Add canvas workflow and harden data import

src/app/api/canvas/projects/[id]/route.ts

@@ -0,0 +1,60 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { deleteCanvasProject, getCanvasProject, updateCanvasProject } from '@/lib/canvas-store';
+import { getAuthenticatedUserId } from '@/lib/session-auth';
+import { normalizeCanvasState } from '@/lib/canvas-store';
+
+type RouteContext = {
+  params: Promise<{ id: string }>;
+};
+
+export async function GET(request: NextRequest, context: RouteContext) {
+  try {
+    const userId = await getAuthenticatedUserId(request);
+    if (!userId) return NextResponse.json({ error: '请先登录' }, { status: 401 });
+
+    const { id } = await context.params;
+    const project = await getCanvasProject(userId, id);
+    if (!project) return NextResponse.json({ error: '画布不存在' }, { status: 404 });
+
+    return NextResponse.json({ project });
+  } catch (error) {
+    console.error('[canvas/projects/:id] GET error:', error);
+    return NextResponse.json({ error: '读取画布项目失败' }, { status: 500 });
+  }
+}
+
+export async function PUT(request: NextRequest, context: RouteContext) {
+  try {
+    const userId = await getAuthenticatedUserId(request);
+    if (!userId) return NextResponse.json({ error: '请先登录' }, { status: 401 });
+
+    const { id } = await context.params;
+    const body = await request.json().catch(() => ({}));
+    const project = await updateCanvasProject(userId, id, {
+      title: typeof body.title === 'string' ? body.title : undefined,
+      state: body.state ? normalizeCanvasState(body.state) : undefined,
+    });
+
+    if (!project) return NextResponse.json({ error: '画布不存在' }, { status: 404 });
+    return NextResponse.json({ project });
+  } catch (error) {
+    console.error('[canvas/projects/:id] PUT error:', error);
+    return NextResponse.json({ error: '保存画布项目失败' }, { status: 500 });
+  }
+}
+
+export async function DELETE(request: NextRequest, context: RouteContext) {
+  try {
+    const userId = await getAuthenticatedUserId(request);
+    if (!userId) return NextResponse.json({ error: '请先登录' }, { status: 401 });
+
+    const { id } = await context.params;
+    const deleted = await deleteCanvasProject(userId, id);
+    if (!deleted) return NextResponse.json({ error: '画布不存在' }, { status: 404 });
+
+    return NextResponse.json({ ok: true });
+  } catch (error) {
+    console.error('[canvas/projects/:id] DELETE error:', error);
+    return NextResponse.json({ error: '删除画布项目失败' }, { status: 500 });
+  }
+}

src/app/api/canvas/projects/route.ts

@@ -0,0 +1,31 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { createCanvasProject, listCanvasProjects } from '@/lib/canvas-store';
+import { getAuthenticatedUserId } from '@/lib/session-auth';
+
+export async function GET(request: NextRequest) {
+  try {
+    const userId = await getAuthenticatedUserId(request);
+    if (!userId) return NextResponse.json({ error: '请先登录' }, { status: 401 });
+
+    const projects = await listCanvasProjects(userId);
+    return NextResponse.json({ projects });
+  } catch (error) {
+    console.error('[canvas/projects] GET error:', error);
+    return NextResponse.json({ error: '读取画布项目失败' }, { status: 500 });
+  }
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const userId = await getAuthenticatedUserId(request);
+    if (!userId) return NextResponse.json({ error: '请先登录' }, { status: 401 });
+
+    const body = await request.json().catch(() => ({}));
+    const title = typeof body.title === 'string' ? body.title : '未命名画布';
+    const project = await createCanvasProject(userId, title);
+    return NextResponse.json({ project }, { status: 201 });
+  } catch (error) {
+    console.error('[canvas/projects] POST error:', error);
+    return NextResponse.json({ error: '创建画布项目失败' }, { status: 500 });
+  }
+}