章 "${slug}" 不存在`);
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}
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return ok(updated);
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},
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);
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/** PUT 与 PATCH 同义，便于不支持 PATCH 的客户端使用 */
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export const PUT = PATCH;
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/** DELETE /api/posts/[slug] —— 删除文章 */
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export const DELETE = withErrorHandling(
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async (_request: Request, context: RouteContext) => {
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const { slug } = await context.params;
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const removed = await deletePost(slug);
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if (!removed) {
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throw ApiError.notFound(`文章 "${slug}" 不存在`);
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}
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// 204 No Content：删除成功且无响应体
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return noContent();
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},
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);
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/** 列出该资源支持的方法 */
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export function OPTIONS() {
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return new NextResponse(null, {
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status: 204,
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headers: { Allow: "GET, PATCH, PUT, DELETE, OPTIONS" },
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});
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}
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