using EC.Onvif.Common;
using EC.Onvif.Device;
using EC.Onvif.Imaging;
using EC.Onvif.Media;
using EC.Onvif.PTZ;
using System;
using System.Threading.Tasks;
using Capabilities = EC.Onvif.Common.Capabilities;

namespace EC.Onvif
{
	public class OnvifClient
	{
		#region Attr

		public string Hostname { get; private set; }

		public string Username { get; private set; }

		public string Password { get; private set; }

		public static float atomDist { get; private set; } = 0.01f;

		public static float atomSpeed { get; private set; } = 0.1f;

		#endregion Attr

		#region Client Attr

		private DeviceClient Device { get; set; }

		private MediaClient Media { get; set; }

		private PTZClient PTZ { get; set; }

		private ImagingClient Imaging { get; set; }

		private Capabilities Caps { get; set; }

		#endregion Client Attr

		#region Settings Attr

		private string profileToken { get; set; }

		private string videoSourceToken { get; set; }

		#endregion Settings Attr

		public OnvifClient(string hostname, string username, string password)
		{
			Hostname = hostname;
			Username = username;
			Password = password;
		}

		public async Task Init()
		{
			try
			{
				Device = await OnvifClientFactory.CreateDeviceClientAsync(Hostname, Username, Password);
				Media = await OnvifClientFactory.CreateMediaClientAsync(Hostname, Username, Password);
				PTZ = await OnvifClientFactory.CreatePTZClientAsync(Hostname, Username, Password);
				Imaging = await OnvifClientFactory.CreateImagingClientAsync(Hostname, Username, Password);
				var profiles = await Media.GetProfilesAsync();
				var videoSources = await Media.GetVideoSourcesAsync();

				foreach (var profile in profiles.Profiles)
				{
					if (string.IsNullOrEmpty(profileToken))
					{
						profileToken = profile.token;
						break;
					}
				}

				foreach (var source in videoSources.VideoSources)
				{
					if (string.IsNullOrEmpty(videoSourceToken))
					{
						videoSourceToken = source.token;
						break;
					}
				}

				Caps = (await Device.GetCapabilitiesAsync(new CapabilityCategory[] { CapabilityCategory.All })).Capabilities;
			}
			catch (Exception)
			{
				throw;
			}
		}

		#region DeviceClient

		public bool IsDeviceContected()
		{
			return Device != null;
		}

		#endregion DeviceClient

		#region MediaClient

		public bool IsMediaContected()
		{
			bool ret = IsDeviceContected();
			return ret;
		}

		private StreamSetup RtspStreamSetup { get; } = new()
		{
			Stream = StreamType.RTPUnicast,
			Transport = new() { Protocol = TransportProtocol.RTSP }
		};

		public async Task<string> GetStreamUri()
		{
			MediaUri mediaUri = await Media.GetStreamUriAsync(RtspStreamSetup, profileToken);
			return mediaUri.Uri;
		}

		public async Task<string> GetSnapshotUri()
		{
			MediaUri mediaUri = await Media.GetSnapshotUriAsync(profileToken);
			return mediaUri.Uri;
		}

		#endregion MediaClient

		#region PTZClient

		public bool IsPTZContected()
		{
			bool ret = IsDeviceContected() && (PTZ != null) && !string.IsNullOrEmpty(profileToken);
			return ret;
		}

		/// <summary>
		/// 绝对移动
		/// </summary>
		/// <param name="pan"></param>
		/// <param name="tilt"></param>
		/// <param name="zoom"></param>
		/// <returns></returns>
		public async Task AbsoluteMove(float pan, float tilt, float zoom)
		{
			await PTZ.AbsoluteMoveAsync(profileToken, new PTZVector
			{
				PanTilt = new Vector2D
				{
					x = pan,
					y = tilt
				},
				Zoom = new Vector1D
				{
					x = zoom
				}
			}, null);
		}

		/// <summary>
		/// 相对移动
		/// </summary>
		/// <param name="pan"></param>
		/// <param name="tilt"></param>
		/// <param name="zoom"></param>
		public async Task RelativeMove(float pan, float tilt, float zoom)
		{
			await PTZ.RelativeMoveAsync(profileToken, new PTZVector
			{
				PanTilt = new Vector2D
				{
					x = pan,
					y = tilt
				},
				Zoom = new Vector1D
				{
					x = zoom
				}
			}, null);
		}

		/// <summary>
		///	持续移动
		/// </summary>
		/// <param name="pan">0~100</param>
		/// <param name="tilt">0~100</param>
		/// <param name="zoom">0~100</param>
		public async Task ContinuousMove(float pan, float tilt, float zoom)
		{
			await PTZ.ContinuousMoveAsync(profileToken, new PTZSpeed
			{
				PanTilt = new Vector2D
				{
					x = pan,
					y = tilt
				},
				Zoom = new Vector1D
				{
					x = zoom
				}
			}, null);
		}

		public async Task StopMove()
		{
			await PTZ.StopAsync(profileToken, true, true);
		}

		public async Task<PTZStatus> GetStatus()
		{
			return await PTZ.GetStatusAsync(profileToken);
		}

		#endregion PTZClient

		#region ImagingClient

		public bool IsImagingContected()
		{
			bool ret = IsDeviceContected();
			return ret;
		}

		public async Task FocusAbsoluteMove(float position)
		{
			await Imaging.MoveAsync(videoSourceToken, new FocusMove
			{
				Absolute = new AbsoluteFocus
				{
					Position = position,
					//Speed = 1f,
					//SpeedSpecified = true
				}
			});
		}

		public async Task FocusRelativeMove(float distance)
		{
			await Imaging.MoveAsync(videoSourceToken, new FocusMove
			{
				Relative = new RelativeFocus
				{
					Distance = distance,
					//Speed = 1f,
					//SpeedSpecified = true
				}
			});
		}

		public async Task FocusContinuousMove(float speed)
		{
			await Imaging.MoveAsync(videoSourceToken, new FocusMove
			{
				Continuous = new ContinuousFocus
				{
					Speed = speed
				}
			});
		}

		public async Task FocusStopMove()
		{
			await Imaging.StopAsync(videoSourceToken);
		}

		#endregion ImagingClient
	}
}