namespace HC_APTBS.Services
{
    /// <summary>
    /// Application-level structured logger.
    /// Implementations write to dated files under <c>%UserProfile%\.HC_APTBS\log\</c>.
    /// </summary>
    public interface IAppLogger
    {
        /// <summary>Logs a fatal or unrecoverable error.</summary>
        /// <param name="source">Class or component name (used as a prefix in the log line).</param>
        /// <param name="message">Error message.</param>
        void Error(string source, string message);

        /// <summary>Logs a non-fatal warning.</summary>
        void Warning(string source, string message);

        /// <summary>Logs a normal informational message.</summary>
        void Info(string source, string message);

        /// <summary>Logs a verbose debug message.</summary>
        void Debug(string source, string message);
    }
}