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fix: AI visual barcode fallback fires only once per scanner session

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If Gemini cannot identify the product visually, mark _aiFallbackExhausted=true
for the current scanner session so the 5s timer never fires again. The scanner
restarts normally (user can keep trying with the barcode reader) and a persistent
status message is shown: 'AI: product not recognized — try scanning the barcode'.
_aiFallbackExhausted resets to false in stopScanner() so the next camera session
starts fresh.
This commit is contained in:
dadaloop82
2026-05-29 17:43:55 +00:00
parent 98c38f017e
commit b1bcf9e714
6 changed files with 21 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
assets/js/app.js
+11 -7
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@@ -1944,6 +1944,7 @@ let aiStream = null;
let _scanZoomLevel = 2; // always 2x
let _torchActive = false;
let _aiFallbackTimer = null;
let _aiFallbackExhausted = false; // true after one failed AI visual attempt — reset when scanner is closed
// Apply fixed 2x zoom (hardware if available, CSS fallback)
async function _applyFixedZoom() {
@@ -2174,17 +2175,19 @@ async function _tryGeminiVisualBarcode() {
showToast(t('error.connection'), 'error');
}
} else {
scanLog('AI visual: product not identified');
scanLog('AI visual: product not identified — exhausted for this session');
_aiFallbackExhausted = true;
showLoading(false);
showToast(t('scan.ai_fallback_not_found'), 'warning');
_setScanStatus(t('scan.status_ready'), '', '');
// Restart scanner so user can try again
_setScanStatus(t('scan.ai_fallback_exhausted'), 'retry', '');
// Restart the scanner so the user can keep trying with the barcode reader,
// but the 5s AI timer will NOT fire again (_aiFallbackExhausted=true).
setTimeout(() => initScanner(), 300);
}
} catch (e) {
scanLog(`AI visual error: ${e.message}`);
_aiFallbackExhausted = true;
showLoading(false);
showToast(t('error.connection'), 'error');
_setScanStatus(t('scan.ai_fallback_exhausted'), 'retry', '');
setTimeout(() => initScanner(), 300);
} finally {
_aiBarcodeVisualRunning = false;
@@ -6615,10 +6618,10 @@ async function initScanner() {
}
// After 5s without a scan, auto-trigger AI visual identification (if enabled)
if (_geminiAvailable && getSettings().barcode_ai_fallback) {
if (_geminiAvailable && getSettings().barcode_ai_fallback && !_aiFallbackExhausted) {
clearTimeout(_aiFallbackTimer);
_aiFallbackTimer = setTimeout(() => {
if (scannerStream) { // still scanning — no barcode found yet
if (scannerStream && !_aiFallbackExhausted) { // still scanning — no barcode found yet
scanLog('5s elapsed without barcode — triggering AI visual fallback');
_tryGeminiVisualBarcode();
}
@@ -6948,6 +6951,7 @@ function stopScanner() {
_scanZoomLevel = 2; // always 2x on next start
_torchActive = false;
clearTimeout(_aiFallbackTimer); _aiFallbackTimer = null;
_aiFallbackExhausted = false; // reset so a new scanner session can try again
if (scannerStream) {
scannerStream.getTracks().forEach(t => t.stop());
scannerStream = null;