modifprivatri wco and page

wco/privatri_mathieu/utils.js

@@ -0,0 +1,46 @@
+async function getOldestPrivatriids(dbName, storeName) {
+    return new Promise((resolve, reject) => {
+        const request = indexedDB.open(dbName, 1);
+
+        request.onsuccess = (event) => {
+            const db = event.target.result;
+
+            const transaction = db.transaction(storeName, "readonly");
+            const store = transaction.objectStore(storeName);
+            const cursorRequest = store.openCursor();
+            const uuidMap = {};
+
+            cursorRequest.onsuccess = (event) => {
+                const cursor = event.target.result;
+                if (cursor) {
+                    const obj = cursor.value;
+
+                    const [uuid, timestamp] = obj.privatriid.split("_");
+
+                    if (!uuidMap[uuid] || Number(timestamp) < uuidMap[uuid].timestamp) {
+                        uuidMap[uuid] = { privatriid: obj.privatriid, timestamp: Number(timestamp) };
+                    };
+
+                    cursor.continue();
+                } else {
+                    const result = Object.values(uuidMap).map(event => event.privatriid);
+                    
+                    resolve(result);
+                };
+            };
+
+            cursorRequest.onerror = (event) => reject(event);
+        };
+
+        request.onerror = (event) => reject(event);
+    });
+};
+
+async function syncronizeBackend(lastConnection) {
+    
+};
+
+export {
+    getOldestPrivatriids,
+    syncronizeBackend
+};