using Assets.MyGame.Scripts.Net;
using Assets.MyGame.Scripts.Net.API.GameConfig_SubClass;
using Assets.MyGame.Scripts.Net.WebResponses;
using Newtonsoft.Json;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class UIHome_BY_MySelectRoomPanel : SubUIBase
{
    public GameObject panel_PanelParent;
    public Button panel_RoomItemPrefab;
    public Button btn_NextPage;
    public Button btn_UpPage;
    public TextMeshProUGUI text_PageNum;
    public ScrollRect scroll;
    public List<Transform> itemPage = new List<Transform>();
    public GameObject itemPagePrefab;
    public Transform itemPageParent;

    public Transform tra_DaQuParent;
    public Transform tra_FenQuItem;   // child1=场次名, child2=分区n

    public Dictionary<string, Transform> itemListDic = new Dictionary<string, Transform>();

    int pageNum = 1;
    float horizontalNormalizedPosition;
    private int _lastLeave = -1;

    public override void Awake()
    {
        btn_NextPage.onClick.AddListener(() =>
        {
            if (pageNum > 1) pageNum--;
            text_PageNum.text = pageNum + "/" + itemPage.Count;
            horizontalNormalizedPosition = (float)(pageNum - 1) / (float)(itemPage.Count - 1);
        });
        btn_UpPage.onClick.AddListener(() =>
        {
            if (pageNum < itemPage.Count) pageNum++;
            text_PageNum.text = pageNum + "/" + itemPage.Count;
            horizontalNormalizedPosition = (float)(pageNum - 1) / (float)(itemPage.Count - 1);
        });
        btn_Close.onClick.AddListener(() => Hide());
    }

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

    public override void Hide()
    {
        base.Hide();
        panel_PanelParent.SetActive(true);
    }

    protected override void OnShow(object args = null)
    {
        base.OnShow(args);
        int leave = GetCurrentLeave();
        if (_lastLeave != leave)
        {
            // 场次变了 → 重建分区 Tab
            for (int i = tra_DaQuParent.childCount - 1; i >= 0; i--)
                Destroy(tra_DaQuParent.GetChild(i).gameObject);
            BuildFenQuTabs();
            _lastLeave = leave;
        }
    }

    public override void Show(object args = null)
    {
        base.Show(args);
        ClearRoomPages();

        if (args != null)
        {
            var v = JsonConvert.DeserializeObject<WebSocketResponseBase<List<GetRoomList>>>(args.ToString());
            BuildRoomPages(v.arguments[0]);
        }
    }

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

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

        var cfg = GameManager.Instance?.gameConfig?.roomConfigs;
        if (cfg == null) return;

        int gameType = (int)GameManager.Instance.gameData.currGameType;
        int leave = GetCurrentLeave();

        int partitionCount = 1;
        foreach (var c in cfg)
        {
            if (c.gameType == gameType && c.roomLevel == leave)
            {
                partitionCount = c.roomPartitionNum > 0 ? c.roomPartitionNum : 1;
                break;
            }
        }

        for (int d = 1; d <= partitionCount; d++)
        {
            var tab = Instantiate(tra_FenQuItem, tra_DaQuParent);

            if (tab.childCount > 1 && tab.GetChild(1) != null)
                tab.GetChild(1).GetComponent<TextMeshProUGUI>().text = LevelNameFor(leave);
            if (tab.childCount > 2 && tab.GetChild(2) != null)
                tab.GetChild(2).GetComponent<TextMeshProUGUI>().text = "分区" + d;

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

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

                    ClearRoomPages();
                    WebSocketSendList.GetRoomListFish(leave, district);
                });
            }
        }
    }

    private int GetCurrentLeave()
    {
        var selectPanel = UIManager.Instance.Get<UIHomeMain>(UIPanel.HomeMainPanel)
            ?.subUIManager.Get<UIHome_BY_SelectRoomLevelPanel>(UIPanel.SelectRoomLeavePenel);
        return selectPanel != null ? selectPanel.leave : 1;
    }

    private static string LevelNameFor(int leave)
    {
        return leave switch { 1 => "低级场", 2 => "中级场", 3 => "高级场", _ => "未知场" };
    }

    // ==================== 房间列表 ====================

    private void ClearRoomPages()
    {
        foreach (var item in itemPage)
            Destroy(item.gameObject);
        itemPage.Clear();
        itemListDic.Clear();
        text_PageNum.text = "0/0";
        pageNum = 1;
    }

    private void BuildRoomPages(List<GetRoomList> rooms)
    {
        if (rooms == null || rooms.Count == 0) return;

        int pageMax = Mathf.CeilToInt(rooms.Count / 15f);
        for (int j = 0; j < pageMax; j++)
            itemPage.Add(Instantiate(itemPagePrefab, itemPageParent).transform);

        int i = 0;
        foreach (var item in rooms)
        {
            var tran = Instantiate(panel_RoomItemPrefab.gameObject, itemPage[i / 15]).transform;
            tran.GetComponent<Button>().onClick.AddListener(() =>
            {
                WebSocketSendList.GetRoomInfo(item.roomId);
            });
            tran.name = item.roomId;
            itemListDic[item.roomId] = tran;

            UpdateRoomItemUI(tran, item.currentOnlinePlayerCount, item.robotCount, item.maxPlayerCount, item.roomNumber);
            i++;
        }

        text_PageNum.text = "1/" + itemPage.Count;
        scroll.horizontalNormalizedPosition = 0;
        pageNum = 1;
    }

    /// <summary>
    /// FishRoomHub RoomChange 通知：更新单个房间项的人数显示
    /// </summary>
    public void OnRoomChange(RoomChangeResponse room)
    {
        if (room == null || string.IsNullOrEmpty(room.roomId)) return;
        if (!itemListDic.TryGetValue(room.roomId, out var tran) || tran == null) return;
        UpdateRoomItemUI(tran, room.currentOnlinePlayerCount, room.robotCount, room.maxPlayerCount, room.roomNumber);
    }

    /// <summary>更新单个房间项的 UI（slider + 人数文本 + 房间号）</summary>
    private void UpdateRoomItemUI(Transform tran, int currentOnline, int robot, int maxPlayer, int roomNumber)
    {
        var slider = tran.transform.GetChild(0).GetComponent<Slider>();
        int allPlayerCount = currentOnline + robot;
        if (slider != null)
        {
            slider.value = (float)allPlayerCount / (float)maxPlayer;
            if (allPlayerCount >= maxPlayer && slider.fillRect != null && slider.fillRect.childCount > 0)
                slider.fillRect.GetChild(0).gameObject.SetActive(true);
            else if (allPlayerCount < maxPlayer && slider.fillRect != null && slider.fillRect.childCount > 0)
                slider.fillRect.GetChild(0).gameObject.SetActive(false);
        }

        if (tran.transform.GetChild(0).childCount > 3 && tran.transform.GetChild(0).GetChild(3) != null)
            tran.transform.GetChild(0).GetChild(3).GetComponent<TextMeshProUGUI>().text = allPlayerCount + "/" + maxPlayer;
        if (tran.transform.childCount > 1 && tran.transform.GetChild(1) != null)
            tran.transform.GetChild(1).GetComponent<TextMeshProUGUI>().text = roomNumber.ToString();
    }
}