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refactor: split immersion tracker query modules

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This commit is contained in:
Kyle Yasuda
2026-03-27 00:33:43 -07:00
parent 8c633f7e48
commit ac857e932e
13 changed files with 2687 additions and 2634 deletions
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17
src/core/services/immersion-tracker/maintenance.ts
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@@ -25,8 +25,21 @@ interface RawRetentionResult {
}
export function toMonthKey(timestampMs: number): number {
const monthDate = new Date(timestampMs);
return monthDate.getUTCFullYear() * 100 + monthDate.getUTCMonth() + 1;
const epochDay = Number(BigInt(Math.trunc(timestampMs)) / BigInt(DAILY_MS));
const z = epochDay + 719468;
const era = Math.floor(z / 146097);
const doe = z - era * 146097;
const yoe = Math.floor(
(doe - Math.floor(doe / 1460) + Math.floor(doe / 36524) - Math.floor(doe / 146096)) / 365,
);
let year = yoe + era * 400;
const doy = doe - (365 * yoe + Math.floor(yoe / 4) - Math.floor(yoe / 100));
const mp = Math.floor((5 * doy + 2) / 153);
const month = mp + (mp < 10 ? 3 : -9);
if (month <= 2) {
year += 1;
}
return year * 100 + month;
}
export function pruneRawRetention(