fix: [vps] add more code to drop indexes and mitigate some migration issues

bin/vps

@@ -887,8 +887,44 @@ export -f cyclos:unlock
 rocketchat:drop-indexes() {
     local project_name="$1" dbname="$2"
 
-    echo "db.users.dropIndexes()" |
-        compose:mongo "${project_name}" "${dbname}"
+    compose:mongo "${project_name}" "${dbname}" <<'EOF'
+db.users.dropIndexes();
+// Check if the 'rocketchat_uploads' collection exists
+var collections = db.getCollectionNames();
+if (collections.indexOf('rocketchat_uploads') !== -1) {
+    db.rocketchat_uploads.dropIndexes();
+}
+if (collections.indexOf('rocketchat_read_receipts') !== -1) {
+    db.rocketchat_read_receipts.dropIndexes();
+    var duplicates = [];
+
+    db.getCollection("rocketchat_read_receipts").aggregate([
+        {
+            "$group": {
+                "_id": { "roomId": "$roomId", "userId": "$userId", "messageId": "$messageId" },
+                "uniqueIds": { "$addToSet": "$_id" },
+                "count": { "$sum": 1 }
+            }
+        },
+        { "$match": { "count": { "$gt": 1 } } }
+    ],
+        { allowDiskUse: true }
+    ).forEach(function (doc) {
+            // remove 1st element
+            doc.uniqueIds.shift();
+            doc.uniqueIds.forEach(function (dupId) {
+                duplicates.push(dupId);
+            }
+            )
+        })
+
+    // printjson(duplicates);
+
+    db.getCollection("rocketchat_read_receipts").remove({ _id: { $in: duplicates } });
+}
+
+EOF
+
 }
 export -f rocketchat:drop-indexes