using Clave;

namespace Glass.UnitTests
{
    /// <summary>
    /// A keyboard manager with one control focused, fed keys through a tracker the way a host would.
    /// </summary>
    public class FocusedKeys
    {
        public readonly KeyboardManager Manager = new KeyboardManager();
        public readonly KeyTracker Tracker = new KeyTracker();

        public FocusedKeys(Control control) : this(control, control)
        {
        }

        /// <summary>
        /// Puts <paramref name="root"/> in the manager and focuses <paramref name="focused"/>, which is somewhere
        /// beneath it.
        /// </summary>
        public FocusedKeys(Control root, Control focused)
        {
            Manager.Controls.Add(root);
            Manager.TrySetFocus(focused);
        }

        /// <summary>
        /// Puts <paramref name="scope"/> in a manager and enters it, as whatever opens a dialog would.
        /// </summary>
        public static FocusedKeys Enter(Control scope)
        {
            var returnMe = new FocusedKeys(scope, null);
            returnMe.Manager.EnterScope(scope);

            return returnMe;
        }

        public bool Press(KeyCode key)
        {
            return Manager.KeyDown(Tracker.KeyDown(key, KeyCode.None, isRepeat: false));
        }

        public bool Repeat(KeyCode key)
        {
            return Manager.KeyDown(Tracker.KeyDown(key, KeyCode.None, isRepeat: true));
        }

        public bool Release(KeyCode key)
        {
            return Manager.KeyUp(Tracker.KeyUp(key));
        }
    }
}