using System.Collections.Generic;
using Game.Pathfinding;
using JetBrains.Annotations;
using UnityEngine;
using System.Linq;

namespace Game
{
    [Procedure(ProcedureType.GameSceneLogicProcedure)]
    class GameSceneLogicProcedure : ProcedureBase
    {
        public override void OnEnter()
        {
            base.OnEnter();

            // UniTask.Create(async () =>
            // {
            //     await  ResourceManager.Instance.LoadSceneAsync(SceneType.Game.ToString());
            //     EventManager.Instance.FireNow(this,new LoadingGameSceneFinishEventArgs(true));
            // });
            var player = Game.playerManager.CreatePlayer("测试","player");

            var gameGlobalConfig = GameObject.FindObjectOfType<GameGlobalConfig>();
            BFS<WayPoint> bfs = new BFS<WayPoint>(CreateGraph(gameGlobalConfig));
            var beginNode = GetNode(bfs, new Vector2(-29f,-16.5f));
            var endNode = GetNode(bfs, new Vector2(-15.8f,44.3f));
            var findPath = bfs.FindPath(beginNode, endNode);
            var wayPoints = new List<WayPoint>();
            findPath.GetDatas(wayPoints);
            Debug.Log($"Indices:{string.Join(',',findPath.GetNodes().Select(x=> x.index))}");
            Debug.Log($"Positions:{string.Join(',',findPath.GetNodes().Select(x=> x.data.position))}");
            
//            player.MoveAsync()

        }

        [CanBeNull]
        private static Node<WayPoint> GetNode(BFS<WayPoint> bfs, Vector2 position)
        {
            float distance = float.MaxValue;
            Node<WayPoint> targetStartNode=null;
            bfs.GetNode(node =>
            {
                var magnitude = ((Vector2)node.data.position - position).magnitude;
                if (magnitude < distance)
                {
                    distance = magnitude;
                    targetStartNode = node;
                }

                return false;
            });
            return targetStartNode;
        }

        private Graph<WayPoint> CreateGraph(GameGlobalConfig gameGlobalConfig)
        {
           var graph = new WayPointGraph();
            graph.Initialize(gameGlobalConfig.nodeMaps);
            return graph;
        }

        public override void OnLeave()
        {
            base.OnLeave();
            // UIManager.Instance.ShowUI(UIType.GameSceneMainUI);
            // ProcedureManager.Instance.ChangeProcedure(ProcedureType.GameSceneLogicProcedure);
        }
    }
}