/// <summary>
/// Syncs the currently registered <see cref="IBackgroundTask"/>s on the given <see cref="IBackgroundService"/> to match a collection of <see cref="IBackgroundTask"/>s.
/// </summary>
/// <param name="service">The <see cref="IBackgroundService"/> used for registering/unregistering background tasks.</param>
/// <param name="tasks">The desired collection of <see cref="IBackgroundTask"/>s to register.</param>
public static async Task RegisterCollectionAsync(this IBackgroundService service, IEnumerable <IBackgroundTask> tasks)
{
var toRemove = service.CurrentlyRegistered.Where(r => !tasks.Any(t => t.Id == r)).ToArray();
var toAdd = tasks.Where(t => !service.CurrentlyRegistered.Any(r => r == t.Id)).ToArray();
foreach (var name in toRemove)
{
service.UnRegister(name);
}
foreach (var task in toAdd)
{
await service.RegisterAsync(task);
}
}
