public SyncItem(string path1, string path2, SyncItemType itemType)
{
Path1 = path1;
Path2 = path2;
LastModified1 = DateTime.MinValue;
LastModified2 = DateTime.MinValue;
ItemType = itemType;
Action = GetAction();
Status = SyncItemStatus.NoActionRequired;
}
/// <summary>
/// Initializes a new instance of the <see cref="T:System.Object"/> class.
/// </summary>
public SyncItemStatusChangedEventArgs(SyncItemStatus newStatus, SyncItemContainer container)
{
NewStatus = newStatus;
ItemContainer = container;
}
public SyncActions GetAction()
{
if (ItemType == SyncItemType.File)
{
bool exists1 = LongFile.Exists(Path1);
bool exists2 = LongFile.Exists(Path2);
LastModified1 = exists1 ? LongFile.GetLastWriteTime(Path1) : DateTime.MinValue;
LastModified2 = exists2 ? LongFile.GetLastWriteTime(Path2) : DateTime.MinValue;
SyncedFile past1 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path1);
SyncedFile past2 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path2);
if (!exists1 && !exists2)
{
return(SyncActions.None);
}
else if (exists1 && !exists2)
{
if (past1 != null && past2 != null)
{
// File 2 has been deleted
Status = SyncItemStatus.ActionPending;
return(SyncActions.Delete1);
}
else
{
// File 1 is new
Status = SyncItemStatus.ActionPending;
return(SyncActions.CopyFrom1To2);
}
}
else if (!exists1 && exists2)
{
if (past1 != null && past2 != null)
{
// File 1 has been deleted
Status = SyncItemStatus.ActionPending;
return(SyncActions.Delete2);
}
else
{
// File 2 is new
Status = SyncItemStatus.ActionPending;
return(SyncActions.CopyFrom2To1);
}
}
else if (exists1 && exists2)
{
int comp = LastModified1.CompareTo(LastModified2);
int newest = comp > 0 ? 1 : comp < 0 ? 2 : 0;
bool changed1 = past1 == null || !LastModified1.Equals(past1.LastModified);
bool changed2 = past2 == null || !LastModified2.Equals(past2.LastModified);
if (changed1 && changed2)
{
if (newest == 1)
{
return(SyncActions.CopyFrom1To2);
}
if (newest == 2)
{
return(SyncActions.CopyFrom2To1);
}
return(SyncActions.None);
}
else if (changed1 && !changed2)
{
Status = SyncItemStatus.ActionPending;
return(SyncActions.CopyFrom1To2);
}
else if (!changed1 && changed2)
{
Status = SyncItemStatus.ActionPending;
return(SyncActions.CopyFrom2To1);
}
else if (!changed1 && !changed2)
{
return(SyncActions.None);
}
}
}
else if (ItemType == SyncItemType.Folder)
{
bool exists1 = LongDirectory.Exists(Path1);
bool exists2 = LongDirectory.Exists(Path2);
SyncedFile past1 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path1);
SyncedFile past2 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path2);
if (!exists1 && !exists2)
{
if (past1 != null || past2 != null)
{
return(SyncActions.None);
}
else
{
return(SyncActions.None);
}
}
else if (exists1 && exists2)
{
return(SyncActions.None);
}
else if (exists1 && !exists2)
{
if (past2 != null)
{
Status = SyncItemStatus.ActionPending;
return(SyncActions.Delete1);
}
else
{
Status = SyncItemStatus.ActionPending;
return(SyncActions.CopyFrom1To2);
}
}
else if (!exists1 && exists2)
{
if (past1 != null)
{
Status = SyncItemStatus.ActionPending;
return(SyncActions.Delete2);
}
else
{
Status = SyncItemStatus.ActionPending;
return(SyncActions.CopyFrom2To1);
}
}
}
return(SyncActions.None);
}
public void DoAction()
{
try
{
if (ItemType == SyncItemType.Folder)
{
SyncedFile past1 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path1);
SyncedFile past2 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path2);
if (Action == SyncActions.CopyFrom1To2)
{
if (!LongDirectory.Exists(Path2))
{
LongDirectory.CreateDirectory(Path2);
}
if (past1 == null)
{
MainDbContext.DB.SyncedFiles.Add(new SyncedFile()
{
LastModified = DateTime.MinValue, Path = Path1
});
}
if (past2 == null)
{
MainDbContext.DB.SyncedFiles.Add(new SyncedFile()
{
LastModified = DateTime.MinValue, Path = Path2
});
}
Status = SyncItemStatus.ActionOK;
}
else if (Action == SyncActions.CopyFrom2To1)
{
if (!LongDirectory.Exists(Path1))
{
LongDirectory.CreateDirectory(Path1);
}
if (past1 == null)
{
MainDbContext.DB.SyncedFiles.Add(new SyncedFile()
{
LastModified = DateTime.MinValue, Path = Path1
});
}
if (past2 == null)
{
MainDbContext.DB.SyncedFiles.Add(new SyncedFile()
{
LastModified = DateTime.MinValue, Path = Path2
});
}
Status = SyncItemStatus.ActionOK;
}
else if (Action == SyncActions.Delete1 || Action == SyncActions.Delete2 || Action == SyncActions.DeleteBoth)
{
if (LongDirectory.Exists(Path1))
{
LongDirectory.Delete(Path1, true);
}
if (LongDirectory.Exists(Path2))
{
LongDirectory.Delete(Path2, true);
}
if (past1 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past1);
}
if (past2 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past2);
}
Status = SyncItemStatus.ActionOK;
}
}
else if (ItemType == SyncItemType.File)
{
SyncedFile past1 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path1);
SyncedFile past2 = MainDbContext.DB.SyncedFiles.FirstOrDefault(f => f.Path == Path2);
if (Action == SyncActions.CopyFrom1To2)
{
LongFile.Copy(Path1, Path2);
DateTime lastModified = LongFile.GetLastWriteTime(Path1);
if (past1 == null)
{
past1 = new SyncedFile()
{
LastModified = lastModified, Path = Path1
};
MainDbContext.DB.SyncedFiles.Add(past1);
}
else if (!lastModified.Equals(past1.LastModified))
{
past1.LastModified = lastModified;
}
if (past2 == null)
{
past2 = new SyncedFile()
{
LastModified = lastModified, Path = Path2
};
MainDbContext.DB.SyncedFiles.Add(past2);
}
else if (!lastModified.Equals(past2.LastModified))
{
past2.LastModified = lastModified;
}
Status = SyncItemStatus.ActionOK;
}
else if (Action == SyncActions.CopyFrom2To1)
{
LongFile.Copy(Path2, Path1);
DateTime lastModified = LongFile.GetLastWriteTime(Path2);
if (past1 == null)
{
past1 = new SyncedFile()
{
LastModified = lastModified, Path = Path1
};
MainDbContext.DB.SyncedFiles.Add(past1);
}
else if (!lastModified.Equals(past1.LastModified))
{
past1.LastModified = lastModified;
}
if (past2 == null)
{
past2 = new SyncedFile()
{
LastModified = lastModified, Path = Path2
};
MainDbContext.DB.SyncedFiles.Add(past2);
}
else if (!lastModified.Equals(past2.LastModified))
{
past2.LastModified = lastModified;
}
Status = SyncItemStatus.ActionOK;
}
else if (Action == SyncActions.Delete1)
{
if (LongFile.Exists(Path1))
{
LongFile.Delete(Path1);
}
if (past1 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past1);
}
if (past2 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past2);
}
Status = SyncItemStatus.ActionOK;
}
else if (Action == SyncActions.Delete2)
{
if (LongFile.Exists(Path2))
{
LongFile.Delete(Path2);
}
if (past1 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past1);
}
if (past2 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past2);
}
Status = SyncItemStatus.ActionOK;
}
else if (Action == SyncActions.DeleteBoth)
{
if (LongFile.Exists(Path1))
{
LongFile.Delete(Path1);
}
if (LongFile.Exists(Path2))
{
LongFile.Delete(Path2);
}
if (past1 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past1);
}
if (past2 != null)
{
MainDbContext.DB.SyncedFiles.Remove(past2);
}
Status = SyncItemStatus.ActionOK;
}
}
MainDbContext.DB.SaveChanges();
}
catch (Exception ex)
{
//TODO What to do when a copy/delete doesnt work?
}
}
