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

namespace Game.Boss
{
    public interface IBossManager
    {
        IReadOnlyList<IBoss> bosses { get; }
        IBFSManager bfsManager { get; }

        UniTask MoveToKillPlayerAsync(IReadOnlyList<IRoom> rooms, CancellationToken token);
        void DeleteBoss();
    }

    public class BossManager : ManagerBase, IBossManager
    {
        private List<IBoss> _bosses;
        private IBFSManager _bfsManager;
        private string bossAssetName = AssetConstPath.Assets_GameRes_Prefabs_Role_boss1;

        public IReadOnlyList<IBoss> bosses => this._bosses;

        public IBFSManager bfsManager => this._bfsManager;

        public BossManager(IBFSManager bfsManager)
        {
            this._bfsManager = bfsManager;
        }

        public async UniTask MoveToKillPlayerAsync(IReadOnlyList<IRoom> rooms, CancellationToken token)
        {
            this._bosses = new List<IBoss>();
            foreach (var room in rooms)
            {
                var gameObject = Game.resourceManager.LoadGameObjectSync(bossAssetName);
                IBoss boss = new Boss(gameObject, room, this._bfsManager);
                boss.Init();
                _bosses.Add(boss);
            }

            List<UniTask> uniTasks = new List<UniTask>();
            foreach (var boss in this._bosses)
            {
                var uniTask = boss.WaitMoveRoomAndKillAsync(token);
                uniTasks.Add(uniTask);
                await UniTask.Delay(100);
            }

            await UniTask.WhenAll(uniTasks);
        }


        public void DeleteBoss()
        {
            foreach (var boss in this._bosses)
            {
                boss.Dispose();
            }

            this._bosses.Clear();
        }

        protected override void OnDispose()
        {
            base.OnDispose();
            if (this._bosses != null)
                foreach (var boss in this._bosses)
                {
                    boss.Dispose();
                }

            this._bfsManager = null;
            this._bosses = null;
        }
    }
}