using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BITKit;
using Microsoft.Extensions.DependencyInjection;
using NodeCanvas.Framework;
using Project.B.CharacterController;
using Project.B.Entities;
using UnityEngine;
using UnityEngine.AI;

namespace Net.Project.B.Quest
{
    public class GuidePlayerToPosition : ActionTask<Transform>
    {
        public BBParameter<LineRenderer> LineRenderer;
        
        private ICharacterController _characterController;
        private NavMeshAgent _agent;
        private readonly NavMeshPath _navMeshPath = new();

        protected override string info =>
            _characterController is null ? "未初始化" : $"状态:{_navMeshPath.status.ToString()}";

        protected override string OnInit()
        {
            LineRenderer.value.enabled = false;
            return base.OnInit();
        }

        protected override void OnExecute()
        {
            LineRenderer.value.enabled = true;
            var playerFactory = BITApp.ServiceProvider.GetService<IPlayerFactory>();
            var player = playerFactory.Entities.First().Value;
            _characterController=player.ServiceProvider.GetRequiredService<ICharacterController>();
        }

        protected override void OnUpdate()
        {
            if (NavMesh.CalculatePath(_characterController.Position, agent.position, NavMesh.AllAreas, _navMeshPath))
            {
                DrawPath(_navMeshPath);
            }
            if(Vector3.Distance(_characterController.Position,agent.position)<1f)
            {
                EndAction(true);   
            }
        }

        protected override void OnStop(bool interrupted)
        {
            base.OnStop(interrupted);
            LineRenderer.value.enabled = false;
        }

        private void DrawPath(NavMeshPath path)
        {
            LineRenderer.value.positionCount = path.corners.Length;
            var newPath = path.corners;
            for (var i = 0; i < path.corners.Length; i++)
            {
                newPath[i] = new Vector3(path.corners[i].x, path.corners[i].y + 0.1f, path.corners[i].z);
            }
            LineRenderer.value.SetPositions(newPath);
        }
    }
}