using Serilog;
using Serilog.Context;
using Serilog.Core;
using Serilog.Events;
using System.Diagnostics;
using System.Runtime.CompilerServices;

namespace YY.Admin.Core
{
    public class SerilogLoggerService : ILoggerService
    {
        private readonly Serilog.ILogger _logger;
        private readonly IReadOnlyList<IClientLogReportSink> _logReportSinks;

        public SerilogLoggerService(IEnumerable<IClientLogReportSink> logReportSinks)
        {
            _logReportSinks = logReportSinks?.ToList() ?? new List<IClientLogReportSink>();
            _logger = new LoggerConfiguration()
                .MinimumLevel.Debug()
                .Enrich.WithThreadId()
                .Enrich.WithMachineName()
                .WriteTo.Debug(outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff} [{Level:u3}] {Message:lj}{NewLine}{Exception}")
                .WriteTo.Console(outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff} [{Level:u3}] {Message:lj}{NewLine}{Exception}")
                .WriteTo.File("logs/app.log",
                    rollingInterval: RollingInterval.Day,
                    retainedFileCountLimit: 7,
                    outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff} [{Level:u3}] ({ThreadId}) {Message:lj}{NewLine}{Exception}")
                .CreateLogger();
        }

        public void Information(string message)
        {
            _logger.Information(message);
            _ = PushRemoteAsync("OPERATION", message);
        }

        public void Warning(string message)
        {
            _logger.Warning(message);
            _ = PushRemoteAsync("WARNING", message);
        }

        public void Error(string message, Exception? ex = null)
        {
            _logger.Error(ex, message);
            _ = PushRemoteAsync("EXCEPTION", message, exception: ex?.ToString());
        }

        public void Debug(string message)
        {
            _logger.Debug(message);
            _ = PushRemoteAsync("DEBUG", message);
        }

        public void Performance(string operationName, TimeSpan duration)
        {
            _logger.Information("Performance: {Operation} completed in {Duration}ms",
                operationName, duration.TotalMilliseconds);
            _ = PushRemoteAsync("OPERATION", $"Performance: {operationName} completed in {duration.TotalMilliseconds}ms");
        }

        private async Task PushRemoteAsync(string category, string message, bool? success = null, string? exception = null)
        {
            if (_logReportSinks.Count == 0 || string.IsNullOrWhiteSpace(message))
            {
                return;
            }

            foreach (var sink in _logReportSinks)
            {
                try
                {
                    await sink.ReportLogAsync(category, message, null, success, exception);
                }
                catch
                {
                    // 上报失败不影响本地主日志链路
                }
            }
        }
    }
}