using System.Collections.Generic;

namespace PKHeX.Core;

/// <summary>
/// Slot Viewer that shows many slots of <see cref="PKM"/> data.
/// </summary>
/// <typeparam name="T">Object that displays the <see cref="PKM"/> slot.</typeparam>
public interface ISlotViewer<T>
{
    /// <summary>
    /// Current index the viewer is viewing.
    /// </summary>
    int ViewIndex { get; }

    /// <summary>
    /// Notification that the <see cref="previous"/> slot is no longer the last interacted slot.
    /// </summary>
    /// <param name="previous">Last interacted slot</param>
    void NotifySlotOld(ISlotInfo previous);

    /// <summary>
    /// Notification that the <see cref="slot"/> has just been interacted with.
    /// </summary>
    /// <param name="slot">Last interacted slot</param>
    /// <param name="type">Last interacted slot interaction type</param>
    /// <param name="pk">Last interacted slot interaction data</param>
    void NotifySlotChanged(ISlotInfo slot, SlotTouchType type, PKM pk);

    /// <summary>
    /// Gets the information for the requested slot's view picture.
    /// </summary>
    /// <param name="view"></param>
    ISlotInfo GetSlotData(T view);

    /// <summary>
    /// Gets the index of the <see cref="T"/> view within the <see cref="ISlotViewer{T}"/>'s list of slots.
    /// </summary>
    /// <param name="slot"></param>
    int GetViewIndex(ISlotInfo slot);

    /// <summary>
    /// List of <see cref="T"/> views the <see cref="ISlotViewer{T}"/> is showing.
    /// </summary>
    IList<T> SlotPictureBoxes { get; }

    /// <summary>
    /// Save data the <see cref="ISlotViewer{T}"/> is showing data from.
    /// </summary>
    SaveFile SAV { get; }
}