using System;
using JD.Kernel.Structs;

namespace JD.LogService
{
    /// <summary>
    /// An informational message.
    /// </summary>
    [Serializable]
    public class Message : LogEvent
    {
        #region Variables

        private MessageImportance m_importance = MessageImportance.Normal;

        #endregion

        #region Constructors

        public Message()
            : base(LogCategory.Message)
        {}

        public Message(string message)
            : this()
        {
            Message = message;
        }

        public Message(string message, params object[] args)
            : this(FormatString(message, args))
        {
        }

        [Obsolete("Log events are now mutable. Use the basic Message(string) constructor and set the rest of the properties.")] // 2011.01
        public Message(FileLocation origin, string message)
            : this(message)
        {
            Origin = origin;
        }
        
        #endregion

        #region Properties

        /// <summary>
        /// Relative importance of the message.
        /// </summary>
        public MessageImportance Importance
        {
            get { return m_importance; }
            set { m_importance = value; }
        }

        #endregion

        #region Methods

        public override string ToString()
        {
            return $"[Message: Text={Message}, Importance={Importance}]";
        }

        /// <summary>
        /// Returns the message in canonical format.
        /// </summary>
        public override string ToCanonicalString()
        {
            if (m_importance != MessageImportance.Normal)
            {
                return $"{m_importance}:{Message}";
            }
            return Message;
        }

        #endregion

        #region Static Creation

        [Obsolete("Log events are now mutable. Use the basic Message(string, object[]) constructor.")] // 2011.01
        public static Message MessageFormated(string message, params object[] args)
        {
            return new Message(message, args);
        }

        #endregion
    }
}