/// <inheritdoc />
public async Task ExecuteAsync(CancellationToken cancellation = default)
{
var subscriptions = await _subscriptionsStore.GetAllAsync(cancellation);
var channels = await _channelStore.GetAllAsync(cancellation);
var orphanSubscriptions = new List <AlertsSubscription>();
foreach (var subscription in subscriptions)
{
var hasMatchedChannel = channels.Any(c => string
.Equals(c.Name, subscription.Channel, StringComparison.InvariantCultureIgnoreCase));
if (!hasMatchedChannel)
{
orphanSubscriptions.Add(subscription);
}
}
_logger.LogInformation($"Found '{orphanSubscriptions.Count}' orphan subscriptions");
foreach (var orphanSubscription in orphanSubscriptions)
{
_logger.LogInformation("Removing orphan subscription {Chat} {Channel}",
orphanSubscription.ChatName, orphanSubscription.Channel);
await _subscriptionsStore.RemoveAsync(orphanSubscription, cancellation);
}
}
/// <inheritdoc />
protected override async Task Handle(BotActionRequest <UnsubscribeAction> request, CancellationToken cancellationToken)
{
var chat = request.Update.Message.Chat;
var channel = await _channelStore.GetAsync(request.Action.Channel, cancellationToken);
if (channel == null)
{
var message = Localizer.GetString(BotResources.UnsubscribeFailedChannelNotFound);
await Reply.SendAsync(new SendTelegramReply(chat.Id, message), cancellationToken);
return;
}
var existingSubscription = await _subscriptionsStore.GetAsync(chat.Id, request.Action.Channel, cancellationToken);
if (existingSubscription == null)
{
var message = Localizer.GetString(BotResources.UnsubscribeFailedNotSubscribed);
await Reply.SendAsync(new SendTelegramReply(chat.Id, message), cancellationToken);
return;
}
await _subscriptionsStore.RemoveAsync(existingSubscription, cancellationToken);
var replyMessage = Localizer.GetString(BotResources.UnsubscribeSucceed);
await Reply.SendAsync(new SendTelegramReply(chat.Id, replyMessage), cancellationToken);
}
