using BS.SharedLauncher.DataContract;
using BS.SharedLauncher.Update;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BS.SharedLauncher.Extensions
{
    public static class PlanerPackageExtension
    {
        public static bool ContainsPlanerFile(this UpdatePlanDC planerPackageInfo, UpdateFileDC file2)
        {
            return planerPackageInfo.Files.FirstOrDefault(file => file.RelativePath == file2.RelativePath) is object;
        }
        public static bool ContainsPlanerFileWithHash(this UpdatePlanDC planerPackageInfo, UpdateFileDC file2)
        {
            return planerPackageInfo.Files.FirstOrDefault(file => file.RelativePath == file2.RelativePath && file.Checksum == file2.Checksum) is object;
        }
        public static bool AnyFile(this UpdatePlanDC planerPackageInfo)
        {
            if (planerPackageInfo.Files is null)
                return false;

            return planerPackageInfo.Files.Any();
        }

        public static UpdateFileDC FindPlanerFile(this UpdatePlanDC planerFileInfo, string relative)
        {
            return planerFileInfo.Files.Find(x => x.RelativePath == relative);
        }
        public static UpdateFileDC FirstOrDefaultPlanerFile(this UpdatePlanDC planerFileInfo, string relative)
        {
            return planerFileInfo.Files.FirstOrDefault(x => x.RelativePath == relative);
        }
        public static UpdateFileDC FirstOrDefaultPlanerFile(this UpdatePlanDC planerFileInfo, UpdateFileDC file)
        {
            return planerFileInfo.Files.FirstOrDefault(x => x.EqualsFile(file));
        }

        public static void InitFiles(this UpdatePlanDC planerFileInfo, List<UpdateFileDC> files)
        {
            planerFileInfo.Files = new List<UpdateFileDC>();
            planerFileInfo.Files.AddRange(files);
        }
        private static void OverrideOrAddFile(this UpdatePlanDC planerFileInfo, UpdateFileDC newFile)
        {
            var oldFile = planerFileInfo.FirstOrDefaultPlanerFile(newFile.RelativePath);

            if (oldFile is object)
                oldFile.AbsolutePath = newFile.AbsolutePath;
            else
                planerFileInfo.Files.Add(newFile);
            //oldFile.Source = newFile.Source;
        }
        public static void OverrideOrAddFiles(this UpdatePlanDC planerFileInfo, List<UpdateFileDC> files)
        {
            files.ForEach(x => planerFileInfo.OverrideOrAddFile(x));
        }
        public static void TryRemoveFile(this UpdatePlanDC planerFileInfo, UpdateFileDC file)
        {
            var minuend = planerFileInfo.FirstOrDefaultPlanerFile(file);

            if (minuend is UpdateFileDC)
            {
                planerFileInfo.RemoveFile(minuend);
            }
        }
        public static void RemoveFile(this UpdatePlanDC planerFileInfo, UpdateFileDC file)
        {
            planerFileInfo.Files.Remove(file);
        }
        public static void RemoveFileAt(this UpdatePlanDC planerFileInfo, int index)
        {
            planerFileInfo.Files.RemoveAt(index);
        }
        public static void SubstractFiles(this UpdatePlanDC planerPackageInfo, List<UpdateFileDC> files)
        {
            files.ForEach(f => planerPackageInfo.TryRemoveFile(f));
        }

        public static void LoadHash(this UpdatePlanDC planer) => planer.Files.ForEach(file => file.LoadHash());
    }
}