public async Task DecodeAsync(MemoryActivity dest = null)
{
Name = _file.GetNameWithoutExtension();
var input = await _file.OpenForReadAsync(); // file stream
if (input.Length == 0)
{
return;
}
MemoryActivity activity = dest != null ? dest : new MemoryActivity();
// use the appropriate importer type
ActivityImporter importer = null;
if (_file.Name.EndsWith(".fit", StringComparison.OrdinalIgnoreCase))
{
importer = new FitImporter(activity);
}
else if (_file.Name.EndsWith(".tcx", StringComparison.OrdinalIgnoreCase))
{
importer = new TcxImporter(activity);
}
if (importer != null)
{
await importer.LoadAsync(input);
}
await UpdateMetadata(ActivitySummary.FromActivity(dest));
}
public static ActivitySummary FromActivity(IActivitySummary activity)
{
var summary = new ActivitySummary();
summary.CopyFrom(activity);
return(summary);
}
/// <summary>
/// write properties into JSON metadata file
/// </summary>
/// <returns></returns>
private async Task UpdateMetadata(ActivitySummary summary)
{
var folder = await GetFolderAsync();
var metaDataFile = await folder.CreateFileAsync(MetaDataFileName, CreateFileOption.ReplaceExisting);
using (var stream = await metaDataFile.OpenForWriteAsync())
{
using (var textWriter = new StreamWriter(stream))
{
var serializer = new JsonSerializer();
serializer.Serialize(textWriter, summary);
}
}
}