using Assets.Framework.Tool;
using Assets.MyGame.Scripts.Net;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// 用户信息面板（设置已分离至 SettingPanel）
/// </summary>
public class UserInfoPanel : SubUIBase
{
    [Header("基础信息")]
    public Image sprite_Avatar;          // 显示已保存的用户头像（点使用后更新）
    public Button btn_ChangeUser;
    public TextMeshProUGUI tMPText_Name;
    public TextMeshProUGUI tMPText_ID;
    public TextMeshProUGUI tMPText_UserNumber;
    public TextMeshProUGUI tMPText_LabelQM;
    public TextMeshProUGUI tMPText_IP;
    public TextMeshProUGUI tMPText_VIPLeave;
    public TextMeshProUGUI tMPText_PhoneNumber;
    [Header("预览")]
    public Image img_ShowAvatar;         // 预览头像（选中即更新）
    public Image img_ShowAvatarK;        // 预览头像框（选中即更新）
    public Button btn_UseAvatar;         // 确认使用按钮
    [Header("头像选择")]
    public Transform parent_AvatarList;
    [Header("头像框选择")]
    public Transform parent_AvatarKList;

    public Toggle prefab_AvatarItem;     // 头像/头像框选项预制体（child0=Image, child2=选中对号）

    GameManager gameManager => GameManager.Instance;
    private List<Toggle> _avatarToggles = new List<Toggle>();
    private List<Toggle> _avatarFrameToggles = new List<Toggle>();
    private string _pendingAvatarName;   // 选中的待确认头像名
    private string _pendingAvatarFrameName;  // 选中的待确认头像框名

    public override void Awake()
    {
        base.Awake();
        btn_ChangeUser.onClick.AddListener(() =>
        {
            gameManager.Logout();
        });
        btn_UseAvatar.onClick.AddListener(OnClickUseAvatar);
    }

    protected override void OnShow(object args = null)
    {
        base.OnShow(args);
        InitInformation();
        BuildAvatarList();
        BuildAvatarFrameList();
        // 监听变更
        gameManager.OnAvatarChanged += OnAvatarChanged;
        gameManager.OnAvatarFrameChanged += OnAvatarFrameChanged;
    }

    protected override void OnHide()
    {
        base.OnHide();
        gameManager.OnAvatarChanged -= OnAvatarChanged;
        gameManager.OnAvatarFrameChanged -= OnAvatarFrameChanged;
        // 清理 toggle 列表
        _avatarToggles.Clear();
        _avatarFrameToggles.Clear();
    }

    // ==================== 基础信息 ====================

    private void InitInformation()
    {
        tMPText_Name.color = gameManager.user.BaseInfo.isRedName ? Color.red : Color.white;

        // 初始化两个头像（正式 + 预览）
        LoadAvatarImage(sprite_Avatar, gameManager.user.BaseInfo.avatarUrl);
        LoadAvatarImage(img_ShowAvatar, gameManager.user.BaseInfo.avatarUrl);

        // 初始化头像框预览
        LoadAvatarFrameImage(img_ShowAvatarK, gameManager.user.BaseInfo.avatarFrame);

        tMPText_Name.text = gameManager.user.BaseInfo.userName;
        tMPText_ID.text = gameManager.user.BaseInfo.number;
        tMPText_UserNumber.text = gameManager.user.BaseInfo.mobile;
        tMPText_LabelQM.text = PlayerPrefs.GetString("QM", "我比较懒，什么都没写");
        tMPText_IP.text = gameManager.user.@static.lastLoginIp;
        tMPText_VIPLeave.text = gameManager.user.assets.vipLevel.ToString();
        tMPText_PhoneNumber.text = MaskPhone(gameManager.user.BaseInfo.mobile);
    }

    // ==================== 头像加载 ====================

    private void LoadAvatarImage(Image target, string avatarUrl)
    {
        if (target == null) return;

        var sprite = gameManager.GetAvatarSprite(avatarUrl);
        if (sprite != null)
        {
            target.sprite = sprite;
        }
        else if (!int.TryParse(avatarUrl, out _))
        {
            WebTool.DownImage(avatarUrl, (texture) =>
            {
                if (texture != null && target != null)
                    target.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), Vector2.one * 0.5f);
            });
        }
    }

    private void LoadAvatarFrameImage(Image target, string avatarFrameName)
    {
        if (target == null) return;
        var sprite = gameManager.GetAvatarFrameSprite(avatarFrameName);
        if (sprite != null)
            target.sprite = sprite;
    }

    // ==================== 头像列表 ====================

    /// <summary>当前装备的头像名（从服务器数据读取）</summary>
    private string _equippedAvatarName;

    private void BuildAvatarList()
    {
        if (prefab_AvatarItem == null || parent_AvatarList == null) return;

        for (int i = parent_AvatarList.childCount - 1; i >= 0; i--)
            Destroy(parent_AvatarList.GetChild(i).gameObject);
        _avatarToggles.Clear();

        gameManager.InitAvatarCache();
        var allSprites = Resources.LoadAll<Sprite>("Avatar");
        _equippedAvatarName = gameManager.user.BaseInfo.avatarUrl;
        _pendingAvatarName = _equippedAvatarName;

        foreach (var sprite in allSprites)
        {
            var obj = Instantiate(prefab_AvatarItem, parent_AvatarList);
            string avatarName = sprite.name;

            // child(0) = 头像图片
            if (obj.transform.childCount > 0)
            {
                var img = obj.transform.GetChild(0).GetComponent<Image>();
                if (img != null) img.sprite = sprite;
            }

            // child(2) = 装备中对号（只在已装备的头像上显示，不跟随选中状态）
            Transform checkMark = obj.transform.childCount > 2 ? obj.transform.GetChild(2) : null;
            if (checkMark != null)
                checkMark.gameObject.SetActive(avatarName == _equippedAvatarName);

            var toggle = obj.GetComponent<Toggle>();
            if (toggle == null) continue;

            // 加入父对象的 ToggleGroup 实现单选
            toggle.group = parent_AvatarList.GetComponent<ToggleGroup>();

            // 禁用 Toggle 自带的过渡效果
            toggle.transition = Selectable.Transition.None;
            // 初始选中已装备的头像
            toggle.isOn = (avatarName == _equippedAvatarName);

            _avatarToggles.Add(toggle);

            toggle.onValueChanged.AddListener(isOn =>
            {
                if (!isOn) return;

                _pendingAvatarName = avatarName;

                // 预览头像实时更新
                if (img_ShowAvatar != null)
                    img_ShowAvatar.sprite = sprite;
            });
        }
    }

    // ==================== 头像框列表 ====================

    /// <summary>当前装备的头像框名（从服务器数据读取）</summary>
    private string _equippedAvatarFrameName;

    private void BuildAvatarFrameList()
    {
        if (prefab_AvatarItem == null || parent_AvatarKList == null) return;

        for (int i = parent_AvatarKList.childCount - 1; i >= 0; i--)
            Destroy(parent_AvatarKList.GetChild(i).gameObject);
        _avatarFrameToggles.Clear();

        gameManager.InitAvatarFrameCache();
        var allSprites = Resources.LoadAll<Sprite>("AvatarK");
        _equippedAvatarFrameName = gameManager.user.BaseInfo.avatarFrame;
        _pendingAvatarFrameName = _equippedAvatarFrameName;

        foreach (var sprite in allSprites)
        {
            var obj = Instantiate(prefab_AvatarItem, parent_AvatarKList);
            string frameName = sprite.name;

            // child(0) = 头像框图片
            if (obj.transform.childCount > 0)
            {
                var img = obj.transform.GetChild(0).GetComponent<Image>();
                if (img != null) img.sprite = sprite;
                // 头像框可以设置 SetNativeSize 保持比例
                //if (img != null) img.SetNativeSize();
            }

            // child(2) = 装备中对号（只在已装备的头像框上显示）
            Transform checkMark = obj.transform.childCount > 2 ? obj.transform.GetChild(2) : null;
            if (checkMark != null)
                checkMark.gameObject.SetActive(frameName == _equippedAvatarFrameName);

            var toggle = obj.GetComponent<Toggle>();
            if (toggle == null) continue;

            // 加入父对象的 ToggleGroup 实现单选
            toggle.group = parent_AvatarKList.GetComponent<ToggleGroup>();

            // 禁用 Toggle 自带的过渡效果
            toggle.transition = Selectable.Transition.None;
            // 初始选中已装备的头像框
            toggle.isOn = (frameName == _equippedAvatarFrameName);

            _avatarFrameToggles.Add(toggle);

            toggle.onValueChanged.AddListener(isOn =>
            {
                if (!isOn) return;

                _pendingAvatarFrameName = frameName;

                // 预览头像框实时更新
                if (img_ShowAvatarK != null)
                    img_ShowAvatarK.sprite = sprite;
            });
        }
    }

    // ==================== 确认使用 ====================

    /// <summary>点击"使用"按钮 → 确认切换装备头像/头像框</summary>
    private void OnClickUseAvatar()
    {
        // 优先判断是否有头像更改
        bool avatarChanged = !string.IsNullOrEmpty(_pendingAvatarName)
                          && _pendingAvatarName != _equippedAvatarName;

        // 判断是否有头像框更改
        bool frameChanged = !string.IsNullOrEmpty(_pendingAvatarFrameName)
                         && _pendingAvatarFrameName != _equippedAvatarFrameName;

        if (avatarChanged)
        {
            LoadAvatarImage(sprite_Avatar, _pendingAvatarName);
            gameManager.ApplyAvatar(_pendingAvatarName);
        }

        if (frameChanged)
        {
            LoadAvatarFrameImage(img_ShowAvatarK, _pendingAvatarFrameName);
            gameManager.ApplyAvatarFrame(_pendingAvatarFrameName);
        }

        if (!avatarChanged && !frameChanged)
        {
            Debug.Log("[UserInfoPanel] 未改变头像或头像框");
        }
    }

    // ==================== 变更回调 ====================

    /// <summary>头像变更回调（服务器返回后），同步预览和列表对号</summary>
    private void OnAvatarChanged(Sprite sprite)
    {
        if (sprite_Avatar != null && sprite != null)
            sprite_Avatar.sprite = sprite;
        if (img_ShowAvatar != null && sprite != null)
            img_ShowAvatar.sprite = sprite;

        _equippedAvatarName = _pendingAvatarName;

        // 切换对号：隐藏旧的、显示新的
        foreach (var t in _avatarToggles)
        {
            if (t == null || t.transform.childCount <= 2) continue;
            var img = t.transform.GetChild(0).GetComponent<Image>();
            bool isEquipped = img != null && img.sprite != null && img.sprite.name == _equippedAvatarName;
            t.transform.GetChild(2).gameObject.SetActive(isEquipped);
        }
    }

    /// <summary>头像框变更回调（服务器返回后），同步预览和列表对号</summary>
    private void OnAvatarFrameChanged(Sprite sprite)
    {
        if (img_ShowAvatarK != null && sprite != null)
            img_ShowAvatarK.sprite = sprite;

        _equippedAvatarFrameName = _pendingAvatarFrameName;

        // 切换对号：隐藏旧的、显示新的
        foreach (var t in _avatarFrameToggles)
        {
            if (t == null || t.transform.childCount <= 2) continue;
            var img = t.transform.GetChild(0).GetComponent<Image>();
            bool isEquipped = img != null && img.sprite != null && img.sprite.name == _equippedAvatarFrameName;
            t.transform.GetChild(2).gameObject.SetActive(isEquipped);
        }
    }

    // ==================== 工具 ====================

    public static string MaskPhone(string phone)
    {
        if (string.IsNullOrEmpty(phone) || phone.Length <= 6)
            return phone;
        int prefix = 3;
        int suffix = 3;
        int maskCount = phone.Length - prefix - suffix;
        return phone.Substring(0, prefix) + new string('*', maskCount) + phone.Substring(phone.Length - suffix);
    }
}