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using Ryujinx.Common.Logging.Formatters;
using System;
using System.IO;
using System.Linq;
namespace Ryujinx.Common.Logging.Targets
{
public class FileLogTarget : ILogTarget
{
private readonly StreamWriter _logWriter;
private readonly ILogFormatter _formatter;
private readonly string _name;
string ILogTarget.Name { get => _name; }
public FileLogTarget(string name, FileStream fileStream)
{
_name = name;
_logWriter = new StreamWriter(fileStream);
_formatter = new DefaultLogFormatter();
}
public static FileStream PrepareLogFile(string path)
{
// Ensure directory is present
DirectoryInfo logDir = new(path);
try
{
logDir.Create();
}
catch (IOException exception)
{
Logger.Warning?.Print(LogClass.Application, $"Logging directory could not be created '{logDir}': {exception}");
return null;
}
// Clean up old logs, should only keep 3
FileInfo[] files = logDir.GetFiles("*.log").OrderBy((info => info.CreationTime)).ToArray();
for (int i = 0; i < files.Length - 2; i++)
{
try
{
files[i].Delete();
}
catch (UnauthorizedAccessException exception)
{
Logger.Warning?.Print(LogClass.Application, $"Old log file could not be deleted '{files[i].FullName}': {exception}");
return null;
}
catch (IOException exception)
{
Logger.Warning?.Print(LogClass.Application, $"Old log file could not be deleted '{files[i].FullName}': {exception}");
return null;
}
}
string version = ReleaseInformation.Version;
// Get path for the current time
path = Path.Combine(logDir.FullName, $"Ryujinx_{version}_{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.log");
try
{
return File.Open(path, FileMode.Append, FileAccess.Write, FileShare.Read);
}
catch (UnauthorizedAccessException exception)
{
Logger.Warning?.Print(LogClass.Application, $"Log file could not be created '{path}': {exception}");
return null;
}
catch (IOException exception)
{
Logger.Warning?.Print(LogClass.Application, $"Log file could not be created '{path}': {exception}");
return null;
}
}
public void Log(object sender, LogEventArgs args)
{
_logWriter.WriteLine(_formatter.Format(args));
_logWriter.Flush();
}
public void Dispose()
{
GC.SuppressFinalize(this);
_logWriter.WriteLine("---- End of Log ----");
_logWriter.Flush();
_logWriter.Dispose();
}
}
}
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