// <copyright file="ConsoleLogHandler.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
// </copyright>

using System;

#nullable enable

namespace OpenQA.Selenium.Internal.Logging
{
    /// <summary>
    /// Represents a log handler that writes log events to the console.
    /// </summary>
    public class ConsoleLogHandler : ILogHandler
    {
        // performance trick to avoid expensive Enum.ToString() with fixed length
        private static readonly string[] _levels = { "TRACE", "DEBUG", " INFO", " WARN", "ERROR" };

        /// <summary>
        /// Handles a log event by writing it to the console.
        /// </summary>
        /// <param name="logEvent">The log event to handle.</param>
        public void Handle(LogEvent logEvent)
        {
            Console.Error.WriteLine($"{logEvent.Timestamp:HH:mm:ss.fff} {_levels[(int)logEvent.Level]} {logEvent.IssuedBy.Name}: {logEvent.Message}");
        }
    }
}
