public InitialisationService(ILogger <InitialisationService> logger, IWebHostEnvironment environment, IServiceProvider provider, LexiconLoader loader, ConfigDownloader <ILexiconConfig> lexiconDownloader)
{
this.logger = logger ?? throw new ArgumentNullException(nameof(logger));
this.environment = environment ?? throw new ArgumentNullException(nameof(environment));
this.provider = provider ?? throw new ArgumentNullException(nameof(provider));
this.loader = loader ?? throw new ArgumentNullException(nameof(loader));
this.lexiconDownloader = lexiconDownloader;
}
protected bool DownloadConfig()
{
// download config - if needed or if could not be loaded
ConfigDownloader dl = new ConfigDownloader(GardenConfig.Instance);
configDownloadThread = new ThreadedTask(dl);
if (dl.IsDownloadNeeded())
{
// start the task
configDownloadThread.Start();
// then wait for a short while until success of the task thread
long timer = 0;
long blockingWaitPeriodTicks = System.TimeSpan.TicksPerSecond * 0; // TODO const in config
if (!GardenConfig.Instance.IsValid())
{
blockingWaitPeriodTicks = System.TimeSpan.TicksPerSecond * 30; // TODO const in config
}
if (blockingWaitPeriodTicks > 0)
{
while (configDownloadThread.Status() == ITaskStatus.CREATED)
{
// block until in RUNNING state
}
while (configDownloadThread.Status() == ITaskStatus.RUNNING && timer < blockingWaitPeriodTicks)
{
Thread.Sleep(100);
timer += (System.TimeSpan.TicksPerMillisecond * 100);
}
switch (dl.Status())
{
case ITaskStatus.SUCCESS:
GardenConfig.Instance = dl.NewConfig;
break;
case ITaskStatus.FAIL:
initError = new Exception(dl.StatusMsg());
break;
case ITaskStatus.CREATED:
case ITaskStatus.RUNNING:
// let the downloading simply finish in the background. Load it another time.
break;
}
}
}
// if still not ok after attempted download, warn the user and exit
// a missing config counts as a valid one (then uses default params to create a new config)
if (!GardenConfig.Instance.IsValid())
{
IsMouseVisible = true;
MsgBox.Show("Could not load configuration", "Could not load configuration file. Is it missing or corrupted?");
return(false);
}
return(true);
}
void Start()
{
s_instance = this;
}
