Added ability to export peer ids from contact list.

Telegram/SourceFiles/export/export_api_wrap.cpp

@@ -13,6 +13,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "export/output/export_output_file.h"
 #include "mtproto/mtproto_response.h"
 #include "base/bytes.h"
+#include "base/options.h"
 #include "base/random.h"
 #include <set>
 #include <deque>
@@ -1069,7 +1070,35 @@ void ApiWrap::requestContacts(FnMut<void(Data::ContactsList&&)> done) {
 	mainRequest(MTPcontacts_GetSaved(
 	)).done([=](const MTPVector<MTPSavedContact> &result) {
 		_contactsProcess->result = Data::ParseContactsList(result);
-		requestTopPeersSlice();
+
+		const auto resolve = [=](int index, const auto &resolveNext) -> void {
+			if (index == _contactsProcess->result.list.size()) {
+				return requestTopPeersSlice();
+			}
+			const auto &contact = _contactsProcess->result.list[index];
+			mainRequest(MTPcontacts_ResolvePhone(
+				MTP_string(qs(contact.phoneNumber))
+			)).done([=](const MTPcontacts_ResolvedPeer &result) {
+				auto &contact = _contactsProcess->result.list[index];
+				contact.userId = result.data().vpeer().match([&](
+						const MTPDpeerUser &user) {
+					return UserId(user.vuser_id());
+				}, [](const auto &) {
+					return UserId();
+				});
+				resolveNext(index + 1, resolveNext);
+			}).fail([=](const MTP::Error &) {
+				resolveNext(index + 1, resolveNext);
+				return true;
+			}).send();
+		};
+
+		if (base::options::lookup<bool>("show-peer-id-below-about").value()) {
+			resolve(0, resolve);
+		} else {
+			requestTopPeersSlice();
+		}
+
 	}).send();
 }