WIP

API/ROLAC.API.Tests/Services/AuthServiceTests.cs

@@ -165,6 +165,48 @@ public class AuthServiceTests
         um.Verify(m => m.UpdateAsync(It.Is<AppUser>(u => u.LastLoginAt != null)), Times.Once);
     }
 
+    [Fact]
+    public async Task Login_LinkedMember_ReturnsMemberInfo()
+    {
+        var db = BuildDb();
+        db.Members.Add(new Member
+        {
+            Id           = 7,
+            NickName     = "Johnny",
+            FirstName_en = "John",
+            LastName_en  = "Chen",
+            LastName_zh  = "陳",
+            CreatedBy    = "seed",
+            UpdatedBy    = "seed",
+        });
+        await db.SaveChangesAsync();
+
+        var user = new AppUser { Id = "u1", Email = "a@b.com", UserName = "a@b.com", IsActive = true, MemberId = 7 };
+        var um   = BuildUserManager(findResult: user);
+        var ts   = BuildTokenService();
+        var sut  = BuildSut(um, ts, db);
+
+        var (response, _) = await sut.LoginAsync(new LoginRequest { Email = "a@b.com", Password = "P@ssw0rd!" });
+
+        Assert.NotNull(response.User.MemberInfo);
+        Assert.Equal(7,        response.User.MemberInfo!.Id);
+        Assert.Equal("Johnny", response.User.MemberInfo.NickName);
+        Assert.Equal("Chen",   response.User.MemberInfo.LastName_en);
+    }
+
+    [Fact]
+    public async Task Login_AdminOnlyAccount_ReturnsNullMemberInfo()
+    {
+        var user = new AppUser { Id = "u1", Email = "a@b.com", UserName = "a@b.com", IsActive = true, MemberId = null };
+        var um   = BuildUserManager(findResult: user);
+        var ts   = BuildTokenService();
+        var sut  = BuildSut(um, ts, BuildDb());
+
+        var (response, _) = await sut.LoginAsync(new LoginRequest { Email = "a@b.com", Password = "P@ssw0rd!" });
+
+        Assert.Null(response.User.MemberInfo);
+    }
+
     // -----------------------------------------------------------------------
     // Refresh tests
     // -----------------------------------------------------------------------

API/ROLAC.API/DTOs/Auth/LoginResponse.cs

@@ -25,4 +25,22 @@ public class UserInfo
     /// Lets the SPA hide nav/buttons. Authoritative enforcement is server-side.
     /// </summary>
     public Dictionary<string, ModuleActions> Permissions { get; set; } = [];
+
+    /// <summary>
+    /// The church member linked to this login account, or null for admin-only
+    /// accounts (no MemberId) and accounts whose member record was deleted.
+    /// Lets the SPA greet the user by their real name.
+    /// </summary>
+    public MemberInfo? MemberInfo { get; set; }
+}
+
+/// <summary>Minimal member identity for greeting the signed-in user.</summary>
+public class MemberInfo
+{
+    public int     Id           { get; set; }
+    public string? NickName     { get; set; }
+    public string  FirstName_en { get; set; } = "";
+    public string  LastName_en  { get; set; } = "";
+    public string? FirstName_zh { get; set; }
+    public string? LastName_zh  { get; set; }
 }

API/ROLAC.API/Services/AuthService.cs

@@ -181,5 +181,29 @@ public class AuthService : IAuthService
             Roles              = roles,
             LanguagePreference = user.LanguagePreference,
             Permissions        = await _permissions.GetEffectivePermissionsAsync(roles),
+            MemberInfo         = await BuildMemberInfoAsync(user),
         };
+
+    /// <summary>
+    /// Loads the linked member's display fields, or null when the account has no
+    /// MemberId or its member record was soft-deleted (excluded by query filter).
+    /// </summary>
+    private async Task<MemberInfo?> BuildMemberInfoAsync(AppUser user)
+    {
+        if (user.MemberId is not int memberId)
+            return null;
+
+        return await _db.Members
+            .Where(member => member.Id == memberId)
+            .Select(member => new MemberInfo
+            {
+                Id           = member.Id,
+                NickName     = member.NickName,
+                FirstName_en = member.FirstName_en,
+                LastName_en  = member.LastName_en,
+                FirstName_zh = member.FirstName_zh,
+                LastName_zh  = member.LastName_zh,
+            })
+            .FirstOrDefaultAsync();
+    }
 }