using System.Collections.Generic;
using System.Threading;
using Cysharp.Threading.Tasks;
using Game.Pathfinding;
using Game.Room;
using UnityEngine;

namespace Game.Player
{
    public interface IPlayer
    {
        string playerName { get; }
        GameObject self { get; }
        PlayerData playerData { get; }
        IRoom room { get; }
        bool isMoving { get; }
        bool IsCanDelete { get; }

        UniTask<bool> WaitMoveRoomAsync(IRoom roo, CancellationToken token);
        void JumpToRoom(IRoom room);
        void Init();
        void Dispose();
    }

    [System.Serializable]
    internal class Player : IPlayer
    {
        private GameObject _self;
        private PlayerData _playerData;
        private IRoom _room;
        PlayerInfo playerInfo;
        private bool _isMoving;

        private IBFSManager _bfsManager;

        public string playerName => this._playerData.playerName;

        public GameObject self => this._self;

        public PlayerData playerData => this._playerData;

        public IRoom room => this._room;

        public bool isMoving => this._isMoving;

        public bool IsCanDelete
        {
            get
            {
                if (this.isMoving || this._room.roomType != RoomType.出生点)
                    return false;
                return true;
            }
        }

        public Player(string name, float jinBei, GameObject go, IBFSManager bfs)
        {
            this._playerData = new PlayerData(name, jinBei, 100);
            this._bfsManager = bfs;

            // view
            this._self = go;
            playerInfo = this._self.GetComponent<PlayerInfo>();
            playerInfo.SetPlayer(this);
            this._isMoving = false;
        }

//        public void SetGo(GameObject gameObject)
//        {
//            this._self = gameObject;
//
//            // view
//            playerInfo = this._self.GetComponent<PlayerInfo>();
//            playerInfo.SetPlayer(this);
//            this._isMoving = false;
//        }

        public async UniTask<bool> WaitMoveRoomAsync(IRoom roo, CancellationToken token)
        {
            this._room?.Quit(this);
            this._room = roo;
//        EventManager.Instance.FireNow(this, new PlayerMoveToRoomEventArgs(this, this._room));

            var wayPoints = this._bfsManager.FindPath(this._self.transform.position, _room.roomInfo.room_Center);

            await UniTask.Yield();
            var moveAsync = await this.MoveAsync(wayPoints, token);
//        Debug.Log("Move finish !!!");
            return moveAsync;
        }

        public void JumpToRoom(IRoom room)
        {
            this._room?.Quit(this);
            this._room = room;

            var endPos = this._room.roomInfo.GetJoinPosition();
            playerInfo.JumpTo(endPos);
        }

        private async UniTask<bool> MoveAsync(List<WayPoint> wayPoint, CancellationToken token)
        {
            if (this._isMoving) return false;

            _isMoving = true;
            var endPos = this._room.roomInfo.GetJoinPosition();

            await playerInfo.MoveAsync(wayPoint, endPos, token);
            this._isMoving = false;
            return true;
        }

        public virtual void Init()
        {
            EventManager.Instance.Subscribe(PlayerJinBeiChange_ToPlayerEventArgs.EventId, PlayerJinbeiChangeEvent);
            EventManager.Instance.Subscribe(ReturnPlayerJinBeiEventArgs.EventId, ReturnPlayerJinBeiEvent);
        }

        public virtual void Dispose()
        {
            EventManager.Instance.Unsubscribe(PlayerJinBeiChange_ToPlayerEventArgs.EventId, PlayerJinbeiChangeEvent);
            EventManager.Instance.Unsubscribe(ReturnPlayerJinBeiEventArgs.EventId, ReturnPlayerJinBeiEvent);

            this._room = null;
            this.playerInfo = null;
            this._isMoving = false;
            this._playerData = null;
            GameObject.DestroyImmediate(this.self);
            this._self = null;
        }

        private void ReturnPlayerJinBeiEvent(object sender, GameEventArgs e)
        {
            var args = e as ReturnPlayerJinBeiEventArgs;
            if (args.player == this)
            {
                this._playerData.ReturnJinBei(args.jinBei);
                EventManager.Instance.FireNow(this, new PlayerJinBeiChange_ToMainUIEventArgs(this));
            }
        }

        private void PlayerJinbeiChangeEvent(object sender, GameEventArgs e)
        {
            var args = e as PlayerJinBeiChange_ToPlayerEventArgs;
            var jinbei = this._playerData.jinbei - args.jinbei;
            if (jinbei >= 0)
            {
                this._playerData.jinbei = jinbei;
                args.callback?.Invoke(true);
            }
            else
                args.callback?.Invoke(false);
        }
    }
}