import { NextResponse } from "next/server";
import { auth } from "@/app/(auth)/auth";
import {
  createWorkspaceDocument,
  createWorkspaceSummary,
  normalizeWorkspacePayload,
  type UpdateAiCadWorkspaceRequest,
} from "@/app/api/ai-cad/workspace-utils";
import {
  deleteAiCadWorkspaceById,
  getAiCadWorkspaceById,
  updateAiCadWorkspace,
} from "@/lib/db/queries";

export const runtime = "nodejs";

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

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

  const { workspaceId } = await context.params;
  const workspace = await getAiCadWorkspaceById({
    userId: session.user.id,
    workspaceId,
  });

  if (!workspace) {
    return NextResponse.json(
      { success: false, error: "AI-CAD 工作台不存在" },
      { status: 404 }
    );
  }

  return NextResponse.json({
    success: true,
    data: createWorkspaceDocument(workspace),
  });
}

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

  const { workspaceId } = await context.params;
  const body = (await request.json()) as UpdateAiCadWorkspaceRequest;
  const savedWorkspace = await updateAiCadWorkspace({
    workspaceId,
    userId: session.user.id,
    ...normalizeWorkspacePayload(body),
  });

  if (!savedWorkspace) {
    return NextResponse.json(
      { success: false, error: "AI-CAD 工作台不存在或保存失败" },
      { status: 404 }
    );
  }

  return NextResponse.json({
    success: true,
    data: {
      id: savedWorkspace.id,
      name: savedWorkspace.name,
      updatedAt: savedWorkspace.updatedAt?.toISOString() || null,
      summary: createWorkspaceSummary(savedWorkspace),
    },
  });
}

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

  const { workspaceId } = await context.params;
  const deletedWorkspace = await deleteAiCadWorkspaceById({
    workspaceId,
    userId: session.user.id,
  });

  if (!deletedWorkspace) {
    return NextResponse.json(
      { success: false, error: "AI-CAD 工作台不存在" },
      { status: 404 }
    );
  }

  return NextResponse.json({
    success: true,
    data: {
      id: deletedWorkspace.id,
    },
  });
}