First Commit

Helpers/ADS.Helpers.Middleware/Tenant/TenantMiddleware.cs

@@ -0,0 +1,57 @@
+using System.Threading.Tasks;
+using ADS.Helpers.Base.Abstractions;
+using ADS.Helpers.MultiTenant.Abstractions;
+using ADS.Helpers.MultiTenant.Context;
+using Microsoft.AspNetCore.Http;
+
+namespace ADS.Helpers.Middleware.Tenant;
+
+public sealed class TenantMiddleware
+{
+    private readonly RequestDelegate _next;
+
+    public TenantMiddleware(RequestDelegate next)
+    {
+        _next = next;
+    }
+
+    // Scoped dependencies se resuelven aquí (por request)
+    public async Task InvokeAsync(
+        HttpContext context,
+        ITenantResolver tenantResolver,
+        ITenantStore tenantStore,
+        ITenantContextAccessor tenantContextAccessor,
+        IAppLogger log)
+    {
+        var tenantKey = tenantResolver.Resolve(context);
+
+        if (string.IsNullOrWhiteSpace(tenantKey))
+        {
+            log.Warn("ADS.MultiTenant", "TENANT_NOT_RESOLVED", "Tenant key could not be resolved.");
+            context.Response.StatusCode = StatusCodes.Status400BadRequest;
+            await context.Response.WriteAsync("Tenant not resolved.");
+            return;
+        }
+
+        var tenant = await tenantStore.GetAsync(tenantKey);
+
+        if (tenant is null)
+        {
+            log.Warn("ADS.MultiTenant", "TENANT_NOT_FOUND", $"Tenant '{tenantKey}' not found.");
+            context.Response.StatusCode = StatusCodes.Status404NotFound;
+            await context.Response.WriteAsync("Tenant not found.");
+            return;
+        }
+
+        tenantContextAccessor.SetCurrent(tenant);
+
+        try
+        {
+            await _next(context);
+        }
+        finally
+        {
+            tenantContextAccessor.SetCurrent(null);
+        }
+    }
+}