using System;
using System.IO;
using Pingerino.Services.Interfaces;

namespace Pingerino.Services
{
    public class LoggingService : ILoggingService
    {
        private readonly string _logFilePath;
        private readonly object _lockObject = new object();

        public LoggingService()
        {
            var logDirectory = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Pingerino", "Logs");
            Directory.CreateDirectory(logDirectory);
            _logFilePath = Path.Combine(logDirectory, $"pingerino_{DateTime.Now:yyyyMMdd}.log");
        }

        public void LogInformation(string message)
        {
            WriteLog(LogLevel.Information, message);
        }

        public void LogWarning(string message)
        {
            WriteLog(LogLevel.Warning, message);
        }

        public void LogError(string message, Exception exception = null)
        {
            var fullMessage = exception != null ? $"{message} - Exception: {exception}" : message;
            WriteLog(LogLevel.Error, fullMessage);
        }

        public void LogDebug(string message)
        {
            WriteLog(LogLevel.Debug, message);
        }

        private void WriteLog(LogLevel level, string message)
        {
            try
            {
                lock (_lockObject)
                {
                    var logEntry = $"[{DateTime.Now:yyyy-MM-dd HH:mm:ss.fff}] [{level}] {message}";
                    File.AppendAllText(_logFilePath, logEntry + Environment.NewLine);
                    
                    // Also write to console for debugging
                    Console.WriteLine(logEntry);
                }
            }
            catch
            {
                // Ignore logging errors to prevent infinite loops
            }
        }
    }
}