protected override async Task ExecuteAsync(CancellationToken cancellationToken)
{
_logger.LogInformation("Screen Background Service is starting.");
using (var scope = _scopeFactory.CreateScope())
{
_data = scope.ServiceProvider.GetRequiredService <IVolatileDataService>();
IEnumerable <Item> activeCustomItems =
_data.GetAllActive().Where(i => !(i is RSSItem || i is ClockItem || i is WeatherItem));
IEnumerable <Item> activeRSSItems = _data.GetAllActive().Where(i => i is RSSItem);
activeCustomItems.ToList().Shuffle();
activeRSSItems.ToList().Shuffle();
Item currentItem = activeCustomItems.FirstOrDefault();
Item screenItem = currentItem;
Item currentRssItem = null;
bool showClock = true;
while (!cancellationToken.IsCancellationRequested)
{
activeCustomItems = _data.GetAllActive()
.Where(i => !(i is RSSItem || i is ClockItem || i is WeatherItem));
activeRSSItems = _data.GetAllActive().Where(i => i is RSSItem);
try
{
if (screenItem != null)
{
// Send item to clients via websockets
_logger.LogInformation($"Send item: {(screenItem.Title)}.");
//SEND TO CLIENTS
await _hubContext.Clients.All.BroadcastSlide(new ScreenItemViewModel(screenItem));
await Task.Delay(TimeSpan.FromSeconds(screenItem.DisplayTime));
}
else
{
await Task.Delay(TimeSpan.FromSeconds(3));
}
// Obtain new item
Random r = new Random();
ClockItem clock = _data.GetSingle <ClockItem>();
WeatherItem weather = _data.GetSingle <WeatherItem>();
// bool checkIfRSSFeedActive = _data.AnyRssFeedActive();
// bool checkIfRssItemsExist = activeRSSItems.ToList().Count > 0;
// bool checkIfRssShow = r.NextBool(25);
if (_data.AnyRssFeedActive() && activeRSSItems.ToList().Count > 0 && r.NextBool(25))
{
// Toon RSS Item als er actieve RSS feeds zijn en met een (pseudo) kans van 25%
currentRssItem = GetNextItem(currentRssItem, activeRSSItems);
screenItem = currentRssItem ?? screenItem;
}
else if (!(screenItem is ClockItem || screenItem is WeatherItem) && r.NextBool(35) &&
((showClock && clock.Active) || (!showClock && weather.Active)))
{
screenItem = showClock ? (Item)clock : weather;
showClock = !showClock;
}
else
{
currentItem = GetNextItem(currentItem, activeCustomItems);
screenItem = currentItem ?? screenItem;
}
}
catch (Exception ex)
{
_logger.LogError(ex, $"An unexpected error occurred in ScreenBackgroundController.");
}
}
}
_logger.LogInformation("Screen Background Service is stopping.");
}
protected async override Task ExecuteAsync(CancellationToken cancellationToken)
{
_logger.LogInformation("Renew Background Service is starting.");
var counter = 0;
using (var scope = _scopeFactory.CreateScope())
{
_data = scope.ServiceProvider.GetRequiredService <IVolatileDataService>();
_rss = scope.ServiceProvider.GetRequiredService <IRSSService>();
while (!cancellationToken.IsCancellationRequested)
{
try
{
counter++;
_logger.LogInformation("Checking state of items.");
_data.CheckItemState();
if (counter >= CheckRSSRenewCount)
{
_logger.LogInformation("Renewing RSSFeed items and weather forecast.");
var renewed = _rss.RenewActiveRssFeeds().Result;
using (var client = new HttpClient())
{
try
{
client.BaseAddress = new Uri("https://api.openweathermap.org");
var city = _data.GetSettingByName("WeatherLocation");
var response = await client.GetAsync($"/data/2.5/forecast?q={city}&appid=e9e81d9533487c8075cd2f47af1ef9ae&units=metric&lang=nl");
response.EnsureSuccessStatusCode();
var stringResult = await response.Content.ReadAsStringAsync();
WeatherItem weather = _data.GetSingle <WeatherItem>();
weather.Forecast = stringResult;
_data.Edit(weather);
_data.Commit();
}
catch (HttpRequestException httpRequestException)
{
_logger.LogInformation($"Error getting weather from OpenWeather: {httpRequestException.Message}");
}
}
counter = 0;
}
await Task.Delay(TimeSpan.FromSeconds(CheckItemStateInterval));
}
catch (Exception ex)
{
_logger.LogError(ex, $"An unexpected error occurred in RenewBackgroundController.");
}
}
}
_logger.LogInformation("Renew Background Service is stopping.");
}