// This example shows how to completely turn off interaction in a console application.

using System;
using OpcLabs.EasyOpc.UA;
using OpcLabs.EasyOpc.UA.Engine;
using OpcLabs.EasyOpc.UA.OperationModel;

namespace UADocExamples.Interaction
{
    partial class ConsoleInteraction
    {
        public static void TurnOff()
        {
            // Do not implicitly trust any endpoint URLs. 
            EasyUAClient.SharedParameters.EngineParameters.CertificateAcceptancePolicy.TrustedEndpointUrlStrings.Clear();

            // Completely disable the console interaction.
            EasyUAClient.SharedParameters.PluginSetups.FindName("UAConsoleInteraction").Enabled = false;

            // Define which server we will work with.
            UAEndpointDescriptor endpointDescriptor = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
            // Require secure connection, in order to enforce the certificate check.
            endpointDescriptor.EndpointSelectionPolicy = UAMessageSecurityModes.Secure;
            
            // Instantiate the client object.
            var client = new EasyUAClient();

            UAAttributeData attributeData;
            try
            {
                // Obtain attribute data.
                // The operation will fail, unless you set up mutual trust using certificate stores.
                attributeData = client.Read(endpointDescriptor, "nsu=http://test.org/UA/Data/ ;i=10853");
            }
            catch (UAException uaException)
            {
                Console.WriteLine("*** Failure: {0}", uaException.GetBaseException().Message);
                return;
            }

            // Display results.
            Console.WriteLine("Value: {0}", attributeData.Value);
            Console.WriteLine("ServerTimestamp: {0}", attributeData.ServerTimestamp);
            Console.WriteLine("SourceTimestamp: {0}", attributeData.SourceTimestamp);
            Console.WriteLine("StatusCode: {0}", attributeData.StatusCode);
        }
    }
}

// Shows how to disable and enable the OPC UA Complex Data plug-in.

using System;
using OpcLabs.EasyOpc.UA;
using OpcLabs.EasyOpc.UA.OperationModel;

namespace UADocExamples.ComplexData._PluginSetup
{
    class Enabled
    {
        public static void Main1()
        {
            // Define which server and node we will work with.
            UAEndpointDescriptor endpointDescriptor =
                "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
            // or "http://opcua.demo-this.com:51211/UA/SampleServer" (currently not supported)
            // or "https://opcua.demo-this.com:51212/UA/SampleServer/"
            UANodeDescriptor nodeDescriptor =
                "nsu=http://test.org/UA/Data/ ;i=10239"; // [ObjectsFolder]/Data.Static.Scalar.StructureValue


            // We will explicitly disable the Complex Data plug-in, and read a node which returns complex data. We will 
            // receive an object of type UAExtensionObject, which contains the encoded data in its binary form. In this 
            // form, the data cannot be easily further processed by your application.
            //
            // Disabling the Complex Data plug-in may be useful e.g. for licensing reasons (when the product edition you 
            // have does not support the Complex Data plug-in, and you want to avoid the associated error), or for
            // performance reasons (if you do not need the internal content of the value, for example if your code just
            // needs to take the value read, and write it elsewhere).

            var client1 = new EasyUAClient();
            client1.InstanceParameters.PluginSetups.FindName("UAComplexDataClient").Enabled = false;

            object value1;
            try
            {
                value1 = client1.ReadValue(endpointDescriptor, nodeDescriptor);
            }
            catch (UAException uaException)
            {
                Console.WriteLine("*** Failure: {0}", uaException.GetBaseException().Message);
                return;
            }
            Console.WriteLine(value1);


            // Now we will read the same value, but with the Complex Data plug-in enabled. This time we will receive an
            // object of type UAGenericObject, which contains the data in the decoded form, accessible for further 
            // processing by your application.
            //
            // Note that it is not necessary to explicitly enable the Complex Data plug-in like this, because it is enabled
            // by default.

            var client2 = new EasyUAClient();
            client2.InstanceParameters.PluginSetups.FindName("UAComplexDataClient").Enabled = true;

            object value2 = client2.ReadValue(endpointDescriptor, nodeDescriptor);
            Console.WriteLine(value2);


            // Example output:
            //
            // Binary Byte[1373]; {nsu=http://test.org/UA/Data/ ;i=11437}
            // (ScalarValueDataType) structured

            // On the first line, the type and length of the encoded data is shown, and the node ID is the encoding ID.
            // On the 2nd line, the kind (structured) and the name of the complex data type (ScalarValueDataType) is shown.
        }
    }
}