using Microsoft.Extensions.Logging;

namespace JSONParser.Logger
{
    // Customized ILogger, writes logs to text files
    public class CustomFileLogger : ILogger
    {
        private readonly string _categoryName;
        private readonly StreamWriter _logFileWriter;

        public CustomFileLogger(string categoryName, StreamWriter logFileWriter)
        {
            _categoryName = categoryName;
            _logFileWriter = logFileWriter;
        }

        public IDisposable BeginScope<TState>(TState state)
        {
            return null;
        }

        public bool IsEnabled(LogLevel logLevel)
        {
            // Ensure that only information level and higher logs are recorded
            return logLevel >= LogLevel.Information;
        }

        public void Log<TState>(
            LogLevel logLevel,
            EventId eventId,
            TState state,
            Exception exception,
            Func<TState, Exception, string> formatter)
        {
            // Ensure that only information level and higher logs are recorded
            if (!IsEnabled(logLevel))
            {
                return;
            }

            // Get the formatted log message
            var message = formatter(state, exception);

            //Write log messages to text file
            //_logFileWriter.WriteLine($"[{logLevel}] [{_categoryName}] {message}");
            _logFileWriter.WriteLine($"[{logLevel}] {message}");
            _logFileWriter.Flush();
        }
    }
}