2 files changed, 70 insertions, 0 deletions
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/Authentication/DefaultAuthenticationProvider.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/Authentication/DefaultAuthenticationProvider.cs
new file mode 100644
index 000000000..c8e89ac2f
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/Authentication/DefaultAuthenticationProvider.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.BL.Entities;
+
+namespace Tango.PPC.Common.Authentication
+{
+    public class DefaultAuthenticationProvider : IAuthenticationProvider
+    {
+        public User CurrentUser
+        {
+            get
+            {
+                throw new NotImplementedException();
+            }
+        }
+
+        public event EventHandler<User> CurrentUserChanged;
+
+        public User Login(string email, string password)
+        {
+            throw new NotImplementedException();
+        }
+
+        public void Logout()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/Authentication/IAuthenticationProvider.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/Authentication/IAuthenticationProvider.cs
new file mode 100644
index 000000000..0892932a8
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/Authentication/IAuthenticationProvider.cs
@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.BL.Entities;
+
+namespace Tango.PPC.Common.Authentication
+{
+    /// <summary>
+    /// Represents the Machine Studio user authentication provider responsible for the current logged-in user.
+    /// </summary>
+    public interface IAuthenticationProvider
+    {
+        /// <summary>
+        /// Occurs when the current logged-in user has changed.
+        /// </summary>
+        event EventHandler<User> CurrentUserChanged;
+
+        /// <summary>
+        /// Gets the current logged-in user.
+        /// </summary>
+        User CurrentUser { get; }
+
+        /// <summary>
+        /// Performs a user login by the specified email and password.
+        /// </summary>
+        /// <param name="email">The email.</param>
+        /// <param name="password">The password.</param>
+        /// <returns></returns>
+        User Login(String email, String password);
+
+        /// <summary>
+        /// Logs-out the current logged-in user.
+        /// </summary>
+        void Logout();
+    }
+}