import { NextResponse } from "next/server";

import { createTask, listTasks, validateTaskPayload } from "@/lib/tasks";

export async function GET() {
  return NextResponse.json(await listTasks());
}

export async function POST(request: Request) {
  const payload = (await request.json()) as Record<string, unknown>;
  const errors = validateTaskPayload(payload as never, false);
  if (errors.length > 0) {
    return NextResponse.json({ error: "validation_error", details: errors }, { status: 400 });
  }

  const task = await createTask({
    title: String(payload.title),
    description: typeof payload.description === "string" ? payload.description : "",
    assignee: typeof payload.assignee === "string" ? payload.assignee : "",
    priority: payload.priority as never,
    status: (payload.status as never) || "Backlog",
    tags: Array.isArray(payload.tags) ? payload.tags.filter((tag) => typeof tag === "string") : [],
  });

  return NextResponse.json(task, { status: 201 });
}