namespace IPLCConnect
{
    public enum PLCProtocol
    {
        Modbus,
        S7,
    }
    public sealed class PLCProtocolAttribute:Attribute
    {
        public PLCProtocolAttribute(PLCProtocol protocol = PLCProtocol.S7) => Protocol = protocol;
        public PLCProtocol Protocol { get; } = PLCProtocol.S7;
    }
    public interface IPLCConnect:IDisposable
    {
        public PLCProtocol Protocol { get; }
        /// <summary>
        /// 连接状态
        /// </summary>
        public bool IsConnected { get; }
        /// <summary>
        /// IP地址
        /// </summary>
        public string IP { get; }
        /// <summary>
        /// 端口
        /// </summary>
        public int Port { get; }
        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="ip">IP地址</param>
        /// <param name="port">端口号</param>
        public void Init(string ip, int port);
        /// <summary>
        /// 读寄存器
        /// </summary>
        /// <typeparam name="T">数据类型</typeparam>
        /// <param name="addr">地址</param>
        /// <returns></returns>
        public T Read<T>(string addr) where T : unmanaged;
        /// <summary>
        /// 读取bool
        /// </summary>
        /// <param name="addr">地址</param>
        /// <param name="bitindex">bit序号</param>
        /// <returns></returns>
        public bool ReadBit(string addr, byte bitindex);
        /// <summary>
        /// 写寄存器
        /// </summary>
        /// <typeparam name="T">数据类型</typeparam>
        /// <param name="addr">地址</param>
        /// <param name="value">需要写入的值</param>
        public void Write<T>(string addr, T value) where T : unmanaged;
        /// <summary>
        /// 写bool
        /// </summary>
        /// <param name="addr">地址</param>
        /// <param name="bitindex">bit序号</param>
        /// <param name="value">值</param>
        public void Writebit(string addr, byte bitindex, bool value);
        /// <summary>
        /// 连接
        /// </summary>
        public void Connect();
        /// <summary>
        /// 断开连接
        /// </summary>
        public void DisConnect();
        /// <summary>
        /// 连接状态改变
        /// </summary>
        public event EventHandler<bool> StatusChanged;
    }
}