// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using Microsoft.Extensions.Logging;

namespace Microsoft.AspNetCore.Http.Connections
{
    public partial class HttpConnectionManager
    {
        private static class Log
        {
            private static readonly Action<ILogger, string, Exception> _createdNewConnection =
                LoggerMessage.Define<string>(LogLevel.Debug, new EventId(1, "CreatedNewConnection"), "New connection {TransportConnectionId} created.");

            private static readonly Action<ILogger, string, Exception> _removedConnection =
                LoggerMessage.Define<string>(LogLevel.Debug, new EventId(2, "RemovedConnection"), "Removing connection {TransportConnectionId} from the list of connections.");

            private static readonly Action<ILogger, string, Exception> _failedDispose =
                LoggerMessage.Define<string>(LogLevel.Error, new EventId(3, "FailedDispose"), "Failed disposing connection {TransportConnectionId}.");

            private static readonly Action<ILogger, string, Exception> _connectionReset =
                LoggerMessage.Define<string>(LogLevel.Trace, new EventId(4, "ConnectionReset"), "Connection {TransportConnectionId} was reset.");

            private static readonly Action<ILogger, string, Exception> _connectionTimedOut =
                LoggerMessage.Define<string>(LogLevel.Trace, new EventId(5, "ConnectionTimedOut"), "Connection {TransportConnectionId} timed out.");

            private static readonly Action<ILogger, Exception> _scanningConnections =
                LoggerMessage.Define(LogLevel.Trace, new EventId(6, "ScanningConnections"), "Scanning connections.");

            private static readonly Action<ILogger, TimeSpan, Exception> _scannedConnections =
                LoggerMessage.Define<TimeSpan>(LogLevel.Trace, new EventId(7, "ScannedConnections"), "Scanned connections in {Duration}.");

            public static void CreatedNewConnection(ILogger logger, string connectionId)
            {
                _createdNewConnection(logger, connectionId, null);
            }

            public static void RemovedConnection(ILogger logger, string connectionId)
            {
                _removedConnection(logger, connectionId, null);
            }

            public static void FailedDispose(ILogger logger, string connectionId, Exception exception)
            {
                _failedDispose(logger, connectionId, exception);
            }

            public static void ConnectionTimedOut(ILogger logger, string connectionId)
            {
                _connectionTimedOut(logger, connectionId, null);
            }

            public static void ConnectionReset(ILogger logger, string connectionId, Exception exception)
            {
                _connectionReset(logger, connectionId, exception);
            }

            public static void ScanningConnections(ILogger logger)
            {
                _scanningConnections(logger, null);
            }

            public static void ScannedConnections(ILogger logger, TimeSpan duration)
            {
                _scannedConnections(logger, duration, null);
            }
        }
    }
}