public async Task <ChatRoomDto> InviteToRoomAsync(string userId, string roomId)
{
if (String.IsNullOrEmpty(userId))
{
throw new ArgumentNullException(nameof(userId));
}
if (String.IsNullOrEmpty(roomId))
{
throw new ArgumentNullException(nameof(roomId));
}
if (userId == identityService.CurrentUserId)
{
throw new ArgumentException("User cannot invite himself to chat room", nameof(userId));
}
UserEntity user = await this.userRepo.FindByIdAsync(userId);
if (user == null)
{
throw new Exception($"Cannot find user with Id {userId}");
}
//var room = await this.roomRepo.FindByIdAsync(roomId);
//if (room == null)
//{
// throw new Exception($"Cannot find room with Id {roomId}");
//}
await roomRepo.AddParticipantsAsync(roomId, new[] { userId });
var room = await this.roomRepo.FindByIdAsync(roomId);
ChatRoomDto model = mapper.Map <ChatRoomEntity, ChatRoomDto>(room);
await notificator.Notificate(new ChatJoinNoitification(new NewChatUser
{
Room = model,
User = mapper.Map <UserEntity, UserDto>(user)
}, model.Participants.Select(x => x.Id).Where(x => String.Compare(x, user.Id, true) != 0).ToArray()));
await notificator.Notificate(new NewChatNotification(model, new[] { user.Id }));
return(model);
}