public QuestionBlockListViewModel(Api api, OptionsViewModel options)
{
_api = api;
QuestionBlocks = new ReactiveList <QuestionBlockViewModel>();
var selectedSiteList = options.SelectedSites;
selectedSiteList.Changed
.Where(args => args.Action == NotifyCollectionChangedAction.Add)
.SelectMany(args => args.NewItems
.OfType <StackExchangeSite>()
.Select(site => CreateQuestionBlock(site, options.QuestionsPerBlock)))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(block => QuestionBlocks.Add(block));
selectedSiteList.Changed
.Where(args => args.Action == NotifyCollectionChangedAction.Remove)
.SelectMany(args => args.OldItems
.OfType <StackExchangeSite>()
.Select(site => QuestionBlocks.FirstOrDefault(qb => qb.Site.api_site_parameter == site.api_site_parameter)))
.Where(qb => qb != null)
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(qb => QuestionBlocks.Remove(qb));
options.WhenAnyValue(o => o.UpdateInterval)
.CombineLatest(options.WhenAnyValue(o => o.QuestionsPerBlock), (interval, questionCount) => new { interval, questionCount })
.Select(a => Observable.Interval(TimeSpan.FromMinutes(a.interval))
.Select(_ => a.questionCount)
.StartWith(a.questionCount))
.Switch()
.SelectMany(questionCount => ReloadAllQuestions(questionCount))
.Subscribe();
}
private async Task UpdateIssue(Issue issue)
{
var localIssue = IssuesBacking.FirstOrDefault(x => x.Url == issue.Url);
if (localIssue == null)
{
return;
}
var index = IssuesBacking.IndexOf(localIssue);
if (index < 0)
{
return;
}
var matches = System.Text.RegularExpressions.Regex.Matches(issue.Url.AbsolutePath, "/repos/([^/]+)/([^/]+)/.+");
if (matches.Count != 1 || matches[0].Groups.Count != 3)
{
return;
}
IssuesBacking[index] = await _sessionService.GitHubClient.Issue.Get(matches[0].Groups[1].Value, matches[0].Groups[2].Value, issue.Number);
IssuesBacking.Reset();
}
