using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Xaml;
using BeWo.ServiceProxy;
using BS.Shared;
using BS.Shared.Extensions;
using XamlReader = System.Windows.Markup.XamlReader;

namespace BeWo.View
{
    public partial class MessageDialog
    {
        public MessageDialog()
        {
            InitializeComponent();
            DataContext = this;

            OkayButton.Visibility = Visibility.Collapsed;
        }

        public MessageDialog(Action pAfterPasswordConfirmationCallBack)
        {
            IsInConfirmationWithPasswordMode = true;

            AfterPasswordConfirmationCallBack = pAfterPasswordConfirmationCallBack;
            
            InitializeComponent();
            DataContext = this;
            
            OkayButton.IsDefault  = true;
            CountButton.IsDefault = false;
        }
        
        public Action AfterPasswordConfirmationCallBack { get; set; }
        
        public bool IsInConfirmationWithPasswordMode { get; set; }
        
        private ICommand _OpenBrowserCommand;
        public ICommand OpenBrowserCommand => _OpenBrowserCommand ?? (_OpenBrowserCommand = new OpenBrowserCommandImpl());

        public class OpenBrowserCommandImpl : ICommand
        {
            public bool CanExecute(object parameter)
            {
                return true;
            }

            public event EventHandler CanExecuteChanged;

            public void Execute(object parameter)
            {
                if (parameter != null)
                {
                    System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(parameter.ToString()));
                }
            }
        }

        public void SetXaml(string xamlCode)
        {
            try
            {
                if(XamlReader.Parse(xamlCode) is UIElement element)
                {
                    txtMessage.Visibility = Visibility.Collapsed;
                    rootGrid.Children.Add(element);
                }
            }
            catch(Exception e)
            {
                //ignore
            }
        }

        public string Message
        {
            get => txtMessage.Text;
            set => txtMessage.Text = value;
        }

        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
        {
            //DialogResult = true;
            Close();
        }
        private void OpenBrowserCommand_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            if (e.OriginalSource is Hyperlink)
            {
                System.Diagnostics.Process.Start(
                        new System.Diagnostics.ProcessStartInfo((e.OriginalSource as Hyperlink).NavigateUri.ToString()));
            }
        }

        private void OpenBrowserCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = true;
            e.Handled = true;
        }

        private void OkayButton_OnClick(object sender, RoutedEventArgs e)
        {
            ServiceFacade.DoUserServiceAsync(u => u.IsUserValid(BeWoApp.UserName, PasswordBox.Password, null), result =>
            {
                if(result == UserValidationResult.UserValid)
                {
                    AfterPasswordConfirmationCallBack?.Invoke();
                    this.Dispatch(Close);
                }
                else
                {
                    MessageBox.Show("Anmeldeinformationen nicht bekannt. Bitte überprüfen Sie den " + BS.Shared.Translation.Translator.Translate("Benutzernamen") + " und das Passwort!", "Fehler bei der Anmeldung", MessageBoxButton.OK, MessageBoxImage.Exclamation);
                }
            }, true);
        }
    }
}