public StateService(ServerService serverService, InstallationService installationService, DownloadService downloadService)
{
var groupedServerEvents = serverService.Servers
.Select(servers => servers
.GroupBy(s => s.ForkAndVersion));
var downloadEvents = downloadService.Downloads.GetWeakCollectionChangedObservable()
.Select(d => downloadService.Downloads)
.Merge(Observable.Return(downloadService.Downloads));
var installationEvents = installationService.Installations;
State = groupedServerEvents
.CombineLatest(installationEvents, (servers, installations) => (servers, installations))
.Select(d => d.servers.FullJoin(d.installations,
s => s.Key,
i => i.ForkAndVersion,
servers => new ForkInstall(null, null, servers.ToArray()),
installation => new ForkInstall(null, installation, new List <Server>()),
(servers, installation) => new ForkInstall(null, installation, servers.ToArray())))
.CombineLatest(downloadEvents, (join, downloads) => (join, downloads))
.Select(x => x.join.LeftJoin(x.downloads,
s => s.ForkAndVersion,
d => d.ForkAndVersion,
s => s,
(s, download) => new ForkInstall(download, s.Installation, s.Servers)))
.Select(x => x.ToDictionary(d => d.ForkAndVersion, d => d))
.Do(x => Log.Information("State changed"))
.Replay(1)
.RefCount();
}
public ServerService(HttpClient http, InstallationService installService)
{
_http = http;
_installService = installService;
Servers = Observable.Timer(TimeSpan.FromSeconds(0), TimeSpan.FromSeconds(10))
.SelectMany(_ => GetServerListAsync())
.Replay(1)
.RefCount();
}