using Assets.MyGame.Scripts.Net.API.GameConfig_SubClass;
using Assets.MyGame.Scripts.Net.APIResponses.Enum;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// 单独锁定面板(SuoDing.prefab)。
/// ⭐ 本阶段只做界面:
///   - 单列表不分类,只显示 黄金鱼/特殊鱼/Boss鱼/特殊Boss(不含普通鱼)
///   - 每个 item 带 Toggle(勾选=作为锁定目标),按锁定优先级排序显示
///   - 全选/取消全选 两个按钮
///   - GetSelectedFishNumbers() 暴露选中列表,后续锁定功能从这里对接
/// </summary>
public class SuoDingPanel : SubUIBase
{
    [Header("Item 模板(TuJianItem+Toggle,可挂在模板自身或子节点;模板未激活也行,克隆后会自动激活)")]
    public GameObject prefab_Item;

    [Header("列表父节点(不分类,所有条目都放这里)")]
    public Transform parent_List;

    [Header("按钮")]
    public Button btn_SelectAll;    // 全选
    public Button btn_DeselectAll;  // 取消全选

    [Header("滚动视图")]
    public ScrollRect scrollRect;

    /// <summary>fishNumber → 条目(TuJianItem 显示 + Toggle 勾选)</summary>
    private readonly Dictionary<string, Entry> entries = new Dictionary<string, Entry>();

    /// <summary>当前勾选的鱼编号集合(Toggle 的 onValueChanged 实时维护,锁定系统 O(1) 查询)</summary>
    private readonly HashSet<string> selectedSet = new HashSet<string>();

    private class Entry
    {
        public string fishNumber;
        public FishTypeEnum fishType;
        public TuJianItem item;
        public Toggle toggle;
    }

    public override void Awake()
    {
        base.Awake();

        if (btn_SelectAll != null) btn_SelectAll.onClick.AddListener(SelectAll);
        if (btn_DeselectAll != null) btn_DeselectAll.onClick.AddListener(DeselectAll);

        BuildList();
        // ⭐ 默认全选:锁定目标=全部高价值鱼(和当前自动锁定行为一致),玩家在面板里再手动调整
        SelectAll();
    }

    protected override void OnShow(object args = null)
    {
        base.OnShow(args);
        // 打开时滚动到最上方
        // ⭐ 只重置纵向(verticalNormalizedPosition):
        //   normalizedPosition 会同时写 x 轴(=0 横向滚到最左),ScrollRect 会直接改写
        //   content(列表父对象)的 anchoredPosition.x,导致父对象 X 从 0 被移走
        if (scrollRect != null)
            scrollRect.verticalNormalizedPosition = 1f;
    }

    protected override void OnHide()
    {
        base.OnHide();
        // ⭐ 关闭面板 = 应用勾选结果:通知主面板打开锁定并按勾选白名单自动锁定
        //   (parentUIBase 就是挂着本面板的主面板,各游戏主面板都继承 GameMainPanel_FishBase)
        if (uIManager != null && uIManager.parentUIBase is GameMainPanel_FishBase main)
            main.ApplySuoDingSelection();
    }

    // ==================== 列表构建 ====================

    private void BuildList()
    {
        if (prefab_Item == null || parent_List == null) return;

        // ① 收集本房间可出鱼编号(鱼阵条目解析出阵内实际鱼),去重
        var fishNumbers = new HashSet<string>();
        var spawnList = CreateFishManager.Instance != null ? CreateFishManager.Instance.spawnList : null;
        if (spawnList != null)
        {
            foreach (var spawn in spawnList)
            {
                if (spawn.type == 2)
                {
                    // 鱼阵条目:fishNumber 存的是鱼阵编号,解析出阵内实际生成的鱼
                    if (CreateFishManager.Instance.FishArrayDatas.TryGetValue(spawn.fishNumber, out var yz))
                        TryAddFishNumber(fishNumbers, yz.fishNumber);
                }
                else
                {
                    TryAddFishNumber(fishNumbers, spawn.fishNumber);
                }
            }
        }

        // ② 过滤:只保留 黄金鱼/特殊鱼/Boss鱼/特殊Boss(不显示普通鱼)
        var filtered = new List<(string fishNumber, FishTypeEnum fishType)>();
        foreach (var fn in fishNumbers)
        {
            if (!GameManager.Instance.dic_fishTypeConfigs.TryGetValue(fn, out var cfg)) continue;
            var t = (FishTypeEnum)cfg.fishType;
            if (t == FishTypeEnum.普通鱼) continue;
            filtered.Add((fn, t));
        }

        // ③ 排序:与自动锁定优先级一致 特殊Boss > Boss鱼 > 特殊鱼 > 黄金鱼,同类型按编号
        filtered.Sort((a, b) =>
        {
            int pa = GetTypeSortOrder(a.fishType);
            int pb = GetTypeSortOrder(b.fishType);
            if (pa != pb) return pa.CompareTo(pb);
            return CompareFishNumber(a.fishNumber, b.fishNumber);
        });

        // ④ 实例化条目
        foreach (var (fishNumber, fishType) in filtered)
            CreateItem(fishNumber, fishType);
    }

    private void TryAddFishNumber(HashSet<string> set, string fishNumber)
    {
        if (!string.IsNullOrEmpty(fishNumber))
            set.Add(fishNumber);
    }

    /// <summary>显示排序:特殊Boss(0) > Boss鱼(1) > 特殊鱼(2) > 黄金鱼(3),与自动锁定优先级一致</summary>
    private static int GetTypeSortOrder(FishTypeEnum t)
    {
        switch (t)
        {
            case FishTypeEnum.特殊Boss: return 0;
            case FishTypeEnum.Boss鱼: return 1;
            case FishTypeEnum.特殊鱼: return 2;
            case FishTypeEnum.黄金鱼: return 3;
            default: return int.MaxValue;
        }
    }

    private static int CompareFishNumber(string a, string b)
    {
        if (int.TryParse(a, out var na) && int.TryParse(b, out var nb))
            return na.CompareTo(nb);
        return string.CompareOrdinal(a, b);
    }

    private void CreateItem(string fishNumber, FishTypeEnum fishType)
    {
        // 模板是面板下的未激活场景对象,克隆后要手动激活
        var go = Instantiate(prefab_Item, parent_List);
        go.SetActive(true);
        go.name = $"SuoDingItem_{fishNumber}";

        // TuJianItem / Toggle 可挂在模板自身或子节点(两种摆法都兼容)
        var item = go.GetComponentInChildren<TuJianItem>(true);
        var toggle = go.GetComponentInChildren<Toggle>(true);
        if (item == null) return;

        // 黄金鱼显示固定倍数,特殊鱼/Boss/特殊Boss显示"最高X倍"(与图鉴一致)
        item.InItItem(new RoomFishDetailConfig { fishNumber = fishNumber }, fishType == FishTypeEnum.黄金鱼);

        if (toggle != null)
        {
            // ⭐ 多选:清掉可能误挂的排他 ToggleGroup(注册进组后全选会被组吞成单选)
            if (toggle.group != null) toggle.group = null;

            // ⭐ 勾选状态实时同步到 selectedSet(全选/取消全选/手动点击都会触发 onValueChanged)
            toggle.onValueChanged.AddListener(on =>
            {
                if (on) selectedSet.Add(fishNumber);
                else selectedSet.Remove(fishNumber);
            });
            if (toggle.isOn) selectedSet.Add(fishNumber);
        }

        entries[fishNumber] = new Entry { fishNumber = fishNumber, fishType = fishType, item = item, toggle = toggle };
    }

    // ==================== 全选/取消全选 ====================

    public void SelectAll()
    {
        foreach (var e in entries.Values)
            if (e.toggle != null) e.toggle.isOn = true;
    }

    public void DeselectAll()
    {
        foreach (var e in entries.Values)
            if (e.toggle != null) e.toggle.isOn = false;
    }

    // ==================== 选中列表(锁定对接入口) ====================

    /// <summary>是否至少勾选了一条(白名单是否生效)。锁定系统每帧查询,用 O(1) 属性</summary>
    public bool HasSelection => selectedSet.Count > 0;

    /// <summary>当前勾选的鱼编号列表(锁定系统从这里读取)</summary>
    public List<string> GetSelectedFishNumbers()
    {
        return new List<string>(selectedSet);
    }

    /// <summary>某条鱼是否被勾选(未创建条目视为未选中)。O(1),锁定系统逐鱼查询用</summary>
    public bool IsFishSelected(string fishNumber)
    {
        return !string.IsNullOrEmpty(fishNumber) && selectedSet.Contains(fishNumber);
    }
}