using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace TinyFPGA_VisualProgrammer
{
    public partial class Programmer : Form
    {
        SerialController sController = null;
        TinyProg TProg = null;

        public Programmer()
        {
            InitializeComponent();
            fileSelectDialog.InitialDirectory = Path.GetDirectoryName(Application.ExecutablePath);
            this.AllowDrop = true;
            this.DragEnter += new DragEventHandler(Programmer_DragEnter);
            this.DragDrop += new DragEventHandler(Programmer_DragDrop);

            sController = new SerialController();
            TProg = new TinyProg(sController);
            if (sController.sPortsList != null && sController.sPortsList.Count > 0)
            {
                foreach (string s in sController.sPortsList)
                    serialPortList.Items.Add(s);

                serialPortList.SelectedIndex = serialPortList.Items.Count - 1;
            }         
        }

        void Programmer_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Copy;
        }

        void Programmer_DragDrop(object sender, DragEventArgs e)
        {
            string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
            //if(Path.GetExtension(files.First()) == "hex")
            fileLocationTextBox.Text = files.First();
            fileSelectDialog.FileName = files.First();
            launchProgramBtn.Enabled = true;
        }

        private void fileExpSelect_Click(object sender, EventArgs e)
        {
            fileSelectDialog.ShowDialog();
        }

        private void fileSelectDialog_FileOk(object sender, CancelEventArgs e)
        {
            fileLocationTextBox.Text = fileSelectDialog.FileName;
            launchProgramBtn.Enabled = true;
        }

        private void connectBtn_Click(object sender, EventArgs e)
        {
            connectBtn.Enabled = false;

            if (sController.GetPortOpened())
            {
                sController.ClosePort();
                connectBtn.Text = "Connect";
                statusLabel.Text = "--";
            }
            else
            {
                sController.comPortName = serialPortList.SelectedItem.ToString();
                sController.OpenPort();
                if (sController.GetPortOpened())
                    TProg.CheckTinyPresence();
                if (TProg.TinyFPGAIsConnected)
                    statusLabel.Text = TProg.GetBoardData().name + " v" + TProg.GetBoardData().hver + " found.";
                else
                    statusLabel.Text = "No TinyFPGA found.";
                connectBtn.Text = "Disconnect";
            }

            connectBtn.Enabled = true;
        }

        private void serialPortList_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (serialPortList.SelectedItem.ToString().Length > 0)
                connectBtn.Enabled = true;
            else
                connectBtn.Enabled = false;
        }
    }
}