public IssueViewModel(
string username, string repository, int issueId,
IApplicationService applicationService = null, IMarkdownService markdownService = null,
IMessageService messageService = null, IAlertDialogService alertDialogService = null,
IActionMenuService actionMenuService = null)
{
_applicationService = applicationService = applicationService ?? Locator.Current.GetService <IApplicationService>();
messageService = messageService ?? Locator.Current.GetService <IMessageService>();
markdownService = markdownService ?? Locator.Current.GetService <IMarkdownService>();
alertDialogService = alertDialogService ?? Locator.Current.GetService <IAlertDialogService>();
actionMenuService = actionMenuService ?? Locator.Current.GetService <IActionMenuService>();
Title = "Issue #" + issueId;
Username = username;
Repository = repository;
IssueId = issueId;
GoToWebCommand = ReactiveCommand.Create <string>(
url => NavigateTo(new WebBrowserViewModel(url)));
GoToReporterCommand = ReactiveCommand.Create(
() => NavigateTo(new UserViewModel(Issue.ReportedBy.Username)),
this.WhenAnyValue(x => x.Issue.ReportedBy.Username).Select(x => x != null));
GoToAssigneeCommand = ReactiveCommand.Create(
() => NavigateTo(new UserViewModel(Issue.Responsible.Username)),
this.WhenAnyValue(x => x.Issue.Responsible.Username).Select(x => x != null));
GoToEditCommand = ReactiveCommand.Create(
() => NavigateTo(new IssueEditViewModel(username, repository, Issue)),
this.WhenAnyValue(x => x.Issue).Select(x => x != null));
this.WhenAnyValue(x => x.Issue)
.Select(x => x?.Responsible?.Username ?? "Unassigned")
.ToProperty(this, x => x.Assigned, out _assigned, "Unassigned");
this.WhenAnyValue(x => x.Issue.Content)
.Select(x => string.IsNullOrEmpty(x) ? null : markdownService.ConvertMarkdown(x))
.ToProperty(this, x => x.Description, out _description);
this.WhenAnyValue(x => x.Description)
.Select(x => !string.IsNullOrEmpty(x))
.ToProperty(this, x => x.ShowDescription, out _showDescription);
Comments = _comments.CreateDerivedCollection(x =>
new CommentItemViewModel(x.AuthorInfo.Username,
new Utils.Avatar(x.AuthorInfo.Avatar),
x.UtcCreatedOn.Humanize(),
markdownService.ConvertMarkdown(x.Content)));
LoadCommand = ReactiveCommand.CreateFromTask(async t => {
var issueTask = applicationService.Client.Issues.Get(username, repository, issueId);
applicationService.Client.Issues.GetComments(username, repository, issueId)
.ToBackground(x => _comments.Reset(x.Where(y => !string.IsNullOrEmpty(y.Content))));
Issue = await issueTask;
});
DeleteCommand = ReactiveCommand.CreateFromTask(async _ =>
{
try
{
var prompt = await alertDialogService.PromptYesNo(
"Are you sure?", "You are about to permanently delete issue #" + Issue.LocalId + ".");
if (prompt)
{
await applicationService.Client.Issues.Delete(username, repository, Issue.LocalId);
messageService.Send(new IssueDeleteMessage(Issue));
DismissCommand.ExecuteNow();
}
}
catch (Exception e)
{
this.Log().ErrorException("Error deleting issue", e);
}
});
ShowMenuCommand = ReactiveCommand.CreateFromTask(sender =>
{
var menu = actionMenuService.Create();
menu.AddButton("Edit", _ => GoToEditCommand.ExecuteNow());
menu.AddButton("Delete", _ => DeleteCommand.ExecuteNow());
return(menu.Show(sender));
});
_issueMessageBus = messageService.Listen <IssueUpdateMessage>(x =>
{
if (x.Issue.LocalId == issueId)
{
Issue = x.Issue;
}
});
}