using System.Collections.Generic;
using System.Numerics;
using System.Threading;
using System.Threading.Tasks;
using Dalamud.Plugin;
using Dalamud.Plugin.Ipc;
using Dalamud.Plugin.Ipc.Exceptions;
using Microsoft.Extensions.Logging;

namespace Questionable.External;

internal sealed class NavmeshIpc
{
	private readonly ILogger<NavmeshIpc> _logger;

	private readonly ICallGateSubscriber<bool> _isNavReady;

	private readonly ICallGateSubscriber<Vector3, Vector3, bool, CancellationToken, Task<List<Vector3>>> _navPathfind;

	private readonly ICallGateSubscriber<List<Vector3>, bool, object> _pathMoveTo;

	private readonly ICallGateSubscriber<object> _pathStop;

	private readonly ICallGateSubscriber<bool> _pathIsRunning;

	private readonly ICallGateSubscriber<List<Vector3>> _pathListWaypoints;

	private readonly ICallGateSubscriber<float, object> _pathSetTolerance;

	private readonly ICallGateSubscriber<Vector3, bool, float, Vector3?> _queryPointOnFloor;

	private readonly ICallGateSubscriber<float> _buildProgress;

	public bool IsReady
	{
		get
		{
			try
			{
				return _isNavReady.InvokeFunc();
			}
			catch (IpcError)
			{
				return false;
			}
		}
	}

	public bool IsPathRunning
	{
		get
		{
			try
			{
				return _pathIsRunning.InvokeFunc();
			}
			catch (IpcError)
			{
				return false;
			}
		}
	}

	public NavmeshIpc(IDalamudPluginInterface pluginInterface, ILogger<NavmeshIpc> logger)
	{
		_logger = logger;
		_isNavReady = pluginInterface.GetIpcSubscriber<bool>("vnavmesh.Nav.IsReady");
		_navPathfind = pluginInterface.GetIpcSubscriber<Vector3, Vector3, bool, CancellationToken, Task<List<Vector3>>>("vnavmesh.Nav.PathfindCancelable");
		_pathMoveTo = pluginInterface.GetIpcSubscriber<List<Vector3>, bool, object>("vnavmesh.Path.MoveTo");
		_pathStop = pluginInterface.GetIpcSubscriber<object>("vnavmesh.Path.Stop");
		_pathIsRunning = pluginInterface.GetIpcSubscriber<bool>("vnavmesh.Path.IsRunning");
		_pathListWaypoints = pluginInterface.GetIpcSubscriber<List<Vector3>>("vnavmesh.Path.ListWaypoints");
		_pathSetTolerance = pluginInterface.GetIpcSubscriber<float, object>("vnavmesh.Path.SetTolerance");
		_queryPointOnFloor = pluginInterface.GetIpcSubscriber<Vector3, bool, float, Vector3?>("vnavmesh.Query.Mesh.PointOnFloor");
		_buildProgress = pluginInterface.GetIpcSubscriber<float>("vnavmesh.Nav.BuildProgress");
	}

	public void Stop()
	{
		try
		{
			_pathStop.InvokeAction();
		}
		catch (IpcError exception)
		{
			_logger.LogWarning(exception, "Could not stop navigating via navmesh");
		}
	}

	public Task<List<Vector3>> Pathfind(Vector3 localPlayerPosition, Vector3 targetPosition, bool fly, CancellationToken cancellationToken)
	{
		try
		{
			_pathSetTolerance.InvokeAction(0.25f);
			return _navPathfind.InvokeFunc(localPlayerPosition, targetPosition, fly, cancellationToken);
		}
		catch (IpcError exception)
		{
			_logger.LogWarning(exception, "Could not pathfind via navmesh");
			return Task.FromException<List<Vector3>>(exception);
		}
	}

	public void MoveTo(List<Vector3> position, bool fly)
	{
		Stop();
		try
		{
			_pathMoveTo.InvokeAction(position, fly);
		}
		catch (IpcError exception)
		{
			_logger.LogWarning(exception, "Could not move via navmesh");
		}
	}

	public Vector3? GetPointOnFloor(Vector3 position, bool unlandable)
	{
		try
		{
			return _queryPointOnFloor.InvokeFunc(position, unlandable, 0.2f);
		}
		catch (IpcError)
		{
			return null;
		}
	}

	public List<Vector3> GetWaypoints()
	{
		if (IsPathRunning)
		{
			try
			{
				return _pathListWaypoints.InvokeFunc();
			}
			catch (IpcError)
			{
				return new List<Vector3>();
			}
		}
		return new List<Vector3>();
	}

	public int GetBuildProgress()
	{
		try
		{
			float num = _buildProgress.InvokeFunc();
			if (num < 0f)
			{
				return 100;
			}
			return (int)(num * 100f);
		}
		catch (IpcError)
		{
			return 0;
		}
	}
}