public string GetMacAddressHash()

in src/common/Logging/MacAddressHash/MACInformationProvider.cs [71:117]
41 lines of code
11 McCabe index (conditional complexity)

        public string GetMacAddressHash()
        {
            string persistedValue = null;
            string result = null;

            // Check if VS already persisted a mac address hash in the registry
            if (this._platform.IsWindows)
            {
                persistedValue = this._vsRegistryPropertyReader.GetProperty(MacAddressKey) as string;

                if (ValidateMacAddressHash(persistedValue))
                {
                    result = persistedValue;
                    // Persist the value in the client config so, if VS get uninstalled, we keep our deviceid.
                    PersistMacAddressHash(result);
                    return result;
                }
            }

            // Check if VSCode is already persisting a mac address
            persistedValue = this._vsCodeStorageReader.MachineId;
            if (ValidateMacAddressHash(persistedValue))
            {
                result = persistedValue;
                // Persist the value in the client config so, if VSCode get uninstalled, we keep our deviceid.
                PersistMacAddressHash(result);
                return result;
            }

            // Check if the ClientConfig has the mac address hash
            persistedValue = this._clientConfig.GetProperty(MacAddressKey) as string;
            if (ValidateMacAddressHash(persistedValue))
            {
                return persistedValue;
            }

            // We don't have any persisted mac hash
            string computedHash = ComputeMacAddressHash();
            if (ValidateMacAddressHash(computedHash))
            {
                PersistMacAddressHash(computedHash);
                return computedHash;
            }

            // If anything fails return zero hash
            return ZeroHash;
        }