import { auth } from "@/app/(auth)/auth";
import { after, NextResponse } from "next/server";
import { canvasTaskRequestSchema } from "@/lib/video-canvas/task-contract";
import {
  createCanvasGroupTasks,
  ownsTaskProject,
} from "@/lib/video-canvas/task-store";
import { runCanvasGenerationQueue } from "@/lib/video-canvas/task-worker";
import { preflightCanvasProductionRequests } from "@/lib/video-canvas/production-services";
export const runtime = "nodejs",
  maxDuration = 900;
export async function POST(request: Request) {
  try {
    const session = await auth();
    if (!session?.user?.id)
      return NextResponse.json({ error: "未登录" }, { status: 401 });
    const text = await request.text();
    if (Buffer.byteLength(text) > 1048576)
      return NextResponse.json({ error: "编组数据过大" }, { status: 413 });
    const parsed = canvasTaskRequestSchema
      .array()
      .min(1)
      .max(40)
      .safeParse(JSON.parse(text));
    if (!parsed.success)
      return NextResponse.json({ error: "编组参数无效" }, { status: 400 });
    const projectId = parsed.data[0].projectId,
      userId = session.user.id;
    if (!(await ownsTaskProject(userId, projectId)))
      return NextResponse.json({ error: "画布不存在" }, { status: 404 });
    const tasks = await createCanvasGroupTasks(userId, parsed.data,
      () => preflightCanvasProductionRequests(parsed.data));
    after(() => runCanvasGenerationQueue(userId, projectId));
    return NextResponse.json({ success: true, tasks }, { status: 202 });
  } catch (e) {
    return NextResponse.json(
      { error: e instanceof Error ? e.message : "编组执行失败", code: (e as any)?.code },
      { status: Number((e as any)?.status) || 400 }
    );
  }
}