import { NextResponse } from "next/server";
import { requireSessionUser } from "@/lib/server/session";
import { getUserSettings, setUserSettings } from "@/lib/server/user-settings";
import { getRequestMeta } from "@/lib/server/request";
import { toErrorResponse } from "@/lib/server/errors";

export async function GET() {
    const { requestId } = await getRequestMeta();
    try {
        const user = await requireSessionUser();
        const settings = await getUserSettings(user.id);
        return NextResponse.json({ requestId, request_id: requestId, settings });
    } catch (e) {
        const { status, body } = toErrorResponse(e, "GET /api/user/settings", requestId);
        return NextResponse.json(body, { status });
    }
}

export async function POST(req: Request) {
    const { requestId } = await getRequestMeta();
    try {
        const user = await requireSessionUser();
        const body = await req.json().catch(() => null);
        const entryPanelPageSize = Number(body?.entryPanelPageSize);
        if (!Number.isFinite(entryPanelPageSize) || entryPanelPageSize <= 0)
            return NextResponse.json({ requestId, request_id: requestId, error: { code: "INVALID_PAGE_SIZE", message: "entryPanelPageSize must be a positive number" } }, { status: 400 });
        const settings = await setUserSettings({ userId: user.id, entryPanelPageSize });
        return NextResponse.json({ requestId, request_id: requestId, settings });
    } catch (e) {
        const { status, body } = toErrorResponse(e, "POST /api/user/settings", requestId);
        return NextResponse.json(body, { status });
    }
}