using System;
using System.ComponentModel;

namespace Wino.Core.Domain.Interfaces
{
    public interface IStatePersistanceService : INotifyPropertyChanged
    {
        event EventHandler<string> StatePropertyChanged;

        /// <summary>
        /// True when there is an active renderer for selected mail.
        /// </summary>
        bool IsReadingMail { get; set; }

        /// <summary>
        /// Shell's app bar title string.
        /// </summary>
        string CoreWindowTitle { get; set; }

        /// <summary>
        /// When only reader page is visible in small sized window.
        /// </summary>
        bool IsReaderNarrowed { get; set; }

        /// <summary>
        /// Should display back button on the shell title bar.
        /// </summary>
        bool IsBackButtonVisible { get; }


        /// <summary>
        /// Setting: Opened pane length for the navigation view.
        /// </summary>
        double OpenPaneLength { get; set; }

        /// <summary>
        /// Whether the mail rendering page should be shifted from top to adjust the design
        /// for standalone EML viewer or not.
        /// </summary>
        bool ShouldShiftMailRenderingDesign { get; set; }

        /// <summary>
        /// Setting: Mail list pane length for listing mails.
        /// </summary>
        double MailListPaneLength { get; set; }
    }
}