import { getCookie, setCookie } from "@/lib/cookies";

const COOKIE_NAME = "recent-lists";
const MAX_RECENT_LISTS = 32;

export function getRecentLists(): string[] {
    const rawData = getCookie(COOKIE_NAME, "");
    if (!rawData) {
        return [];
    }
    return rawData.split(",");
}

export function saveRecentList(list: string): void {
    const recentLists = [list]
        .concat(getRecentLists())
        .filter((v, i, a) => a.indexOf(v) === i)
        .slice(0, MAX_RECENT_LISTS);
    setCookie(COOKIE_NAME, recentLists.join(","));
}