using LampInspectionMachine.Cameralibs.HKCamera;
using LampInspectionMachine.Interfaces;
using LampInspectionMachine.Model;
using MvCamCtrl.NET;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace LampInspectionMachine.Cameralibs
{
    public class CameraService
    {
        private readonly Dictionary<Guid, ICamera> _CameraCollection;

        public CameraService()
        {
            _CameraCollection = new Dictionary<Guid, ICamera>();
        }

        public bool CreateCamera(Guid id ,CameraInfo cameraInfo)
        {
            ICamera  camera = new MvCamera(id, cameraInfo.CameraName, cameraInfo.SerialNumber);
            

            if ( _CameraCollection.ContainsKey(id) )
            {
                var currenCamera = _CameraCollection[id];
                currenCamera.CloseDevice();
            }
            else
            {
                _CameraCollection.Add(id, camera);
            }
            return true;
        }

        public Task<bool> CreateCameraAsync(Guid id, CameraInfo cameraInfo)
        {
            ICamera camera= new MvCamera(id, cameraInfo.CameraName, cameraInfo.SerialNumber);
            if ( _CameraCollection.ContainsKey(id) )
            {
                var currenCamera = _CameraCollection[id];
                currenCamera.CloseDevice();
            }
            else
            {
                _CameraCollection.Add(id, camera);
            }
            return Task.FromResult(true);
        }

        public ICamera GetCamera(Guid id)
        {
            return _CameraCollection[ id ];
        }

        public Task<ICamera> GetCameraAsync(Guid id)
        {
            return Task.FromResult(_CameraCollection[ id ]);
        }

        public void UnRegisterCamera(Guid id)
        {
            if ( _CameraCollection.ContainsKey(id) )
            {
                var camera = _CameraCollection[id];
                camera.CloseDevice();
            }
        }

        public Task UnRegisterCameraAsync(Guid id)
        {
            if ( _CameraCollection.ContainsKey(id) )
            {
                var camera = _CameraCollection[id];
                camera.CloseDevice();
            }
            return Task.CompletedTask;
        }

        public void Dispose()
        {
            foreach ( var camera in _CameraCollection )
            {
                try
                {
                    camera.Value.CloseDevice();
                }
                catch ( Exception )
                {

                }
            }
        }
    }
}