using Flow.Launcher.Infrastructure.Http;
using ICSharpCode.SharpZipLib.Zip;
using System.IO;
using System.Net;

namespace Flow.Launcher.Plugin.PluginsManager
{
    internal static class Utilities
    {
        /// <summary>
        /// Unzip contents to the given directory.
        /// </summary>
        /// <param name="zipFilePath">The path to the zip file.</param>
        /// <param name="strDirectory">The output directory.</param>
        /// <param name="overwrite">overwrite</param>
        internal static void UnZip(string zipFilePath, string strDirectory, bool overwrite)
        {
            if (strDirectory == "")
                strDirectory = Directory.GetCurrentDirectory();

            using var zipStream = new ZipInputStream(File.OpenRead(zipFilePath));

            ZipEntry theEntry;

            while ((theEntry = zipStream.GetNextEntry()) != null)
            {
                var pathToZip = theEntry.Name;
                var directoryName = string.IsNullOrEmpty(pathToZip) ? "" : Path.GetDirectoryName(pathToZip);
                var fileName = Path.GetFileName(pathToZip);
                var destinationDir = Path.Combine(strDirectory, directoryName);
                var destinationFile = Path.Combine(destinationDir, fileName);

                Directory.CreateDirectory(destinationDir);

                if (string.IsNullOrEmpty(fileName) || (File.Exists(destinationFile) && !overwrite))
                    continue;

                using var streamWriter = File.Create(destinationFile);
                zipStream.CopyTo(streamWriter);
            }
        }

        internal static void Download(string downloadUrl, string toFilePath)
        {
            using var wc = new WebClient { Proxy = Http.WebProxy() };

            wc.DownloadFile(downloadUrl, toFilePath);
        }
    }
}