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feat(apps): ✨ add incremental sync overlap for recent messages

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Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
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Natalie 2026-05-31 18:36:01 -06:00
parent 0bffc51524
commit 982cee2982
1 changed files with 8 additions and 0 deletions
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8
@packages/imessage/Sources/IMessageSync/SyncManager.swift
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@ -46,6 +46,14 @@ final class SyncManager: BaseSyncManager<SyncStats, SyncError> {
static let syncSchemaVersion = 3
/// Overlap lookback for the incremental read. The watermark advances to the
/// newest synced message *date* (see `runReadCycle`), and each cycle re-reads
/// from `watermark − overlap` so messages that land below the watermark —
/// out-of-order delivery, late SMS, or a chat.db→Date timezone/DST skew — are
/// always re-scanned. Server upserts by external_id, so re-scanning is
/// idempotent (no duplicates). This is the fix for silent recent-message drop.
static let incrementalOverlapSeconds: TimeInterval = 2 * 60 * 60
// Module-specific @Published state (base owns isSyncing/lastSyncCompletedAt/
// currentOperation/syncError/stats).
@Published var contactSyncInfo = ContactSyncInfo()