//
// FileTemplateReference.cs: Allows project templates to reference file 
//     templates rather than including full file templates.
//
// Author:
//     Michael Hutchinson <mhutchinson@novell.com>
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// 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.Xml;

using MonoDevelop.Projects;
using MonoDevelop.Core;
using MonoDevelop.Core.StringParsing;

namespace MonoDevelop.Ide.Templates
{
	public class FileTemplateReference : FileDescriptionTemplate
	{
		FileTemplate innerTemplate;		
		string name;
		bool suppressAutoOpen;
		
		public override void Load (XmlElement filenode, FilePath baseDirectory)
		{
			name = filenode.GetAttribute ("name");
			string templateID = filenode.GetAttribute ("TemplateID");
			if (string.IsNullOrEmpty (templateID))
				throw new InvalidOperationException ("TemplateID not set");
			innerTemplate = FileTemplate.GetFileTemplateByID (templateID);
			if (innerTemplate == null)
				throw new InvalidOperationException ("Could not find template with ID " + templateID);
			
			string suppressAutoOpenStr = filenode.GetAttribute ("SuppressAutoOpen");
			if (!string.IsNullOrEmpty (suppressAutoOpenStr)) {
				try {
					suppressAutoOpen = bool.Parse (suppressAutoOpenStr);
				} catch (FormatException) {
					throw new InvalidOperationException ("Invalid value for SuppressAutoOpen in template.");
				}
			}
		}

		public override string Name {
			get { return name;}
		}
		
		public override bool AddToProject (SolutionFolderItem policyParent, Project project, string language, string directory, string entryName)
		{
			string[,] customTags = new string[,] {
				{"ProjectName", project.Name},
				{"EntryName", entryName},
				{"EscapedProjectName", GetDotNetIdentifier (project.Name) }
			};				
			
			string substName = StringParserService.Parse (this.name, customTags);
			
			foreach (FileDescriptionTemplate fdt in innerTemplate.Files) {
				if (fdt.EvaluateCreateCondition ()) {
					if (!fdt.AddToProject (policyParent, project, language, directory, substName))
						return false;
				}
			}
			return true;
		}

		static string GetDotNetIdentifier (string identifier)
		{
			var sb = new System.Text.StringBuilder ();
			foreach (char c in identifier)
				if (char.IsLetter (c) || c == '_' || (sb.Length > 0 && char.IsNumber (c)))
					sb.Append (c);
			if (sb.Length > 0)
				return sb.ToString ();
			else
				return "Application";
		}
		
		public override void Show ()
		{
			if (suppressAutoOpen)
				return;
			foreach (FileDescriptionTemplate fdt in innerTemplate.Files) {
				fdt.Show ();
			}
		}
		
		public override bool IsValidName (string name, string language)
		{
			return innerTemplate.IsValidName (name, language);
		}

		internal override void SetProjectTagModel (IStringTagModel tagModel)
		{
			base.SetProjectTagModel (tagModel);
			foreach (FileDescriptionTemplate fdt in innerTemplate.Files) {
				fdt.SetProjectTagModel (tagModel);
			}
		}
	}
}