PrefabCache.h

#pragma once
 
#include <Foundation/Configuration/Singleton.h>
#include <Foundation/Configuration/Startup.h>
#include <Foundation/Serialization/AbstractObjectGraph.h>
#include <Foundation/Time/Timestamp.h>
#include <Foundation/Types/UniquePtr.h>
#include <ToolsFoundation/ToolsFoundationDLL.h>
 
class plAbstractObjectGraph;
 
class PL_TOOLSFOUNDATION_DLL plPrefabCache
{
  PL_DECLARE_SINGLETON(plPrefabCache);
 
public:
  plPrefabCache();
 
  const plStringBuilder& GetCachedPrefabDocument(const plUuid& documentGuid);
  const plAbstractObjectGraph* GetCachedPrefabGraph(const plUuid& documentGuid);
  void LoadGraph(plAbstractObjectGraph& out_graph, plStringView sGraph);
 
private:
  PL_MAKE_SUBSYSTEM_STARTUP_FRIEND(ToolsFoundation, plPrefabCache);
 
  struct PrefabData
  {
    PrefabData() = default;
 
    plUuid m_documentGuid;
    plString m_sAbsPath;
 
    plAbstractObjectGraph m_Graph;
    plStringBuilder m_sDocContent;
    plTimestamp m_fileModifiedTime;
  };
  PrefabData& GetOrCreatePrefabCache(const plUuid& documentGuid);
  void UpdatePrefabData(PrefabData& data);
 
  plMap<plUInt64, plUniquePtr<plAbstractObjectGraph>> m_CachedGraphs;
  plMap<plUuid, plUniquePtr<PrefabData>> m_PrefabData;
};