| | | 1 | | using Microsoft.EntityFrameworkCore; |
| | | 2 | | using Microsoft.Extensions.Logging; |
| | | 3 | | using OzonDomains.Models; |
| | | 4 | | using OzonDomains.Models.SupplierStatuses; |
| | | 5 | | using OzonRepositories.Context; |
| | | 6 | | |
| | | 7 | | namespace Services.SupplierStatusServices; |
| | | 8 | | |
| | | 9 | | public interface ISupplierStatusResolver |
| | | 10 | | { |
| | | 11 | | /// <summary> |
| | | 12 | | /// Находит статус в справочнике по коду поставщика (или по имени, если кода нет) |
| | | 13 | | /// и создаёт его при первой встрече. Новый статус создаётся без цвета и без IsFinal — |
| | | 14 | | /// их задаёт админ на странице справочника. |
| | | 15 | | /// </summary> |
| | | 16 | | Task<SupplierStatus> ResolveAsync( |
| | | 17 | | string providerKey, string statusKind, string? externalCode, string name, CancellationToken ct = default); |
| | | 18 | | |
| | | 19 | | /// <summary>Сбрасывает кэш справочника — после ручного редактирования статусов.</summary> |
| | | 20 | | void InvalidateCache(); |
| | | 21 | | } |
| | | 22 | | |
| | | 23 | | public sealed class SupplierStatusResolver : ISupplierStatusResolver |
| | | 24 | | { |
| | | 25 | | private readonly ApplicationDbContext _db; |
| | | 26 | | private readonly ILogger<SupplierStatusResolver> _logger; |
| | | 27 | | |
| | | 28 | | /// <summary> |
| | | 29 | | /// Кэш живёт в пределах одного scope (сервис scoped вместе с DbContext). Он нужен не как |
| | | 30 | | /// долговременный кэш, а чтобы один прогон джобы с сотнями строк не бил в БД на каждую. |
| | | 31 | | /// </summary> |
| | 39 | 32 | | private readonly Dictionary<string, SupplierStatus> _cache = new(StringComparer.Ordinal); |
| | | 33 | | |
| | 39 | 34 | | public SupplierStatusResolver(ApplicationDbContext db, ILogger<SupplierStatusResolver> logger) |
| | | 35 | | { |
| | 39 | 36 | | _db = db; |
| | 39 | 37 | | _logger = logger; |
| | 39 | 38 | | } |
| | | 39 | | |
| | | 40 | | public async Task<SupplierStatus> ResolveAsync( |
| | | 41 | | string providerKey, string statusKind, string? externalCode, string name, CancellationToken ct = default) |
| | | 42 | | { |
| | 46 | 43 | | var displayName = string.IsNullOrWhiteSpace(name) |
| | 46 | 44 | | ? (string.IsNullOrWhiteSpace(externalCode) ? "Без статуса" : $"Код {externalCode}") |
| | 46 | 45 | | : name.Trim(); |
| | 46 | 46 | | if (displayName.Length > 200) displayName = displayName[..200]; |
| | | 47 | | |
| | 46 | 48 | | var cacheKey = BuildCacheKey(providerKey, statusKind, externalCode, displayName); |
| | 46 | 49 | | if (_cache.TryGetValue(cacheKey, out var cached)) |
| | 7 | 50 | | return cached; |
| | | 51 | | |
| | 39 | 52 | | var existing = await FindAsync(providerKey, statusKind, externalCode, displayName, ct); |
| | 39 | 53 | | if (existing is not null) |
| | | 54 | | { |
| | 1 | 55 | | _cache[cacheKey] = existing; |
| | 1 | 56 | | return existing; |
| | | 57 | | } |
| | | 58 | | |
| | 38 | 59 | | var created = new SupplierStatus |
| | 38 | 60 | | { |
| | 38 | 61 | | ProviderKey = providerKey, |
| | 38 | 62 | | StatusKind = statusKind, |
| | 38 | 63 | | ExternalCode = string.IsNullOrWhiteSpace(externalCode) ? null : externalCode.Trim(), |
| | 38 | 64 | | Name = displayName, |
| | 38 | 65 | | SupplierId = await ResolveSupplierIdAsync(providerKey, ct), |
| | 38 | 66 | | IsFinal = false, |
| | 38 | 67 | | CreatedAt = DateTime.UtcNow |
| | 38 | 68 | | }; |
| | | 69 | | |
| | 38 | 70 | | _db.SupplierStatuses.Add(created); |
| | | 71 | | try |
| | | 72 | | { |
| | 38 | 73 | | await _db.SaveChangesAsync(ct); |
| | 38 | 74 | | _logger.LogInformation( |
| | 38 | 75 | | "Создан статус поставщика '{Name}' ({ProviderKey}/{Kind}, код '{Code}') — задайте цвет в справочнике", |
| | 38 | 76 | | created.Name, providerKey, statusKind, created.ExternalCode); |
| | 38 | 77 | | } |
| | 0 | 78 | | catch (DbUpdateException) |
| | | 79 | | { |
| | | 80 | | // Гонка с параллельным прогоном: уникальный индекс (ProviderKey, StatusKind, Name) |
| | | 81 | | // отверг вставку — статус уже создан кем-то другим, перечитываем его. |
| | 0 | 82 | | _db.Entry(created).State = EntityState.Detached; |
| | 0 | 83 | | existing = await FindAsync(providerKey, statusKind, externalCode, displayName, ct); |
| | 0 | 84 | | if (existing is null) throw; |
| | 0 | 85 | | _cache[cacheKey] = existing; |
| | 0 | 86 | | return existing; |
| | | 87 | | } |
| | | 88 | | |
| | 38 | 89 | | _cache[cacheKey] = created; |
| | 38 | 90 | | return created; |
| | 46 | 91 | | } |
| | | 92 | | |
| | 0 | 93 | | public void InvalidateCache() => _cache.Clear(); |
| | | 94 | | |
| | | 95 | | private async Task<SupplierStatus?> FindAsync( |
| | | 96 | | string providerKey, string statusKind, string? externalCode, string displayName, CancellationToken ct) |
| | | 97 | | { |
| | | 98 | | // Код поставщика надёжнее названия: у АВД и ML-Auto название статуса может измениться, |
| | | 99 | | // а код остаётся. Поэтому сначала ищем по коду и только затем по имени. |
| | 39 | 100 | | if (!string.IsNullOrWhiteSpace(externalCode)) |
| | | 101 | | { |
| | 39 | 102 | | var byCode = await _db.SupplierStatuses.FirstOrDefaultAsync( |
| | 39 | 103 | | x => x.ProviderKey == providerKey && x.StatusKind == statusKind && x.ExternalCode == externalCode, ct); |
| | 40 | 104 | | if (byCode is not null) return byCode; |
| | | 105 | | } |
| | | 106 | | |
| | 38 | 107 | | return await _db.SupplierStatuses.FirstOrDefaultAsync( |
| | 38 | 108 | | x => x.ProviderKey == providerKey && x.StatusKind == statusKind && x.Name == displayName, ct); |
| | 39 | 109 | | } |
| | | 110 | | |
| | | 111 | | private async Task<int?> ResolveSupplierIdAsync(string providerKey, CancellationToken ct) => |
| | 38 | 112 | | await _db.ApiSupplierSettings |
| | 38 | 113 | | .Where(x => x.ProviderKey == providerKey) |
| | 38 | 114 | | .Select(x => x.SupplierId) |
| | 38 | 115 | | .FirstOrDefaultAsync(ct); |
| | | 116 | | |
| | | 117 | | private static string BuildCacheKey(string providerKey, string statusKind, string? externalCode, string name) => |
| | 46 | 118 | | string.IsNullOrWhiteSpace(externalCode) |
| | 46 | 119 | | ? $"{providerKey}|{statusKind}|n:{name}" |
| | 46 | 120 | | : $"{providerKey}|{statusKind}|c:{externalCode}"; |
| | | 121 | | } |