Throw exception on invalid length of tuples for credentials and address

source/libdnet/api/client.d

@@ -4,4 +4,77 @@ import libdnet.protobuf.dnet;
 import std.socket;
 import tristanable.manager;
 import tristanable.queue;
+import tasky;
+import libdnet.api.exceptions;
 
+
+/**
+* ConnectionDetails
+*
+* Contains user credentials and network
+* information used when connecting to
+* a DNET server
+*/
+public struct ConnectionDetails
+{
+    import std.conv : to;
+    
+    public string username;
+    public string password;
+    public Address address;
+
+    this(string[] credentials, string[] address)
+    {
+        /* Credentials must be valid */
+        if(credentials.length != 2)
+        {
+            throw new DNetException("Credentials must be tuple of length 2");
+        }
+
+        /* Address must be valid */
+        if(address.length != 2)
+        {
+            throw new DNetException("Address must be tuple of length 2");
+        }
+        
+        
+        /* FIXME: Also throw for invalid address */
+
+        this.username = credentials[0];
+        this.password = credentials[1];
+        this.address = parseAddress(address[0], to!(ushort)(address[1]));
+    }
+}
+
+public final class Client
+{
+    /**
+    * Server connection details
+    */
+    private ConnectionDetails connInfo;
+
+    /**
+    * Protocol task manager (I/O)
+    */
+    private TaskManager taskManager;
+
+    this(ConnectionDetails connInfo)
+    {
+        /* Set the connection details */
+        this.connInfo = connInfo;
+    }
+
+    /**
+    * Attempts to connect to the server indicated by the
+    * ConnectionDetails provided on construction
+    */
+    public void connect()
+    {
+        /* Attempt to create a connection */
+        /* FIXME: Add SocketOSException catch */
+        Socket serverSock = new Socket(connInfo.address.addressFamily, SocketType.STREAM, ProtocolType.TCP);
+
+        /* Initialize a new Tasky engine */
+        taskManager = new TaskManager(serverSock);
+    }
+}