Method deleteOneDriveAppData

ui-linux/src/backend.cpp:1202–1237

}

void Backend::deleteOneDriveAppData(uint appId, const QString &token)
{
    // Match Windows behavior: list all files under accountId/appId/, then delete each one
    // First, get the folder ID for CloudRedirect/<accountId>/<appId>
    QString folderPath = QString("CloudRedirect/%1/%2").arg(m_accountId).arg(appId);
    QUrl url(QString("https://graph.microsoft.com/v1.0/me/drive/root:/%1:?$select=id").arg(folderPath));

    QNetworkRequest req(url);
    req.setRawHeader("Authorization", ("Bearer " + token).toUtf8());

    auto *reply = m_nam->get(req);
    connect(reply, &QNetworkReply::finished, this, [this, reply, token, appId]() {
        reply->deleteLater();
        int status = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
        
        if (status == 404) {
            fprintf(stderr, "[Backend] OneDrive folder for app %u not found (nothing to delete)\n", appId);
            return;
        }
        if (reply->error() != QNetworkReply::NoError) {
            fprintf(stderr, "[Backend] Failed to get OneDrive folder for app %u: %s\n",
                    appId, reply->errorString().toUtf8().constData());
            return;
        }

        QJsonDocument doc = QJsonDocument::fromJson(reply->readAll());
        QString folderId = doc.object().value("id").toString();
        if (folderId.isEmpty()) {
            fprintf(stderr, "[Backend] OneDrive folder ID empty for app %u\n", appId);
            return;
        }

        // List all children recursively, delete files only (matches Windows behavior)
        listAndDeleteOneDriveFiles(folderId, token, appId);
    });
}

void Backend::listAndDeleteOneDriveFiles(const QString &folderId, const QString &token, uint appId)
{