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feat(inventory): GrantAsync handles currency branches

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Crystal/Rupy/RedEther/SpotCardPoint grants mutate ViewerCurrency in place
and emit post-state-total wire entries. Op log records the post-state for
later currency-collision resolution in CommitAsync.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
gamer147
2026-05-31 15:50:27 -04:00
parent 02e86cf16c
commit 3bc38b407b
2 changed files with 91 additions and 2 deletions
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52
SVSim.Database/Services/Inventory/InventoryTransaction.cs
View File

@@ -17,6 +17,12 @@ internal sealed class InventoryTransaction : IInventoryTransaction
public Viewer Viewer { get; }
public bool IsFreeplay => _freeplay.Enabled;
private readonly List<InventoryOp> _ops = new();
internal abstract record InventoryOp;
internal sealed record SpendOp(SpendCurrency Currency, long Cost, long PostState) : InventoryOp;
internal sealed record GrantOp(UserGoodsType Type, long DetailId, int Num, int PostStateOrCount, bool IsCascade) : InventoryOp;
public InventoryTransaction(
SVSimDbContext db,
IDbContextTransaction dbTx,
@@ -38,8 +44,41 @@ internal sealed class InventoryTransaction : IInventoryTransaction
public Task<SpendResult> TryDebitAsync(UserGoodsType type, long detailId, int num, CancellationToken ct = default)
=> throw new NotImplementedException();
public Task<IReadOnlyList<GrantedReward>> GrantAsync(UserGoodsType type, long detailId, int num, CancellationToken ct = default)
=> throw new NotImplementedException();
public async Task<IReadOnlyList<GrantedReward>> GrantAsync(UserGoodsType type, long detailId, int num, CancellationToken ct = default)
{
ThrowIfCommitted();
switch (type)
{
case UserGoodsType.Rupy:
Viewer.Currency.Rupees += (ulong)num;
var rupy = checked((int)Viewer.Currency.Rupees);
_ops.Add(new GrantOp(type, detailId, num, rupy, false));
return Single(type, detailId, rupy);
case UserGoodsType.Crystal:
Viewer.Currency.Crystals += (ulong)num;
var crystal = checked((int)Viewer.Currency.Crystals);
_ops.Add(new GrantOp(type, detailId, num, crystal, false));
return Single(type, detailId, crystal);
case UserGoodsType.RedEther:
Viewer.Currency.RedEther += (ulong)num;
var red = checked((int)Viewer.Currency.RedEther);
_ops.Add(new GrantOp(type, detailId, num, red, false));
return Single(type, detailId, red);
case UserGoodsType.SpotCardPoint:
Viewer.Currency.SpotPoints += (ulong)num;
var spot = checked((int)Viewer.Currency.SpotPoints);
_ops.Add(new GrantOp(type, detailId, num, spot, false));
return Single(type, detailId, spot);
default:
throw new NotImplementedException(
$"UserGoodsType {type} grant lands in a subsequent task");
}
}
public Task<int> BackfillCardCosmeticsAsync(CancellationToken ct = default)
=> throw new NotImplementedException();
@@ -51,6 +90,15 @@ internal sealed class InventoryTransaction : IInventoryTransaction
public Task<InventoryCommitResult> CommitAsync(CancellationToken ct = default)
=> throw new NotImplementedException();
private static IReadOnlyList<GrantedReward> Single(UserGoodsType type, long id, int num)
=> new[] { new GrantedReward((int)type, id, num) };
private void ThrowIfCommitted()
{
if (_committed)
throw new InvalidOperationException("Inventory transaction already committed");
}
public async ValueTask DisposeAsync()
{
if (!_committed)