using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using VisionCommon;

namespace VisionUI.Camera {
    /// <summary>
    /// 메인 카메라 뷰 매니저
    /// </summary>
    public class MainCameraViewManager {
        private static Dictionary<eDisplayType, MainCameraView> _MainCameraViews = new Dictionary<eDisplayType, MainCameraView>();

        private static object LockObj = new object();

        private static MainCameraViewManager _instance = null;

        /// <summary>
        /// 싱글톤 패턴 객체
        /// </summary>
        public static MainCameraViewManager Instance {
            get {
                lock (LockObj) {
                    if (_instance == null) {
                        _instance = new MainCameraViewManager();
                    }
                    return _instance;
                }
            }
        }

        /// <summary>
        /// 메인 카메라 뷰 가져오기
        /// </summary>
        /// <param name="displayType">디스플레이 타입</param>
        /// <returns></returns>
        public MainCameraView GetMainCameraView(eDisplayType displayType) {
            foreach (var itemPairs in _MainCameraViews) {
                if (itemPairs.Key == displayType) {
                    return itemPairs.Value;
                }
            }

            _MainCameraViews[displayType] = new MainCameraView(displayType);
            return _MainCameraViews[displayType];
        }

        /// <summary>
        /// 생성자
        /// </summary>
        public MainCameraViewManager() {
            _instance = this;
        }

        /// <summary>
        /// 메인 카메라 뷰 해제/제거
        /// </summary>
        /// <param name="displayType">디스플레이 타입</param>
        public void DisposeMainCameraView(eDisplayType displayType) {
            if (_MainCameraViews.ContainsKey(displayType)) {
                _MainCameraViews.Remove(displayType);
            }
        }
    }
}