public async Task <IReadOnlyCollection <UserRepositoryResponse> > Handle(
GetRepositoriesForUserQuery request,
CancellationToken cancellationToken)
{
var databaseRepositories = await dataContext
.PullDogRepositories
.Where(x => x.PullDogSettings.UserId == request.UserId)
.ToListAsync(cancellationToken);
var allInstallationIds = databaseRepositories
.GroupBy(x => x.GitHubInstallationId !)
.Select(x => x.Key)
.Where(x => x != null)
.Select(x => x !.Value)
.ToArray();
if (allInstallationIds.Length == 0)
{
throw new InvalidOperationException("Could not find a GitHub installation ID for the user among the user's repositories.");
}
var clients = await Task.WhenAll(allInstallationIds
.Select(installationId => gitHubClientFactory
.CreateInstallationClientAsync(installationId)));
var gitHubRepositoryResponses = await Task.WhenAll(clients
.Select(client => client
.GitHubApps
.Installation
.GetAllRepositoriesForCurrent()));
var mappedGitHubRepositories = gitHubRepositoryResponses
.SelectMany(x => x.Repositories)
.Select(x => new UserRepositoryResponse()
{
Handle = x.Id.ToString(CultureInfo.InvariantCulture),
Name = x.Name,
PullDogId = null
})
.ToList();
var mappedPullDogRepositories = databaseRepositories
.Select(x => new UserRepositoryResponse()
{
Handle = x.Handle,
Name = mappedGitHubRepositories
.SingleOrDefault(r => r.Handle == x.Handle)
?.Name,
PullDogId = x.Id
})
.ToArray();
return(mappedPullDogRepositories
.Union(mappedGitHubRepositories
.Where(gh => mappedPullDogRepositories
.All(pd => pd.Handle != gh.Handle)))
.ToArray());
}