// Decompiled with JetBrains decompiler
// Type: Rei.Fs.AutoSplitFs
// Assembly: Rei.Fs, Version=1.13.2.8796, Culture=neutral, PublicKeyToken=null
// MVID: D8B08A8B-697C-4439-9CFF-1BE4EE46F7B0
// Assembly location: F:\Eigene Dateien\Dropbox\portable Collection\Progs\CarotDAV\Rei.Fs.dll

using Microsoft.VisualBasic.CompilerServices;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;

namespace Rei.Fs
{
  public class AutoSplitFs : FsBase
  {
    private FsBase basefs;
    private string EscapeString;
    public long SplitSize;

    public AutoSplitFs(FsBase @base, long size, string escape)
      : base(@base.ConnectionSetting)
    {
      if (size <= 0L)
        throw new ArgumentOutOfRangeException(nameof (size));
      this.basefs = @base;
      this.SplitSize = size;
      this.EscapeString = escape;
      this.basefs.LogMessage += new EventHandler<LogMessageEventArgs>(this.InnerOnLogMessage);
    }

    private void InnerOnLogMessage(object sender, LogMessageEventArgs e)
    {
      this.OnLogMessage(e.Message);
    }

    public override SecureType LastSecureType
    {
      get
      {
        return this.basefs.LastSecureType;
      }
    }

    public override string ClientName
    {
      get
      {
        return this.basefs.ClientName;
      }
      set
      {
        this.basefs.ClientName = value;
      }
    }

    public override string GroupName
    {
      get
      {
        return this.basefs.GroupName;
      }
      set
      {
        this.basefs.GroupName = value;
      }
    }

    public override string UserName
    {
      get
      {
        return this.basefs.UserName;
      }
    }

    public override string Password
    {
      get
      {
        return this.basefs.Password;
      }
    }

    public override FsAbility Ability
    {
      get
      {
        return (this.basefs.Ability | FsAbility.PartialRead | FsAbility.PartialWrite) & ~FsAbility.Lock;
      }
    }

    public override void ResetConnection()
    {
      this.basefs.ResetConnection();
      base.ResetConnection();
    }

    public override ResourceInfo GetInfo(Uri targeturi)
    {
      ResourceInfo info = this.basefs.GetInfo(targeturi);
      if (info.IsCollection)
      {
        info.Id = (ResourceId) new AutoSplitFs.SplitId(info.Id, this);
        return info;
      }
      AutoSplitFs.SplitId splitId = new AutoSplitFs.SplitId(info.Id, this);
      ResourceInfo[] parentInfoAndEntries = this.GetParentInfoAndEntries((ResourceId) splitId);
      int num1 = 1;
      int num2 = checked (parentInfoAndEntries.Length - 1);
      int index = num1;
      while (index <= num2)
      {
        if ((ResourceId) splitId == parentInfoAndEntries[index].Id)
          return parentInfoAndEntries[index];
        checked { ++index; }
      }
      throw new RemoteResourceNotFoundException(targeturi);
    }

    public override ResourceInfo GetInfo(ResourceId id)
    {
      AutoSplitFs.SplitId splitId = (AutoSplitFs.SplitId) id;
      if (splitId.IsCollection)
      {
        ResourceInfo info = this.basefs.GetInfo(splitId.BaseId);
        if (info.IsCollection)
        {
          info.Id = (ResourceId) new AutoSplitFs.SplitId(info.Id, this);
          return info;
        }
      }
      ResourceInfo[] parentInfoAndEntries = this.GetParentInfoAndEntries((ResourceId) splitId);
      int num1 = 1;
      int num2 = checked (parentInfoAndEntries.Length - 1);
      int index = num1;
      while (index <= num2)
      {
        if ((ResourceId) splitId == parentInfoAndEntries[index].Id)
          return parentInfoAndEntries[index];
        checked { ++index; }
      }
      throw new RemoteResourceNotFoundException(splitId.Uri);
    }

    public override ResourceInfo GetInfo(ResourceId parentid, string name)
    {
      AutoSplitFs.SplitId splitId = (AutoSplitFs.SplitId) parentid;
      ResourceInfo[] infoAndEntries = this.GetInfoAndEntries((ResourceId) splitId);
      Uri uri = UriUtil.CombineName(splitId.Uri, name);
      Uri u1 = UriUtil.AddLastSlash(uri);
      int num1 = 1;
      int num2 = checked (infoAndEntries.Length - 1);
      int index = num1;
      while (index <= num2)
      {
        if (UriUtil.UriEquals(uri, infoAndEntries[index].Id.Uri, this.basefs.IsCaseSensitiveFs) || UriUtil.UriEquals(u1, infoAndEntries[index].Id.Uri, this.basefs.IsCaseSensitiveFs))
          return infoAndEntries[index];
        checked { ++index; }
      }
      throw new RemoteResourceNotFoundException(uri);
    }

    public override ResourceInfo[] GetEntries(ResourceId id)
    {
      return this.InnerCombineList(this.basefs.GetEntries(((AutoSplitFs.SplitId) id).BaseId));
    }

    public override ResourceInfo[] GetInfoAndEntries(Uri targeturi)
    {
      ResourceInfo[] infoAndEntries = this.basefs.GetInfoAndEntries(targeturi);
      if (infoAndEntries[0].IsCollection)
        return this.InnerCombineList(infoAndEntries);
      ResourceId id = infoAndEntries[0].Id;
      ResourceInfo[] resourceInfoArray = this.InnerCombineList(this.basefs.GetParentInfoAndEntries(id));
      int num1 = 1;
      int num2 = checked (resourceInfoArray.Length - 1);
      int index = num1;
      while (index <= num2)
      {
        if (id == resourceInfoArray[index].Id)
          return new ResourceInfo[1]
          {
            resourceInfoArray[index]
          };
        checked { ++index; }
      }
      throw new RemoteResourceNotFoundException(targeturi);
    }

    public override ResourceInfo[] GetInfoAndEntries(ResourceId id)
    {
      AutoSplitFs.SplitId splitId = (AutoSplitFs.SplitId) id;
      if (splitId.IsCollection)
        return this.InnerCombineList(this.basefs.GetInfoAndEntries(splitId.BaseId));
      return new ResourceInfo[1]
      {
        this.GetInfo((ResourceId) splitId)
      };
    }

    public override ResourceInfo[] GetParentInfoAndEntries(ResourceId childid)
    {
      return this.InnerCombineList(this.basefs.GetParentInfoAndEntries(((AutoSplitFs.SplitId) childid).BaseId));
    }

    private ResourceInfo[] InnerCombineList(ResourceInfo[] ris)
    {
      List<ResourceInfo> resourceInfoList = new List<ResourceInfo>();
      List<int> intList1 = new List<int>();
      List<int> intList2 = new List<int>();
      int num1 = 0;
      int num2 = checked (ris.Length - 1);
      int index1 = num1;
      while (index1 <= num2)
      {
        if (ris[index1].IsCollection)
        {
          ris[index1].Id = (ResourceId) new AutoSplitFs.SplitId(ris[index1].Id, this);
          resourceInfoList.Add(ris[index1]);
        }
        else
        {
          string lastName1 = UriUtil.GetLastName(ris[index1].Id.Uri);
          int num3 = lastName1.LastIndexOf(this.EscapeString);
          int result;
          if (num3 >= 0 && checked (num3 + this.EscapeString.Length) < lastName1.Length && (int.TryParse(lastName1.Substring(checked (num3 + this.EscapeString.Length)), out result) && result >= 1))
          {
            intList1.Add(index1);
          }
          else
          {
            ResourceInfo ri = ris[index1];
            string lastName2 = UriUtil.GetLastName(ri.Id.Uri);
            ri.Id = (ResourceId) new AutoSplitFs.SplitId(ri.Id, this);
            result = 1;
label_6:
            string Right = lastName2 + this.EscapeString + result.ToString();
            int num4 = 0;
            int num5 = checked (ris.Length - 1);
            int index2 = num4;
            while (index2 <= num5)
            {
              if (!ris[index2].IsCollection && Operators.CompareString(UriUtil.GetLastName(ris[index2].Id.Uri), Right, false) == 0)
              {
                if (ris[index2].HasError)
                  ri.HasError = true;
                if (ri.Size >= 0L)
                {
                  if (ris[index2].Size < 0L)
                  {
                    ri.Size = -1L;
                  }
                  else
                  {
                    ResourceInfo resourceInfo = ri;
                    resourceInfo.Size = checked (resourceInfo.Size + ris[index2].Size);
                  }
                }
                intList2.Add(index2);
                checked { ++result; }
                goto label_6;
              }
              else
                checked { ++index2; }
            }
            if (result > 1)
              ri.IsSplitted = true;
            resourceInfoList.Add(ri);
          }
        }
        checked { ++index1; }
      }
      int num6 = 0;
      int num7 = checked (intList2.Count - 1);
      int index3 = num6;
      while (index3 <= num7)
      {
        int index2 = intList1.IndexOf(intList2[index3]);
        if (index2 >= 0)
          intList1.RemoveAt(index2);
        checked { ++index3; }
      }
      int num8 = 0;
      int num9 = checked (intList1.Count - 1);
      int index4 = num8;
      while (index4 <= num9)
      {
        ResourceInfo ri = ris[intList1[index4]];
        ri.Id = (ResourceId) new AutoSplitFs.SplitId(ri.Id, this);
        ri.IsMinor = true;
        resourceInfoList.Add(ri);
        checked { ++index4; }
      }
      ris = resourceInfoList.ToArray();
      return ris;
    }

    public override ReturnedInfo CreateCollection(ResourceId parentid, string name)
    {
      ReturnedInfo collection = this.basefs.CreateCollection(((AutoSplitFs.SplitId) parentid).BaseId, name);
      ResourceInfo resourceInfo1 = collection as ResourceInfo;
      if (resourceInfo1 == null)
        return (ReturnedInfo) new AutoSplitFs.SplitId(collection as ResourceId, this);
      ResourceId resourceId = (ResourceId) new AutoSplitFs.SplitId(resourceInfo1.Id, this);
      ResourceInfo resourceInfo2 = (ResourceInfo) resourceInfo1.Clone();
      resourceInfo1.Id = resourceId;
      return (ReturnedInfo) resourceInfo1;
    }

    public override void Delete(ResourceId id)
    {
      AutoSplitFs.SplitId splitId = (AutoSplitFs.SplitId) id;
      ResourceInfo resourceInfo = (ResourceInfo) null;
      ResourceInfo[] parentInfoAndEntries = this.basefs.GetParentInfoAndEntries(splitId.BaseId);
      int num1 = 1;
      int num2 = checked (parentInfoAndEntries.Length - 1);
      int index1 = num1;
      while (index1 <= num2)
      {
        if (parentInfoAndEntries[index1].Id == splitId.BaseId)
        {
          resourceInfo = parentInfoAndEntries[index1];
          break;
        }
        checked { ++index1; }
      }
      if (resourceInfo == null)
        throw new RemoteResourceNotFoundException(splitId.Uri);
      this.basefs.Delete(resourceInfo.Id);
      if (resourceInfo.IsCollection)
        return;
      try
      {
        int num3 = 1;
        string name = splitId.Name;
label_9:
        Uri u2 = UriUtil.CombineName(splitId.Parent, name + this.EscapeString + num3.ToString());
        int num4 = 1;
        int num5 = checked (parentInfoAndEntries.Length - 1);
        int index2 = num4;
        while (index2 <= num5)
        {
          if (!parentInfoAndEntries[index2].IsCollection && UriUtil.UriEquals(parentInfoAndEntries[index2].Id.Uri, u2, this.basefs.IsCaseSensitiveFs))
          {
            this.basefs.Delete(parentInfoAndEntries[index2].Id);
            checked { ++num3; }
            goto label_9;
          }
          else
            checked { ++index2; }
        }
      }
      catch (Exception ex)
      {
        ProjectData.SetProjectError(ex);
        Exception innerexception = ex;
        throw new InconsistencyDetectedException(splitId.Uri, "Exception occurred in undivisable operation.", innerexception);
      }
    }

    public override ReturnedInfo Move(ResourceId id, ResourceId newparentid, string newname, bool overwrite)
    {
      AutoSplitFs.SplitId splitId1 = (AutoSplitFs.SplitId) id;
      AutoSplitFs.SplitId splitId2 = (AutoSplitFs.SplitId) newparentid;
      ResourceId newparentid1 = (object) newparentid != null ? splitId2.BaseId : (ResourceId) null;
      ResourceInfo resourceInfo = (ResourceInfo) null;
      ResourceInfo[] parentInfoAndEntries = this.basefs.GetParentInfoAndEntries(splitId1.BaseId);
      int num1 = 1;
      int num2 = checked (parentInfoAndEntries.Length - 1);
      int index1 = num1;
      while (index1 <= num2)
      {
        if (parentInfoAndEntries[index1].Id == splitId1.BaseId)
        {
          resourceInfo = parentInfoAndEntries[index1];
          break;
        }
        checked { ++index1; }
      }
      if (resourceInfo == null)
        throw new RemoteResourceNotFoundException(splitId1.Uri);
      ReturnedInfo returnedInfo = this.basefs.Move(resourceInfo.Id, newparentid1, newname, overwrite);
      AutoSplitFs.SplitId splitId3 = !(returnedInfo is ResourceInfo) ? new AutoSplitFs.SplitId((ResourceId) returnedInfo, this) : new AutoSplitFs.SplitId(((ResourceInfo) returnedInfo).Id, this);
      if (!resourceInfo.IsCollection)
      {
        try
        {
          int num3 = 1;
          string name = splitId1.Name;
label_9:
          Uri u2 = UriUtil.CombineName(splitId1.Parent, name + this.EscapeString + num3.ToString());
          int num4 = 1;
          int num5 = checked (parentInfoAndEntries.Length - 1);
          int index2 = num4;
          while (index2 <= num5)
          {
            if (!parentInfoAndEntries[index2].IsCollection && UriUtil.UriEquals(parentInfoAndEntries[index2].Id.Uri, u2, this.basefs.IsCaseSensitiveFs))
            {
              string newname1 = newname != null ? newname + this.EscapeString + num3.ToString() : (string) null;
              this.basefs.Move(parentInfoAndEntries[index2].Id, newparentid1, newname1, overwrite);
              checked { ++num3; }
              goto label_9;
            }
            else
              checked { ++index2; }
          }
        }
        catch (Exception ex)
        {
          ProjectData.SetProjectError(ex);
          Exception innerexception = ex;
          throw new InconsistencyDetectedException(splitId1.Uri, "Exception occurred in undivisable operation.", innerexception);
        }
      }
      return (ReturnedInfo) splitId3;
    }

    public override ReturnedInfo Copy(ResourceId id, ResourceId newparentid, string newname, bool overwrite)
    {
      AutoSplitFs.SplitId splitId1 = (AutoSplitFs.SplitId) id;
      AutoSplitFs.SplitId splitId2 = (AutoSplitFs.SplitId) newparentid;
      ResourceId newparentid1 = (object) newparentid != null ? splitId2.BaseId : (ResourceId) null;
      ResourceInfo resourceInfo = (ResourceInfo) null;
      ResourceInfo[] parentInfoAndEntries = this.basefs.GetParentInfoAndEntries(splitId1.BaseId);
      int num1 = 1;
      int num2 = checked (parentInfoAndEntries.Length - 1);
      int index1 = num1;
      while (index1 <= num2)
      {
        if (parentInfoAndEntries[index1].Id == splitId1.BaseId)
        {
          resourceInfo = parentInfoAndEntries[index1];
          break;
        }
        checked { ++index1; }
      }
      if (resourceInfo == null)
        throw new RemoteResourceNotFoundException(splitId1.Uri);
      ReturnedInfo returnedInfo = this.basefs.Copy(resourceInfo.Id, newparentid1, newname, overwrite);
      AutoSplitFs.SplitId splitId3 = !(returnedInfo is ResourceInfo) ? new AutoSplitFs.SplitId((ResourceId) returnedInfo, this) : new AutoSplitFs.SplitId(((ResourceInfo) returnedInfo).Id, this);
      if (!resourceInfo.IsCollection)
      {
        try
        {
          int num3 = 1;
          string name = splitId1.Name;
label_9:
          Uri u2 = UriUtil.CombineName(splitId1.Parent, name + this.EscapeString + num3.ToString());
          int num4 = 1;
          int num5 = checked (parentInfoAndEntries.Length - 1);
          int index2 = num4;
          while (index2 <= num5)
          {
            if (!parentInfoAndEntries[index2].IsCollection && UriUtil.UriEquals(parentInfoAndEntries[index2].Id.Uri, u2, this.basefs.IsCaseSensitiveFs))
            {
              string newname1 = newname != null ? newname + this.EscapeString + num3.ToString() : (string) null;
              this.basefs.Copy(parentInfoAndEntries[index2].Id, newparentid1, newname1, overwrite);
              checked { ++num3; }
              goto label_9;
            }
            else
              checked { ++index2; }
          }
        }
        catch (Exception ex)
        {
          ProjectData.SetProjectError(ex);
          Exception innerexception = ex;
          throw new InconsistencyDetectedException(splitId1.Uri, "Exception occurred in undivisable operation.", innerexception);
        }
      }
      return (ReturnedInfo) splitId3;
    }

    public override ReturnedInfo SetTimes(ResourceId id, DateTime lastmodifiedtime, DateTime creationtime, DateTime lastaccesstime)
    {
      return this.basefs.SetTimes(((AutoSplitFs.SplitId) id).BaseId, lastmodifiedtime, creationtime, lastaccesstime);
    }

    public override ReturnedInfo SetResourceInfo(ResourceInfo info, ResourceInfo original)
    {
      ResourceInfo resourceInfo = (ResourceInfo) original.Clone();
      resourceInfo.Id = ((AutoSplitFs.SplitId) resourceInfo.Id).BaseId;
      return this.basefs.SetResourceInfo(info, original);
    }

    public override Stream OpenRead(ResourceId id, ref long start, ref long length)
    {
      AutoSplitFs.SplitId id1 = (AutoSplitFs.SplitId) id;
      if (start < 0L)
        throw new ArgumentOutOfRangeException(nameof (start));
      if (length == 0L)
        throw new ArgumentOutOfRangeException(nameof (length));
      return (Stream) new AutoSplitFs.CombinedReadStream(this, id1, ref start, ref length);
    }

    public override Stream OpenWrite(ResourceId parentid, string name, long length)
    {
      AutoSplitFs.SplitId parentid1 = (AutoSplitFs.SplitId) parentid;
      int num = name.IndexOf(this.EscapeString);
      int result;
      if (num >= 0 && checked (num + this.EscapeString.Length) < name.Length && (int.TryParse(name.Substring(checked (num + this.EscapeString.Length)), out result) && result >= 1))
        throw new ArgumentException("Invalid name");
      return (Stream) new AutoSplitFs.CombinedWriteStream(this, parentid1, name, length, this.SplitSize);
    }

    public override Stream OpenWriteOver(ResourceId id, long length)
    {
      AutoSplitFs.SplitId splitId = (AutoSplitFs.SplitId) id;
      int num = splitId.Name.IndexOf(this.EscapeString);
      int result;
      if (num >= 0 && checked (num + this.EscapeString.Length) < splitId.Name.Length && (int.TryParse(splitId.Name.Substring(checked (num + this.EscapeString.Length)), out result) && result >= 1))
        throw new ArgumentException("Invalid name");
      AutoSplitFs.SplitId id1 = splitId;
      long start = 0;
      long splitSize = this.SplitSize;
      return (Stream) new AutoSplitFs.CombinedWriteStream(this, id1, ref start, ref length, splitSize);
    }

    public override Stream OpenWriteResume(ResourceId id, ref long start, ref long length)
    {
      AutoSplitFs.SplitId id1 = (AutoSplitFs.SplitId) id;
      if (start < 0L)
        throw new ArgumentOutOfRangeException(nameof (start));
      return (Stream) new AutoSplitFs.CombinedWriteStream(this, id1, ref start, ref length, this.SplitSize);
    }

    public override ReturnedInfo CloseWrite(Stream st)
    {
      st.Close();
      return (ReturnedInfo) ((AutoSplitFs.CombinedWriteStream) st).Id;
    }

    public override string GetLock(ResourceId id, string owner, int timeoutseconds, FsBase.LockScope scope)
    {
      throw new NotImplementedException();
    }

    public override void ReleaseLock(ResourceId id, string locktoken)
    {
      throw new NotImplementedException();
    }

    private class CombinedReadStream : Stream
    {
      private AutoSplitFs pFs;
      private AutoSplitFs.SplitId pId;
      private int pSplitIndex;
      private long pLength;
      private long pPosition;
      private Stream pCurrentStream;

      public CombinedReadStream(AutoSplitFs fs, AutoSplitFs.SplitId id, ref long start, ref long length)
      {
        this.pFs = fs;
        this.pSplitIndex = 0;
        long num1 = 0;
        this.pId = id;
        ResourceId id1 = this.pId.BaseId;
        if (start > 0L)
        {
          ResourceInfo resourceInfo = (ResourceInfo) null;
          ResourceInfo[] parentInfoAndEntries = this.pFs.basefs.GetParentInfoAndEntries(this.pId.BaseId);
          int num2 = 1;
          int num3 = checked (parentInfoAndEntries.Length - 1);
          int index1 = num2;
          while (index1 <= num3)
          {
            if (parentInfoAndEntries[index1].Id == this.pId.BaseId)
            {
              resourceInfo = parentInfoAndEntries[index1];
              break;
            }
            checked { ++index1; }
          }
          if (resourceInfo == null)
            throw new RemoteResourceNotFoundException(this.pId.Uri);
          if (resourceInfo.Size >= 0L && start >= resourceInfo.Size)
          {
            this.pSplitIndex = checked (this.pSplitIndex + 1);
            checked { num1 += resourceInfo.Size; }
            string name = this.pId.Name;
label_10:
            Uri u2 = UriUtil.CombineName(this.pId.Parent, name + this.pFs.EscapeString + this.pSplitIndex.ToString());
            int num4 = 1;
            int num5 = checked (parentInfoAndEntries.Length - 1);
            int index2 = num4;
            while (index2 <= num5)
            {
              if (!parentInfoAndEntries[index2].IsCollection && UriUtil.UriEquals(parentInfoAndEntries[index2].Id.Uri, u2, this.pFs.basefs.IsCaseSensitiveFs))
              {
                if (parentInfoAndEntries[index2].Size >= 0L && start >= checked (num1 + parentInfoAndEntries[index2].Size))
                {
                  this.pSplitIndex = checked (this.pSplitIndex + 1);
                  checked { num1 += parentInfoAndEntries[index2].Size; }
                  goto label_10;
                }
                else
                {
                  id1 = parentInfoAndEntries[index2].Id;
                  goto label_18;
                }
              }
              else
                checked { ++index2; }
            }
            throw new InvalidRangeException();
          }
        }
label_18:
        long start1 = 0;
        if ((this.pFs.basefs.Ability & FsAbility.PartialRead) != FsAbility.None)
          start1 = checked (start - num1);
        long length1 = -1;
        this.pCurrentStream = this.pFs.basefs.OpenRead(id1, ref start1, ref length1);
        if (length >= 0L)
          length = checked (length + start - num1 - start1);
        start = checked (start1 + num1);
        if (length >= 0L)
        {
          if (length1 > length)
            length = length1;
          if (length1 < 0L)
            length = -1L;
          if (length1 >= 0L && length > length1)
            length = -1L;
        }
        this.pPosition = 0L;
        this.pLength = length;
      }

      public override bool CanRead
      {
        get
        {
          return true;
        }
      }

      public override bool CanSeek
      {
        get
        {
          return false;
        }
      }

      public override bool CanWrite
      {
        get
        {
          return false;
        }
      }

      public override long Length
      {
        get
        {
          return this.pLength;
        }
      }

      public override long Position
      {
        get
        {
          return this.pPosition;
        }
        set
        {
          throw new NotSupportedException();
        }
      }

      public override void SetLength(long value)
      {
        throw new NotSupportedException();
      }

      public override long Seek(long offset, SeekOrigin origin)
      {
        throw new NotSupportedException();
      }

      public override void Write(byte[] buffer, int offset, int count)
      {
        throw new NotSupportedException();
      }

      public override void Flush()
      {
        if (this.pCurrentStream == null)
          return;
        this.pCurrentStream.Flush();
      }

      public override int Read(byte[] buffer, int offset, int count)
      {
        if (this.pCurrentStream == null)
          throw new ObjectDisposedException(this.GetType().FullName);
        if (this.pLength >= 0L && checked (this.pPosition + (long) count) > this.pLength)
          count = checked ((int) (this.pLength - this.pPosition));
        if (count < 0)
          throw new ArgumentOutOfRangeException(nameof (count));
        if (count == 0)
          return 0;
        int num1;
        int num2;
        while (true)
        {
          num1 = this.pCurrentStream.Read(buffer, offset, count);
          if (num1 <= 0)
          {
            this.pCurrentStream.Close();
            this.pSplitIndex = checked (this.pSplitIndex + 1);
            Uri targeturi = UriUtil.CombineName(this.pId.Parent, this.pId.Name + this.pFs.EscapeString + this.pSplitIndex.ToString());
            try
            {
              this.pCurrentStream = this.pFs.basefs.OpenRead(targeturi);
            }
            catch (RemoteResourceNotFoundException ex)
            {
              ProjectData.SetProjectError((Exception) ex);
              RemoteResourceNotFoundException notFoundException = ex;
              if (this.pLength >= 0L)
                throw new InvalidRangeException((Exception) notFoundException);
              num2 = 0;
              ProjectData.ClearProjectError();
              goto label_16;
            }
          }
          else
            break;
        }
        this.pPosition = checked (this.pPosition + (long) num1);
        return num1;
label_16:
        return num2;
      }

      protected override void Dispose(bool disposing)
      {
        try
        {
          if (!disposing || this.pCurrentStream == null)
            return;
          this.pCurrentStream.Close();
          this.pCurrentStream = (Stream) null;
        }
        finally
        {
          base.Dispose(disposing);
        }
      }
    }

    private class CombinedWriteStream : Stream
    {
      private AutoSplitFs pFs;
      public AutoSplitFs.SplitId pId;
      private string pName;
      private ResourceId pParentId;
      private int pSplitIndex;
      private long pSplitSize;
      private long pLength;
      private long pPosition;
      private long pCurrentLength;
      private long pCurrentPosition;
      private Stream pCurrentStream;

      public CombinedWriteStream(AutoSplitFs fs, AutoSplitFs.SplitId parentid, string name, long length, long splitsize)
      {
        this.pFs = fs;
        this.pParentId = parentid.BaseId;
        this.pName = name;
        this.pSplitSize = splitsize;
        this.pSplitIndex = 0;
        this.pId = (AutoSplitFs.SplitId) null;
        this.pPosition = 0L;
        this.pLength = length;
        this.DeleteFollowingFiles(this.pFs.basefs.GetEntries(this.pParentId), 0);
        this.pCurrentLength = this.pLength >= 0L ? (checked (this.pLength - this.pPosition) > this.pSplitSize ? this.pSplitSize : checked (this.pLength - this.pPosition)) : -1L;
        this.pCurrentStream = this.pFs.basefs.OpenWrite(this.pParentId, this.pName, this.pCurrentLength);
        this.pCurrentPosition = 0L;
      }

      public CombinedWriteStream(AutoSplitFs fs, AutoSplitFs.SplitId id, ref long start, ref long length, long splitsize)
      {
        this.pFs = fs;
        this.pName = UriUtil.GetLastName(id.BaseId.Uri);
        this.pSplitSize = splitsize;
        ResourceInfo[] parentInfoAndEntries = this.pFs.basefs.GetParentInfoAndEntries(id.BaseId);
        this.pParentId = parentInfoAndEntries[0].Id;
        ResourceInfo resourceInfo = (ResourceInfo) null;
        int num1 = 1;
        int num2 = checked (parentInfoAndEntries.Length - 1);
        int index1 = num1;
        while (index1 <= num2)
        {
          if (parentInfoAndEntries[index1].Id == id.BaseId)
          {
            resourceInfo = parentInfoAndEntries[index1];
            break;
          }
          checked { ++index1; }
        }
        if (resourceInfo == null)
          throw new RemoteResourceNotFoundException(id.Uri);
        long num3 = 0;
        this.pSplitIndex = 0;
        if (resourceInfo.Size >= 0L && start >= checked (resourceInfo.Size + num3))
        {
          if (resourceInfo.Size != 0L)
          {
            checked { num3 += resourceInfo.Size; }
            this.pId = new AutoSplitFs.SplitId(resourceInfo.Id, this.pFs);
            this.pSplitIndex = 1;
          }
          int num4 = 1;
label_11:
          Uri u2 = UriUtil.CombineName(this.pParentId.Uri, this.pName + this.pFs.EscapeString + num4.ToString());
          int num5 = 1;
          int num6 = checked (parentInfoAndEntries.Length - 1);
          int index2 = num5;
          while (index2 <= num6)
          {
            if (!parentInfoAndEntries[index2].IsCollection && UriUtil.UriEquals(parentInfoAndEntries[index2].Id.Uri, u2, fs.IsCaseSensitiveFs))
            {
              if (parentInfoAndEntries[index2].Size != 0L)
              {
                if (this.pId == null)
                  this.pId = new AutoSplitFs.SplitId(resourceInfo.Id, this.pFs);
                if (parentInfoAndEntries[index2].Size < 0L || start < checked (parentInfoAndEntries[index2].Size + num3))
                {
                  this.pSplitIndex = num4;
                  break;
                }
                checked { num3 += parentInfoAndEntries[index2].Size; }
                this.pSplitIndex = checked (num4 + 1);
              }
              checked { ++num4; }
              goto label_11;
            }
            else
              checked { ++index2; }
          }
        }
        if (length >= 0L)
          length = checked (length + start - num3);
        start = num3;
        this.pPosition = 0L;
        this.pLength = length;
        this.DeleteFollowingFiles(parentInfoAndEntries, 1);
        this.pCurrentLength = this.pLength >= 0L ? (checked (this.pLength - this.pPosition) > this.pSplitSize ? this.pSplitSize : checked (length - this.pPosition)) : -1L;
        this.pCurrentStream = this.pSplitIndex != 0 ? this.pFs.basefs.OpenWrite(this.pParentId, this.pName + this.pFs.EscapeString + this.pSplitIndex.ToString(), this.pCurrentLength) : this.pFs.basefs.OpenWrite(this.pParentId, this.pName, this.pCurrentLength);
        this.pCurrentPosition = 0L;
      }

      public override bool CanRead
      {
        get
        {
          return false;
        }
      }

      public override bool CanSeek
      {
        get
        {
          return false;
        }
      }

      public override bool CanWrite
      {
        get
        {
          return true;
        }
      }

      public override long Length
      {
        get
        {
          return this.pLength;
        }
      }

      public override long Position
      {
        get
        {
          return this.pPosition;
        }
        set
        {
          throw new NotSupportedException();
        }
      }

      public override void SetLength(long value)
      {
        throw new NotSupportedException();
      }

      public override long Seek(long offset, SeekOrigin origin)
      {
        throw new NotSupportedException();
      }

      public override int Read(byte[] buffer, int offset, int count)
      {
        throw new NotSupportedException();
      }

      public override void Flush()
      {
        if (this.pCurrentStream == null)
          return;
        this.pCurrentStream.Flush();
      }

      public override void Write(byte[] buffer, int offset, int count)
      {
        if (this.pCurrentStream == null)
          throw new ObjectDisposedException(this.GetType().FullName);
        if (count < 0)
          throw new ArgumentOutOfRangeException(nameof (count));
        if (offset < 0)
          throw new ArgumentOutOfRangeException(nameof (offset));
        if (this.pLength >= 0L && checked (this.pPosition + (long) count) > this.pLength)
          throw new ArgumentException("stream overflow", nameof (count));
        while (count != 0)
        {
          if (this.pCurrentPosition == this.pCurrentLength || this.pCurrentLength < 0L && this.pCurrentPosition == this.pSplitSize)
          {
            Stream pCurrentStream = this.pCurrentStream;
            this.pCurrentStream = (Stream) null;
            pCurrentStream.Close();
            ReturnedInfo returnedInfo = this.pFs.basefs.CloseWrite(pCurrentStream);
            ResourceId baseid = !(returnedInfo is ResourceInfo) ? (ResourceId) returnedInfo : ((ResourceInfo) returnedInfo).Id;
            if (this.pId == null)
              this.pId = new AutoSplitFs.SplitId(baseid, this.pFs);
            this.pSplitIndex = checked (this.pSplitIndex + 1);
            this.pCurrentLength = this.pLength >= 0L ? (checked (this.pLength - this.pPosition) > this.pSplitSize ? this.pSplitSize : checked (this.pLength - this.pPosition)) : -1L;
            this.pCurrentStream = this.pFs.basefs.OpenWrite(this.pParentId, this.pName + this.pFs.EscapeString + this.pSplitIndex.ToString(), this.pCurrentLength);
            this.pCurrentPosition = 0L;
          }
          int count1 = count;
          if (this.pCurrentLength < 0L)
          {
            if ((long) count1 > checked (this.pSplitSize - this.pCurrentPosition))
              count1 = checked ((int) (this.pSplitSize - this.pCurrentPosition));
          }
          else if ((long) count1 > checked (this.pCurrentLength - this.pCurrentPosition))
            count1 = checked ((int) (this.pCurrentLength - this.pCurrentPosition));
          this.pCurrentStream.Write(buffer, offset, count1);
          checked { count -= count1; }
          checked { offset += count1; }
          this.pCurrentPosition = checked (this.pCurrentPosition + (long) count1);
          this.pPosition = checked (this.pPosition + (long) count1);
        }
      }

      protected override void Dispose(bool disposing)
      {
        try
        {
          if (!disposing || this.pCurrentStream == null)
            return;
          Stream pCurrentStream = this.pCurrentStream;
          this.pCurrentStream = (Stream) null;
          pCurrentStream.Close();
          ReturnedInfo returnedInfo = this.pFs.basefs.CloseWrite(pCurrentStream);
          ResourceId baseid = !(returnedInfo is ResourceInfo) ? (ResourceId) returnedInfo : ((ResourceInfo) returnedInfo).Id;
          if (this.pId != null)
            return;
          this.pId = new AutoSplitFs.SplitId(baseid, this.pFs);
        }
        finally
        {
          base.Dispose(disposing);
        }
      }

      public ResourceId Id
      {
        get
        {
          return (ResourceId) this.pId;
        }
      }

      private void DeleteFollowingFiles(ResourceInfo[] ris, int startindex)
      {
        string str = this.pName + this.pFs.EscapeString;
        int num1 = startindex;
        int num2 = checked (ris.Length - 1);
        int index = num1;
        while (index <= num2)
        {
          if (!ris[index].IsCollection)
          {
            string lastName = UriUtil.GetLastName(ris[index].Id.Uri);
            int result;
            if (lastName.StartsWith(str) && int.TryParse(lastName.Substring(str.Length), NumberStyles.None, (IFormatProvider) null, out result))
            {
              if (result > this.pSplitIndex)
              {
                try
                {
                  this.pFs.basefs.Delete(ris[index].Id);
                }
                catch (RemoteResourceNotFoundException ex)
                {
                  ProjectData.SetProjectError((Exception) ex);
                  ProjectData.ClearProjectError();
                }
              }
            }
          }
          checked { ++index; }
        }
      }
    }

    [Serializable]
    public class SplitId : ResourceId
    {
      private ResourceId pBaseId;
      private List<ResourceId> pInnerIdList;

      public SplitId(ResourceId baseid, AutoSplitFs fs)
        : base(baseid.Uri, (FsBase) fs)
      {
        this.pInnerIdList = new List<ResourceId>();
        this.pBaseId = baseid;
        this.pInnerIdList.Add(baseid);
      }

      public ResourceId BaseId
      {
        get
        {
          return this.pBaseId;
        }
      }

      public string Name
      {
        get
        {
          return UriUtil.GetLastName(this.pBaseId.Uri);
        }
      }

      public Uri Parent
      {
        get
        {
          return UriUtil.GetParent(this.pBaseId.Uri);
        }
      }
    }
  }
}