private async Task <Activity> HandleSystemMessage(Activity message)
{
if (message.Type == ActivityTypes.DeleteUserData)
{
// Implement user deletion here
// If we handle user deletion, return a real message
}
else if (message.Type == ActivityTypes.ConversationUpdate)
{
using (var repository = new ChatBotRepository <User>())
{
if (message.MembersAdded != null && message.MembersAdded.Any() && !(message.MembersAdded.Any(x => x.Name == "Bot") && message.MembersAdded.Count == 1))
{
await GenerateWelcomeMessage(message);
List <User> members = new List <User>();
foreach (var user in message.MembersAdded)
{
repository.Create(new User
{
ToId = user.Id,
ToName = user.Name,
FromId = message.Recipient.Id,
FromName = message.Recipient.Name,
ServiceUrl = message.ServiceUrl,
ChannelId = message.ChannelId,
ConversationId = message.Conversation.Id,
});
}
}
if (message.MembersRemoved != null && message.MembersRemoved.Any())
{
var members = repository.GetCollection.Where(x => x.ConversationId == message.Conversation.Id)
.Where(x => message.MembersRemoved.FirstOrDefault(y => y.Name == x.ToName) != null);
foreach (var user in members)
{
repository.Remove(user);
}
}
}
}
else if (message.Type == ActivityTypes.ContactRelationUpdate)
{
// Handle add/remove from contact lists
// Activity.From + Activity.Action represent what happened
//await Conversation.SendAsync(message, () => new WelcomeDialog());
}
else if (message.Type == ActivityTypes.Typing)
{
// Handle knowing tha the user is typing
}
else if (message.Type == ActivityTypes.Ping)
{
}
return(null);
}
private string RemoveMediaElementFromDatabase(string name)
{
int?mediaItemId;
using (var repository = new ChatBotRepository <User>())
{
mediaItemId = repository.GetSender(_user.ConversationId, _user.ToName).MediaElements.FirstOrDefault(x => x.Name == name)?.Id;
}
using (var repository = new ChatBotRepository <MediaElement>())
{
if (mediaItemId == null)
{
return("Упс, но такого файла нет в базе");
}
var mediaItem = repository.FindById((int)mediaItemId);
repository.Remove(mediaItem);
return("Удаление прошо успешно, поздравляю(party)");
}
}
