Code/SboxSuperuser/Core/Props/PropCleanupCodec.cs
A codec for the prop cleanup setting. Reads and writes the JSON blob ("schema", "delaySeconds") that holds the cleanup delay, using null to mean props are kept, and validates schema version and value via PropCleanup.Problem.
using System.Text.Json;
using SboxSuperuser.Core.Storage;
namespace SboxSuperuser.Core.Props;
/// <summary>Stores the cleanup delay as {"schema":1,"delaySeconds":120}, with null delaySeconds to keep props.</summary>
internal static class PropCleanupCodec
{
internal static PropCleanup ReadState( string stateJson )
{
using var json = JsonDocument.Parse( stateJson );
var state = json.RootElement;
StoreFormat.RequireFields( state, "schema", "delaySeconds" );
if ( state.GetProperty( "schema" ).GetInt32() != 1 ) throw new UnsupportedStoreSchemaException();
var seconds = state.GetProperty( "delaySeconds" );
var delay = seconds.ValueKind == JsonValueKind.Null ? (TimeSpan?)null : TimeSpan.FromSeconds( seconds.GetInt64() );
if ( PropCleanup.Problem( delay ) is { } problem ) throw new FormatException( problem );
return new PropCleanup( delay );
}
internal static string WriteState( PropCleanup cleanup ) =>
JsonSerializer.Serialize( new { schema = 1, delaySeconds = cleanup.Delay is { } delay ? (long?)(long)delay.TotalSeconds : null } );
}