using EC.AutoWeightServer.Model.EventArgsEx;
using EC.Utils;
using System;
using System.Text;
using EC.AutoWeightServer.Model.Config;

namespace EC.AutoWeightServer.IfManager.Scales
{
	public class ScalesZhuHai : Scales
	{
		public ScalesZhuHai()
		{
		}

		public ScalesZhuHai(string comName, int baudRate)
		{
			this.ComName = comName;
			this.BaudRate = baudRate;
		}

		public ScalesZhuHai(string comName, int baudRate, int receivedBytesThreshold)
		{
			this.ComName = comName;
			this.BaudRate = baudRate;
			this.ReceivedBytesThreshold = receivedBytesThreshold;
		}

		public override event EventHandler<ScaleEventArgs> OnRecData;
		public event EventHandler<byte[]> OnRecTransmit = null;

		public override void RecData(object sender, byte[] buf)
		{
			OnRecTransmit?.Invoke(sender, buf);

			var weightBuf = CommonUtil.Reverse(Encoding.UTF8.GetString(buf).Replace(".", "").Trim());
			var weightArgs = weightBuf.Split('=');

			foreach (var weightArg in weightArgs)
			{
				if (string.IsNullOrEmpty(weightArg))
					continue;

				if (!CommonUtil.IsNumber(weightArg))
					continue;

				var weight = CommonUtil.WeightStrToDec(weightArg) / 1000;
				var unit = "t";

				var scaleArgs = new ScaleEventArgs(weight, unit);
				OnRecData?.Invoke(sender, scaleArgs);
				break;
			}

			if (ServerConfig.WTDiscardInBufferFlag > 0)
				_port.DiscardInBuffer();
		}
	}
}