using Microsoft.Office.Core;
using Microsoft.Win32;
using PDF_Master.Helper;
using PDF_Master.Model;
using PDF_Master.Properties;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Threading;

namespace PDF_Master.ViewModels.HomePanel.ChatGPTAI
{
    public class ChatGPTAITranslationContentViewModel : BindableBase, INavigationAware
    {

        public HomeContentViewModel homeContentViewModel = null;

        public string fromlanguage = ChatGTPAIHelper.UpdateLanguagebType(0);

        public string tolanguage = ChatGTPAIHelper.UpdateLanguagebType(1);

        private int fromlanguageIndex = 0;
        public int FromlanguageIndex
        {
            get { return fromlanguageIndex; }
            set
            {
                SetProperty(ref fromlanguageIndex, value);
                fromlanguage = ChatGTPAIHelper.UpdateLanguagebType(value);
            }
        }

        private int tolanguageIndex = 0;
        public int TolanguageIndex
        {
            get { return tolanguageIndex; }
            set
            {
                SetProperty(ref tolanguageIndex, value);
                tolanguage = ChatGTPAIHelper.UpdateLanguagebType(value + 1);
            }
        }

        private Visibility errorTipVisible=Visibility.Collapsed;
        public Visibility ErrorTipVisible
        {
            get
            {
                return errorTipVisible;
            }
            set
            {
                SetProperty(ref errorTipVisible, value);
                if (value == Visibility.Visible) {
                    dispatcherTimer.Start();
                }
            }
        }

        private string errorTipText = "The uploaded file cannot exceed 10MB";
        public string ErrorTipText
        {
            get
            {
                return errorTipText;
            }
            set
            {
                SetProperty(ref errorTipText, value);
            }
        }
        public static List<string> FromlanguageFamily { set; get; } = new List<string>();
        private void GetFromlanguageOrigin()
        {
            FromlanguageFamily.Clear();
            FromlanguageFamily = ChatGTPAIHelper.SetFromlanguageOrigin();
        }
        public List<string> TolanguageFamily { set; get; } = new List<string>();

        private DispatcherTimer dispatcherTimer = new DispatcherTimer();

        private void GetTolanguageOrigin()
        {
            TolanguageFamily.Clear();
            TolanguageFamily = ChatGTPAIHelper.SetTolanguageOrigin();
        }
        public DelegateCommand SelectFilesCommand { get; set; }
        public ChatGPTAITranslationContentViewModel()
        {
            SelectFilesCommand = new DelegateCommand(selectFiles);

            dispatcherTimer.Interval = TimeSpan.FromSeconds(5);
            dispatcherTimer.Tick += Dispatchertimer_Tick;
            init();
        }

        private void init()
        {
            GetFromlanguageOrigin();
            GetTolanguageOrigin();
        }

        private void Dispatchertimer_Tick(object sender, EventArgs e)
        {
            ErrorTipVisible = Visibility.Collapsed;
            dispatcherTimer.Stop();
        }

        public async void selectFiles()
        {
            string word = Properties.Resources.wordex;
            string pdf = Properties.Resources.pdf;
            string allfiles = pdf + word;
            OpenFileDialog dialog = new OpenFileDialog();
            //dialog.Multiselect = true;
            dialog.Filter = string.Format($"Files({allfiles.Replace(";", ",")}|{allfiles})|" +
           $"Pdf({pdf})|{pdf}|" +
           $"Microsoft Office Word({word})|{word}");
            if ((bool)dialog.ShowDialog())
            {
                FileInfo fileInfo = new FileInfo(dialog.FileName);
                if ((((float)fileInfo.Length) / 1024 / 1024) > 30) {
                    ErrorTipVisible = Visibility.Visible;
                    return;
                }
                string newfile = "";
                await Task.Run(async delegate
                {
                    newfile = await ChatGTPAIHelper.fileTranslate(dialog.FileName, fromlanguage, tolanguage);
                   
                });
                if (!string.IsNullOrEmpty(newfile))
                {
                    if (File.Exists(newfile))
                    {
                        if (homeContentViewModel != null)
                        {
                            homeContentViewModel.OpenFile(new string[] { newfile });
                            return;
                        }
                    }
                }
                //newfile code
                ErrorTipVisible =Visibility.Visible;
            }
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            navigationContext.Parameters.TryGetValue<HomeContentViewModel>(ParameterNames.HomeContentViewModel, out homeContentViewModel);
        }

        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {

        }
    }
}