using System;
using Prebuild.Core.Attributes;
using Prebuild.Core.Utilities;

namespace Prebuild.Core.Nodes
{
    [DataNode("DatabaseReference")]
    public class DatabaseReferenceNode : DataNode
    {
        string name;
        Guid providerId;
        string connectionString;

        public string Name
        {
            get { return name; }
        }

        public Guid ProviderId
        {
            get { return providerId; }
        }

        public string ConnectionString
        {
            get { return connectionString; }
        }

        public override void Parse(System.Xml.XmlNode node)
        {
            name = Helper.AttributeValue(node, "name", name);

            string providerName = Helper.AttributeValue(node, "providerName", string.Empty);
            if (providerName != null)
            {
                switch (providerName)
                {
                    // digitaljeebus: pulled from HKLM\SOFTWARE\Microsoft\VisualStudio\9.0\DataProviders\*
                    // Not sure if these will help other operating systems, or if there's a better way.
                    case "Microsoft.SqlServerCe.Client.3.5":
                        providerId = new Guid("7C602B5B-ACCB-4acd-9DC0-CA66388C1533"); break;
                    case "System.Data.OleDb":
                        providerId = new Guid("7F041D59-D76A-44ed-9AA2-FBF6B0548B80"); break;
                    case "System.Data.OracleClient":
                        providerId = new Guid("8F5C5018-AE09-42cf-B2CC-2CCCC7CFC2BB"); break;
                    case "System.Data.SqlClient": 
                        providerId = new Guid("91510608-8809-4020-8897-FBA057E22D54"); break;
                    case "System.Data.Odbc":
                        providerId = new Guid("C3D4F4CE-2C48-4381-B4D6-34FA50C51C86"); break;
                    
                    default:
                        throw new ArgumentOutOfRangeException("providerName", providerName, "Could not provider name to an id.");
                }
            }
            else
                providerId = new Guid(Helper.AttributeValue(node, "providerId", Guid.Empty.ToString("B")));
            
            connectionString = Helper.AttributeValue(node, "connectionString", connectionString);

            base.Parse(node);
        }
    }
}