/// <summary>
/// Reacts to file change and process it. Changes can be 2 types: Field data edited, or last bot command (added/edited).
/// If lastLine stays the same -> we update our field
/// Else we update last command
/// </summary>
/// <param name="sender">Request sender</param>
/// <param name="e"> EventArgs for this kind of event. </param>
private void FsWatcher_Changed(object sender, FileSystemEventArgs e)
{
Console.WriteLine("file changed");
if (e.FullPath != watchingFilePath)
{
return;
}
Console.WriteLine("Our file changed");
string fileContent;
using (FileStream fs = new FileStream(watchingFilePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
StreamReader sr = new StreamReader(fs);
fileContent = sr.ReadToEnd();
}
string[] lines = fileContent.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
if (lastLine.Equals(lines.Last()))
{
using (MemoryStream ms = new MemoryStream(Encoding.Default.GetBytes(fileContent)))
{
field = BotJournalFileHelper.ReadFieldFromStream(ms);
}
Console.WriteLine("field edited");
Console.WriteLine();
if (FieldEdited != null)
{
FieldEdited.Invoke(this, new FieldChangedEventArgs(this.field, field));
}
}
else
{
GameCommand command = BotJournalFileHelper.ParseGameCommand(lines.Last());
Console.WriteLine("command edited");
Console.WriteLine();
if (CommandEdited != null)
{
CommandEdited.Invoke(this, new CommandChangedEventArgs(this.command, command));
}
this.command = command;
lastLine = lines.Last();
}
}
internal BotJournalFileWatcher(string directory, string fileName)
{
using (FileStream fs = new FileStream(Path.Combine(directory, fileName), FileMode.OpenOrCreate, FileAccess.Read, FileShare.ReadWrite))
{
field = BotJournalFileHelper.ReadFieldFromStream(fs);
}
fsWatcher = new FileSystemWatcher(directory);
fsWatcher.NotifyFilter = NotifyFilters.LastWrite;
fsWatcher.EnableRaisingEvents = true;
fsWatcher.Changed += FsWatcher_Changed;
watchingFilePath = Path.Combine(directory, fileName);
Console.WriteLine("Watching file - " + watchingFilePath);
}