@tanstack/cli/dist/partner-placement.js

TanStack CLI

import { randomUUID } from 'node:crypto';
const partnerTierOrder = {
    gold: 0,
    silver: 1,
    bronze: 2,
};
const cliSessionSeed = randomUUID();
function hashString(value) {
    let hash = 2166136261;
    for (let index = 0; index < value.length; index++) {
        hash ^= value.charCodeAt(index);
        hash = Math.imul(hash, 16777619);
    }
    return hash >>> 0;
}
function compareIdentity(left, right) {
    const nameComparison = left.name.localeCompare(right.name);
    return nameComparison || left.id.localeCompare(right.id);
}
function compareSeededPartnerOrder(left, right, seed) {
    const leftWeight = left.partner.placementWeight ?? 1;
    const rightWeight = right.partner.placementWeight ?? 1;
    const leftRandom = (hashString(`${seed}:${left.partner.id}`) + 1) / 4294967297;
    const rightRandom = (hashString(`${seed}:${right.partner.id}`) + 1) / 4294967297;
    const seededComparison = -Math.log(leftRandom) / leftWeight + Math.log(rightRandom) / rightWeight;
    return seededComparison || compareIdentity(left, right);
}
export function orderAddOnsForPartnerPlacement(addOns, surface, sessionSeed = cliSessionSeed) {
    const rotationSeed = `${surface}:${sessionSeed}`;
    const partners = addOns
        .filter((addOn) => addOn.partner)
        .sort((left, right) => {
        const tierComparison = partnerTierOrder[left.partner.tier] -
            partnerTierOrder[right.partner.tier];
        if (tierComparison !== 0) {
            return tierComparison;
        }
        if (surface === 'deployment' && left.partner.id === 'cloudflare') {
            return -1;
        }
        if (surface === 'deployment' && right.partner.id === 'cloudflare') {
            return 1;
        }
        return compareSeededPartnerOrder(left, right, rotationSeed);
    });
    const nonPartners = addOns.filter((addOn) => !addOn.partner);
    return [...partners, ...nonPartners];
}