Giveaway-app/src/components/GiveawayCardServer.tsx

"use server"
import { db } from "@/lib/db";

export async function handleEnterGiveawayClick(giveawayId: string, entryValue: number, activeUserCoins: number, userId: string) {
    
    await db.entry.create({
        data: {
            userId: userId, 
            giveawayId: giveawayId, 
            pastValue: activeUserCoins,
        },
    });

    await db.user.update({
        where: { id: userId },
        data: {
            coins: { decrement: entryValue },
        },
    });
}   

export async function entrycount(userId: string, giveawayId: string) {
    const entryCount = db.entry.count({
        where: {
            userId: userId,
            giveawayId: giveawayId,
        },
    });
    return entryCount;
}

export async function usercoins(userId: string, giveawayId: string) {
    const user = await db.user.findUnique({
        where: { id: userId },
        select: { coins: true },
    }); 

    const entry = await db.entry.findFirst({
        where: {
            userId: userId,
            giveawayId: giveawayId,
        },
        orderBy: {
            pastValue: 'desc',
        },
        select: { pastValue: true },
    });

    if (!user) {
        throw new Error("User not found");
    }

    if (entry) {
        if ((entry?.pastValue ?? 0) > user.coins) {
            return entry.pastValue;
        }
    }

    return user.coins;
}