lavaclient/dist/cluster/balancer.js

A simple, easy-to-use, and flexible lavalink client for node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.nextOrThrow = exports.DefaultLoadBalancer = void 0;
const DefaultLoadBalancer = (cluster, penaltyProviders = []) => {
    const available = () => [...cluster.nodes.values()].filter((it) => it.ws.active);
    const penalties = (node) => node.penalties.calculate() + penaltyProviders.reduce((acc, it) => acc + it.calculate(node), 0);
    return {
        next: () => {
            const nodes = available();
            if (nodes.length <= 1) {
                return nodes[0] ?? null;
            }
            return nodes.sort((a, b) => penalties(a) - penalties(b))[0] ?? null;
        },
    };
};
exports.DefaultLoadBalancer = DefaultLoadBalancer;
const nextOrThrow = (lb) => {
    const node = lb.next();
    if (!node)
        throw new Error("No nodes available");
    return node;
};
exports.nextOrThrow = nextOrThrow;
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