1  namespace GUNRPG.Infrastructure.Persistence;
 2  
 3  /// <summary>
 4  /// LiteDB document for storing operator events.
 5  /// This is the persistence model - the event objects from Core are mapped to/from this.
 6  /// </summary>
 7  public sealed class OperatorEventDocument
 8  {
 9      /// <summary>
10      /// Auto-incrementing primary key for LiteDB.
11      /// </summary>
12      public int Id { get; set; }
13  
14      /// <summary>
15      /// The operator this event belongs to.
16      /// Indexed for fast queries.
17      /// </summary>
18      public Guid OperatorId { get; set; }
19  
20      /// <summary>
21      /// Sequential number within the operator's event stream.
22      /// Indexed for ordering.
23      /// </summary>
24      public long SequenceNumber { get; set; }
25  
26      /// <summary>
27      /// Event type discriminator (e.g., "XpGained", "WoundsTreated").
28      /// </summary>
29      public string EventType { get; set; } = string.Empty;
30  
31      /// <summary>
32      /// JSON-serialized payload.
33      /// </summary>
34      public string Payload { get; set; } = string.Empty;
35  
36      /// <summary>
37      /// Hash of the previous event in the chain.
38      /// </summary>
39      public string PreviousHash { get; set; } = string.Empty;
40  
41      /// <summary>
42      /// Hash of this event.
43      /// </summary>
44      public string Hash { get; set; } = string.Empty;
45  
46      /// <summary>
47      /// When this event was created.
48      /// </summary>
49      public DateTimeOffset Timestamp { get; set; }
50  
51      /// <summary>
52      /// The account that owns this operator.
53      /// Populated on the genesis event (SequenceNumber == 0) when the operator is created.
54      /// Not part of the event hash chain — stored as ownership metadata only.
55      /// </summary>
56      public Guid? AccountId { get; set; }
57  }