private static async Task GetExpertsAsync()
{
Console.WriteLine(DateTime.Now + " Discovering...");
ulong.TryParse(VkAppId, out ulong id);
if (id == 0)
{
Console.WriteLine(DateTime.Now + " Error getting VK application ID, please supply a numerical value of the application registered in VK.");
return;
}
VkontakteApi vkontakteApi = new VkontakteApi(id, VkUserApiKey, VkServiceApiKey);
await vkontakteApi.DiscoverAsync();
VkontakteBrw vkontakteBrw = new VkontakteBrw(Mobile);
await vkontakteBrw.DiscoverAsync();
if (vkontakteApi.DiscoveringCompleted.IsSet && vkontakteBrw.DiscoveringCompleted.IsSet)
{
Console.WriteLine(DateTime.Now + " Discovering completed.");
if (!string.IsNullOrEmpty(Groups))
{
Console.WriteLine(DateTime.Now + " Collecting community data...");
List <VkApiUser> potentialExperts = await GetPotentialExpertsFromGroups(vkontakteApi, vkontakteBrw, Groups.Split(','));
Console.WriteLine(DateTime.Now + " Community data collected.");
Console.WriteLine(DateTime.Now + " Potential experts found: " + potentialExperts.Count);
Console.WriteLine(DateTime.Now + " Collected profiles: " + vkontakteBrw.CollectedProfiles);
Console.WriteLine(DateTime.Now + " Non-public profiles: " + vkontakteBrw.NonPublicProfiles);
Console.WriteLine(DateTime.Now + " Non-existing profiles: " + vkontakteBrw.NonExistingProfiles);
Console.WriteLine(DateTime.Now + " Empty wall profiles: " + vkontakteBrw.EmptyWallProfiles);
if (potentialExperts.Count > 0)
{
DataTable expertsTable = potentialExperts.ToDataTable(Groups);
List <DataTable> reportData = new List <DataTable>();
reportData.Add(expertsTable);
string exportPath = Path.GetDirectoryName(Environment.CurrentDirectory);
ExpertReport expertReport = new ExpertReport("ПотенциальныеЭксперты", exportPath, reportData);
expertReport.ExportToExcel();
}
}
else if (!string.IsNullOrEmpty(Users))
{
throw new NotImplementedException();
}
Console.WriteLine(DateTime.Now + " Finished.");
}
else
{
Console.WriteLine(DateTime.Now + " Cannot complete online services discovering, please check your Internet connection.");
}
}
public static async Task <List <VkApiUser> > GetPotentialExpertsFromGroups(VkontakteApi vkApi, VkontakteBrw vkBrw, string[] groups)
{
List <VkApiUser> result = new List <VkApiUser>();
int recentMonths = 3;
////bool tr = false;
////while(!tr)
////{
//// foreach (string group in groups)
//// {
//// VkApiCommunity community = await vkApi.GetCommunity(group);
//// if (community == null)
//// {
//// Console.WriteLine(DateTime.Now + " Cannot get community details for " + group + ".");
//// }
//// else
//// {
//// Console.WriteLine(DateTime.Now + " Members for group " + group + " collected.");
//// }
//// }
////}
foreach (string group in groups)
{
VkApiCommunity community = await vkApi.GetCommunityAsync(group);
if (community == null)
{
Console.WriteLine(DateTime.Now + " Cannot get community details for " + group + ".");
return(result);
}
//huge are not tested
if (community.Users.Count > 500000)
{
Console.WriteLine(DateTime.Now + " Cannot get results for community " + group + ": too many members.");
return(result);
}
Console.WriteLine(DateTime.Now + " Community: " + community.ScreenName + ". Members count: " + community.UserIds.Count);
//create BrwCommunity
List <VkBrwUser> communityUsers = new List <VkBrwUser>();
community.Users.Where(u => u.IsDeactivated == false && u.IsClosed == false).ToList()
.ForEach(user =>
{
VkBrwUser vkBrwUser = new VkBrwUser
{
ProfileLink = user.PageLink,
UserId = user.Id,
PageName = user.ScreenName,
Vkontakte = vkBrw
};
vkBrw.Users.Add(vkBrwUser);
communityUsers.Add(vkBrwUser);
});
Console.WriteLine(DateTime.Now + " Community: " + community.ScreenName + ". Open members count: " + communityUsers.Count);
Console.WriteLine(DateTime.Now + " Getting wall posts from open members...");
List <VkBrwUserWallPost> wallPosts = await vkBrw.GetWallRecords(communityUsers);
int expectedRepostsPercent = Mobile ? 40 : 50;
foreach (VkBrwUser user in vkBrw.Users)
{
List <VkBrwUserWallPost> recentWallPosts = user.WallPosts.Where(p => p.Date > DateTime.Now.AddMonths(-recentMonths) && p.Text?.Length > 30).ToList();
if (recentWallPosts.Count > 0)
{
int repostsCount = recentWallPosts.Count(p => p.Repost == true);
int ownPostsCount = recentWallPosts.Count(p => p.Repost == false);
int repostsPercent = (repostsCount * 100) / (repostsCount + ownPostsCount);
if (ownPostsCount >= recentMonths && repostsPercent <= expectedRepostsPercent)
{
VkApiUser correspondingUser = community.Users.FirstOrDefault(u => u.Id == user.UserId);
if (correspondingUser != null)
{
correspondingUser.WallPostsCount = recentWallPosts.Count;
correspondingUser.PercentReposts = repostsPercent;
correspondingUser.HaveRecentPosts = HaveRecentPosts.Yes;
if (!string.IsNullOrEmpty(correspondingUser.WorkingPlaceGroupId))
{
string commId = correspondingUser.WorkingPlaceGroupId.Split("/").Last();
VkApiCommunity commDetails = await vkApi.DiscoverCommunityAsync(commId);
if (commDetails != null)
{
correspondingUser.WorkingPlaceGroupDescription = commDetails.Name;
}
}
if (result.FirstOrDefault(u => u.Id == correspondingUser.Id) == null)
{
result.Add(correspondingUser);
}
}
}
}
}
}
return(result);
}
