private async void GetData(int cgKey, string url, bool isUpdate = false)
{
await DialogHost.Show(new DialogProgress("数据读取中..."), (object s, DialogOpenedEventArgs e) =>
{
Task.Run(() =>
{
// 从数据库中取出图鉴列表
var cardModels = CardUtils.GetCardModels(cgKey);
// 非手动刷新,直接调用本地缓存
if (0 != cardModels.Count && !isUpdate)
{
cardModels.ForEach(model =>
{
var iconPath = CardUtils.GetIconPath(model);
model.Icon = File.Exists(iconPath) ? iconPath : model.IconUrl;
});
return(cardModels);
}
// 首次默认爬取网页数据
var webModels = GetCardPreviewModels(url, cgKey);
SyncIconData(cardModels.Select(model => model.Md5).ToList(), webModels);
return(webModels);
}).ToObservable().ObserveOnDispatcher().Subscribe(result =>
{
CardModels.Clear();
result.ForEach(CardModels.Add);
DownloadIcon(result);
e.Session.Close();
});
});
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var md5 = value?.ToString();
var cardModel = CardUtils.GetCardModel(md5);
var iconUrl = cardModel.IconUrl;
var iconPath = CardUtils.GetIconPath(cardModel);
return(File.Exists(iconPath) ? iconPath : iconUrl);
}
// 下载图标
private void DownloadIcon(IEnumerable <CardModel> cardModels)
{
Task.Factory.StartNew(() =>
{
Thread.Sleep(1000);
var downloadModels = cardModels
.Where(model => !File.Exists(CardUtils.GetIconPath(model)))
.ToList();
foreach (var downloadModel in downloadModels)
{
DownloadImage(downloadModel.IconUrl, CardUtils.GetIconPath(downloadModel));
}
});
}
