private async Task HandleSubscribeCommandAsync(Message message)
{
var from = message.From;
var(command, parameters) = message.ExtractCommand(Self);
if (parameters.Count < 3)
{
await Client.SendTextBlockAsync(message.Chat,
$"Usage:\n{CommandHandlers[command].usage}",
cancellationToken : CancellationToken).ConfigureAwait(false);
return;
}
if (!Enums.TryParse <CryptoExchangeId> (parameters[0], true, out var exchangeId))
{
await Client.SendTextBlockAsync(message.Chat,
$"{parameters[0]} is not a valid Exchange name",
cancellationToken : CancellationToken).ConfigureAwait(false);
return;
}
if (!decimal.TryParse(parameters[1].Trim('%'), out var threshold))
{
await Client.SendTextBlockAsync(message.Chat,
$"{parameters[1]} is not a valid percentage value",
cancellationToken : CancellationToken).ConfigureAwait(false);
return;
}
var index = bool.TryParse(parameters[2].ToLower( ), out var isSilent) ? 3 : 2;
var subscription = new TelegramPercentChangeSubscription(
message.Chat,
from,
exchangeId,
threshold / 100m,
isSilent,
parameters
.Skip(index)
.Select(x => x.Trim(' ', ','))
);
await AddOrUpdateSubscriptionAsync(subscription).ConfigureAwait(false);
}
public EditSubscriptionPage(IMenu menu,
TelegramPercentChangeSubscription subscription,
IPage previousPage) :
base("Edit Subscription", menu, previousPage: previousPage)
{
Subscription = subscription;
Title = $"Edit Subscription:\n{subscription.Summary ( )}";
Labels = new[] { "change silence mode", "change threshold", "add symbols", "remove symbols" }
.Batch(2)
.ToList( );
AddWideLabel("delete");
AddWideLabel("back");
BuildKeyboard( );
AddHandlers( );
}
private async Task AddSubscriptionHandlerAsync(CallbackQuery query)
{
var exchangeId = await RunExchangeSelectionPageAsync( ).ConfigureAwait(false);
if (!exchangeId)
{
return;
}
await Menu.RequestReplyAsync("Enter the threshold%").ConfigureAwait(false);
var threshold = await ReadPercentageAsync( ).ConfigureAwait(false);
if (threshold is null)
{
return;
}
var isSilent = await RunSelectionPageAsync(new[] { "yes", "no" }.Batch ( 2 ), "Keep Silent?")
.ConfigureAwait(false);
if (!isSilent)
{
return;
}
var symbols = await ReadSymbolsAsync( ).ConfigureAwait(false);
var subscription = new TelegramPercentChangeSubscription(
Chat,
User,
exchangeId.Result,
threshold.Value,
isSilent.Result == "yes",
symbols
);
await TelegramBot.AddOrUpdateSubscriptionAsync(subscription).ConfigureAwait(false);
await RedrawAsync( ).ConfigureAwait(false);
}
public async Task AddOrUpdateSubscriptionAsync(TelegramPercentChangeSubscription subscription)
{
var list = Data.GetPercentChangeSubscriptions(x => x.IsSimilarTo(subscription));
var existing = list.SingleOrDefault(x => x.Threshold == subscription.Threshold);
if (existing is null)
{
Data.AddOrUpdate(subscription);
subscription.Trigger += async(sub,
old,
current) =>
Data.AddOrUpdate(sub as TelegramPercentChangeSubscription);
await subscription.StartAsync(this, true).ConfigureAwait(false);
return;
}
await existing.MergeWithAsync(subscription).ConfigureAwait(false);
Data.AddOrUpdate(existing);
}
public bool AddOrUpdate(TelegramPercentChangeSubscription subscription) => PercentChangeSubscriptions.AddOrUpdate(subscription);
