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

namespace vcfSplit
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            DialogResult dr =  openFileDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                txtSource.Text = openFileDialog1.FileName;
                EnableSplitButton();
            }
        }

        private void btnDestination_Click(object sender, EventArgs e)
        {
            DialogResult dr = folderBrowserDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                txtDestination.Text = folderBrowserDialog1.SelectedPath;
                EnableSplitButton(); 
            }
        }

        private void EnableSplitButton()
        {
            btnSplit.Enabled = ((txtDestination.Text.Length > 0) && (txtSource.Text.Length > 0));

        }

        private void btnSplit_Click(object sender, EventArgs e)
        {
            string source = File.ReadAllText(txtSource.Text);
            string[] item = source.Split(new string[]{"END:VCARD"}, StringSplitOptions.RemoveEmptyEntries);

            progressBar1.Maximum = item.Length;

            for (int i = 0; i < item.Length; i++)
            {
                progressBar1.Value = i;
                File.WriteAllText(txtDestination.Text + "\\card" + i.ToString() + ".vcf", item[i] + "\nEND:VCARD");
            }
            progressBar1.Value = progressBar1.Maximum;
            MessageBox.Show("Complete.");
            this.Close();
        }
    }
}