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AMREZ.EOP.Application/UseCases/Tenancy/AddBaseDomainUseCase.cs

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+using System.Data;
+using AMREZ.EOP.Abstractions.Applications.Tenancy;
+using AMREZ.EOP.Abstractions.Applications.UseCases.Tenancy;
+using AMREZ.EOP.Abstractions.Infrastructures.Common;
+using AMREZ.EOP.Abstractions.Infrastructures.Repositories;
+using AMREZ.EOP.Contracts.DTOs.Tenancy.AddBaseDomain;
+using Microsoft.AspNetCore.Http;
+
+namespace AMREZ.EOP.Application.UseCases.Tenancy;
+
+public sealed class AddBaseDomainUseCase : IAddBaseDomainUseCase
+{
+    private readonly ITenantResolver _resolver;
+    private readonly IHttpContextAccessor _http;
+    private readonly IUnitOfWork _uow;
+    private readonly ITenantRepository _repo;
+
+    public AddBaseDomainUseCase(ITenantResolver resolver, IHttpContextAccessor http, IUnitOfWork uow, ITenantRepository repo)
+    { _resolver = resolver; _http = http; _uow = uow; _repo = repo; }
+
+    public async Task<AddBaseDomainResponse?> ExecuteAsync(AddBaseDomainRequest request, CancellationToken ct = default)
+    {
+        var http = _http.HttpContext ?? throw new InvalidOperationException("No HttpContext");
+
+        var ctx = _resolver.Resolve(http, hint: null);
+        if (ctx is null) return null;
+
+        var baseDomain = (request.BaseDomain ?? string.Empty).Trim().TrimEnd('.').ToLowerInvariant();
+        if (string.IsNullOrWhiteSpace(baseDomain)) return null;
+
+        await _uow.BeginAsync(ctx, IsolationLevel.ReadCommitted, ct);
+        try
+        {
+            var ok = await _repo.AddBaseDomainAsync(baseDomain, ct); // repo ดึง target tenant จาก X-Tenant/context
+            if (!ok) { await _uow.RollbackAsync(ct); return null; }
+
+            await _uow.CommitAsync(ct);
+            return new AddBaseDomainResponse(baseDomain);
+        }
+        catch
+        {
+            await _uow.RollbackAsync(ct);
+            throw;
+        }
+    }
+}