///
/// Copyright (c) 2015 Sensus Metering Systems
/// Author: Milan Hanajik
///
using System;
using System.Globalization;
using System.Windows.Forms;
using System.IO.Ports;
using log4net;
using TBF.BenchControl.Generic;

namespace TBF.BenchControl.MettlerToledo.Multi
{
	public partial class BalanceCfgCtrl : UserControl, IComponentCfgCtrl
	{
		static readonly ILog log = LogManager.GetLogger(typeof(BalanceCfgCtrl));

		public bool ShowMore { get { return false; } }

		BalanceCfg config;
		public IComponentCfg Config
		{
			get { return config as IComponentCfg; }
			set
			{
				config = value as BalanceCfg;
				Redraw();
			}
		}

		public BalanceCfgCtrl()
		{
			InitializeComponent();

			parityComboBox.Items.Add(Parity.None.ToString());
			parityComboBox.Items.Add(Parity.Even.ToString());
			parityComboBox.Items.Add(Parity.Odd.ToString());

			stopBitsComboBox.Items.Add(StopBits.None.ToString());
			stopBitsComboBox.Items.Add(StopBits.One.ToString());
			stopBitsComboBox.Items.Add(StopBits.OnePointFive.ToString());
			stopBitsComboBox.Items.Add(StopBits.Two.ToString());

			handshakeComboBox.Items.Add(Handshake.None.ToString());
			handshakeComboBox.Items.Add(Handshake.RequestToSend.ToString());
			handshakeComboBox.Items.Add(Handshake.XOnXOff.ToString());
		}

		int GetParityIx(Parity par)
		{
			if (par == Parity.None) return 0;
			if (par == Parity.Even) return 0;
			if (par == Parity.Odd) return 0;
			return -1;
		}
		Parity GetParity(string str)
		{
			if (str.Equals(Parity.None.ToString())) return Parity.None;
			if (str.Equals(Parity.Even.ToString())) return Parity.Even;
			if (str.Equals(Parity.Odd.ToString())) return Parity.Odd;
			return (Parity)(-1);
		}

		int GetStopBitsIx(StopBits sb)
		{
			if (sb == StopBits.None) return 0;
			if (sb == StopBits.One) return 1;
			if (sb == StopBits.OnePointFive) return 2;
			if (sb == StopBits.Two) return 3;
			return -1;
		}
		StopBits GetStopBits(string str)
		{
			if (str.Equals(StopBits.None.ToString())) return StopBits.None;
			if (str.Equals(StopBits.One.ToString())) return StopBits.One;
			if (str.Equals(StopBits.OnePointFive.ToString())) return StopBits.OnePointFive;
			if (str.Equals(StopBits.Two.ToString())) return StopBits.Two;
			return (StopBits)(-1);
		}

		int GetHandshakeIx(Handshake par)
		{
			if (par == Handshake.None) return 0;
			if (par == Handshake.RequestToSend) return 0;
			if (par == Handshake.XOnXOff) return 0;
			return -1;
		}
		Handshake GetHandshake(string str)
		{
			if (str.Equals(Handshake.None.ToString())) return Handshake.None;
			if (str.Equals(Handshake.RequestToSend.ToString())) return Handshake.RequestToSend;
			if (str.Equals(Handshake.XOnXOff.ToString())) return Handshake.XOnXOff;
			return (Handshake)(-1);
		}

		private void BalanceCfgCtrl_Load(object sender, EventArgs e)
		{
			Redraw();
		}

		public void Closing()
		{
		}

		void Redraw()
		{
			if (config == null) return;			/// Control was not loaded, settings were not changed

			classNameLabel.Text = config.Factory.ClassName;
			nameTextBox.Text = config.Name;
			idNrTextBox.Text = config.IdNr.ToString();
			capacityTextBox.Text = config.Capacity.ToString();
			resolutionTextBox.Text = config.Resolution.ToString();
			emptyTextBox.Text = config.Empty.ToString();
			formatTextBox.Text = (config.Format.Length > 1) ? config.Format.Substring(1) : config.Format;
			emptyTimeTextBox.Text = config.EmptyTimeSec.ToString();

			comPortNrTextBox.Text = config.ComPortNr.ToString();
			baudRateTextBox.Text = config.BaudRate.ToString();
			parityComboBox.Text = config.Parity.ToString();
			dataBitsTextBox.Text = config.DataBits.ToString();
			stopBitsComboBox.Text = config.StopBits.ToString();
			handshakeComboBox.Text = config.Handshake.ToString();
        }

		public void Unlock()
		{
			nameTextBox.Enabled = true;

			idNrTextBox.Enabled = true;
			capacityTextBox.Enabled = true;
			resolutionTextBox.Enabled = true;
			emptyTextBox.Enabled = true;
			formatTextBox.Enabled = true;
			emptyTimeTextBox.Enabled = true;

			comPortNrTextBox.Enabled = true;
			baudRateTextBox.Enabled = true;
			parityComboBox.Enabled = true;
			dataBitsTextBox.Enabled = true;
			stopBitsComboBox.Enabled = true;
			handshakeComboBox.Enabled = true;
        }

		public CfgUpdateFlags VerifyCfg(ref string message)
		{
            CfgUpdateFlags flags = CfgUpdateFlags.None;

			int idNr;
			if (!int.TryParse(idNrTextBox.Text, out idNr) || idNr < 1 || idNr > 3)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Id Number' is not valid";
			}

			float mass;
			if (!Utils.TryParseUFloat(capacityTextBox.Text, out mass) || mass <= 0)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Tank Capacity' is not valid";
			}
			if (!Utils.TryParseUFloat(resolutionTextBox.Text, out mass) || mass <= 0)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Resolution' is not valid";
			}
			if (!Utils.TryParseUFloat(emptyTextBox.Text, out mass) || mass <= 0)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Tank Empty' is not valid";
			}

			int dummy;
			if (!int.TryParse(formatTextBox.Text, out dummy) || dummy < 0 || dummy > 9)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Decimal points' should be between 0 and 9";
			}
			if (!int.TryParse(emptyTimeTextBox.Text, out dummy) || dummy < 1 || dummy > 999)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Tank Empty Time' should be between 1 and 999 sec";
			}

			if (idNr == 1)
			{
				if (!int.TryParse(comPortNrTextBox.Text, out dummy) || dummy < 1 || dummy > 999)
				{
					flags |= CfgUpdateFlags.Error;
					message += Environment.NewLine + "'Serial Port Number' is not valid";
				}
				if (!int.TryParse(baudRateTextBox.Text, out dummy) || dummy < 150 || dummy > 115200)
				{
					flags |= CfgUpdateFlags.Error;
					message += Environment.NewLine + "'Baud Rate' is not valid";
				}
				if (!int.TryParse(dataBitsTextBox.Text, out dummy) || dummy < 7 || dummy > 8)
				{
					flags |= CfgUpdateFlags.Error;
					message += Environment.NewLine + "'Data Bits' is not valid";
				}
			}

			return flags;
		}

		public CfgUpdateFlags UpdateCfg()
		{
			CfgUpdateFlags flags = CfgUpdateFlags.RestartRqrd;

			if (config == null) return CfgUpdateFlags.Error;	/// Control was not loaded, settings were not changed

			config.Name = nameTextBox.Text;
			config.IdNr = int.Parse(idNrTextBox.Text);

			config.Capacity = Utils.ParseUFloat(capacityTextBox.Text);
			config.Resolution = Utils.ParseUFloat(resolutionTextBox.Text);
			config.Empty = Utils.ParseUFloat(emptyTextBox.Text);
			config.Format = "F" + formatTextBox.Text;
			config.EmptyTimeSec = int.Parse(emptyTimeTextBox.Text);

			if (config.IdNr == 1)
			{
				config.ComPortNr = int.Parse(comPortNrTextBox.Text);
				config.BaudRate = int.Parse(baudRateTextBox.Text);
				config.Parity = GetParity(parityComboBox.SelectedItem.ToString());
				config.DataBits = int.Parse(dataBitsTextBox.Text);
				config.StopBits = GetStopBits(stopBitsComboBox.SelectedItem.ToString());
				config.Handshake = GetHandshake(handshakeComboBox.SelectedItem.ToString());
			}

			return flags;
		}

		private void idNrTextBox_TextChanged(object sender, EventArgs e)
		{
			int idNr;
			if (int.TryParse(idNrTextBox.Text, out idNr))
			{
				bool visible = (idNr == 1);

				comPortNrLabel.Visible = visible;
				comPortNrTextBox.Visible = visible;

				baudRateLabel.Visible = visible;
				baudRateTextBox.Visible = visible;

				parityLabel.Visible = visible;
				parityComboBox.Visible = visible;

				dataBitsLabel.Visible = visible;
				dataBitsTextBox.Visible = visible;

				stopBitsLabel.Visible = visible;
				stopBitsComboBox.Visible = visible;

				handshakeLabel.Visible = visible;
				handshakeComboBox.Visible = visible;
			}
		}
	}
}