/// <summary>
/// 上传图片和生成结构体
/// </summary>
/// <returns></returns>
public async Task <IList <MessageRawStructBase> > UploadAndGenerateStructModel()
{
var list = new List <MessageRawStructBase>();
// 寻找还未上传的图片node
var waitForUpload = NodeList.Where(node => node is ImageNode).Where(node => !UploadedImg.ContainsKey((node as ImageNode).HashMd5)).Select(node => node as ImageNode).ToList();
// 生成上传所需的信息
var fragments = new List <UploadFileFragment>();
foreach (var node in waitForUpload)
{
if (fragments.Any(_n => _n.Md5.Equals(node.HashMd5)))
{
break;
}
var img = await BitmapDecoder.CreateAsync(await node.File.OpenAsync(FileAccessMode.Read));
fragments.Add(new UploadFileFragment {
Resolution = $"{img.PixelWidth}x{img.PixelHeight}",
Name = node.HashMd5 + node.File.FileType,
Md5 = node.HashMd5
});
}
if (fragments.Count > 0)
{
var dialog = new ContentDialog()
{
Title = "正在上传..."
};
_ = dialog.ShowAsync();
try {
// 从酷安获取STS
var r = await App.AppViewModel.CoolapkApis.OssUploadPicturePrepare(new OssUploadPicturePrepareBody {
UploadFileFragmentsSource = fragments
});
var data = r.Data;
// 对每个需要上传的文件执行真正的上传操作
dialog.Content = "正在生成上传任务...";
// 生成tasks
var tasks = data.FileInfo.Select(async info => {
var imgNode = waitForUpload.Find(node => node.HashMd5 == info.Md5);
using (var fs = await imgNode.File.OpenStreamForReadAsync()) {
var response = CoolapkApiHelper.OssUpload(data.UploadPrepareInfo, info, fs, imgNode.File.ContentType,
(OssUploadPicturePrepareResultFileInfo fileInfo, object sender, StreamTransferProgressArgs args) => {
_ = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
dialog.Content = $"{data.FileInfo.IndexOf(info) + 1}/{data.FileInfo.Count} 上传进度 {args.PercentDone}%";
});
});
// 添加到已上传的图片的列表防止重复上传
UploadedImg.Add(imgNode.HashMd5, response.Data.Url);
_ = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
dialog.Content = $"{data.FileInfo.IndexOf(info) + 1}/{data.FileInfo.Count} 上传完成!";
});
}
}).ToArray();
// 逐个执行
await Task.WhenAll(tasks);
_ = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
dialog.Title = "上传完成";
dialog.Content = "所有上传任务完成";
dialog.Hide();
});
//
} catch (OssException err) {
//throw new Exception($"某张图片上传失败: {err.HResult}:{err.ErrorCode} -> {err.Message}");
dialog.Title = "上传失败";
dialog.Content = ($"某张图片上传失败: {err.HResult}:{err.ErrorCode} -> {err.Message}");
} catch (Exception err) {
//throw new Exception("上传图片上传失败: " + err.Message);
dialog.Title = "上传失败";
dialog.Content = ("上传图片上传失败: " + err.Message);
} finally {
dialog.PrimaryButtonText = "关闭";
}
}
// 遍历NodeList生成RawStruct
foreach (var node in NodeList)
{
switch (node)
{
case TextNode textNode:
list.Add(new MessageRawStructText {
Type = "text", Message = textNode.Text
});
break;
case ImageNode imageNode:
// 从已上传的图片中获取链接
string uploadedUrl = UploadedImg[imageNode.HashMd5];
list.Add(new MessageRawStructImage {
Type = "image", Description = imageNode.IntroText, Url = uploadedUrl
});
break;
}
}
return(list);
}
