feat(m9/T32c): schema-library CRUD commands + handlers + Central UI page + read-accessor

2026-06-18 12:32:31 -04:00
parent 71d5722692
commit 71a2bca4df
13 changed files with 1363 additions and 0 deletions
@@ -0,0 +1,58 @@
+using Microsoft.Extensions.DependencyInjection;
+using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Repositories;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Services;
+
+/// <summary>
+/// Default <see cref="ISchemaLibraryQueryService"/> implementation (M9-T32c). Reads the
+/// named JSON-Schema library directly from <see cref="ISharedSchemaRepository"/> over a
+/// fresh DI scope per query — mirroring <c>AuditLogQueryService</c> /
+/// <c>KpiHistoryQueryService</c> so a value form's auto-load never races other reads on
+/// the shared circuit-scoped DbContext. Read-only; no mutation goes through here.
+/// </summary>
+public sealed class SchemaLibraryQueryService : ISchemaLibraryQueryService
+{
+    private readonly IServiceScopeFactory _scopeFactory;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="SchemaLibraryQueryService"/>.
+    /// </summary>
+    /// <param name="scopeFactory">Factory used to open a fresh DI scope (and DbContext) per query.</param>
+    public SchemaLibraryQueryService(IServiceScopeFactory scopeFactory)
+    {
+        _scopeFactory = scopeFactory ?? throw new ArgumentNullException(nameof(scopeFactory));
+    }
+
+    /// <inheritdoc/>
+    public async Task<IReadOnlyDictionary<string, string>> GetSchemaMapAsync(
+        CancellationToken cancellationToken = default)
+    {
+        await using var scope = _scopeFactory.CreateAsyncScope();
+        var repo = scope.ServiceProvider.GetRequiredService<ISharedSchemaRepository>();
+        var all = await repo.ListAsync(cancellationToken);
+
+        // Ordinal-keyed to match the lib:Name resolver's exact-name lookup. Last-wins on
+        // the (DB-unique) name guards against a transient duplicate read.
+        var map = new Dictionary<string, string>(StringComparer.Ordinal);
+        foreach (var schema in all)
+        {
+            map[schema.Name] = schema.SchemaJson;
+        }
+
+        return map;
+    }
+
+    /// <inheritdoc/>
+    public async Task<string?> ResolveAsync(string name, CancellationToken cancellationToken = default)
+    {
+        if (string.IsNullOrEmpty(name))
+        {
+            return null;
+        }
+
+        await using var scope = _scopeFactory.CreateAsyncScope();
+        var repo = scope.ServiceProvider.GetRequiredService<ISharedSchemaRepository>();
+        var schema = await repo.GetByNameAsync(name, cancellationToken);
+        return schema?.SchemaJson;
+    }
+}