using GSF.TimeSeries.UI.DataModels;

namespace GSF.TimeSeries.UI.ViewModels
{
    /// <summary>
    /// Class to hold bindable <see cref="SecurityGroup"/> collection.
    /// </summary>
    internal class Protocols : PagedViewModelBase<Protocol, int>
    {

        #region [ Constructors ]

        /// <summary>
        /// Creates an instance of <see cref="Protocols"/> class.
        /// </summary>
        /// <param name="itemsPerPage">Integer value to determine number of items per page.</param>
        /// <param name="autoSave">Boolean value to determine is user changes should be saved automatically.</param>
        public Protocols(int itemsPerPage, bool autoSave = true)
            : base(itemsPerPage, autoSave)
        {

        }

        #endregion

        #region [ Properties ]

        /// <summary>
        /// Gets flag that determines if <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/> is a new record.
        /// </summary>
        public override bool IsNewRecord
        {
            get
            {
                return CurrentItem.ID == 0;
            }
        }

        #endregion

        #region [ Methods ]

        /// <summary>
        /// Gets the primary key value of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.
        /// </summary>
        /// <returns>The primary key value of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.</returns>
        public override int GetCurrentItemKey()
        {
            return CurrentItem.ID;
        }

        /// <summary>
        /// Gets the string based named identifier of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.
        /// </summary>
        /// <returns>The string based named identifier of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.</returns>
        public override string GetCurrentItemName()
        {
            return CurrentItem.Name;
        }

        /// <summary>
        /// Creates a new instance of <see cref="Protocols"/> and assigns it to CurrentItem.
        /// </summary>
        public override void Clear()
        {
            base.Clear();
            CurrentItem = ItemsSource[0];
        }

        #endregion
        
    }
}