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Implement native RT.DAT read history

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gamer147
2026-07-24 15:11:30 -04:00
parent 4d8812d5d3
commit 70643ceb2b
19 changed files with 646 additions and 28 deletions
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28
engine/Age.Engine/Persistence/NativeDatStore.cs
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@@ -39,6 +39,8 @@ public interface INativeDatStore
NativeSaveIdentity Identity { get; }
NativeSaveDocument? LoadShared();
void SaveShared(ReadOnlySpan<byte> payload, NativeSystemTime timestamp, uint accumulatedPlaySeconds);
ReadTextDatabaseSnapshot? LoadReadText();
void SaveReadText(ReadTextDatabaseSnapshot snapshot);
NativeSaveDocument? LoadNumbered(int slot);
void SaveNumbered(int slot, ReadOnlySpan<byte> payload, NativeSystemTime timestamp, uint accumulatedPlaySeconds);
}
@@ -53,6 +55,9 @@ public sealed class DirectoryNativeDatStore : INativeDatStore
public const string SharedFileName = "SAVE.DAT";
public const string SharedTemporaryFileName = "$$SAVE.DAT";
public const string SharedBackupFileName = "SAVE.BAK";
public const string ReadTextFileName = "RT.DAT";
public const string ReadTextTemporaryFileName = "$$RT.DAT";
public const string ReadTextBackupFileName = "RT.BAK";
private readonly string _root;
private readonly NativeSaveIdentity _identity;
@@ -112,6 +117,29 @@ public sealed class DirectoryNativeDatStore : INativeDatStore
File.Move(temporary, primary);
}
public ReadTextDatabaseSnapshot? LoadReadText()
{
string path = Path.Combine(_root, ReadTextFileName);
return File.Exists(path)
? ReadTextDatabaseCodec.Decode(File.ReadAllBytes(path), _identity)
: null;
}
public void SaveReadText(ReadTextDatabaseSnapshot snapshot)
{
ArgumentNullException.ThrowIfNull(snapshot);
byte[] encoded = ReadTextDatabaseCodec.Encode(snapshot, _identity);
Directory.CreateDirectory(_root);
string temporary = Path.Combine(_root, ReadTextTemporaryFileName);
string primary = Path.Combine(_root, ReadTextFileName);
string backup = Path.Combine(_root, ReadTextBackupFileName);
WriteThrough(temporary, encoded);
if (File.Exists(backup)) File.Delete(backup);
if (File.Exists(primary)) File.Move(primary, backup);
File.Move(temporary, primary);
}
public NativeSaveDocument? LoadNumbered(int slot)
{
string path = Path.Combine(_root, NumberedFileName(slot));