using Assets.MyGame.Scripts.Net;
using Assets.MyGame.Scripts.Net.WebResponses;
using Newtonsoft.Json;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;
using static Assets.MyGame.Scripts.Net.WebResponses.ChineseChess.ChineseChessGameClassList;

public class UIChineseChessDistrict : SubUIBase
{
    public Button panel_RoomItemPrefab;
    public Transform panel_RoomItemParent;
    public ScrollRect scroll;
    public TextMeshProUGUI tmp_CurrGold;
    public Dictionary<string, Transform> itemListDic = new Dictionary<string, Transform>();
    float horizontalNormalizedPosition;

    public Transform tra_DaQuParent;
    public Transform tra_FenQuItem;  // child0=Toggle, child0.child0=TextMeshProUGUI（象棋n区）
    public int maxDistrict = 10;     // 最大分区数
    /// <summary>当前选中的分区号（1 开始）：退房/被踢回大厅时用它刷新，保证列表与 tab 一致</summary>
    public int currDistrict = 1;

    private bool _tabsBuilt = false;

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

    private void Update()
    {
        scroll.horizontalNormalizedPosition = Mathf.Lerp(scroll.horizontalNormalizedPosition, horizontalNormalizedPosition, 0.5f);
    }

    public override void Hide()
    {
        base.Hide();
    }

    protected override void OnShow(object args = null)
    {
        base.OnShow(args);
        tmp_CurrGold.text = GameManager.Instance.user.assets.gold.ToString();

        if (!_tabsBuilt)
        {
            // 从后端 API 获取分区总数
            APIRequestList.GetChessRoomPartitionCount(count =>
            {
                maxDistrict = count > 0 ? count : 1;
                BuildChessFenQuTabs();
                _tabsBuilt = true;
            });
        }
    }

    public override void Show(object args = null)
    {
        base.Show(args);
        tmp_CurrGold.text = GameManager.Instance.user.assets.gold.ToString();

        if (args != null)
        {
            // 4.4 全量覆盖：先清空旧列表，再用服务端返回的列表重建（防止多次刷新叠加/分区错乱）
            for (int c = panel_RoomItemParent.childCount - 1; c >= 0; c--)
                Destroy(panel_RoomItemParent.GetChild(c).gameObject);
            itemListDic.Clear();

            int i = 0;
            var v = JsonConvert.DeserializeObject<WebSocketResponseBase<List<ChessGameRoom>>>(args.ToString());
            var basePanel = (ChineseChessMainPanel)uIManager.parentUIBase;
            foreach (var item in v.arguments[0])
            {
                var tran = Instantiate(panel_RoomItemPrefab.gameObject, panel_RoomItemParent).transform;

                tran.GetComponent<Button>().onClick.AddListener(() =>
                {
                    switch (ChineseChessMainPanel.dic_RoomData[item.roomId].state)
                    {
                        case 1: // 未开始
                            int temp = ChineseChessMainPanel.dic_RoomData[item.roomId].users.Count;
                            if (temp >= 2)
                            {
                                UIManager.Instance.ShowBoardError("玩家满员");
                            }
                            else
                            {
                                uIManager.ShowAsync(UIPanel.ZGXQJoinGame, item);
                            }
                            break;
                        case 2:
                            UIManager.Instance.ShowBoardError("房间已经开始");
                            break;
                        case 0: // 空房间
                        case 3:
                            uIManager.ShowAsync(UIPanel.ZGXQCreateRoom, item);
                            break;
                        default:
                            break;
                    }
                });
                tran.name = item.roomId;
                itemListDic[item.roomId] = tran;
                ChineseChessMainPanel.dic_RoomData[item.roomId] = item;

                var slider = tran.transform.GetChild(0).GetComponent<Slider>();
                // 人数 = 真实玩家 + 机器人（users.Count 只含真实玩家，robotCount 是 AI）
                int allPlayerCount = item.users.Count + item.robotCount;
                slider.value = (float)allPlayerCount / 2;
                if (allPlayerCount == 2)
                    slider.fillRect.GetChild(0).gameObject.SetActive(true);
                else
                    slider.fillRect.GetChild(0).gameObject.SetActive(false);

                tran.transform.GetChild(1).GetComponent<TextMeshProUGUI>().text = allPlayerCount + "/" + 2;
                tran.transform.GetChild(2).GetComponent<TextMeshProUGUI>().text = item.roomId.Substring(2).ToString();
                i++;
            }
            scroll.horizontalNormalizedPosition = 0;
        }
    }

    // ==================== 分区 Tab ====================

    private void BuildChessFenQuTabs()
    {
        if (tra_DaQuParent == null || tra_FenQuItem == null) return;

        // 清空旧列表
        for (int i = panel_RoomItemParent.childCount - 1; i >= 0; i--)
            Destroy(panel_RoomItemParent.GetChild(i).gameObject);
        itemListDic.Clear();

        for (int d = 1; d <= maxDistrict; d++)
        {
            var tab = Instantiate(tra_FenQuItem, tra_DaQuParent);
            // child0 = Toggle容器, child0.child0 = TextMeshProUGUI
            if (tab.childCount > 0 && tab.GetChild(0) != null && tab.GetChild(0).childCount > 0)
            {
                tab.GetChild(0).GetChild(0).GetComponent<TextMeshProUGUI>().text = "象棋" + ToChineseNumber(d) + "区";
                tab.GetChild(0).GetChild(2).GetComponent<TextMeshProUGUI>().text = "象棋" + ToChineseNumber(d) + "区";
            }
                

            int district = d;
            var toggle = tab.GetChild(0).GetComponent<Toggle>();
            if (toggle != null)
            {
                toggle.onValueChanged.AddListener((isOn) =>
                {
                    if (!isOn) return;

                    // 手动单选
                    for (int i = 0; i < tra_DaQuParent.childCount; i++)
                    {
                        var t = tra_DaQuParent.GetChild(i).GetChild(0).GetComponent<Toggle>();
                        if (t != null && t != toggle)
                            t.SetIsOnWithoutNotify(false);
                    }

                    // 清空房间列表
                    for (int i = panel_RoomItemParent.childCount - 1; i >= 0; i--)
                        Destroy(panel_RoomItemParent.GetChild(i).gameObject);
                    itemListDic.Clear();

                    currDistrict = district; // 记录当前选中分区（退房/被踢回大厅时按它刷新）
                    WebSocketSendList.GetRoomListChineseChess(district);
                });
            }
        }

        // 默认选中一区
        if (tra_DaQuParent.childCount > 0)
        {
            var firstTab = tra_DaQuParent.GetChild(0);
            if (firstTab.childCount > 0)
            {
                var firstToggle = firstTab.GetChild(0).GetComponent<Toggle>();
                if (firstToggle != null)
                    firstToggle.isOn = true;
            }
        }
    }

    private static string ToChineseNumber(int n)
    {
        if (n <= 0) return n.ToString();
        if (n <= 10)
        {
            string[] units = { "", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" };
            return units[n];
        }
        return n.ToString();
    }

    public void UpdataRoom(ChessGameRoom item)
    {
        if (item == null || string.IsNullOrEmpty(item.roomId)) return;
        string roomID = item.roomId;
        ChineseChessMainPanel.dic_RoomData[roomID] = item;

        // 不在当前列表（其他分区/列表已清空）→ 只更新缓存，不动 UI
        if (!itemListDic.TryGetValue(roomID, out var tran)) return;
        // 子节点索引与 Show 保持一致：0=Slider, 1=人数文本, 2=房间号
        var slider = tran.transform.GetChild(0).GetComponent<Slider>();
        // 人数 = 真实玩家 + 机器人
        int allPlayerCount = item.users.Count + item.robotCount;
        slider.value = (float)allPlayerCount / 2;
        if (allPlayerCount == 2)
            slider.fillRect.GetChild(0).gameObject.SetActive(true);
        else
            slider.fillRect.GetChild(0).gameObject.SetActive(false);
        tran.transform.GetChild(1).GetComponent<TextMeshProUGUI>().text = allPlayerCount + "/" + 2;
    }
}