stacker.news/worker/streak.js

113 lines
4.3 KiB
JavaScript
Raw Normal View History

2023-02-02 19:47:09 +00:00
const STREAK_THRESHOLD = 100
2023-02-01 14:44:35 +00:00
function computeStreaks ({ models }) {
return async function () {
console.log('computing streaks')
// get all eligible users in the last day
// if the user doesn't have an active streak, add one
// if they have an active streak but didn't maintain it, end it
await models.$executeRaw(
`WITH day_streaks (id) AS (
SELECT "userId"
FROM
((SELECT "userId", floor(sum("ItemAct".msats)/1000) as sats_spent
FROM "ItemAct"
WHERE (created_at AT TIME ZONE 'UTC' AT TIME ZONE 'America/Chicago')::date >= (now() AT TIME ZONE 'America/Chicago' - interval '1 day')::date
2023-02-01 14:44:35 +00:00
GROUP BY "userId")
UNION ALL
(SELECT "userId", sats as sats_spent
FROM "Donation"
WHERE (created_at AT TIME ZONE 'UTC' AT TIME ZONE 'America/Chicago')::date >= (now() AT TIME ZONE 'America/Chicago' - interval '1 day')::date
2023-02-01 14:44:35 +00:00
)) spending
GROUP BY "userId"
HAVING sum(sats_spent) >= 100
), existing_streaks (id, started_at) AS (
SELECT "userId", "startedAt"
FROM "Streak"
WHERE "Streak"."endedAt" IS NULL
2023-02-01 14:44:35 +00:00
), new_streaks (id) AS (
SELECT day_streaks.id
FROM day_streaks
LEFT JOIN existing_streaks ON existing_streaks.id = day_streaks.id
WHERE existing_streaks.id IS NULL
2023-02-01 14:44:35 +00:00
), ending_streaks (id) AS (
SELECT existing_streaks.id
FROM existing_streaks
LEFT JOIN day_streaks ON existing_streaks.id = day_streaks.id
WHERE day_streaks.id IS NULL
), extending_streaks (id, started_at) AS (
SELECT existing_streaks.id, existing_streaks.started_at
FROM existing_streaks
JOIN day_streaks ON existing_streaks.id = day_streaks.id
),
-- a bunch of mutations
streak_insert AS (
INSERT INTO "Streak" ("userId", "startedAt", created_at, updated_at)
SELECT id, (now() AT TIME ZONE 'America/Chicago' - interval '1 day')::date, now_utc(), now_utc()
FROM new_streaks
), user_update_new_streaks AS (
UPDATE users SET streak = 1 FROM new_streaks WHERE new_streaks.id = users.id
), user_update_end_streaks AS (
UPDATE users SET streak = NULL FROM ending_streaks WHERE ending_streaks.id = users.id
), user_update_extend_streaks AS (
UPDATE users
SET streak = (now() AT TIME ZONE 'America/Chicago')::date - extending_streaks.started_at
FROM extending_streaks WHERE extending_streaks.id = users.id
2023-02-01 14:44:35 +00:00
)
UPDATE "Streak"
SET "endedAt" = (now() AT TIME ZONE 'America/Chicago' - interval '1 day')::date, updated_at = now_utc()
FROM ending_streaks
WHERE ending_streaks.id = "Streak"."userId" AND "endedAt" IS NULL`)
2023-02-01 14:44:35 +00:00
console.log('done computing streaks')
}
}
2023-02-02 19:47:09 +00:00
function checkStreak ({ models }) {
return async function ({ data: { id } }) {
console.log('checking streak', id)
// if user is actively streaking skip
const streak = await models.streak.findFirst({
where: {
userId: Number(id),
endedAt: null
}
})
if (streak) {
console.log('done checking streak', id)
return
}
await models.$executeRaw`
WITH streak_started (id) AS (
SELECT "userId"
FROM
((SELECT "userId", floor(sum("ItemAct".msats)/1000) as sats_spent
FROM "ItemAct"
WHERE (created_at AT TIME ZONE 'UTC' AT TIME ZONE 'America/Chicago')::date >= (now() AT TIME ZONE 'America/Chicago')::date
2023-02-02 19:47:09 +00:00
AND "userId" = ${Number(id)}
GROUP BY "userId")
UNION ALL
(SELECT "userId", sats as sats_spent
FROM "Donation"
WHERE (created_at AT TIME ZONE 'UTC' AT TIME ZONE 'America/Chicago')::date >= (now() AT TIME ZONE 'America/Chicago')::date
2023-02-02 19:47:09 +00:00
AND "userId" = ${Number(id)}
)) spending
GROUP BY "userId"
HAVING sum(sats_spent) >= ${STREAK_THRESHOLD}
), user_start_streak AS (
UPDATE users SET streak = 0 FROM streak_started WHERE streak_started.id = users.id
2023-02-02 19:47:09 +00:00
)
INSERT INTO "Streak" ("userId", "startedAt", created_at, updated_at)
SELECT id, (now() AT TIME ZONE 'America/Chicago')::date, now_utc(), now_utc()
FROM streak_started`
console.log('done checking streak', id)
}
}
module.exports = { checkStreak, computeStreaks }