| | | 1 | | using System.Text.Json; |
| | | 2 | | using Intentum.Core.Behavior; |
| | | 3 | | |
| | | 4 | | namespace Intentum.Persistence.Serialization; |
| | | 5 | | |
| | | 6 | | /// <summary> |
| | | 7 | | /// Shared JSON options for behavior space serialization across MongoDB and Redis. |
| | | 8 | | /// </summary> |
| | | 9 | | public static class BehaviorSpaceSerialization |
| | | 10 | | { |
| | | 11 | | public static readonly JsonSerializerOptions JsonOptions = new() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase |
| | | 12 | | } |
| | | 13 | | |
| | | 14 | | /// <summary> |
| | | 15 | | /// Document shape for behavior space (MongoDB and Redis). |
| | | 16 | | /// </summary> |
| | | 17 | | public sealed class BehaviorSpaceDocument |
| | | 18 | | { |
| | 22 | 19 | | public string Id { get; set; } = ""; |
| | 10 | 20 | | public DateTimeOffset? CreatedAt { get; set; } |
| | 28 | 21 | | public string MetadataJson { get; set; } = "{}"; |
| | 27 | 22 | | public List<BehaviorEventDocument> Events { get; set; } = []; |
| | | 23 | | |
| | | 24 | | public static BehaviorSpaceDocument From(BehaviorSpace space, string id, DateTimeOffset? createdAt = null) |
| | 8 | 25 | | { |
| | 8 | 26 | | return new BehaviorSpaceDocument |
| | 8 | 27 | | { |
| | 8 | 28 | | Id = id, |
| | 8 | 29 | | CreatedAt = createdAt, |
| | 8 | 30 | | MetadataJson = JsonSerializer.Serialize(space.Metadata, BehaviorSpaceSerialization.JsonOptions), |
| | 8 | 31 | | Events = space.Events.Select(BehaviorEventDocument.From).ToList() |
| | 8 | 32 | | }; |
| | 8 | 33 | | } |
| | | 34 | | |
| | | 35 | | public BehaviorSpace ToBehaviorSpace() |
| | 7 | 36 | | { |
| | 7 | 37 | | var space = new BehaviorSpace(); |
| | 7 | 38 | | var metadata = JsonSerializer.Deserialize<Dictionary<string, JsonElement>>(MetadataJson); |
| | 6 | 39 | | if (metadata != null) |
| | 6 | 40 | | { |
| | 26 | 41 | | foreach (var kv in metadata) |
| | 4 | 42 | | space.SetMetadata(kv.Key, kv.Value.ValueKind == JsonValueKind.Number ? kv.Value.GetDouble() : kv.Value.G |
| | 6 | 43 | | } |
| | 42 | 44 | | foreach (var evt in Events.OrderBy(e => e.OccurredAt)) |
| | 8 | 45 | | space.Observe(evt.ToBehaviorEvent()); |
| | 6 | 46 | | return space; |
| | 6 | 47 | | } |
| | | 48 | | } |
| | | 49 | | |
| | | 50 | | /// <summary> |
| | | 51 | | /// Document shape for a single behavior event (MongoDB and Redis). |
| | | 52 | | /// </summary> |
| | | 53 | | public sealed class BehaviorEventDocument |
| | | 54 | | { |
| | | 55 | | public string Actor { get; set; } = ""; |
| | | 56 | | public string Action { get; set; } = ""; |
| | | 57 | | public DateTimeOffset OccurredAt { get; set; } |
| | | 58 | | public string MetadataJson { get; set; } = "{}"; |
| | | 59 | | |
| | | 60 | | public static BehaviorEventDocument From(BehaviorEvent e) |
| | | 61 | | { |
| | | 62 | | return new BehaviorEventDocument |
| | | 63 | | { |
| | | 64 | | Actor = e.Actor, |
| | | 65 | | Action = e.Action, |
| | | 66 | | OccurredAt = e.OccurredAt, |
| | | 67 | | MetadataJson = e.Metadata != null ? JsonSerializer.Serialize(e.Metadata, BehaviorSpaceSerialization.JsonOpti |
| | | 68 | | }; |
| | | 69 | | } |
| | | 70 | | |
| | | 71 | | public BehaviorEvent ToBehaviorEvent() |
| | | 72 | | { |
| | | 73 | | var metadata = JsonSerializer.Deserialize<Dictionary<string, JsonElement>>(MetadataJson); |
| | | 74 | | object? meta = null; |
| | | 75 | | if (metadata is { Count: > 0 }) |
| | | 76 | | { |
| | | 77 | | var dict = new Dictionary<string, object>(); |
| | | 78 | | foreach (var kv in metadata) |
| | | 79 | | dict[kv.Key] = kv.Value.ValueKind == JsonValueKind.Number ? kv.Value.GetDouble() : kv.Value.GetString() |
| | | 80 | | meta = dict; |
| | | 81 | | } |
| | | 82 | | return new BehaviorEvent(Actor, Action, OccurredAt, (IReadOnlyDictionary<string, object>?)meta); |
| | | 83 | | } |
| | | 84 | | } |