using LitJson;
using System.Collections.Generic;
using System.IO;
using System.Text;
using UnityEditor;
using UnityEngine;

#if UNITY_EDITOR
using YooAsset.Editor;
#endif

public class VersionUtils
{

#if UNITY_EDITOR
    //static string VersionPackagePath => $"{Application.dataPath}/../Bundles/assets_version_info.json";
    static string VersionPackagePath 
    {
        get 
        {
            if (EditorUserBuildSettings.activeBuildTarget == BuildTarget.Android)
            {
                return $"E:\\nginx-1.27.5\\html\\CDN\\Android\\v1.0\\assets_version_info.json";
            }
            else if (EditorUserBuildSettings.activeBuildTarget == BuildTarget.iOS)
            {
                return $"F:\\nginx-1.27.5\\html\\CDN\\IPhone\\v1.0\\assets_version_info.json";
            }
            else if (EditorUserBuildSettings.activeBuildTarget == BuildTarget.StandaloneWindows ||
                     EditorUserBuildSettings.activeBuildTarget == BuildTarget.StandaloneWindows64 ||
                     EditorUserBuildSettings.activeBuildTarget == BuildTarget.StandaloneOSX ||
                     EditorUserBuildSettings.activeBuildTarget == BuildTarget.StandaloneLinux64)
            {
                return $"F:\\nginx-1.27.5\\html\\CDN\\PC\\v1.0\\assets_version_info.json";
            }
            else
            {
                Debug.LogError("��ǰƽ̨�Ȳ��ǰ�׿��iOS��Ҳ���� PC �༭��ģʽ");
                return "";
            }

        }
    }

    /// <summary>
    /// ��ȡ�����б�
    /// </summary>
    public static List<AssetBundleCollectorPackage> GetPackageList()
    {
        // ��ȡ�����ļ�ʵ��
        string guidStr = AssetDatabase.FindAssets("AssetBundleCollectorSetting t:ScriptableObject")[0];
        string assetPath = AssetDatabase.GUIDToAssetPath(guidStr);
        var setting = AssetDatabase.LoadAssetAtPath<AssetBundleCollectorSetting>(assetPath);

        if (setting != null)
            return setting.Packages;
        return null;
    }
#endif

    /// <summary>
    /// ��� ���޸��汾�ļ�
    /// </summary>
    public static void CheckYooPackagesVersion()
    {
#if UNITY_EDITOR

        var packageList = GetPackageList();
        if (packageList != null)
        {
            //��ȡ������
            Yoo_Package_Info nowVersion = null;
            if (File.Exists(VersionPackagePath))
            {
                // ָ�������ȡ
                using (StreamReader reader = new StreamReader(VersionPackagePath, Encoding.UTF8))
                {
                    var str = reader.ReadToEnd();
                    try
                    {
                        nowVersion = JsonMapper.ToObject<Yoo_Package_Info>(str);
                    }
                    catch (System.Exception)
                    {
                        nowVersion = null;
                    }
                }
            }

            //����������
            Dictionary<string, int> dic = new Dictionary<string, int>();
            if (nowVersion != null && nowVersion.packages != null)
                foreach (var item in nowVersion.packages)
                    if (!string.IsNullOrEmpty(item.name))
                        dic.Add(item.name, item.version);

            var yooPackageInfo = new Yoo_Package_Info();
            yooPackageInfo.packages = new List<Yoo_Package_Info_Item>();

            bool isChange = false;

            for (int i = 0; i < packageList.Count; i++)
            {
                var item = new Yoo_Package_Info_Item();
                item.name = packageList[i].PackageName;
                if (dic.ContainsKey(item.name))
                    item.version = dic[item.name];
                else
                {
                    isChange = true;
                    item.version = 0;
                }

                yooPackageInfo.packages.Add(item);
            }

            if (isChange)
                SetYooPackageVersion(yooPackageInfo);
        }
#endif
    }

    /// <summary>
    /// ��ȡ���ذ汾�ļ�
    /// </summary>
    public static Yoo_Package_Info GetYooPackageVersion()
    {
        Yoo_Package_Info nowVersion = null;
#if UNITY_EDITOR
        if (!File.Exists(VersionPackagePath))
            CheckYooPackagesVersion();

        // ָ�������ȡ
        using (StreamReader reader = new StreamReader(VersionPackagePath, Encoding.UTF8))
        {
            var str = reader.ReadToEnd();
            nowVersion = JsonMapper.ToObject<Yoo_Package_Info>(str);
        }
#endif
        return nowVersion;
    }


    /// <summary>
    /// ���ñ��ذ汾�ļ�
    /// </summary>
    public static void SetYooPackageVersion(Yoo_Package_Info nowVersion)
    {
#if UNITY_EDITOR
        // ȷ��Ŀ¼����
        string directoryPath = Path.GetDirectoryName(VersionPackagePath);
        if (!Directory.Exists(directoryPath))
            Directory.CreateDirectory(directoryPath);
        File.WriteAllText(VersionPackagePath, JsonMapper.ToJson(nowVersion));
#endif
    }


    /// <summary>
    /// ��ȡjson�汾�ļ�
    /// </summary>
    public static Yoo_Package_Info GetToVersion(string json)
    {
        var info = JsonMapper.ToObject<Yoo_Package_Info>(json);
        return info;
    }

    /// <summary>
    /// ��ȡ���汾��
    /// </summary>
    public static int GetPackageVersion(string name)
    {
        var version = GetYooPackageVersion();
        foreach (var item in version.packages)
            if (item.name == name) return item.version;
        return 0;
    }

    /// <summary>
    /// ���汾��+1
    /// </summary>
    public static int PackageVesion_Add1(string name)
    {
        var version = GetYooPackageVersion();
        foreach (var item in version.packages)
        {
            if (item.name == name)
            {
                item.version++;
                SetYooPackageVersion(version);
                return item.version;
            }
        }

        version.packages.Add(new Yoo_Package_Info_Item { name = name, version = 0});
        SetYooPackageVersion(version);
        return 0;
    }

    /// <summary>
    /// ��Դ�ܰ汾��+1
    /// </summary>
    public static int PackageTotalVersion_Add1()
    {
        var version = GetYooPackageVersion();
        version.packageVersion++;
        SetYooPackageVersion(version);
        return version.packageVersion;
    }
}

/// <summary>
/// �汾��Ϣ
/// </summary>
public class Yoo_Package_Info
{
    /// <summary>
    /// ����Դ�汾   ÿ��1����Դ����Դ�汾+1
    /// </summary>
    public int packageVersion;

    /// <summary>
    /// YooAsset Package ��Դ�汾
    /// </summary>
    public List<Yoo_Package_Info_Item> packages;
}

public class Yoo_Package_Info_Item
{
    /// <summary>
    /// ����
    /// </summary>
    public string name;

    /// <summary>
    /// ���汾�� ÿ��1�Σ��汾��+1
    /// </summary>
    public int version;

    /// <summary>
    /// �Ƿ��������ļ�ϵͳ��ʼ��
    /// true ����ʼ����ȡStreamingAssets/yoo/DefaultPackage�µ��ļ��嵥  ��ע��apk��StreamingAssets�±�����嵥�ļ�������������ᱨ����
    /// false ����ʼ����ȡCDN�ϵ��嵥�ļ����ȸ����̡�
    /// </summary>
    public bool isBuildinFileSystem = false;
}