using SerialComms;
using System;
using System.IO.Ports;
using System.Windows.Forms;

namespace Serial_Comms_CS
{


    public partial class MainForm : Form
    {

        SerialConnector serialConnector = new SerialConnector();

        void handleCalInt(string args)
        {
            Console.WriteLine("Callback CAL-INT called");
            Console.WriteLine("Arguments: " + args);
        }

        void handleRead(string args)
        {
            Console.WriteLine("Callback READ called");
            Console.WriteLine("Arguments: " + args);
        }

        public MainForm()
        {
            InitializeComponent();

            // Determine which serial ports are available
            string[] ports = SerialPort.GetPortNames();

            if (ports.Length <= 0)
            {
                MessageBox.Show(
                    "Unable to find any COM ports",
                    "No COM ports",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error
                );
            }

            // Add the serial ports to the combobox
            foreach (string port in ports)
            {
                serialPortBox.Items.Add(port);
            }

            try
            {
                serialConnector.OnCommand("CAL-NXT", (string args) => Console.WriteLine(args));
                serialConnector.OnCommand("CAL-INT", handleCalInt);
                serialConnector.OnCommand("READ", handleRead);
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    ex.Message,
                    "Failed to register command",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error
                );
            }
        }

        private void serialPortBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            string selectedPort = serialPortBox.Text;
            try
            {
                serialConnector.SetSerialPort(selectedPort);
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    "Unable to set selected COM port\n" + ex.Message,
                    "Unable to open COM port",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error
                );
            }
            serialTimer.Enabled = true;
        }

        private void serialTimer_Tick(object sender, EventArgs e)
        {
            try
            {
                serialConnector.Cycle();
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    "Encountered an error while parsing commands\n" + ex.Message,
                    "Command parse error",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error
                );
            }
        }

        private void MainForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            serialConnector.CloseSerial();
        }

        private void sendBtn_Click(object sender, EventArgs e)
        {
            serialConnector.SendCommand("CAL-INT", "3");
        }

        private void reconnectBtn_Click(object sender, EventArgs e)
        {
            string selectedPort = serialPortBox.Text;
            try
            {
                serialConnector.SetSerialPort(selectedPort);
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    "Unable to set selected COM port\n" + ex.Message,
                    "Unable to open COM port",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error
                );
            }
        }
    }
}