using System.Collections.Generic;
using System.Linq;
using ICSharpCode.NRefactory.CSharp;

namespace SharpieBinder
{
	public static class Commenter
	{
		/// <summary>
		/// Inserts comments with "summary" tag over ast node. multiline.
		/// </summary>
		public static void InsertSummary(AstNode node, IEnumerable<string> lines)
		{
			if (node?.Parent != null && lines != null)
			{
				var commentLinesList = lines.ToList();
				if (commentLinesList.Count > 0)
				{
					node.Parent.InsertChildBefore(node, new Comment(" <summary>", CommentType.Documentation), Roles.Comment);
					foreach (var comment in commentLinesList)
					{
						node.Parent.InsertChildBefore(node, new Comment(" " + comment.Trim(' '), CommentType.Documentation), Roles.Comment);
					}
					node.Parent.InsertChildBefore(node, new Comment(" </summary>", CommentType.Documentation), Roles.Comment);
				}
			}
		}

		public static void InsertHeader(SyntaxTree syntaxTree)
		{
			var lines = new[]
				{
					"WARNING - AUTOGENERATED - DO NOT EDIT",
					"",
					"Generated using `sharpie urho`",
					"",
					syntaxTree.FileName,
					"",
					"Copyright 2015 Xamarin Inc. All rights reserved.\n",
				};
			foreach (var line in lines)
				syntaxTree.Members.Add(new Comment(" " + line));
		}
	}
}