public static StateNews Execute(StateNews state, IAction action)
{
if (action is NewsFetchAction)
{
return(new StateNews(state)
{
IsBusy = true
});
}
else if (action is NewsFetchSuccessAction)
{
var success = action as NewsFetchSuccessAction;
var modelsMap = success.Articles.ToImmutableDictionary(model => model.Id);
modelsMap = state.ArticlesById.SetItems(modelsMap);
var ids = modelsMap.Keys.ToImmutableList();
return(new StateNews(state)
{
IsBusy = false,
ArticlesById = modelsMap,
VisibleArticlesIds = ids
});
}
else if (action is NewsFetchFailureAction)
{
// var failure = action as NewsFetchFailureAction;
return(new StateNews(state)
{
IsBusy = false
});
}
return(state);
}
public StateNews(StateNews other)
{
ArticlesById = other.ArticlesById;
VisibleArticlesIds = other.VisibleArticlesIds;
IsBusy = other.IsBusy;
}