show implicitly unlocked items in schematic unlock dialog

src/lib/sim/Simulation.h

@@ -154,6 +154,26 @@ private:
     // Recomputes m_unlockedRecipeIds and m_unlockedItemIds from current schematic state.
     void recomputeUnlocked();
 
+    // Result of the REQ-LOCK-IMPLICIT traversal.
+    struct UnlockedSets
+    {
+        std::set<std::string> itemIds;
+        std::set<std::string> recipeIds;
+    };
+
+    // Pure REQ-LOCK-IMPLICIT traversal given hypothetical explicit-unlock sets.
+    UnlockedSets computeUnlockedSets(const std::set<std::string>& unlockedShipSchematicIds,
+                                      const std::set<std::string>& unlockedModuleSchematicIds,
+                                      const std::set<std::string>& unlockedRecipeSchematicIds) const;
+
+    // Current explicit-unlock id sets, derived from m_schematicLevels / m_moduleSchematicLevels.
+    std::set<std::string> getUnlockedShipSchematicIds() const;
+    std::set<std::string> getUnlockedModuleSchematicIds() const;
+
+    // Display names (deduplicated, alphabetical) of output items of recipes in
+    // hypothetical.recipeIds that are not yet in m_unlockedRecipeIds.
+    std::vector<std::string> computeNewlyUnlockedItemNames(const UnlockedSets& hypothetical) const;
+
     EntityAdmin                       m_admin;
     BeltSystem                        m_beltSystem;
     std::unique_ptr<BuildingSystem>   m_buildingSystem;