Core/LFG: send SoftLock = 2 for dungeons which are out of level range, unavailable for the current expansion or not in season to hide them from the dungeon finder list

* the client isn't giving away much info on how these values could be named. All we know from sniffs is that 2 is the value used by default. Though 1 also hides dungeons, we stick with what sniffs say for now until someone with more extensive reverse engineering knowledge can dig up the solution

3 files changed, 31 insertions, 4 deletions

diff --git a/src/server/game/DungeonFinding/LFG.h b/src/server/game/DungeonFinding/LFG.h
index 1387507d00a..31d47dfed23 100644
--- a/src/server/game/DungeonFinding/LFG.h
+++ b/src/server/game/DungeonFinding/LFG.h
@@ -119,14 +119,23 @@ enum LfgAnswer
     LFG_ANSWER_AGREE                             = 1
 };
 
+/// Used to hide random LFG dungeon entries from the dungeon finder. Either value above 0 is doing that, however, only 2 is being sent in sniffs
+enum class LfgSoftLock : uint8
+{
+    None        = 0,
+    Unk1        = 1,
+    Unk2        = 2
+};
+
 struct TC_GAME_API LfgLockInfoData
 {
-    LfgLockInfoData(uint32 _lockStatus = 0, uint16 _requiredItemLevel = 0, float _currentItemLevel = 0) :
-        lockStatus(_lockStatus), requiredItemLevel(_requiredItemLevel), currentItemLevel(_currentItemLevel) { }
+    LfgLockInfoData(uint32 _lockStatus = 0, uint16 _requiredItemLevel = 0, float _currentItemLevel = 0, LfgSoftLock _softLock = LfgSoftLock::None) :
+        lockStatus(_lockStatus), requiredItemLevel(_requiredItemLevel), currentItemLevel(_currentItemLevel), softLock(_softLock) { }
 
     uint32 lockStatus;
     uint16 requiredItemLevel;
     float currentItemLevel;
+    LfgSoftLock softLock;
 };
 
 typedef std::set<uint32> LfgDungeonSet;
diff --git a/src/server/game/DungeonFinding/LFGMgr.cpp b/src/server/game/DungeonFinding/LFGMgr.cpp
index 2a132c5068c..4c18a6e0041 100644
--- a/src/server/game/DungeonFinding/LFGMgr.cpp
+++ b/src/server/game/DungeonFinding/LFGMgr.cpp
@@ -1804,8 +1804,26 @@ LfgLockMap LFGMgr::GetLockedDungeons(ObjectGuid guid)
             return 0;
         }();
 
+        LfgSoftLock softLock = [lockStatus]()
+        {
+            switch (lockStatus)
+            {
+                // Dungeons which are out of our level range, active season or expansion are hidden from the list
+                case LFG_LOCKSTATUS_TOO_LOW_LEVEL:
+                case LFG_LOCKSTATUS_TOO_HIGH_LEVEL:
+                case LFG_LOCKSTATUS_NOT_IN_SEASON:
+                case LFG_LOCKSTATUS_INSUFFICIENT_EXPANSION:
+                    return LfgSoftLock::Unk2; // only value seen in sniffs
+                default:
+                    return LfgSoftLock::None;
+
+            }
+
+            return LfgSoftLock::None;
+        }();
+
         if (lockStatus)
-            lock[dungeon->Entry()] = LfgLockInfoData(lockStatus, dungeon->requiredItemLevel, player->GetAverageItemLevel());
+            lock[dungeon->Entry()] = LfgLockInfoData(lockStatus, dungeon->requiredItemLevel, player->GetAverageItemLevel(), softLock);
     }
 
     return lock;
diff --git a/src/server/game/Handlers/LFGHandler.cpp b/src/server/game/Handlers/LFGHandler.cpp
index 8ee1aede0c3..5d850fc976f 100644
--- a/src/server/game/Handlers/LFGHandler.cpp
+++ b/src/server/game/Handlers/LFGHandler.cpp
@@ -157,7 +157,7 @@ void WorldSession::SendLfgPlayerLockInfo()
 
     // Get player locked Dungeons
     for (auto const& lock : sLFGMgr->GetLockedDungeons(_player->GetGUID()))
-        lfgPlayerInfo.BlackList.Slot.emplace_back(lock.first, lock.second.lockStatus, lock.second.requiredItemLevel, lock.second.currentItemLevel, 0);
+        lfgPlayerInfo.BlackList.Slot.emplace_back(lock.first, lock.second.lockStatus, lock.second.requiredItemLevel, lock.second.currentItemLevel, AsUnderlyingType(lock.second.softLock));
 
     for (uint32 slot : randomDungeons)
     {