async Task <Result <MdFileInfo> > FindFileInfoAsync(FileSystemPath path)
{
if (!_path.IsParentOf(path))
{
return(new InvalidOperation <MdFileInfo>("Incorrect path"));
}
if (!path.IsFile)
{
return(new InvalidOperation <MdFileInfo>("Path is not a file"));
}
// a stored MdFileInfo is a reference (i.e. the locator) to the actual Md holding data
var(data, errors) = await _indexer.GetAllValuesAsync <MdFileInfo>(path.Path).ConfigureAwait(false);
var list = data.ToList();
if (list.Count == 0)
{
return(new KeyNotFound <MdFileInfo>(string.Join(',', errors)));
}
if (list.Count > 1)
{
return(new MultipleResults <MdFileInfo>($"Expected 1 result, found: {list.Count}."));
}
var md = await MdAccess.LocateAsync(list.Single().Locator); // finally locate the actual md, which our stored MdFileInfo uses to
return(Result.OK(SetupFileInfo(path, md.Value))); // Get / Set actions will be injected into the encapsulating MdFileInfo, which acts directly upon its Md
}
public async Task <Result <T> > FindByKeyAsync <T>(string key)
{
var type = typeof(T).Name;
var indexKey = $"{type}/{key}";
var(data, errors) = await _indexer.GetAllValuesAsync <T>(indexKey).ConfigureAwait(false);
var list = data.ToList();
if (list.Count == 0)
{
return(new KeyNotFound <T>(string.Join(',', errors)));
}
if (list.Count > 1)
{
return(new MultipleResults <T>($"Expected 1 result, found: {list.Count}."));
}
return(Result.OK(list.Single()));
}
