// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System;
using System.Runtime.Versioning;
using ICSharpCode.SharpDevelop.Project;

namespace ICSharpCode.PackageManagement
{
	public class ProjectTargetFramework
	{
		MSBuildBasedProject project;
		FrameworkName targetFramework;
		
		public ProjectTargetFramework(MSBuildBasedProject project)
		{
			this.project = project;
			GetTargetFramework();
		}
		
		void GetTargetFramework()
		{
			string identifier = GetTargetFrameworkIdentifier();
			string version = GetTargetFrameworkVersion();
			string profile = GetTargetFrameworkProfile();
			
			GetTargetFramework(identifier, version, profile);
		}
		
		void GetTargetFramework(string identifier, string version, string profile)
		{
			string name = String.Format("{0}, Version={1}, Profile={2}", identifier, version, profile);
			targetFramework = new FrameworkName(name);
		}
		
		string GetTargetFrameworkIdentifier()
		{
			return GetEvaluatedPropertyOrDefault("TargetFrameworkIdentifier", ".NETFramework");
		}
		
		string GetTargetFrameworkVersion()
		{
			return project.GetEvaluatedProperty("TargetFrameworkVersion");
		}
		
		string GetTargetFrameworkProfile()
		{
			return GetEvaluatedPropertyOrDefault("TargetFrameworkProfile", String.Empty);
		}
		
		string GetEvaluatedPropertyOrDefault(string propertyName, string defaultPropertyValue)
		{
			string propertyValue = project.GetEvaluatedProperty(propertyName);
			if (String.IsNullOrEmpty(propertyValue)) {
				return defaultPropertyValue;
			}
			return propertyValue;
		}
		
		public FrameworkName TargetFrameworkName {
			get { return targetFramework; }
		}
	}
}