// using AppsFlyerSDK;
using System;
using UnityEngine;

/// <summary>
/// 渠道类型枚举 - 区分谷歌商店/俄罗斯渠道
/// </summary>
[Flags]
public enum ChannelType
{
    /// <summary>
    /// 未初始化（默认值，需在游戏启动时设置）
    /// </summary>
    Unknown = 0,
    /// <summary>
    /// 谷歌商店渠道
    /// </summary>
    GooglePlay = 1,
    /// <summary>
    /// 俄罗斯渠道（如Yandex Games/本地商店等）
    /// </summary>
    Rustore = 1 << 1,
}

/// <summary>
/// 全局渠道管理类 - 单例模式+静态字段，全局唯一访问
/// </summary>
public static class ChannelManager
{
    // 全局静态渠道字段 - 私有存储，通过公共方法访问/设置
    private static ChannelType _currentChannel = ChannelType.Unknown;

    /// <summary>
    /// 获取当前渠道（全局只读访问）
    /// </summary>
    public static ChannelType CurrentChannel
    {
        get
        {
            Debug.Log($"CurrentChannel => {_currentChannel}");
            return _currentChannel;
        }
    }
#if UNITY_EDITOR            
    public static void SetChannel()
    {
        _currentChannel = ChannelType.GooglePlay;
    }
#elif UNITY_ANDROID
    public static void SetChannel()
    {
        string channelStr = ReadMetaData();
        if (string.IsNullOrEmpty(channelStr))
        {
            _currentChannel = ChannelType.GooglePlay;
            return;
        }
        bool isSuccess = Enum.TryParse<ChannelType>(channelStr, ignoreCase: true, out ChannelType resultChannel);
        if (isSuccess)
        {
            _currentChannel = resultChannel;
            Debug.Log($"[ChannelManager] 渠道初始化成功，当前渠道：{_currentChannel}");
        }
        else
        {
            _currentChannel = ChannelType.GooglePlay;
            Debug.LogError($"[ChannelManager] 渠道初始化失败，渠道：{channelStr}");
        }
    }
    static string ReadMetaData()
    {
        string metaName = "CHANNEL";
        try
        {
            // 1. 获取Unity的当前Activity实例（Android原生上下文）
            using (AndroidJavaClass cls_UnityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
            {
                using (AndroidJavaObject currentActivity = cls_UnityPlayer.GetStatic<AndroidJavaObject>("currentActivity"))
                {
                    // 创建MetaDataReader实例
                    AndroidJavaObject metaDataReader = new AndroidJavaObject("com.unity.plugin.MetaDataReader", currentActivity);
                    if (metaDataReader != null)
                    {
                        Debug.Log("[ChannelManager] MetaDataReader Get");
                        string value = metaDataReader.Call<string>("getAppMetaDataString", metaName);
                        Debug.Log($"[ChannelManager] MetaDataReader Get Value == {value}");
                        return value;
                    }
                    else
                    {
                        Debug.LogError($"[ChannelManager] MetaDataReader == null");
                        return string.Empty;
                    }
                }
            }
        }
        catch (System.Exception e)
        {
            Debug.LogError("读取meta-data失败：" + e.Message + "\n" + e.StackTrace);
            return string.Empty;
        }
    }

#else
    public static void SetChannel()
    {
        _currentChannel = ChannelType.Unknown;
    }
#endif
    /// <summary>
    /// 快速判断是否为谷歌商店渠道（语法糖，简化业务代码判断）
    /// </summary>
    public static bool IsGooglePlay => _currentChannel == ChannelType.GooglePlay;

    /// <summary>
    /// 快速判断是否为俄罗斯渠道（语法糖，简化业务代码判断）
    /// </summary>
    public static bool IsRustoreStore => _currentChannel == ChannelType.Rustore;

}