//------------------------------------------------------------------------------
//  此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
//  此代码版权（除特别声明外的代码）归作者本人Diego所有
//  源代码使用协议遵循本仓库的开源协议及附加协议
//  Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
//  Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
//  使用文档：https://thingsgateway.cn/
//  QQ群：605534569
//------------------------------------------------------------------------------

using System.Text.RegularExpressions;

namespace ThingsGateway.Gateway.Application;

public static class CacheDBUtil
{
    public const string EX = ".db";

    /// <summary>
    /// 删除缓存文件
    /// </summary>
    public static bool DeleteCache(double maxFileLength, string fullName)
    {
        try
        {
            var fileLength = GetFileLength(fullName);
            if (fileLength > maxFileLength)
                FileHelper.DeleteFile(fullName);

            return true;
        }
        catch
        {
            return false;
        }
    }

    /// <summary>
    /// 获取缓存链接
    /// </summary>
    public static CacheDB GetCache(Type tableType, string folder, string name)
    {
        var dir = GetCacheFilePath(folder);
        var fileStart = GetFileName(name);
        var fullName = PathHelper.CombinePathReplace(dir, $"{fileStart}{EX}");

        var cache = new CacheDB(tableType, new CacheDBOption() { FileFullName = $"{fullName}" });
        return cache;
    }

    public static string GetCacheFileBasePath()
    {
        var dir = Path.Combine(App.HostEnvironment?.ContentRootPath ?? AppContext.BaseDirectory, "PluginCache");
        //创建文件夹
        Directory.CreateDirectory(dir);
        return dir;
    }

    public static double GetFileLength(string fullName)
    {
        long? length1;
        if (!File.Exists(fullName))
        {
            length1 = 0;
        }
        else
        {
            length1 = new FileInfo(fullName).Length;
        }
        var mb1 = Math.Round((double)length1 / 1024 / 1024, 2);
        return mb1;
    }

    public static string GetFileName(string typeName)
    {
        var fileStart = $"{Regex.Replace($"{typeName}", "[^a-zA-Z0-9]", "_")}";
        return fileStart;
    }

    public static string GetCacheFilePath(string folderName)
    {
        var dir = PathHelper.CombinePathReplace(GetCacheFileBasePath(), folderName);
        //创建文件夹
        Directory.CreateDirectory(dir);
        return dir;
    }
}
