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

namespace CST_117_Topic_3_DQ_1_Text_Reader
{
    public partial class Form1 : Form
    {
        bool fileSelected = false;
        string filePath;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            label2.Visible = false;
        }

        private void label1_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.InitialDirectory = "c:\\";
                openFileDialog.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
                openFileDialog.FilterIndex = 2;
                openFileDialog.RestoreDirectory = true;

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    filePath = openFileDialog.FileName;
                    label1.Text = filePath;

                    var fileStream = openFileDialog.OpenFile();

                    using (StreamReader reader = new StreamReader(fileStream))
                    {
                        richTextBox1.Text = reader.ReadToEnd();
                    }

                    fileSelected = true;
                }
            }
        }

        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {
            if (!fileSelected)
                label2.Text = "Save File";
            else
                label2.Text = "Save Edit";

            label2.ForeColor = Color.Blue;

            label2.Visible = true;
        }

        private void label2_Click(object sender, EventArgs e)
        {
            if (fileSelected)
            {
                File.WriteAllText(filePath, richTextBox1.Text);
            }

            label2.Text = "Saved " + DateTime.Now.ToString("h:mm:ss tt");
            label2.ForeColor = Color.Green;
        }
    }
}