import serialize from '@/api/resolvers/serial.js' import { notifyEarner } from '@/lib/webPush.js' import { PrismaClient } from '@prisma/client' import { proportions } from '@/lib/madness.js' import { SN_USER_IDS } from '@/lib/constants.js' const TOTAL_UPPER_BOUND_MSATS = 10000000000 export async function earn ({ name }) { // grab a greedy connection const models = new PrismaClient() try { // compute how much sn earned got the month const [{ sum: sumDecimal }] = await models.$queryRaw` SELECT coalesce(sum(total), 0) as sum FROM rewards_days WHERE date_trunc('month', rewards_days.t) = date_trunc('month', (now() - interval '1 month') AT TIME ZONE 'America/Chicago')` // XXX primsa will return a Decimal (https://mikemcl.github.io/decimal.js) // because sum of a BIGINT returns a NUMERIC type (https://www.postgresql.org/docs/13/functions-aggregate.html) // and Decimal is what prisma maps it to https://www.prisma.io/docs/concepts/components/prisma-client/raw-database-access#raw-query-type-mapping // so check it before coercing to Number if (!sumDecimal || sumDecimal.lessThanOrEqualTo(0)) { console.log('done', name, 'no sats to award today') return } // extra sanity check on rewards ... if it's more than upper bound, we // probably have a bug somewhere or we've grown A LOT if (sumDecimal.greaterThan(TOTAL_UPPER_BOUND_MSATS)) { console.log('done', name, 'error: too many sats to award today', sumDecimal) return } const sum = Number(sumDecimal) console.log(name, 'giving away', sum, 'msats', 'rewarding all') /* How earnings (used to) work: 1/3: top 21% posts over last 36 hours, scored on a relative basis 1/3: top 21% comments over last 36 hours, scored on a relative basis 1/3: top upvoters of top posts/comments, scored on: - their trust - how much they tipped - how early they upvoted it - how the post/comment scored Now: 100% of earnings go to top 33% of comments/posts and their upvoters for month */ // get earners { userId, id, type, rank, proportion } const earners = await models.$queryRaw` SELECT id AS "userId", sum(proportion) as proportion, ROW_NUMBER() OVER (ORDER BY sum(proportion) DESC) as rank FROM user_values_days WHERE date_trunc('month', user_values_days.t) = date_trunc('month', (now() - interval '1 month') AT TIME ZONE 'America/Chicago') AND NOT (id = ANY (${SN_USER_IDS})) GROUP BY id ORDER BY proportion DESC LIMIT 64` // in order to group earnings for users we use the same createdAt time for // all earnings const now = new Date(new Date().getTime()) // this is just a sanity check because it seems like a good idea let total = 0 const notifications = {} for (const [i, earner] of earners.entries()) { const earnings = Math.floor(parseFloat(proportions[i] * sum)) total += earnings if (total > sum) { console.log(name, 'total exceeds sum', total, '>', sum) return } console.log('stacker', earner.userId, 'earned', earnings, 'proportion', earner.proportion, 'rank', earner.rank, 'type', earner.type) if (earnings > 0) { await serialize(models, models.$executeRaw`SELECT earn(${earner.userId}::INTEGER, ${earnings}, ${now}::timestamp without time zone, ${earner.type}::"EarnType", ${earner.id}::INTEGER, ${earner.rank}::INTEGER)`) const userN = notifications[earner.userId] || {} // sum total const prevMsats = userN.msats || 0 const msats = earnings + prevMsats // sum total per earn type (POST, COMMENT, TIP_COMMENT, TIP_POST) const prevEarnTypeMsats = userN[earner.type]?.msats || 0 const earnTypeMsats = earnings + prevEarnTypeMsats // best (=lowest) rank per earn type const prevEarnTypeBestRank = userN[earner.type]?.bestRank const earnTypeBestRank = prevEarnTypeBestRank ? Math.min(prevEarnTypeBestRank, Number(earner.rank)) : Number(earner.rank) notifications[earner.userId] = { ...userN, msats, [earner.type]: { msats: earnTypeMsats, bestRank: earnTypeBestRank } } } } Promise.allSettled( Object.entries(notifications).map(([userId, earnings]) => notifyEarner(parseInt(userId, 10), earnings)) ).catch(console.error) } finally { models.$disconnect().catch(console.error) } }