import log4js from "logger";

const logger = log4js.getLogger("ERROR");

interface ClientErrorReport {
    message: string;
    stack?: string;
    url?: string;
    line?: number;
    column?: number;
    userAgent?: string;
    tags?: string[];
}

export default defineEventHandler(async (event) => {
    const body = await readBody<ClientErrorReport>(event).catch(() => null);
    if (!body || typeof body.message !== "string") {
        return R.success({ ok: false });
    }

    const requestId = event.context.requestId ?? "(no-request-id)";
    const ip = getRequestIP(event, { xForwardedFor: true }) ?? "unknown";
    const tags = Array.isArray(body.tags) ? body.tags.join(",") : "client";

    logger.error(
        `[${requestId}]`,
        `[CLIENT-ERROR]`,
        `[${tags}]`,
        `url=${body.url ?? "-"}`,
        `ip=${ip}`,
        `ua=${body.userAgent ?? "-"}`,
        "\n",
        body.message,
        body.stack ?? "",
    );

    return R.success({ ok: true });
});