1 files changed, 41 insertions, 0 deletions
diff --git a/slips/src/app/Marina/Task/AuthenticationTask.cs b/slips/src/app/Marina/Task/AuthenticationTask.cs
new file mode 100644
index 0000000..75424a9
--- /dev/null
+++ b/slips/src/app/Marina/Task/AuthenticationTask.cs
@@ -0,0 +1,41 @@
+using Marina.Domain.Interfaces;
+using Marina.Domain.Repositories;
+using Marina.Presentation.DTO;
+using Marina.Web.Http;
+
+namespace Marina.Task {
+	public class AuthenticationTask : IAuthenticationTask {
+		public AuthenticationTask( ICustomerRepository customers, IHttpGateway gateway ) {
+			_customers = customers;
+			_gateway = gateway;
+		}
+
+		public DisplayResponseLineDTO AuthenticateUserUsing( LoginCredentialsDTO credentials ) {
+			if ( CheckIfPasswordMatches( credentials, _customers.FindBy( credentials.Username ) ) ) {
+				_gateway.AddAuthenticationCookieFor( credentials.Username, _customers.FindBy( credentials.Username ).ID( ) );
+				return ValidCredentialsMessage( credentials.Username );
+			}
+			else {
+				return InvalidCredentialsMessage( );
+			}
+		}
+
+		private static DisplayResponseLineDTO ValidCredentialsMessage( string username ) {
+			return new DisplayResponseLineDTO( string.Format( "Currently logged in as {0}", username ) );
+		}
+
+		private static DisplayResponseLineDTO InvalidCredentialsMessage() {
+			return new DisplayResponseLineDTO( "Invalid credentials specified" );
+		}
+
+		private static bool CheckIfPasswordMatches( LoginCredentialsDTO credentials, ICustomer customer ) {
+			if ( customer != null && customer.Registration( ) != null ) {
+				return customer.Registration( ).Password( ).Equals( credentials.Password );
+			}
+			return false;
+		}
+
+		private readonly ICustomerRepository _customers;
+		private readonly IHttpGateway _gateway;
+	}
+}
+\ No newline at end of file