using System.Collections.Generic;

namespace StardewModdingAPI.Framework.Input
{
    /// <summary>Manages input state.</summary>
    /// <typeparam name="THandler">The handler type.</typeparam>
    /// <typeparam name="TState">The state type.</typeparam>
    internal interface IInputStateBuilder<out THandler, TState>
        where TState : struct
        where THandler : IInputStateBuilder<THandler, TState>
    {
        /*********
        ** Methods
        *********/
        /// <summary>Reset the tracked state.</summary>
        /// <param name="state">The state from which to reset, or <c>null</c> to get the latest state.</param>
        THandler Reset(TState? state = null);

        /// <summary>Override the states for a set of buttons.</summary>
        /// <param name="overrides">The button state overrides.</param>
        THandler OverrideButtons(IDictionary<SButton, SButtonState> overrides);

        /// <summary>Get the currently pressed buttons.</summary>
        IEnumerable<SButton> GetPressedButtons();

        /// <summary>Get the equivalent state.</summary>
        TState GetState();
    }
}