import { NextResponse } from "next/server";
import { auth } from "@/app/(auth)/auth";
import {
  deleteFlowBoardDraftById,
  getFlowBoardDraftById,
  updateFlowBoardDraftById,
} from "@/lib/db/queries";
import {
  mapFlowBoardDraft,
  normalizeFlowBoardSnapshot,
  normalizeFlowBoardTitle,
} from "../../_utils";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";
export const revalidate = 0;

type RouteContext = {
  params: Promise<{ id: string }>;
};

export async function GET(_request: Request, { params }: RouteContext) {
  const session = await auth();
  if (!session?.user?.id) {
    return NextResponse.json(
      { success: false, error: "未登录" },
      { status: 401 }
    );
  }

  const { id } = await params;
  const draft = await getFlowBoardDraftById({
    userId: session.user.id,
    draftId: id,
  });

  if (!draft) {
    return NextResponse.json(
      { success: false, error: "流程白板文件不存在" },
      { status: 404 }
    );
  }

  return NextResponse.json({
    success: true,
    data: mapFlowBoardDraft(draft),
  });
}

export async function PUT(request: Request, { params }: RouteContext) {
  const session = await auth();
  if (!session?.user?.id) {
    return NextResponse.json(
      { success: false, error: "未登录" },
      { status: 401 }
    );
  }

  const { id } = await params;
  const body = (await request.json().catch(() => ({}))) as {
    title?: unknown;
    snapshot?: unknown;
  };
  const draft = await updateFlowBoardDraftById({
    userId: session.user.id,
    draftId: id,
    title:
      body.title !== undefined
        ? normalizeFlowBoardTitle(body.title)
        : undefined,
    snapshot:
      body.snapshot !== undefined
        ? normalizeFlowBoardSnapshot(body.snapshot)
        : undefined,
  });

  if (!draft) {
    return NextResponse.json(
      { success: false, error: "流程白板文件不存在" },
      { status: 404 }
    );
  }

  return NextResponse.json({
    success: true,
    data: mapFlowBoardDraft(draft),
  });
}

export async function DELETE(_request: Request, { params }: RouteContext) {
  const session = await auth();
  if (!session?.user?.id) {
    return NextResponse.json(
      { success: false, error: "未登录" },
      { status: 401 }
    );
  }

  const { id } = await params;
  const draft = await deleteFlowBoardDraftById({
    userId: session.user.id,
    draftId: id,
  });

  if (!draft) {
    return NextResponse.json(
      { success: false, error: "流程白板文件不存在" },
      { status: 404 }
    );
  }

  return NextResponse.json({
    success: true,
    data: mapFlowBoardDraft(draft),
  });
}