using System;

namespace Vinno.IUS.Common.Network.Transfer
{
    public class ResultMessage: DictionaryMessage, IEquatable<ResultMessage>
    {
        /// <summary>
        /// Gets the result code for the result.
        /// </summary>
        public int ResultCode { get; }
            
        public ResultMessage(int code) : base(SystemTags.Result)
        {
            ResultCode = code;
            AddMessage(SystemTags.ResultCode,new IntegerElement(ResultCode));
        }

        protected ResultMessage(Message message) : base(message)
        {
            ResultCode = GetElement<IntegerElement>(SystemTags.ResultCode).Value;
        }

        public static ResultMessage Convert(Message message)
        {
            try
            {
                if (message.Tag.Id != SystemTags.Result.Id)
                {
                    return null;
                }
                return new ResultMessage(message);
            }
            catch (Exception)
            {
                //DoNothing.
            }
            return null;
        }

        public bool Equals(ResultMessage other)
        {
            if (ReferenceEquals(null, other)) return false;
            return ResultCode == other.ResultCode;
        }

        public override bool Equals(object obj)
        {
            if (ReferenceEquals(null, obj)) return false;
            if (ReferenceEquals(this, obj)) return true;
            if (!(obj is ResultMessage)) return false;
            return Equals((ResultMessage) obj);
        }

        public override int GetHashCode()
        {
            return ResultCode;
        }

        public static bool operator ==(ResultMessage left, ResultMessage right)
        {
            return Equals(left, right);
        }

        public static bool operator !=(ResultMessage left, ResultMessage right)
        {
            return !Equals(left, right);
        }
    }
}