Optimize BigFile access

Bigfoot/Sources/Engine/BigFile/BigFile.cpp

@@ -64,6 +64,22 @@ BigFile::~BigFile()
 
 /****************************************************************************************/
 
+eastl::optional<eastl::vector<std::byte>> BigFile::GetAssetFlatbuffer(const UUID& p_uuid) const
+{
+    BigFile::Request assetRequest {*this, "SELECT Asset FROM Asset WHERE UUID = ?1;"};
+    assetRequest.Bind(1, p_uuid.ToBytes());
+
+    if (!assetRequest.Step())
+    {
+        return eastl::nullopt;
+    }
+
+    const eastl::span<const std::byte> flatbuffer = assetRequest.Get(0);
+    return eastl::vector<std::byte> {flatbuffer.begin(), flatbuffer.end()};
+}
+
+/****************************************************************************************/
+
 eastl::vector<eastl::vector<std::byte>> BigFile::GetAssetFlatbuffers(const eastl::span<const UUID> p_uuids) const
 {
     eastl::vector<eastl::vector<std::byte>> flatbuffers;
@@ -77,6 +93,7 @@ eastl::vector<eastl::vector<std::byte>> BigFile::GetAssetFlatbuffers(const eastl
     uniqueUUIDs.erase(eastl::unique(uniqueUUIDs.begin(), uniqueUUIDs.end()), uniqueUUIDs.end());
 
     eastl::string placeholders;
+    placeholders.reserve(uniqueUUIDs.size() * 3);
     for (std::size_t i = 0; i < uniqueUUIDs.size(); ++i)
     {
         if (i > 0)
@@ -84,13 +101,9 @@ eastl::vector<eastl::vector<std::byte>> BigFile::GetAssetFlatbuffers(const eastl
             placeholders += ", ";
         }
         placeholders += "?";
-        placeholders += std::to_string(i + 1).c_str();
     }
 
-    const std::string sqlRequest = fmt::format("SELECT Asset.Asset FROM Asset "
-                                               "JOIN AssetMetadata ON AssetMetadata.UUID = Asset.UUID "
-                                               "WHERE Asset.UUID IN ({});",
-                                               placeholders);
+    const std::string sqlRequest = fmt::format("SELECT Asset FROM Asset WHERE UUID IN ({});", placeholders);
 
     BigFile::Request assetRequest {*this, sqlRequest.c_str()};
     for (std::size_t i = 0; i < uniqueUUIDs.size(); ++i)
@@ -115,6 +128,30 @@ eastl::vector<eastl::vector<std::byte>> BigFile::GetAssetFlatbuffers(const eastl
 
 /****************************************************************************************/
 
+eastl::optional<AssetMetadata> BigFile::GetAssetMetadata(const UUID& p_uuid) const
+{
+    BigFile::Request assetRequest {
+      *this,
+      "SELECT UUID, Name, TypeID, TypeName, CreateTime, ModificationTime FROM AssetMetadata WHERE UUID = ?1;"};
+    assetRequest.Bind(1, p_uuid.ToBytes());
+
+    if (!assetRequest.Step())
+    {
+        return eastl::nullopt;
+    }
+
+    return AssetMetadata {.m_uuid = UUID {std::span<const std::byte, UUID::UUID_BYTE_SIZE> {
+                            static_cast<eastl::span<const std::byte>>(assetRequest.Get(0)).data(),
+                            UUID::UUID_BYTE_SIZE}},
+                          .m_name = eastl::string {static_cast<eastl::string_view>(assetRequest.Get(1))},
+                          .m_typeID = assetRequest.Get(2),
+                          .m_typeName = eastl::string {static_cast<eastl::string_view>(assetRequest.Get(3))},
+                          .m_creationTime = Time {static_cast<std::uint64_t>(assetRequest.Get(4))},
+                          .m_modificationTime = Time {static_cast<std::uint64_t>(assetRequest.Get(5))}};
+}
+
+/****************************************************************************************/
+
 eastl::vector<AssetMetadata> BigFile::GetAssetMetadatas(const eastl::span<const UUID> p_uuids) const
 {
     eastl::vector<AssetMetadata> metadatas;
@@ -128,6 +165,7 @@ eastl::vector<AssetMetadata> BigFile::GetAssetMetadatas(const eastl::span<const
     uniqueUUIDs.erase(eastl::unique(uniqueUUIDs.begin(), uniqueUUIDs.end()), uniqueUUIDs.end());
 
     eastl::string placeholders;
+    placeholders.reserve(uniqueUUIDs.size() * 3);
     for (std::size_t i = 0; i < uniqueUUIDs.size(); ++i)
     {
         if (i > 0)
@@ -135,7 +173,6 @@ eastl::vector<AssetMetadata> BigFile::GetAssetMetadatas(const eastl::span<const
             placeholders += ", ";
         }
         placeholders += "?";
-        placeholders += std::to_string(i + 1).c_str();
     }
 
     const std::string sqlRequest = fmt::format("SELECT UUID, Name, TypeID, TypeName, CreateTime, ModificationTime "