| 1 | using System.Text.Json; |
| 2 | using CascadeIDE.Models.AgentChat; |
| 3 | using IntercomWire; |
| 4 | |
| 5 | namespace CascadeIDE.Features.Intercom.Transport; |
| 6 | |
| 7 | /// <summary>Входящие transport events → локальный NDJSON (ADR 0144 §6).</summary> |
| 8 | internal static class IntercomTransportIngest |
| 9 | { |
| 10 | public static bool TryMapToLocalEvent( |
| 11 | IntercomTransportEventEnvelopeDto envelope, |
| 12 | Guid sessionId, |
| 13 | out ChatHistoryEvent? localEvent) |
| 14 | { |
| 15 | localEvent = null; |
| 16 | if (!IntercomWireTransportEventKinds.SyncDefault.Contains(envelope.EventKind)) |
| 17 | return false; |
| 18 | |
| 19 | var kind = ToLocalKind(envelope.EventKind); |
| 20 | if (kind is null) |
| 21 | return false; |
| 22 | |
| 23 | if (!Guid.TryParse(envelope.ClientEventId, out var eventId)) |
| 24 | eventId = Guid.NewGuid(); |
| 25 | |
| 26 | var at = DateTimeOffset.TryParse(envelope.OccurredAtUtc, out var occurred) |
| 27 | ? occurred |
| 28 | : DateTimeOffset.UtcNow; |
| 29 | |
| 30 | string? threadId = TryExtractThreadIdFromPayload(envelope); |
| 31 | |
| 32 | var payloadJson = envelope.Payload.GetRawText(); |
| 33 | if (string.Equals(envelope.EventKind, "message_range_related", StringComparison.Ordinal)) |
| 34 | payloadJson = IntercomTransportPayloadNormalizer.NormalizeInbound(envelope.EventKind, payloadJson); |
| 35 | |
| 36 | localEvent = new ChatHistoryEvent( |
| 37 | eventId, |
| 38 | sessionId, |
| 39 | at, |
| 40 | kind, |
| 41 | payloadJson, |
| 42 | ThreadId: threadId); |
| 43 | |
| 44 | return true; |
| 45 | } |
| 46 | |
| 47 | private static string? ToLocalKind(string wireKind) => |
| 48 | wireKind switch |
| 49 | { |
| 50 | "message_added" => ChatHistoryEventKind.MessageAdded, |
| 51 | "message_completed" => ChatHistoryEventKind.MessageCompleted, |
| 52 | "message_edited" => ChatHistoryEventKind.MessageEdited, |
| 53 | "thread_forked" => ChatHistoryEventKind.ThreadForked, |
| 54 | "message_range_related" => ChatHistoryEventKind.MessageRangeRelated, |
| 55 | _ => null, |
| 56 | }; |
| 57 | |
| 58 | private static string? TryExtractThreadIdFromPayload(IntercomTransportEventEnvelopeDto envelope) |
| 59 | { |
| 60 | try |
| 61 | { |
| 62 | if (string.Equals(envelope.EventKind, "thread_forked", StringComparison.Ordinal)) |
| 63 | { |
| 64 | var fork = envelope.Payload.Deserialize<ChatHistoryThreadForkedPayload>(IntercomTransportJson.Web); |
| 65 | return fork?.NewThreadId; |
| 66 | } |
| 67 | |
| 68 | if (string.Equals(envelope.EventKind, "message_range_related", StringComparison.Ordinal)) |
| 69 | { |
| 70 | var rel = envelope.Payload.Deserialize<ChatHistoryMessageRangeRelatedPayload>(IntercomTransportJson.Web); |
| 71 | return rel?.ThreadId; |
| 72 | } |
| 73 | |
| 74 | var msg = envelope.Payload.Deserialize<ChatHistoryMessagePayload>(IntercomTransportJson.Web); |
| 75 | return msg?.ThreadId; |
| 76 | } |
| 77 | catch (JsonException) |
| 78 | { |
| 79 | return null; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | |