/// Copyright (c) Microsoft Corporation.  All rights reserved.

using System.Diagnostics.CodeAnalysis;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using VSLangProj;

namespace Microsoft.VisualStudio.Project.Automation
{
	[SuppressMessage("Microsoft.Interoperability", "CA1405:ComVisibleTypeBaseTypesShouldBeComVisible")]
	[ComVisible(true)]
	public class OAAssemblyReference : OAReferenceBase<AssemblyReferenceNode>
	{
		public OAAssemblyReference(AssemblyReferenceNode assemblyReference) :
			base(assemblyReference)
		{
		}

		#region Reference override
		public override int BuildNumber
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(null == BaseReferenceNode.ResolvedAssembly.Version))
				{
					return 0;
				}
				return BaseReferenceNode.ResolvedAssembly.Version.Build;
			}
		}
		public override string Culture
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(null == BaseReferenceNode.ResolvedAssembly.CultureInfo))
				{
					return string.Empty;
				}
				return BaseReferenceNode.ResolvedAssembly.CultureInfo.Name;
			}
		}
		public override string Identity
		{
			get
			{
				// Note that in this function we use the assembly name instead of the resolved one
				// because the identity of this reference is the assembly name needed by the project,
				// not the specific instance found in this machine / environment.
				if(null == BaseReferenceNode.AssemblyName)
				{
					return null;
				}
				return BaseReferenceNode.AssemblyName.FullName;
			}
		}
		public override int MajorVersion
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(null == BaseReferenceNode.ResolvedAssembly.Version))
				{
					return 0;
				}
				return BaseReferenceNode.ResolvedAssembly.Version.Major;
			}
		}
		public override int MinorVersion
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(null == BaseReferenceNode.ResolvedAssembly.Version))
				{
					return 0;
				}
				return BaseReferenceNode.ResolvedAssembly.Version.Minor;
			}
		}

		public override string PublicKeyToken
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
				(null == BaseReferenceNode.ResolvedAssembly.GetPublicKeyToken()))
				{
					return null;
				}
				StringBuilder builder = new StringBuilder();
				byte[] publicKeyToken = BaseReferenceNode.ResolvedAssembly.GetPublicKeyToken();
				for(int i = 0; i < publicKeyToken.Length; i++)
				{
					builder.AppendFormat("{0:x}", publicKeyToken[i]);
				}
				return builder.ToString();
			}
		}

		public override string Name
		{
			get
			{
				if(null != BaseReferenceNode.ResolvedAssembly)
				{
					return BaseReferenceNode.ResolvedAssembly.Name;
				}
				if(null != BaseReferenceNode.AssemblyName)
				{
					return BaseReferenceNode.AssemblyName.Name;
				}
				return null;
			}
		}
		public override int RevisionNumber
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(null == BaseReferenceNode.ResolvedAssembly.Version))
				{
					return 0;
				}
				return BaseReferenceNode.ResolvedAssembly.Version.Revision;
			}
		}
		public override bool StrongName
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(0 == (BaseReferenceNode.ResolvedAssembly.Flags & AssemblyNameFlags.PublicKey)))
				{
					return false;
				}
				return true;
			}
		}
		public override prjReferenceType Type
		{
			get
			{
				return prjReferenceType.prjReferenceTypeAssembly;
			}
		}
		public override string Version
		{
			get
			{
				if((null == BaseReferenceNode.ResolvedAssembly) ||
					(null == BaseReferenceNode.ResolvedAssembly.Version))
				{
					return string.Empty;
				}
				return BaseReferenceNode.ResolvedAssembly.Version.ToString();
			}
		}
		#endregion
	}
}