using Microsoft.WindowsAPICodePack.Dialogs;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;

namespace Phihong_EVSE_UI_Tool
{
    /// <summary>
    /// SaveSdCard.xaml 的互動邏輯
    /// </summary>
    public partial class SaveSdCard : UserControl
    {
        private Properties.Settings mySettings = Properties.Settings.Default;
        private string sdFolderPath;
        private List<string> toBeSavedFiles = new List<string>();

        public SaveSdCard()
        {
            InitializeComponent();

            sdFolderPath = mySettings.SdCardPath;
            uxSdBrowseTextBox.Text = sdFolderPath;
        }

        private void SaveToSdCard()
        {
            if (uxSaveAllRadioButton.IsChecked.Value)
            {
                toBeSavedFiles = new List<string>(Utility.ChangedFiles.Keys);
            }
            else
            {
                toBeSavedFiles = (from p in Utility.ChangedFiles
                                  where p.Value
                                  select p.Key).ToList<string>();
            }

            Directory.CreateDirectory(Path.Combine(sdFolderPath, Utility.SDCARD_SUBDIR));

            foreach (string fileName in toBeSavedFiles)
            {
                File.Copy(Path.Combine(Utility.OUTPUT_DIRECTORY, fileName),
                          Path.Combine(sdFolderPath, Utility.SDCARD_SUBDIR, fileName), true);
            }

            foreach (string resName in Utility.REQ_FILELIST)
            {
                Uri srcPath = new Uri(Path.Combine(Utility.REQ_PARENTFOLDER, resName), UriKind.Relative);
                Utility.CopyFileFromResource(srcPath, Path.Combine(sdFolderPath, Utility.SDCARD_SUBDIR, resName));
            }

            switch (toBeSavedFiles.Count())
            {
                case 0:
                    uxMessageTextBlock.Text = "Saved no image and 11 required files to SD card";
                    break;
                case 1:
                    uxMessageTextBlock.Text = "Saved 1 image and 11 required files to SD card";
                    break;
                default:
                    uxMessageTextBlock.Text = "Saved " + toBeSavedFiles.Count() + " images and 11 required files to SD card";
                    break;
            }

            System.Diagnostics.Process process = new System.Diagnostics.Process();
            process.StartInfo.FileName = Path.Combine(sdFolderPath, Utility.SDCARD_SUBDIR);
            process.Start();
        }

        private void uxBrowseButton_Click(object sender, RoutedEventArgs e)
        {
            Button btn = e.Source as Button;
            if (btn is null)
            {
                return;
            }

            switch (btn.Tag.ToString())
            {
                case "Browse":
                    var dlg = new CommonOpenFileDialog()
                    {
                        IsFolderPicker = true,
                        Title = "Locate the SD card",
                    };
                    if (dlg.ShowDialog() == CommonFileDialogResult.Ok)
                    {
                        sdFolderPath = dlg.FileName;
                        uxSdBrowseTextBox.Text = sdFolderPath;
                        mySettings.SdCardPath = sdFolderPath;
                        mySettings.Save();
                    }
                    break;
                case "Save":
                    if(!Directory.Exists(sdFolderPath))
                    {
                        MessageBox.Show("Please locate the SD card path first",
                                        "Invalid Path", MessageBoxButton.OK, MessageBoxImage.Error);
                        break;
                    }
                    SaveToSdCard();
                    break;
                default:
                    break;
            }


            
        }
    }
}