public Task Friends([FromBody] FriendsUpdateDto dto) => _updateManager.UpdateFriendList(dto);
public Task UpdateFriendList(FriendsUpdateDto dto, ApplicationContext context = null)
{
Console.WriteLine($"{GetType()}.{nameof(UpdateFriendList)} started");
if (context == null)
{
context = new ApplicationContext(_contextService.Options);
}
if (dto.UserId == null)
{
dto.UserId = _vkApiService.GetCurrentId();
}
//Находим текущего пользователя и обновляем его связи
var currentUserEntity = context.VkUsers.FirstOrDefault(u => u.ExternalId == dto.UserId);
if (currentUserEntity == null)
{
User vkUser;
try
{
vkUser = _vkApiService.GetUser(dto.UserId);
}
catch
{
return(Task.CompletedTask);
}
currentUserEntity = new VkUser
{
ExternalId = vkUser.Id,
IsDeactivated = false,
PhotoUrl = vkUser.PhotoMaxOrig.ToString(),
FullName = $"{vkUser.FirstName} {vkUser.LastName}"
};
context.Add(currentUserEntity);
context.SaveChanges();
}
List <User> friends;
try
{
friends = _vkApiService.GetFriends(currentUserEntity.ExternalId).ToList();
}
catch
{
return(Task.CompletedTask);
}
context.RemoveRange(_friendsService.GetRemovedUsers(context, currentUserEntity.Id, friends));
var newFriends = _friendsService.GetNewUsers(context, currentUserEntity.Id, friends);
foreach (var newFriend in newFriends.Where(f => context.VkUsers.All(u => u.ExternalId != f.Id)))
{
context.VkUsers.Add(new VkUser
{
ExternalId = newFriend.Id,
FullName = $"{newFriend.FirstName} {newFriend.LastName}",
IsDeactivated = newFriend.IsDeactivated,
LastCheck = DateTime.Now,
PhotoUrl = newFriend.PhotoMaxOrig?.ToString()
});
}
context.SaveChanges();
foreach (var friend in friends)
{
if (dto.Recursive)
{
UpdateFriendList(new FriendsUpdateDto {
Recursive = false, UserId = friend.Id
}, context);
}
var friendEntity = context.VkUsers.First(f => f.ExternalId == friend.Id);
if (context.FriendsUserToUsers.Any(c =>
c.RightUserId == friendEntity.Id && c.LeftUserId == currentUserEntity.Id))
{
continue;
}
context.FriendsUserToUsers.Add(new FriendsUserToUser
{
LeftUserId = currentUserEntity.Id,
RightUserId = friendEntity.Id
});
}
context.SaveChanges();
Console.WriteLine($"{GetType()}.{nameof(UpdateFriendList)} completed");
return(Task.CompletedTask);
}
