using Cis.Application.Cb;
using Cis.Application.Cm;
using Cis.Application.Tb;
using System.Collections.Concurrent;

namespace Cis.Application.Core;

public class CameraDataCenter
{
	#region Attr

	private readonly SqlSugarRepository<CbCamera> _cbCameraRep;
	private readonly SqlSugarRepository<CmMarkLabel> _cmMarkLableRep;
	private readonly SqlSugarRepository<TbPtzCamera> _tbPtzCameraRep;
	private readonly PtzServerApi _ptzServerApi;
	private readonly CameraDataOptions options = App.GetOptions<CameraDataOptions>();

	private Thread _thread { get; set; }

	/// <summary>
	/// (cbCameraId, MarkSearcherBase)
	/// </summary>
	private ConcurrentDictionary<long, MarkSearcherBase> _markSearcherDict { get; set; } = new();

	/// <summary>
	/// (cbCameraId, cbCameraIp)
	/// </summary>
	private Dictionary<long, string> _cbCameraId2IpDict { get; set; } = new();

	/// <summary>
	/// (cameraIp, TbPtzCamera)
	/// </summary>
	private ConcurrentDictionary<string, TbPtzCamera> _tbPtzCameraDict { get; set; } = new();

	/// <summary>
	/// (cameraIp, PtzInfo)
	/// </summary>
	private ConcurrentDictionary<string, PtzInfo> _cameraPtzInfoDict { get; set; } = new();

	#endregion Attr

	public CameraDataCenter()
	{
		_cbCameraRep = App.GetService<SqlSugarRepository<CbCamera>>();
		_cmMarkLableRep = App.GetService<SqlSugarRepository<CmMarkLabel>>();
		_tbPtzCameraRep = App.GetService<SqlSugarRepository<TbPtzCamera>>();
		_ptzServerApi = App.GetService<PtzServerApi>();
		Init();
	}

	private void Init()
	{
		if (!options.LazyInit)
		{
			List<TbPtzCamera> list = _tbPtzCameraRep.GetList();
			// 根据 Ip 去重
			foreach (TbPtzCamera item in list)
			{
				if (!_tbPtzCameraDict.ContainsKey(item.Ip))
					_tbPtzCameraDict[item.Ip] = item;
			}
		}

		// 初始化 thread
		_thread = new Thread(WorkLoop)
		{
			IsBackground = true// 设置后台线程
		};
		_thread.Start();
	}

	#region Loop

	/// <summary>
	/// 循环运行
	/// </summary>
	private void WorkLoop()
	{
		while (true)
		{
			RefreshPtzInfoByApi();
			RefreshMarkSearcher();
			Thread.Sleep(options.LoopInterval);
		}
	}

	private void RefreshPtzInfoByApi()
	{
		foreach (TbPtzCamera item in _tbPtzCameraDict.Values)
		{
			PtzInfo ptzInfo = _ptzServerApi.GetPtzInfo(item.CameraId);
			_cameraPtzInfoDict[item.Ip] = ptzInfo;
		}
	}

	private void RefreshMarkSearcher()
	{
		foreach (KeyValuePair<long, MarkSearcherBase> pair in _markSearcherDict)
		{
			long cameraId = pair.Key;
			MarkSearcherBase markSearcher = pair.Value;
			string cameraIp = _cbCameraId2IpDict[cameraId];
			if (cameraIp == null) continue;
			PtzInfo ptzInfo = _cameraPtzInfoDict[cameraIp];
			if (ptzInfo == null) continue;
			markSearcher.UpdateCameraCalcInfo(ptzInfo);
			List<MarkLabelCalcResult> resultList = markSearcher.Calc();
		}
	}

	#endregion Loop

	#region external call

	/// <summary>
	/// 激活 cbCamera 进入运算
	/// </summary>
	/// <param name="cameraId"></param>
	/// <returns></returns>
	public bool ActiveCamera(long cameraId)
	{
		CbCamera cbCamera = _cbCameraRep.GetById(cameraId);
		if (cbCamera == null) return false;
		TbPtzCamera tbPtzCamera;
		string cameraIp = cbCamera.Ip;
		if (!_tbPtzCameraDict.IsExistKey(cameraIp))
		{
			tbPtzCamera = _tbPtzCameraRep.GetFirst(u => u.Ip == cameraIp);
			if (tbPtzCamera == null) return false;
			_tbPtzCameraDict[cameraIp] = tbPtzCamera;
		}
		else
		{
			tbPtzCamera = _tbPtzCameraDict[cameraIp];
		}
		_cbCameraId2IpDict[cbCamera.Id] = cameraIp;
		CameraCalcInfo cameraCalcInfo = CameraCalcInfo.New(cameraId, _ptzServerApi.GetPtzInfo(tbPtzCamera.Id));
		HikMarkSeacher markSeacher = new(cameraCalcInfo);
		List<CmMarkLabel> cmMarkLabelList = _cmMarkLableRep.GetList(u => u.CbCameraId == cameraId);
		foreach (CmMarkLabel item in cmMarkLabelList)
		{
			MarkLabelCalcInfo markLabelCalcInfo = MarkLabelCalcInfo.New(
				item.Id,
				PtzInfo.New(item.PanPosition, item.TiltPosition, item.ZoomPosition),
				item.CanvasWidth,
				item.CanvasHeight,
				item.CanvasLeft,
				item.CanvasTop
			);
			markSeacher.AddMarkLabelCalcInfo(markLabelCalcInfo);
		}
		_markSearcherDict[cameraId] = markSeacher;
		return true;
	}

	/// <summary>
	/// 解除 cbCamera 进入运算
	/// </summary>
	/// <param name="cameraId"></param>
	/// <returns></returns>
	public bool DeActiveCamera(long cameraId)
	{
		return false;
	}

	public bool UpdateCamera(long cameraId, long markLabelId)
	{
		return false;
	}

	#endregion external call
}