using System.Collections.Generic;
using PatcherShared;

namespace Differ {
	public class DiffToPatchfileEncoder {
		#region .ctor
		#endregion

		#region Methods

		public PatchFile Encode(IEnumerable<Difference> diffs) {
			PatchFile file = new PatchFile();

			foreach (var diff in diffs) {
				EncodeSingleDiff(diff, file);
			}

			return file;
		}

		private void EncodeSingleDiff(Difference diff, PatchFile file) {
			PatchFile.Action act;

			switch (diff.Difftype) {
				case DiffType.RedundantFile:
					act = new PatchFile.Action(file) {
					            Type = PatchFile.Action.ActionType.DeleteFile, ClientPath = diff.TargetPath
							};
					break;
				case DiffType.MissingFile:
					act = new PatchFile.Action(file) {
					            Type = PatchFile.Action.ActionType.AlterOrCreateFile, 
								ClientPath = diff.TargetPath
							};

					PatchFile.File f = new PatchFile.File(file) {
										FileName = diff.SourcePath
									};
					break;
				default:
					break;
			}
		}

		#endregion

		#region Properties
		#endregion

		#region Variables
		#endregion
	}
}