1 files changed, 131 insertions, 0 deletions
diff --git a/Software/Visual_Studio/Tango.Core/DataSource.cs b/Software/Visual_Studio/Tango.Core/DataSource.cs
new file mode 100644
index 000000000..fb46faa2e
--- /dev/null
+++ b/Software/Visual_Studio/Tango.Core/DataSource.cs
@@ -0,0 +1,131 @@
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Data.SqlClient;
+using System.Data.SQLite;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Tango.Core
+{
+    /// <summary>
+    /// Represents an SQL data source.
+    /// </summary>
+    public class DataSource
+    {
+        /// <summary>
+        /// Gets or sets the type of source.
+        /// </summary>
+        public DataSourceType Type { get; set; }
+
+        /// <summary>
+        /// Gets or sets the address.
+        /// </summary>
+        public String Address { get; set; }
+
+        /// <summary>
+        /// Gets or sets the catalog name.
+        /// </summary>
+        public String Catalog { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether to use integrated security.
+        /// </summary>
+        public bool IntegratedSecurity { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user name to use if <see cref="IntegratedSecurity"/> is false.
+        /// </summary>
+        public String UserName { get; set; }
+
+        /// <summary>
+        /// Gets or sets the password to use if <see cref="IntegratedSecurity"/> is false.
+        /// </summary>
+        public String Password { get; set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DataSource"/> class.
+        /// </summary>
+        public DataSource()
+        {
+            Type = DataSourceType.SQLServer;
+            Address = "localhost\\SQLEXPRESS";
+            Catalog = "Tango";
+            IntegratedSecurity = true;
+            UserName = String.Empty;
+            Password = String.Empty;
+        }
+
+        /// <summary>
+        /// Creates a DBConnection instance which represents this data source.
+        /// </summary>
+        /// <returns></returns>
+        public DbConnection ToConnection()
+        {
+            switch (Type)
+            {
+                case DataSourceType.SQLite:
+
+                    var connection = new SQLiteConnection()
+                    {
+                        ConnectionString = new SQLiteConnectionStringBuilder() { DataSource = Path.GetFullPath(Address), ForeignKeys = true }.ConnectionString
+                    };
+                    return connection;
+
+                case DataSourceType.MDF:
+
+                    if (IntegratedSecurity)
+                    {
+                        return new SqlConnection(String.Format("Data Source=(LocalDB)\\MSSQLLocalDB;AttachDbFileName={0};Initial Catalog={1};Integrated Security=True;MultipleActiveResultSets=True;App=EntityFramework", Path.GetFullPath(Address), Catalog));
+                    }
+                    else
+                    {
+                        return new SqlConnection(String.Format("Data Source=(LocalDB)\\MSSQLLocalDB;AttachDbFileName={0};Initial Catalog={1};Integrated Security=False;User Id={2};Password={3};MultipleActiveResultSets=True;App=EntityFramework", Path.GetFullPath(Address), Catalog, UserName, Password));
+                    }
+
+                case DataSourceType.SQLServer:
+
+                    if (IntegratedSecurity)
+                    {
+                        return new SqlConnection(String.Format("Data Source={0};Initial Catalog={1};Integrated Security=True;", Address, Catalog));
+                    }
+                    else
+                    {
+                        return new SqlConnection(String.Format("Data Source={0};Initial Catalog={1};Integrated Security=False;User Id={2};Password={3};", Address, Catalog, UserName, Password));
+                    }
+
+                case DataSourceType.Azure:
+
+                    if (IntegratedSecurity)
+                    {
+                        //var provider = new Microsoft.IdentityModel.Clients();
+
+                        SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
+
+                        builder.DataSource = Address;
+                        builder.InitialCatalog = Catalog;
+                        builder.UserID = UserName;
+                        builder.TrustServerCertificate = true;
+                        builder.ConnectTimeout = 15;
+                        builder.Pooling = false;
+
+                        builder.Authentication = SqlAuthenticationMethod.ActiveDirectoryInteractive;
+
+                        SqlConnection sqlConnection = new SqlConnection(builder.ConnectionString);
+
+                        return sqlConnection;
+                    }
+                    else
+                    {
+                        return new SqlConnection(String.Format("Server=tcp:{0},1433;Initial Catalog={1};Persist Security Info=False;User ID={2};Password={3};MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Authentication=\"Active Directory Password\";", Address, Catalog, UserName, Password));
+                    }
+
+                default:
+
+                    return null;
+            }
+        }
+    }
+}