| | | 1 | | using System; |
| | | 2 | | using System.Text.Json; |
| | | 3 | | using Microsoft.Extensions.Logging; |
| | | 4 | | using OzonDomains.Models.OzonWebhook; |
| | | 5 | | using Services.OzonWebhookServices.Models; |
| | | 6 | | |
| | | 7 | | namespace Services.OzonWebhookServices |
| | | 8 | | { |
| | | 9 | | /// <summary> |
| | | 10 | | /// Реализация фабрики push-уведомлений Ozon. |
| | | 11 | | /// Использует System.Text.Json с политикой snake_case для совместимости |
| | | 12 | | /// с Ozon API (как в OzonChatHttpClient). |
| | | 13 | | /// Зарегистрирован как Singleton — статичные опции инициализируются один раз. |
| | | 14 | | /// </summary> |
| | | 15 | | public sealed class OzonWebhookNotificationFactory : IOzonWebhookNotificationFactory |
| | | 16 | | { |
| | 1 | 17 | | private static readonly JsonSerializerOptions DeserializeOptions = new() |
| | 1 | 18 | | { |
| | 1 | 19 | | PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower, |
| | 1 | 20 | | NumberHandling = System.Text.Json.Serialization.JsonNumberHandling.AllowReadingFromString, |
| | 1 | 21 | | PropertyNameCaseInsensitive = true |
| | 1 | 22 | | }; |
| | | 23 | | |
| | | 24 | | private readonly ILogger<OzonWebhookNotificationFactory> _logger; |
| | | 25 | | |
| | 65 | 26 | | public OzonWebhookNotificationFactory(ILogger<OzonWebhookNotificationFactory> logger) |
| | | 27 | | { |
| | 65 | 28 | | _logger = logger; |
| | 65 | 29 | | } |
| | | 30 | | |
| | | 31 | | /// <inheritdoc/> |
| | | 32 | | public OzonMessageType GetMessageType(string json) |
| | | 33 | | { |
| | 55 | 34 | | if (string.IsNullOrWhiteSpace(json)) |
| | 4 | 35 | | return OzonMessageType.UNKNOWN; |
| | | 36 | | |
| | | 37 | | try |
| | | 38 | | { |
| | 51 | 39 | | using var document = JsonDocument.Parse(json); |
| | | 40 | | |
| | 50 | 41 | | if (document.RootElement.ValueKind != JsonValueKind.Object) |
| | 8 | 42 | | return OzonMessageType.UNKNOWN; |
| | | 43 | | |
| | 42 | 44 | | if (!document.RootElement.TryGetProperty("message_type", out var messageTypeProp)) |
| | 1 | 45 | | return OzonMessageType.UNKNOWN; |
| | | 46 | | |
| | 41 | 47 | | var rawType = messageTypeProp.GetString(); |
| | 41 | 48 | | if (string.IsNullOrEmpty(rawType)) |
| | 2 | 49 | | return OzonMessageType.UNKNOWN; |
| | | 50 | | |
| | 39 | 51 | | return Enum.TryParse<OzonMessageType>(rawType, ignoreCase: false, out var parsed) |
| | 39 | 52 | | ? parsed |
| | 39 | 53 | | : OzonMessageType.UNKNOWN; |
| | | 54 | | } |
| | 1 | 55 | | catch (JsonException ex) |
| | | 56 | | { |
| | 1 | 57 | | _logger.LogInformation("Ozon webhook: не удалось разобрать JSON для определения типа уведомления ({Messa |
| | 1 | 58 | | return OzonMessageType.UNKNOWN; |
| | | 59 | | } |
| | 51 | 60 | | } |
| | | 61 | | |
| | | 62 | | /// <inheritdoc/> |
| | | 63 | | public IOzonWebhookMessage Parse(string json) |
| | | 64 | | { |
| | 24 | 65 | | if (string.IsNullOrWhiteSpace(json)) |
| | 3 | 66 | | return new OzonUnknownNotification { MessageType = string.Empty }; |
| | | 67 | | |
| | 21 | 68 | | var messageType = GetMessageType(json); |
| | | 69 | | |
| | | 70 | | try |
| | | 71 | | { |
| | 21 | 72 | | return messageType switch |
| | 21 | 73 | | { |
| | 21 | 74 | | OzonMessageType.TYPE_PING => |
| | 1 | 75 | | Deserialize<OzonPingRequest>(json), |
| | 21 | 76 | | |
| | 21 | 77 | | OzonMessageType.TYPE_NEW_POSTING => |
| | 3 | 78 | | Deserialize<OzonNewPostingNotification>(json), |
| | 21 | 79 | | |
| | 21 | 80 | | OzonMessageType.TYPE_POSTING_CANCELLED => |
| | 2 | 81 | | Deserialize<OzonPostingCancelledNotification>(json), |
| | 21 | 82 | | |
| | 21 | 83 | | OzonMessageType.TYPE_STATE_CHANGED => |
| | 1 | 84 | | Deserialize<OzonStateChangedNotification>(json), |
| | 21 | 85 | | |
| | 21 | 86 | | OzonMessageType.TYPE_CUTOFF_DATE_CHANGED => |
| | 2 | 87 | | Deserialize<OzonCutoffDateChangedNotification>(json), |
| | 21 | 88 | | |
| | 21 | 89 | | OzonMessageType.TYPE_DELIVERY_DATE_CHANGED => |
| | 2 | 90 | | Deserialize<OzonDeliveryDateChangedNotification>(json), |
| | 21 | 91 | | |
| | 21 | 92 | | // Три типа имеют идентичный payload — используем одну модель |
| | 21 | 93 | | OzonMessageType.TYPE_CREATE_OR_UPDATE_ITEM or |
| | 21 | 94 | | #pragma warning disable CS0618 // устаревшие константы обрабатываем сознательно |
| | 21 | 95 | | OzonMessageType.TYPE_CREATE_ITEM or |
| | 21 | 96 | | OzonMessageType.TYPE_UPDATE_ITEM => |
| | 21 | 97 | | #pragma warning restore CS0618 |
| | 3 | 98 | | Deserialize<OzonItemNotification>(json), |
| | 21 | 99 | | |
| | 21 | 100 | | OzonMessageType.TYPE_STOCKS_CHANGED => |
| | 1 | 101 | | Deserialize<OzonStocksChangedNotification>(json), |
| | 21 | 102 | | |
| | 21 | 103 | | OzonMessageType.TYPE_NEW_MESSAGE => |
| | 1 | 104 | | Deserialize<OzonNewMessageNotification>(json), |
| | 21 | 105 | | |
| | 21 | 106 | | OzonMessageType.TYPE_UPDATE_MESSAGE => |
| | 1 | 107 | | Deserialize<OzonUpdateMessageNotification>(json), |
| | 21 | 108 | | |
| | 21 | 109 | | OzonMessageType.TYPE_MESSAGE_READ => |
| | 1 | 110 | | Deserialize<OzonMessageReadNotification>(json), |
| | 21 | 111 | | |
| | 21 | 112 | | OzonMessageType.TYPE_CHAT_CLOSED => |
| | 1 | 113 | | Deserialize<OzonChatClosedNotification>(json), |
| | 21 | 114 | | |
| | 2 | 115 | | _ => new OzonUnknownNotification { MessageType = messageType.ToString() } |
| | 21 | 116 | | }; |
| | | 117 | | } |
| | 1 | 118 | | catch (JsonException ex) |
| | | 119 | | { |
| | 1 | 120 | | _logger.LogError(ex, |
| | 1 | 121 | | "Ошибка десериализации уведомления типа {MessageType}. Payload: {Json}", |
| | 1 | 122 | | messageType, json); |
| | | 123 | | |
| | | 124 | | // Возвращаем fallback-объект, не бросаем исключение — |
| | | 125 | | // сервис обработки решит, как поступить с неизвестным типом |
| | 1 | 126 | | return new OzonUnknownNotification { MessageType = messageType.ToString() }; |
| | | 127 | | } |
| | 21 | 128 | | } |
| | | 129 | | |
| | | 130 | | private T Deserialize<T>(string json) where T : IOzonWebhookMessage |
| | | 131 | | { |
| | 19 | 132 | | var result = JsonSerializer.Deserialize<T>(json, DeserializeOptions); |
| | 18 | 133 | | if (result is null) |
| | 0 | 134 | | throw new JsonException($"Десериализация типа {typeof(T).Name} вернула null"); |
| | | 135 | | |
| | 18 | 136 | | return result; |
| | | 137 | | } |
| | | 138 | | } |
| | | 139 | | } |