private async void OnTimedEvent(Object source, ElapsedEventArgs e)
{
if (!itemsQueue.Any())
{
return;
}
var item = itemsQueue.Dequeue();
try
{
var newInfo = item.Source switch
{
PullAndBear.SHOP_NAME => await _pullAndBearClient.GetItemInfoAsync(item.Url),
Bershka.SHOP_NAME => await _bershkaClient.GetItemInfoAsync(item.Url),
_ => throw new Exception(Exceptions.UNKNOWN_SHOP_EXCEPTION),
};
if (item.Status != newInfo.Status || item.Price != newInfo.Price)
{
await _botService.SendMessageMarkdownV2Async(
item.ChatId,
_textConverter.ToString(item, newInfo));
}
_updateInfoHelper.GetUpdatedItem(ref item, newInfo);
await _trackingRepository.UpdateInfoOfItemAsync(item);
}
catch (Exception ex)
{
// it's ok; lets update item information next time;
}
if ((DateTime.Now - item.LastUpdateDate).TotalHours > maxTimeWithoutUpdateIntervalHours)
{
await _trackingRepository.RemoveItemAsync(item.Url);
await _botService.SendMessageAsync(
item.ChatId,
WANNA_REMOVE_ITEM_EXCEPTION);
}
else
{
itemsQueue.Enqueue(item);
if ((DateTime.Now - item.LastUpdateDate).TotalHours > maxUpdateTimeIntervalHours)
{
await _botService.SendMessageAsync(
item.ChatId,
CANT_UPDATE_EXCEPTION);
}
}
}
public async Task <Item> AddNewItemAsync(Message message)
{
var url = Regex.Match(message.Text, Common.UrlTemplate).Value;
if (string.IsNullOrEmpty(url))
{
throw new Exception(NEED_INLINE_LINK_EXCEPTION);
}
if (await _trackingRepository.IsTrackedAsync(url, message.From.Id))
{
throw new Exception(Exceptions.ALREADY_TRACKED_EXCEPTION);
}
var shopName = _shopDefiner.GetShopName(url);
var newInfo = shopName switch
{
PullAndBear.SHOP_NAME => await _pullAndBearClient.GetItemInfoAsync(url),
Bershka.SHOP_NAME => await _bershkaClient.GetItemInfoAsync(url),
_ => throw new Exception(Exceptions.UNKNOWN_SHOP_EXCEPTION),
};
var newItem = _mapper.Map <ItemOnline, Item>(newInfo);
newItem.Url = url;
newItem.StartTrackingDate = DateTime.Now;
newItem.LastUpdateDate = newItem.StartTrackingDate;
newItem.Source = shopName;
newItem.ChatId = message.Chat.Id;
newItem.UserId = message.From.Id;
var itemId = await _trackingRepository.AddNewItemAsync(newItem);
newItem.ItemId = itemId;
_timerService.Enqueue(newItem);
return(newItem);
}