using System.Collections.Generic;
using UnityEngine;

namespace UI.PartnerGather.Mining
{
    /// <summary>
    /// 事件合作伙伴挖矿点管理器
    /// 管理所有挖矿点的位置，提供按顺序获取挖矿点的功能
    /// 
    /// 建议挂载在：MiningPoints容器对象上
    /// 
    /// 场景结构建议：
    /// MiningPoints (挂载此脚本)
    /// ├── MiningPoint1 (挖矿点1)
    /// ├── MiningPoint2 (挖矿点2)
    /// ├── MiningPoint3 (挖矿点3)
    /// └── ... (更多挖矿点)
    /// 
    /// 使用说明：
    /// - 将所有挖矿点的Transform拖拽到points数组中
    /// - 或者脚本会自动获取所有子Transform作为挖矿点
    /// </summary>
    public class EventPartnerMiningPointManager : MonoBehaviour
    {
        [Header("挖矿点配置")]
        [Tooltip("挖矿点Transform数组 - 手动拖拽或自动获取子Transform")]
        public List<Transform> points = new List<Transform>();
        
        [Header("调试信息")]
        [Tooltip("当前挖矿点索引")]
        [SerializeField] private int _index = 0;
        
        private void Awake()
        {
            // 如果没有手动设置挖矿点，自动获取子Transform
            if (points == null || points.Count == 0)
            {
                AutoCollectMiningPoints();
            }
            
            ValidateMiningPoints();
        }
        
        /// <summary>
        /// 自动收集所有子Transform作为挖矿点
        /// </summary>
        private void AutoCollectMiningPoints()
        {
            points = new List<Transform>();
            
            for (int i = 0; i < transform.childCount; i++)
            {
                Transform child = transform.GetChild(i);
                if (child.gameObject.activeInHierarchy)
                {
                    points.Add(child);
                }
            }
            
            Log($"自动收集到 {points.Count} 个挖矿点");
        }
        
        /// <summary>
        /// 验证挖矿点配置
        /// </summary>
        private void ValidateMiningPoints()
        {
            if (points == null || points.Count == 0)
            {
                Log("警告：未找到任何挖矿点，请检查配置");
                return;
            }
            
            // 移除空引用
            for (int i = points.Count - 1; i >= 0; i--)
            {
                if (!points[i])
                {
                    points.RemoveAt(i);
                    Log($"移除了空的挖矿点引用，索引：{i}");
                }
            }
            
            Log($"✓ 挖矿点验证完成，有效点数：{points.Count}");
        }
        public Transform GetNextPoint()
        {
            if (points == null || points.Count == 0) return null;
            var t = points[_index % points.Count];
            _index++;
            return t;
        }
        public void ResetPoints()
        {
            _index = 0;
        }
        
        private static void Log(object t)
        {
            Debug.Log($"<color=cyan>EventPartnerMiningPointManager-> {t} </color>");
        }
    }
}