#region Copyright & License Information
/*
 * Copyright (c) The OpenRA Developers and Contributors
 * This file is part of OpenRA, which is free software. It is made
 * available to you under the terms of the GNU General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version. For more
 * information, see COPYING.
 */
#endregion

using System;
using System.Collections.Generic;
using System.IO;
using ICSharpCode.SharpZipLib.Zip;
using OpenRA.Mods.Common.Widgets.Logic;
using FS = OpenRA.FileSystem.FileSystem;

namespace OpenRA.Mods.Common.Installer
{
	public class ExtractZipSourceAction : ISourceAction
	{
		public void RunActionOnSource(MiniYaml actionYaml, string path, ModData modData, List<string> extracted,
			Action<string> updateMessage)
		{
			var zipPath = actionYaml.Value.StartsWith('^')
				? Platform.ResolvePath(actionYaml.Value)
				: FS.ResolveCaseInsensitivePath(Path.Combine(path, actionYaml.Value));

			using (var zipFile = new ZipFile(File.OpenRead(zipPath)))
			{
				foreach (var node in actionYaml.Nodes)
				{
					var targetPath = Platform.ResolvePath(node.Key);
					var sourcePath = node.Value.Value;
					var displayFilename = Path.GetFileName(targetPath);

					if (File.Exists(targetPath))
					{
						Log.Write("install", "Skipping installed file " + targetPath);
						continue;
					}

					Log.Write("install", $"Extracting {sourcePath} -> {targetPath}");

					Directory.CreateDirectory(Path.GetDirectoryName(targetPath));

					var sourceStream = zipFile.GetInputStream(zipFile.GetEntry(sourcePath));
					using (var targetStream = File.OpenWrite(targetPath))
						sourceStream.CopyTo(targetStream);

					updateMessage(FluentProvider.GetMessage(InstallFromSourceLogic.ExtractingProgress,
						"filename", displayFilename,
						"progress", 100));

					extracted.Add(targetPath);
				}
			}
		}
	}
}