/*
 * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
 * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
 *
 * Licensed 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.
*/

using System;

namespace QuantConnect.Logging
{
    /// <summary>
    /// Logging extensions.
    /// </summary>
    public static class LogHandlerExtensions
    {
        /// <summary>
        /// Write error message to log
        /// </summary>
        /// <param name="logHandler"></param>
        /// <param name="text">Message</param>
        /// <param name="args">Arguments to format.</param>
        public static void Error(this ILogHandler logHandler, string text, params object[] args)
        {
            if (logHandler == null)
            {
                throw new ArgumentNullException("logHandler", "Log Handler cannot be null");
            }

            logHandler.Error(string.Format(text, args));
        }

        /// <summary>
        /// Write debug message to log
        /// </summary>
        /// <param name="logHandler"></param>
        /// <param name="text">Message</param>
        /// <param name="args">Arguments to format.</param>
        public static void Debug(this ILogHandler logHandler, string text, params object[] args)
        {
            if (logHandler == null)
            {
                throw new ArgumentNullException("logHandler", "Log Handler cannot be null");
            }

            logHandler.Debug(string.Format(text, args));
        }

        /// <summary>
        /// Write debug message to log
        /// </summary>
        /// <param name="logHandler"></param>
        /// <param name="text">Message</param>
        /// <param name="args">Arguments to format.</param>
        public static void Trace(this ILogHandler logHandler, string text, params object[] args)
        {
            if (logHandler == null)
            {
                throw new ArgumentNullException("logHandler", "Log Handler cannot be null");
            }

            logHandler.Trace(string.Format(text, args));
        }
    }
}
