//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="ButtonGroup"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//     
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//     
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.Geometries;
using StgSharp.Graphics;
using StgSharp.Mathematics;
using StgSharp.Mathematics.Graphic;

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Transactions;

namespace StgSharp.Controls
{
    public abstract class KeyboardButtonGroup : ControllingItem
    {

        private List<TriggerButton> buttonList;
        private TriggerButton current;

        public KeyboardButtonGroup()
        {
            buttonList = new List<TriggerButton>();
        }

        public bool IsEntity
        {
            get => false;
        }

        public ReadOnlySpan<Vec4> TextureBox
        {
            get => throw new NotSupportedException();
        }

        public Rectangle BoundingBox { get; set; }

        public TriggerButton CurrentButton
        {
            get => current;
        }

        public Vec2 Position { get; set; }

        protected List<TriggerButton> AllButton
        {
            get => buttonList;
        }

        public void AddButton(TriggerButton button)
        {
            buttonList.Add(button);
        }

        public abstract void Confirm();

        public IEnumerator<PlainGeometryMesh> GetEnumerator()
        {
            foreach (TriggerButton item in buttonList) {
                yield return item.Single();
            }
        }

        public void MoveDown()
        {
            TriggerButton button = current;
            while ((button.Down != null) && button.Down.IsDisabled) {
                button = button.Right;
            }
            if (current == button) {
                return;
            }
            current.DeHighlight();
            button.Enable();
            current = button;
        }

        public void MoveLeft()
        {
            TriggerButton button = current;
            while ((button.Left != null) && button.Left.IsDisabled) {
                button = button.Left;
            }
            if (current == button) {
                return;
            }
            current.DeHighlight();
            button.Enable();
            current = button;
        }

        public void MoveRight()
        {
            TriggerButton button = current;
            while ((button.Right != null) && button.Right.IsDisabled) {
                button = button.Right;
            }
            if (current == button) {
                return;
            }
            current.DeHighlight();
            button.Enable();
            current = button;
        }

        public void MoveUp()
        {
            TriggerButton button = current;
            while ((button.Up != null) && button.Up.IsDisabled) {
                button = button.Right;
            }
            if (current == button) {
                return;
            }
            current.DeHighlight();
            button.Enable();
            current = button;
        }

    }
}