import { NextRequest, NextResponse } from "next/server";
import { getApiUrlFromRequest, getPaymentConfig } from "@/config/services.config";

function resolvePayApiUrl(request: NextRequest): string {
  const payConfig = getPaymentConfig();
  const hostHeader = request.headers.get("host") || request.headers.get("x-forwarded-host");
  return ((hostHeader ? getApiUrlFromRequest(hostHeader) : null) || payConfig.apiUrl).replace(/\/$/, "");
}

export async function GET(request: NextRequest) {
  const { searchParams } = new URL(request.url);
  const user_id = searchParams.get("user_id")?.trim() || "";
  const page = Math.max(1, Number.parseInt(searchParams.get("page") || "1", 10));
  const per_page = Math.min(60, Math.max(1, Number.parseInt(searchParams.get("per_page") || "24", 10)));

  if (!user_id) {
    return NextResponse.json({ ok: false, error: "缺少 user_id" }, { status: 401 });
  }

  try {
    const apiUrl = resolvePayApiUrl(request);
    const params = new URLSearchParams({
      user_id,
      page: String(page),
      per_page: String(per_page),
    });
    const response = await fetch(`${apiUrl}/community/attachments?${params.toString()}`, { cache: "no-store" });
    const data = await response.json().catch(() => ({}));

    if (!response.ok) {
      return NextResponse.json(
        { ok: false, error: data?.detail || data?.error || "请求失败" },
        { status: response.status }
      );
    }

    return NextResponse.json(data);
  } catch (error) {
    console.error("[community/attachments] GET error:", error);
    return NextResponse.json({ ok: false, error: "服务异常" }, { status: 500 });
  }
}