Implement OCR functionality for bib numbers using Google Cloud Vision. Introduce new methods for enabling OCR, processing images, and extracting numbers from OCR text. Update JavaScript to handle cloud-based OCR processing and improve error handling. Increment version code to 4.72.798 to reflect these changes.

js/v2/inscr-gestion.js

@@ -755,7 +755,11 @@
                 if (self.ocrBusy || activeScan !== self) {
                     return;
                 }
-                if (!self.workerReady || !self.video) {
+                if (!self.video) {
+                    self.setStatus(scanMsg(self.panel, 'data-msg-loading', 'Initialisation (1re fois)...', 'Initializing (first time)...'), true);
+                    return;
+                }
+                if (!cfg.bibOcrCloud && !self.workerReady) {
                     self.setStatus(scanMsg(self.panel, 'data-msg-loading', 'Initialisation (1re fois)...', 'Initializing (first time)...'), true);
                     return;
                 }
@@ -848,7 +852,10 @@
 
         BibScanSession.prototype.runOcr = function () {
             var self = this;
-            if (self.ocrBusy || !self.video || activeScan !== self || !self.workerReady) {
+            if (self.ocrBusy || !self.video || activeScan !== self) {
+                return;
+            }
+            if (!cfg.bibOcrCloud && !self.workerReady) {
                 return;
             }
             self.ocrBusy = true;
@@ -858,6 +865,62 @@
             }
             self.setStatus(scanMsg(self.panel, 'data-msg-scanning', 'Lecture en cours...', 'Reading...'), true);
 
+            // MSIN-4401 — Chemin produit : photo → Google Vision (serveur). Plus fiable que Tesseract mobile.
+            if (cfg.bibOcrCloud) {
+                grabOcrCanvas(self).then(function (canvas) {
+                    if (!canvas) {
+                        throw new Error('capture');
+                    }
+                    var dataUrl = canvas.toDataURL('image/jpeg', 0.92);
+                    return fetch((cfg.domain || '') + '/ajax_inscr_gestion.php', {
+                        method: 'POST',
+                        credentials: 'same-origin',
+                        headers: {'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'},
+                        body: 'a=bib_ocr&lang=' + encodeURIComponent(cfg.lang || 'fr')
+                            + '&image=' + encodeURIComponent(dataUrl)
+                    }).then(function (res) {
+                        return res.json();
+                    });
+                }).then(function (result) {
+                    if (fxInscrRedirectIfSessionExpired(result)) {
+                        return;
+                    }
+                    if (result && result.state === 'ok' && result.number) {
+                        self.applyNumber(String(result.number));
+                        return;
+                    }
+                    if (result && result.message === 'ocr_not_configured') {
+                        self.setStatus(
+                            (document.documentElement.lang === 'en')
+                                ? 'OCR not configured (Vision API key missing).'
+                                : 'OCR non configuré (clé Vision manquante).',
+                            false
+                        );
+                    } else {
+                        var base = scanMsg(self.panel, 'data-msg-invalid', 'Numéro illisible. Cadrez un seul numéro.', 'Unreadable number. Frame a single number.');
+                        if (result && result.seen) {
+                            base += ' (' + result.seen + ')';
+                        }
+                        self.setStatus(base, false);
+                    }
+                    window.setTimeout(function () {
+                        if (activeScan === self) {
+                            self.showReady();
+                        }
+                    }, 2200);
+                }).catch(function () {
+                    self.setStatus(scanMsg(self.panel, 'data-msg-invalid', 'Numéro illisible. Cadrez un seul numéro.', 'Unreadable number. Frame a single number.'), false);
+                    window.setTimeout(function () {
+                        if (activeScan === self) {
+                            self.showReady();
+                        }
+                    }, 2200);
+                }).then(function () {
+                    self.ocrBusy = false;
+                });
+                return;
+            }
+
             grabOcrCanvas(self).then(function (canvas) {
                 if (!canvas) {
                     throw new Error('capture');
@@ -939,14 +1002,16 @@
                 },
                 audio: false
             });
-            var workerPromise = getGlobalOcrWorker();
+            var readyPromise = cfg.bibOcrCloud
+                ? cameraPromise.then(function (stream) { return [stream, null]; })
+                : Promise.all([cameraPromise, getGlobalOcrWorker()]);
 
-            Promise.all([cameraPromise, workerPromise]).then(function (results) {
+            readyPromise.then(function (results) {
                 if (activeScan !== self) {
                     results[0].getTracks().forEach(function (track) { track.stop(); });
                     return;
                 }
-                self.workerReady = true;
+                self.workerReady = cfg.bibOcrCloud ? true : !!results[1];
                 self.stream = results[0];
                 self.video = document.createElement('video');
                 self.video.setAttribute('playsinline', 'true');
@@ -970,7 +1035,7 @@
             });
         };
 
-        if (document.querySelector('.inscr-gestion-bib-scan-toggle')) {
+        if (document.querySelector('.inscr-gestion-bib-scan-toggle') && !cfg.bibOcrCloud) {
             preloadOcrWorker();
         }