using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.UI.Xaml.Controls;
using Wino.Core.Domain;
using Wino.Core.Domain.Entities.Mail;
using Wino.Core.Domain.Enums;
using Wino.Core.Domain.Models.Folders;

namespace Wino.Dialogs;

public sealed partial class SystemFolderConfigurationDialog : ContentDialog
{
    private bool canDismissDialog = false;

    public SystemFolderConfiguration? Configuration { get; set; }
    public List<MailItemFolder> AvailableFolders { get; }

    public MailItemFolder? Sent { get; set; }
    public MailItemFolder? Draft { get; set; }
    public MailItemFolder? Archive { get; set; }
    public MailItemFolder? Junk { get; set; }
    public MailItemFolder? Trash { get; set; }

    public SystemFolderConfigurationDialog(List<MailItemFolder> availableFolders)
    {
        InitializeComponent();

        AvailableFolders = availableFolders;

        Sent = AvailableFolders.Find(a => a.SpecialFolderType == SpecialFolderType.Sent);
        Draft = AvailableFolders.Find(a => a.SpecialFolderType == SpecialFolderType.Draft);
        Archive = AvailableFolders.Find(a => a.SpecialFolderType == SpecialFolderType.Archive);
        Junk = AvailableFolders.Find(a => a.SpecialFolderType == SpecialFolderType.Junk);
        Trash = AvailableFolders.Find(a => a.SpecialFolderType == SpecialFolderType.Deleted);
    }

    private void DialogClosing(ContentDialog sender, ContentDialogClosingEventArgs args)
    {
        args.Cancel = !canDismissDialog;
    }

    private void CancelClicked(ContentDialog sender, ContentDialogButtonClickEventArgs args)
        => canDismissDialog = true;

    private void SaveClicked(ContentDialog sender, ContentDialogButtonClickEventArgs args)
    {
        ValidationErrorTextBlock!.Text = string.Empty;
        ValidationErrorBorder.Visibility = Microsoft.UI.Xaml.Visibility.Collapsed;

        var allSpecialFolders = new List<MailItemFolder?>()
        {
            Sent, Draft, Archive, Trash, Junk
        };

        if (allSpecialFolders.Any(a => a != null && a.SpecialFolderType == SpecialFolderType.Inbox))
            ValidationErrorTextBlock!.Text = Translator.SystemFolderConfigDialogValidation_InboxSelected;

        if (new HashSet<Guid>(allSpecialFolders.Where(a => a != null).Select(x => x!.Id)).Count != allSpecialFolders.Where(a => a != null).Count())
            ValidationErrorTextBlock!.Text = Translator.SystemFolderConfigDialogValidation_DuplicateSystemFolders;

        if (!string.IsNullOrEmpty(ValidationErrorTextBlock!.Text))
            ValidationErrorBorder.Visibility = Microsoft.UI.Xaml.Visibility.Visible;

        // Check if we can save.
        if (string.IsNullOrEmpty(ValidationErrorTextBlock!.Text))
        {
            var configuration = new SystemFolderConfiguration(Sent, Draft, Archive, Trash, Junk);

            canDismissDialog = true;
            Configuration = configuration;
        }
    }
}