using System;
using System.Collections.Generic;
using Core;
using UnityEngine;
using UnityEngine.Events;

namespace Script.Gameplay.Global
{
    public struct TransformSnapshot
    {
        public Vector3 Position;
        public Quaternion Rotation;
        public Vector3 Scale;

        public TransformSnapshot(Transform t)
        {
            Position = t.position;
            Rotation = t.rotation;
            Scale = t.localScale;
        }
    }

    public struct StackOverflowBUGLog
    {
        public TransformSnapshot TargetSnapshot;
        public int BeTriggerCycle; // 触发时的游戏循环次数

        public StackOverflowBUGLog(Transform targetTransform, int beTriggerCycle)
        {
            TargetSnapshot = new TransformSnapshot(targetTransform);
            BeTriggerCycle = beTriggerCycle;
        }
    }

    public class BUGManager : MonoSingleton<BUGManager>
    {
        [SerializeField] private GameObject bugCubePrefab;

        [Header("天核区域检测设置")] [SerializeField] private Vector3 AreaCenter = Vector3.zero;
        [SerializeField] private Vector3 AreaSize = new Vector3(50, 50, 50);
        public UnityEvent OnBugHappenedInArea;

        private List<StackOverflowBUGLog> stackOverflowBugLogs = new List<StackOverflowBUGLog>();
        private List<GameObject> bugCubes = new List<GameObject>();

        private void Start()
        {
            OnBugHappenedInArea.AddListener(() => { Debug.Log("天核区域内检测到BUG立方体！"); });

            GameManager.Instance.OnGameStart += GenerateBugCubes;
        }
        

        public void LogStackOverflowBug(Transform targetTransform)
        {
            int beTriggerCycle = GameDataManager.Instance.TotalLoopCount;
            stackOverflowBugLogs.Add(new StackOverflowBUGLog(targetTransform, beTriggerCycle));
        }

        public void GenerateBugCubes()
        {
            foreach (var bugCube in bugCubes)
            {
                Destroy(bugCube);
            }
            bugCubes.Clear();
            int currentCycle = GameDataManager.Instance.TotalLoopCount;

            // 记录的BUG位置生成BUG立方体
            foreach (var log in stackOverflowBugLogs)
            {
                if (bugCubePrefab != null)
                {
                    // 仅在下一、二次循环生成BUG立方体
                    if (currentCycle - log.BeTriggerCycle >= 0 && currentCycle - log.BeTriggerCycle < 2)
                    {
                        GameObject go = Instantiate(bugCubePrefab, log.TargetSnapshot.Position, Quaternion.identity);
                        bugCubes.Add(go);
                    }
                }
            }

            // 检测天核区域内是否有BUG立方体
            Collider[] colliders = Physics.OverlapBox(AreaCenter, AreaSize * 0.5f);
            foreach (var collider in colliders)
            {
                if (bugCubes.Contains(collider.gameObject))
                {
                    OnBugHappenedInArea?.Invoke();
                    break;
                }
            }
        }

        // 可视化天核区域
        private void OnDrawGizmosSelected()
        {
            Gizmos.color = new Color(1, 0, 0, 0.3f);
            Gizmos.DrawCube(AreaCenter, AreaSize);
        }
    }
}