Checkpoint: Initial stable CheckFlow base before i18n and demo mode

src/app/api/tasks/route.ts

@@ -0,0 +1,70 @@
+import { NextRequest, NextResponse } from "next/server";
+import { getServerSession } from "next-auth";
+import { authOptions } from "@/lib/auth";
+import { prisma } from "@/lib/prisma";
+
+export async function GET(req: NextRequest) {
+  try {
+    const session = await getServerSession(authOptions);
+    if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+    const { searchParams } = new URL(req.url);
+    const listId = searchParams.get("listId");
+    const showCompleted = searchParams.get("showCompleted") === "true";
+
+    const where: Record<string, unknown> = {
+      userId: session.user.id,
+      parentId: null,
+      ...(listId ? { listId } : {}),
+      ...(showCompleted ? {} : { completed: false }),
+    };
+
+    const tasks = await prisma.task.findMany({
+      where,
+      orderBy: [{ sortOrder: "asc" }, { createdAt: "asc" }],
+      include: {
+        children: { orderBy: [{ sortOrder: "asc" }] },
+        tags: { include: { tag: true } },
+      },
+    });
+    return NextResponse.json(tasks);
+  } catch (err) {
+    console.error("[tasks:GET]", err);
+    return NextResponse.json({ error: "Failed to fetch tasks" }, { status: 500 });
+  }
+}
+
+export async function POST(req: NextRequest) {
+  try {
+    const session = await getServerSession(authOptions);
+    if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+    const body = await req.json().catch(() => null);
+    if (!body) return NextResponse.json({ error: "Invalid body" }, { status: 400 });
+
+    const { title, listId, parentId, dueDate, priority, note } = body;
+    if (!title || !listId) return NextResponse.json({ error: "title and listId required" }, { status: 400 });
+
+    const list = await prisma.list.findFirst({ where: { id: listId, userId: session.user.id } });
+    if (!list) return NextResponse.json({ error: "List not found" }, { status: 404 });
+
+    const count = await prisma.task.count({ where: { listId, parentId: parentId || null } });
+    const task = await prisma.task.create({
+      data: {
+        userId: session.user.id,
+        listId,
+        parentId: parentId || null,
+        title: title.trim(),
+        note: note?.trim() || null,
+        dueDate: dueDate ? new Date(dueDate) : null,
+        priority: Number(priority) || 0,
+        sortOrder: count,
+      },
+      include: { children: true, tags: { include: { tag: true } } },
+    });
+    return NextResponse.json(task, { status: 201 });
+  } catch (err) {
+    console.error("[tasks:POST]", err);
+    return NextResponse.json({ error: "Failed to create task" }, { status: 500 });
+  }
+}