/// <summary>
/// 本地是否存在
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public bool IsLocal(CoverDb coverDb, string url)
{
Cover cover = coverDb.QueryByUrl(url);
return(cover != null);
}
/// <summary>
/// 返回图片md5值
/// </summary>
/// <param name="coverDb"></param>
/// <param name="url"></param>
/// <returns></returns>
public string LocalCover(CoverDb coverDb, string url)
{
Cover cover = coverDb.QueryByUrl(url);
return(cover.Md5);
}
/// <summary>
/// 获取封面
/// </summary>
/// <param name="aid"></param>
/// <param name="bvid"></param>
/// <param name="cid"></param>
/// <param name="url"></param>
/// <returns></returns>
public string GetCover(long avid, string bvid, long cid, string url)
{
CoverDb coverDb = new CoverDb();
Cover cover = coverDb.QueryByUrl(url);
// 如果存在，直接返回
// 如果不存在，则先下载
if (cover != null)
{
string coverPath = $"{StorageManager.GetCover()}/{cover.Md5}";
if (File.Exists(coverPath))
{
Cover newCover = new Cover
{
Avid = avid,
Bvid = bvid,
Cid = cid,
Url = url,
Md5 = cover.Md5
};
coverDb.Update(newCover);
//coverDb.Close();
return($"{StorageManager.GetCover()}/{cover.Md5}");
}
else
{
string md5 = DownloadImage(url);
if (md5 != null)
{
Cover newCover = new Cover
{
Avid = avid,
Bvid = bvid,
Cid = cid,
Url = url,
Md5 = md5
};
coverDb.Update(newCover);
//coverDb.Close();
return($"{StorageManager.GetCover()}/{md5}");
}
else
{
//coverDb.Close();
return(null);
}
}
}
else
{
string md5 = DownloadImage(url);
if (md5 != null)
{
Cover newCover = new Cover
{
Avid = avid,
Bvid = bvid,
Cid = cid,
Url = url,
Md5 = md5
};
coverDb.Insert(newCover);
//coverDb.Close();
return($"{StorageManager.GetCover()}/{md5}");
}
else
{
//coverDb.Close();
return(null);
}
}
}