// 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 System.IO;
using System.Runtime.Versioning;

using NuGet;

namespace ICSharpCode.PackageManagement
{
	public class PackageFromRepository : IPackageFromRepository
	{
		IPackage package;
		bool? hasDependencies;
		
		public PackageFromRepository(IPackage package, IPackageRepository repository)
		{
			this.package = package;
			this.Repository = repository;
		}

		public IPackageRepository Repository { get; private set; }
		
		public IEnumerable<IPackageAssemblyReference> AssemblyReferences {
			get { return package.AssemblyReferences; }
		}
		
		public string Id {
			get { return package.Id; }
		}
		
		public SemanticVersion Version {
			get { return package.Version; }
		}
		
		public string Title {
			get { return package.Title; }
		}
		
		public IEnumerable<string> Authors {
			get { return package.Authors; }
		}
		
		public IEnumerable<string> Owners {
			get { return package.Owners; }
		}
		
		public Uri IconUrl {
			get { return package.IconUrl; }
		}
		
		public Uri LicenseUrl {
			get { return package.LicenseUrl; }
		}
		
		public Uri ProjectUrl {
			get { return package.ProjectUrl;}
		}
		
		public bool RequireLicenseAcceptance {
			get { return package.RequireLicenseAcceptance; }
		}
		
		public string Description {
			get { return package.Description; }
		}
		
		public string Summary {
			get { return package.Summary; }
		}
		
		public string Language {
			get { return package.Language; }
		}
		
		public string Tags {
			get { return package.Tags; }
		}
		
		public IEnumerable<FrameworkAssemblyReference> FrameworkAssemblies {
			get { return package.FrameworkAssemblies; }
		}
		
		public IEnumerable<PackageDependency> Dependencies {
			get { return package.GetCompatiblePackageDependencies(null); }
		}
		
		public Uri ReportAbuseUrl {
			get { return package.ReportAbuseUrl; }
		}
		
		public int DownloadCount {
			get { return package.DownloadCount; }
		}
		
		public DateTime? LastUpdated {
			get { return GetLastUpdated(); }
		}
		
		DateTime? GetLastUpdated()
		{
			DateTimeOffset? lastUpdated = GetDataServicePackageLastUpdated();
			if (lastUpdated.HasValue) {
				return lastUpdated.Value.DateTime;
			}
			return null;
		}
		
		protected virtual DateTimeOffset? GetDataServicePackageLastUpdated()
		{
			var dataServicePackage = package as DataServicePackage;
			if (dataServicePackage != null) {
				return dataServicePackage.LastUpdated;
			}
			return null;
		}
		
		public IEnumerable<IPackageFile> GetFiles()
		{
			return package.GetFiles();
		}
		
		public Stream GetStream()
		{
			return package.GetStream();
		}
		
		public bool HasDependencies {
			get {
				if (!hasDependencies.HasValue) {
					IEnumerator<PackageDependency> enumerator = Dependencies.GetEnumerator();
					hasDependencies = enumerator.MoveNext();
				}
				return hasDependencies.Value;
			}
		}
		
		public bool IsLatestVersion {
			get { return package.IsLatestVersion; }
		}
		
		public Nullable<DateTimeOffset> Published {
			get { return package.Published; }
		}
		
		public string ReleaseNotes {
			get { return package.ReleaseNotes; }
		}
		
		public string Copyright {
			get { return package.Copyright; }
		}
		
		public bool IsAbsoluteLatestVersion {
			get { return package.IsAbsoluteLatestVersion; }
		}
		
		public bool Listed {
			get { return package.Listed; }
		}
		
		public IEnumerable<PackageDependencySet> DependencySets {
			get { return package.DependencySets; }
		}
		
		public IEnumerable<FrameworkName> GetSupportedFrameworks()
		{
			return package.GetSupportedFrameworks();
		}
		
		public override string ToString()
		{
			return package.ToString();
		}
		
		public ICollection<PackageReferenceSet> PackageAssemblyReferences {
			get { return package.PackageAssemblyReferences; }
		}
		
		public Version MinClientVersion {
			get { return package.MinClientVersion; }
		}
		
		public Uri GalleryUrl {
			get {
				var dataServicePackage = package as DataServicePackage;
				if (dataServicePackage != null) {
					return dataServicePackage.GalleryDetailsUrl;
				}
				return null;
			}
		}
		
		public bool DevelopmentDependency {
			get { return package.DevelopmentDependency; }
		}
	}
}