private async Task DownloadIMGFiles(string folderPath, List <string> fileNames)
{
DirectoryInfo directory = new DirectoryInfo(folderPath);
List <string> existingFiles = new List <string>();
foreach (FileInfo info in directory.GetFiles())
{
existingFiles.Add(info.Name);
}
List <string> downloadFileNames = new List <string>();
foreach (string fileName in fileNames)
{
if (!existingFiles.Contains(fileName))
{
downloadFileNames.Add(fileName);
}
}
foreach (string fileName in downloadFileNames)
{
StringBuilder urlStr = new StringBuilder();
if (folderPath.Equals(SystemEnv.DefaultFolderPath))
{
urlStr.AppendFormat(@"{0}/{1}/{2}/{3}",
HTTPPacket.Url_IMG_Downlaod,
Download_Type_Default,
fileName,
"0");
}
else
{
urlStr.AppendFormat(@"{0}/{1}/{2}/{3}",
HTTPPacket.Url_IMG_Downlaod,
Download_Type_User,
fileName,
SystemEnv.GetProductKey());
}
string filePath = folderPath + @"/" + fileName;
Console.WriteLine("> Downlaod Url : {0}", urlStr);
await httpClient.DownloadFile(new Uri(urlStr.ToString()), filePath);
}
}