public static void LogSafe(this Contracts.IConfiguration config, LogLevel level, string text)
{
if (config == null || level > config.GetLevel() || text == null)
{
return;
}
config.Log?.Invoke(text);
LogToFile(config, level, text);
}
public static void LogSafe(this Contracts.IConfiguration config, LogLevel level, Func <string> logMsg)
{
if (config == null || level > config.GetLevel() || logMsg == null)
{
return;
}
var text = logMsg.Invoke();
config.Log?.Invoke(text);
LogToFile(config, level, text);
}
private static void LogToFile(Contracts.IConfiguration config, LogLevel level, string text)
{
var path = config.LogFile;
if (string.IsNullOrWhiteSpace(path))
{
return;
}
var txt = $"{DateTime.Now:o} {level}: {text}{Environment.NewLine}";
try
{
System.IO.File.AppendAllText(path, txt);
}
catch (Exception e)
{
throw new ConfigurationException($"Couldn't write to log file at {path} ({e.Message}).", config);
}
}
public static LogLevel GetLevel(this Contracts.IConfiguration configuration) => (configuration?.LogLevel).GetValueOrDefault(LogLevel.Scarce);
