namespace Caliburn.Micro.Core {
    using System;

    /// <summary>
    /// A logger.
    /// </summary>
    public interface ILog {
        /// <summary>
        /// Logs the message as info.
        /// </summary>
        /// <param name="format">A formatted message.</param>
        /// <param name="args">Parameters to be injected into the formatted message.</param>
        void Info(string format, params object[] args);

        /// <summary>
        /// Logs the message as a warning.
        /// </summary>
        /// <param name="format">A formatted message.</param>
        /// <param name="args">Parameters to be injected into the formatted message.</param>
        void Warn(string format, params object[] args);

        /// <summary>
        /// Logs the exception.
        /// </summary>
        /// <param name="exception">The exception.</param>
        void Error(Exception exception);
    }
}