import { toOid } from "../helpers/inventoryHelpers";
import { Leaderboard } from "../models/leaderboardModel";
import { ILeaderboardEntryClient } from "../types/leaderboardTypes";

export const submitLeaderboardScore = async (
    leaderboard: string,
    displayName: string,
    score: number
): Promise<void> => {
    const schedule = leaderboard.split(".")[0] as "daily" | "weekly";
    let expiry: Date;
    if (schedule == "daily") {
        expiry = new Date(Math.trunc(Date.now() / 86400000) * 86400000 + 86400000);
    } else {
        const EPOCH = 1734307200 * 1000; // Monday
        const day = Math.trunc((Date.now() - EPOCH) / 86400000);
        const week = Math.trunc(day / 7);
        const weekStart = EPOCH + week * 604800000;
        const weekEnd = weekStart + 604800000;
        expiry = new Date(weekEnd);
    }
    await Leaderboard.findOneAndUpdate(
        { leaderboard, displayName },
        { $max: { score }, $set: { expiry } },
        { upsert: true }
    );
};

export const getLeaderboard = async (
    leaderboard: string,
    before: number,
    after: number
): Promise<ILeaderboardEntryClient[]> => {
    const entries = await Leaderboard.find({ leaderboard })
        .sort({ score: -1 })
        .skip(before)
        .limit(after - before);
    const res: ILeaderboardEntryClient[] = [];
    let r = before;
    for (const entry of entries) {
        res.push({
            _id: toOid(entry._id),
            s: entry.score,
            r: ++r,
            n: entry.displayName
        });
    }
    return res;
};