Use real UUIDs for pendingCoroutines

src/qml/Python.qml

@@ -15,7 +15,7 @@ Python {
     }
 
     function callCoro(name, args=[], onSuccess=null, onError=null) {
-        let uuid = Math.random() + "." + name
+        let uuid = name + "." + CppUtils.uuid()
 
         pendingCoroutines[uuid] = {onSuccess, onError}
         call("APP.call_backend_coro", [name, uuid, args])
@@ -25,7 +25,7 @@ Python {
         accountId, name, args=[], onSuccess=null, onError=null
     ) {
         callCoro("wait_until_client_exists", [accountId], () => {
-            let uuid = Math.random() + "." + name
+            let uuid = accountId + "." + name + "." + CppUtils.uuid()
 
             pendingCoroutines[uuid] = {onSuccess, onError}
             call("APP.call_client_coro", [accountId, name, uuid, args])

src/utils.cpp

@@ -1,5 +1,5 @@
 #include <QLocale>
-#include <QDebug>
+#include <QUuid>
 
 #include "utils.h"
 
@@ -14,3 +14,8 @@ QString Utils::formattedBytes(qint64 bytes, int precision) {
         bytes, precision, QLocale::DataSizeTraditionalFormat
     );
 };
+
+
+QString Utils::uuid() {
+    return QUuid::createUuid().toString(QUuid::WithoutBraces);
+}

src/utils.h

@@ -14,6 +14,7 @@ public:
 
 public slots:
     QString formattedBytes(qint64 bytes, int precision = 2);
+    QString uuid();
 
 private:
     QLocale m_locale;