// 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.Collections.Generic;

using NuGet;

namespace ICSharpCode.PackageManagement.Scripting
{
	public class PackageInitializationScripts : IPackageInitializationScripts
	{
		ISolutionPackageRepository solutionPackageRepository;
		IPackageScriptFactory scriptFactory;
		List<IPackageScript> scripts;
		
		public PackageInitializationScripts(
			ISolutionPackageRepository solutionPackageRepository,
			IPackageScriptFactory scriptFactory)
		{
			this.solutionPackageRepository = solutionPackageRepository;
			this.scriptFactory = scriptFactory;
		}
		
		public void Run(IPackageScriptSession session)
		{
			foreach (IPackageScript script in GetScripts()) {
				script.Run(session);
			}
		}
		
		List<IPackageScript> GetScripts()
		{
			if (scripts == null) {
				CreatePackageInitializationScripts();
			}
			return scripts;
		}
		
		void CreatePackageInitializationScripts()
		{
			scripts = new List<IPackageScript>();
			foreach (IPackage package in GetPackages()) {
				IPackageScript script = CreateInitializeScript(package);
				if (script.Exists()) {
					scripts.Add(script);
				}
			}
		}
		
		IEnumerable<IPackage> GetPackages()
		{
			return solutionPackageRepository.GetPackagesByDependencyOrder();
		}
		
		IPackageScript CreateInitializeScript(IPackage package)
		{
			string packageInstallDirectory = solutionPackageRepository.GetInstallPath(package);
			return scriptFactory.CreatePackageInitializeScript(package, packageInstallDirectory);
		}
		
		public bool Any()
		{
			List<IPackageScript> scripts = GetScripts();
			return scripts.Count > 0;
		}
	}
}