src/systems/booster.js

const { logRoleChange } = require('./logger');

/**
 * Detect server boost changes via guildMemberUpdate.
 * If a member starts boosting → add Booster role.
 * If a member stops boosting → remove Booster role.
 */
async function handleBoostChange(oldMember, newMember, client) {
    const wasBoosting = oldMember.premiumSince !== null;
    const isBoosting = newMember.premiumSince !== null;

    if (wasBoosting === isBoosting) return; // No change

    const boosterRole = newMember.guild.roles.cache.find(r => r.name === '@@ Booster');
    if (!boosterRole) return;

    if (!wasBoosting && isBoosting) {
        // Started boosting
        await newMember.roles.add(boosterRole).catch(() => { });
        await logRoleChange(client, {
            user: newMember.user,
            role: 'Booster',
            action: 'added',
        });
    } else if (wasBoosting && !isBoosting) {
        // Stopped boosting
        await newMember.roles.remove(boosterRole).catch(() => { });
        await logRoleChange(client, {
            user: newMember.user,
            role: 'Booster',
            action: 'removed',
        });
    }
}

module.exports = { handleBoostChange };