Dev to Main Sync

[AnujChhikara]

Date: 21 July , 2026

Developer Name: @AnujChhikara

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Issue Ticket Number

• Reduce Firestore reads on users & usersStatus collections (avoid full-collection scans) #2603

PRs going for sync

• refactor: reduce Firestore reads on users & usersStatus collections #2602

Description

Most reads scanned entire collections when only non-archived (active) users are needed. Switch the hot paths to active-users-first, paginated, batched reads.

GET /users/status:

Paginate non-archived users (fetchNonArchivedUsers, doc-id cursors) then batch-fetch their statuses (getUserStatusForUserIds, chunked in) instead of scanning all statuses with per-user lookups.
links.next/prev only emitted when a page exists in that direction.
Discord idle crons (group-idle, group-idle-7d):

Active-users-first: page non-archived users -> their statuses -> filter IDLE, avoiding stale IDLE statuses of archived users and per-user reads.
Fix 7-day idle calc: align the OOO fetch window with the idle-day window (idleFrom ?? currentStatus.from ?? now) so past OOO is excluded when idleFrom is missing.
Other:

getTaskBasedUsersStatus: per-user tasks query -> chunked in.
fetchAllUsers({ nonArchivedOnly }): active-only option, used by markUnverified and updateDiscordNicknames.
Reuse getPaginationLink util (basePath param) instead of a duplicate helper.

Documentation Updated?

• Yes
• No

Under Feature Flag

• Yes
• No

Database Changes

• Yes
• No

Breaking Changes

• Yes
• No

Development Tested?

• Yes
• No

Screenshots

Screen.Recording.2026-07-21.at.10.41.32.PM.mov

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