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feat(reading): add save suppression to useReadingPosition

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Add suppressSavesFor(ms) API to temporarily block auto-saves after programmatic scrolls, preventing feedback loops where restore triggers save which triggers restore.
This commit is contained in:
Gigi
2025-10-22 23:05:11 +02:00
parent 497b6fa4be
commit 9aa914a704
1 changed files with 12 additions and 3 deletions
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15
src/hooks/useReadingPosition.ts
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@@ -30,6 +30,12 @@ export const useReadingPosition = ({
const hasSavedOnce = useRef(false)
const completionTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
const lastSavedAtRef = useRef<number>(0)
const suppressUntilRef = useRef<number>(0)
// Suppress auto-saves for a given duration (used after programmatic restore)
const suppressSavesFor = useCallback((ms: number) => {
suppressUntilRef.current = Date.now() + ms
}, [])
// Debounced save function
const scheduleSave = useCallback((currentPosition: number) => {
@@ -136,8 +142,10 @@ export const useReadingPosition = ({
positionRef.current = clampedProgress
onPositionChange?.(clampedProgress)
// Schedule auto-save if sync is enabled
scheduleSave(clampedProgress)
// Schedule auto-save if sync is enabled (unless suppressed)
if (Date.now() >= suppressUntilRef.current) {
scheduleSave(clampedProgress)
}
// Completion detection with 2s hold at 100%
if (!hasTriggeredComplete.current) {
@@ -208,6 +216,7 @@ export const useReadingPosition = ({
position,
isReadingComplete,
progressPercentage: Math.round(position * 100),
saveNow
saveNow,
suppressSavesFor
}
}