using Forms1;
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 WindowsFormsApp2
{
    public partial class Form1 : Form
    {

        string drive;
        public string file;

        public Form1()
        {
            InitializeComponent();
        }

        private void getDriveInfoButton_Click(object sender, EventArgs e)
        {
            drivesListBox.Items.Clear();
            drivesListBox.Items.Add("====Drives Info====");
            DriveInfo[] drives = DriveInfo.GetDrives();
            foreach(DriveInfo drive in drives)
            {
                if (!drive.IsReady) continue;
                drivesListBox.Items.Add(drive + "\t" + drive.TotalSize / 1024.0f / 1024 / 1024 + "GB");
            }
        }

        private void drivesListBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if(drivesListBox.SelectedIndex != -1)
            {
                string temp = drivesListBox.SelectedItem.ToString().Substring(0, 3);
                if (Environment.GetLogicalDrives().Contains(temp))
                {
                    drive = temp;
                    listFolders(new DirectoryInfo(drive));
                    pathLabel.Text = drive;
                }
            }
        }

        private void listFolders(DirectoryInfo directoryInfo)
        {
            foldersListBox.Items.Clear();
            DirectoryInfo[] folders = directoryInfo.GetDirectories();
            foreach(DirectoryInfo folder in folders)
            {
                if (folder.Attributes.HasFlag(FileAttributes.Hidden)) continue;
                foldersListBox.Items.Add(folder);
            }
            FileInfo[] files = directoryInfo.GetFiles();
            foreach(FileInfo file in files)
            {
                if (file.Attributes.HasFlag(FileAttributes.Hidden)) continue;
                foldersListBox.Items.Add(file);
            }
        }

        private void foldersListBox_DoubleClick(object sender, EventArgs e)
        {
            if(foldersListBox.SelectedIndex != -1)
            {
                string folder = foldersListBox.SelectedItem.ToString();
                if(new DirectoryInfo(pathLabel.Text + folder).Attributes.HasFlag(FileAttributes.Directory))
                {
                    pathLabel.Text = pathLabel.Text + folder + @"\";
                    listFolders(new DirectoryInfo(pathLabel.Text));
                }
                else
                {
                    string txt = pathLabel.Text + folder;
                    if (txt.Contains(".txt"))
                    {
                        Form2 textEditor = new Form2();
                        textEditor.Show();
                        textEditor.newTextFile(txt);
                    }
                    else
                    {
                        System.Diagnostics.Process.Start(pathLabel.Text + folder);
                    }
                }
            }
        }

        private void BackButton_Click(object sender, EventArgs e)
        {
            if(pathLabel.Text != drive && pathLabel.Text != "N/A")
            {
                string location = pathLabel.Text.Substring(0, pathLabel.Text.Length - 1);
                location = location.Substring(0, location.LastIndexOf(@"\") + 1);
                listFolders(new DirectoryInfo(location));
                pathLabel.Text = location;
            }
        }

        private void newFolderButton_Click(object sender, EventArgs e)
        {
            if(!string.IsNullOrEmpty(drive) && pathLabel.Text != "N/A")
            {
                string name = Microsoft.VisualBasic.Interaction.InputBox("Enter folder Name", "Creating new folder", "New Folder");
                if (!string.IsNullOrEmpty(name))
                {
                    if(!Directory.Exists(pathLabel.Text + name))
                    {
                        try
                        {
                            Directory.CreateDirectory(pathLabel.Text + name);
                        }
                        catch(UnauthorizedAccessException)
                        {
                            MessageBox.Show("Access denied", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                            return;
                        }
                        catch (PathTooLongException)
                        {
                            MessageBox.Show("Folder name too long", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                            return;
                        }
                        catch (Exception)
                        {
                            MessageBox.Show("FATAL ERROR!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                            return;
                        }
                    }
                    listFolders(new DirectoryInfo(pathLabel.Text));
                }
            }
        }

        private void deleteButton_Click(object sender, EventArgs e)
        {
            if(foldersListBox.SelectedIndex != -1)
            {
                if(MessageBox.Show("Are you sure? You will delete: " + pathLabel.Text + foldersListBox.SelectedItem.ToString(), "Question", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    if(new DirectoryInfo(pathLabel.Text + foldersListBox.SelectedItem).Attributes.HasFlag(FileAttributes.Directory))
                    {
                        Directory.Delete(pathLabel.Text + foldersListBox.SelectedItem, true);
                    }
                    else
                    {
                        File.Delete(pathLabel.Text + foldersListBox.SelectedItem);
                    }
                    listFolders(new DirectoryInfo(pathLabel.Text));
                }
            }
        }

        private void newTextFileButton_Click(object sender, EventArgs e)
        {
            if (String.IsNullOrEmpty(drive) && pathLabel.Text == "N/A") return;
            string name = Microsoft.VisualBasic.Interaction.InputBox("Enter Text File Name", "Creating New Text File", "New Text File");
            if (String.IsNullOrEmpty(name)) return;
            string txt = pathLabel.Text + name;
            if (!txt.Contains(".txt")) txt += ".txt";
            if (File.Exists(txt)) return;
            try
            {
                File.CreateText(txt).Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            listFolders(new DirectoryInfo(pathLabel.Text));
            Form2 myForm = new Form2();
            myForm.Show();
            myForm.newTextFile(file);
        }
    }
}