using BS.SharedLauncher.DataContract;
using BS.SharedLauncher.Information;
using BS.SharedLauncher.Update;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace BS.SharedLauncher.Extensions
{
    public static class PlanerFileExtension
    {
        public static bool ContainsPlanerFile(this List<UpdateFileDC> files, UpdateFileDC file2)
        {
            return files.FirstOrDefault(file => file.RelativePath == file2.RelativePath) is object;
        }
        public static bool ContainsPlanerFileWithHash(this List<UpdateFileDC> files, UpdateFileDC file2)
        {
            return files.FirstOrDefault(file => file.RelativePath == file2.RelativePath && file.Checksum == file2.Checksum) is object;
        }
        public static void LoadHash(this UpdateFileDC planerFileInfo)
        {
            using (var md5 = MD5.Create())
            {
                using (var stream = File.OpenRead(planerFileInfo.AbsolutePath))
                {
                    planerFileInfo.Checksum = BitConverter.ToString(md5.ComputeHash(stream)).Replace("-", "").ToLowerInvariant();
                }
            }
        }

        public static void Copy(this UpdateFileDC info) => new UpdateFileDC()
        {
            Name = info.Name,
            AbsolutePath = info.AbsolutePath,
            Checksum = info.Checksum,
            RelativePath = info.RelativePath
        };
        public static bool EqualsFile(this UpdateFileDC file, UpdateFileDC file2)
        {
            return (file.Checksum == file2.Checksum) &&
                (file.RelativePath == file2.RelativePath) &&
                (file.Name == file2.Name);
        }
        public static string GetExtensionType(this UpdateFileDC file)
        {
            return Path.GetExtension(file.AbsolutePath);
        }
        public static bool IsLockFile(this UpdateFileDC file)
        {
            return file.Name == BeWoPathFileConfig.LockFileName;
        }
        public static bool IsPackageInfo(this UpdateFileDC file)
        {
            return file.GetExtensionType() == BeWoPathFileConfig.DotBeWoInfo;
        }
        public static bool IgnoreFile(this UpdateFileDC file)
        {
            // Lock File Ignorieren
            if (file.IsLockFile())
                return true;

            // Package Info Ignorieren
            if (file.IsPackageInfo())
                return true;

            return false;
        }

        public static bool IgnoreToRemove(this UpdateFileDC file)
        {
            if (file.Name == BeWoPathFileConfig.LockFileName)
                return true;

            if (file.GetExtensionType() == BeWoPathFileConfig.DotBeWoInfo)
                return true;

            return false;
        }
    }
}