import { getSessionAccount } from "@/lib/auth/require-session";
import { canReadPage } from "@/lib/auth/permissions";
import { parseMatchmakerLogParam } from "@/lib/matchmaker-log-source";
import { readMatchmakerLogFile } from "@/lib/matchmaker-logs-server";

const NO_STORE = { "Cache-Control": "no-store, max-age=0" };

export async function GET(request: Request) {
  const account = await getSessionAccount();
  if (!account || !canReadPage(account, "matchmaker")) {
    return Response.json(
      { error: "Unauthorized" },
      { status: 401, headers: NO_STORE },
    );
  }

  const { searchParams } = new URL(request.url);
  const source = parseMatchmakerLogParam(searchParams.get("mklog"));

  const result = await readMatchmakerLogFile(source);
  if (!result.ok) {
    return Response.json(
      { error: result.message },
      { status: result.status, headers: NO_STORE },
    );
  }

  return Response.json(
    { content: result.content },
    { headers: NO_STORE },
  );
}