52 lines
2.0 KiB
C#
52 lines
2.0 KiB
C#
namespace NeonSprawl.Server.Game.Gathering;
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/// <summary>Registry-backed lazy init and atomic depletion commits for world node instances (NEO-61).</summary>
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public static class ResourceNodeInstanceOperations
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{
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/// <summary>
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/// Decrements remaining gathers by one after lazy-init from catalog <c>maxGathers</c>. Interact wiring (NEO-63)
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/// maps <see cref="ResourceNodeInstanceReasonCodes.NodeDepleted"/> to denied interact responses.
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/// </summary>
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public static ResourceNodeInstanceMutationOutcome TryCommitSuccessfulGatherDecrement(
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string interactableId,
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IResourceNodeDefinitionRegistry registry,
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IResourceNodeInstanceStore store)
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{
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var key = ResourceNodeInstanceIds.Normalize(interactableId);
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if (key.Length == 0 || !registry.TryGetDefinition(key, out var definition))
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{
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return new ResourceNodeInstanceMutationOutcome(
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ResourceNodeInstanceMutationKind.Denied,
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ResourceNodeInstanceReasonCodes.UnknownNode,
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null);
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}
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if (!store.TryGetRemainingGathers(key, out _))
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{
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if (!store.TryEnsureInitialized(key, definition.MaxGathers))
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{
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throw new InvalidOperationException(
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$"Failed to initialize resource node instance '{key}' with maxGathers {definition.MaxGathers}.");
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}
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}
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if (store.TryDecrementRemainingGathers(key, out _, out var remaining))
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{
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return new ResourceNodeInstanceMutationOutcome(
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ResourceNodeInstanceMutationKind.Applied,
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null,
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new ResourceNodeInstanceSnapshot(key, remaining));
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}
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if (!store.TryGetRemainingGathers(key, out var current))
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{
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current = new ResourceNodeInstanceSnapshot(key, 0);
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}
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return new ResourceNodeInstanceMutationOutcome(
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ResourceNodeInstanceMutationKind.Denied,
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ResourceNodeInstanceReasonCodes.NodeDepleted,
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current);
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}
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}
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