VRCX/src/shared/utils/throttle.js

export function createRateLimiter({ limitPerInterval, intervalMs }) {
    const stamps = [];

    async function throttle() {
        const now = Date.now();
        while (stamps.length && now - stamps[0] > intervalMs) {
            stamps.shift();
        }
        if (stamps.length >= limitPerInterval) {
            const wait = intervalMs - (now - stamps[0]);
            await new Promise((resolve) => setTimeout(resolve, wait));
        }
        stamps.push(Date.now());
    }

    return {
        async schedule(fn) {
            await throttle();
            return fn();
        },
        async wait() {
            await throttle();
        },
        clear() {
            stamps.length = 0;
        }
    };
}