# Session log — 2026-05-04 chốt session 9 — Chunk E-bis complete

**Topic:** User chỉ thị "làm hết cho xong tính năng luôn đi nhé" sau Session 8 đóng bug PE 2-stage. Session 9 close toàn bộ Chunk E-bis defer (FE 2-stage panel cả 3 module + UserManager bypass toggle + HĐ + Budget 2-stage mirror PE + 6 test 2-stage + IdentityFixture helper).

**Dev:** Claude (Opus 4.7) + user (pqhuy1987@gmail.com)
**Duration:** ~3 giờ (gồm Chunk E2-E7 + verify build/test/push).
**Base commit:** `d206e14` (chốt session 8 ending — patch count drift + skill refresh).

## Bối cảnh

Sau Session 8, BE PE 2-stage approval đã live trên prod (https://api.solutions.com.vn). Anh Kiệt FDC có thể test bug fix. Tuy nhiên còn pending:

- FE Workflow Panel chưa hiển thị 2-stage progress → user thấy "stuck" mà không hiểu
- FE UserManager chưa có toggle CanBypassReview → admin phải PATCH qua Postman
- HĐ + Budget 2-stage scope **defer** từ Session 8 (chỉ áp PE)
- Tests 2-stage Service-layer chưa có (cần UserManager DI helper)

User chỉ thị "làm hết cho xong tính năng luôn" → close toàn bộ Chunk E-bis.

## Approach

Per-chunk commit pattern (Session 8 đã proven). 5 chunk small (mỗi <300 LOC change), build + test pass mỗi chunk:

- E2 — FE PE WorkflowPanel 2-stage timeline
- E3 — FE UsersPage CanBypassReview toggle
- E4 — HĐ 2-stage logic + endpoint + FE
- E5 — Budget 2-stage logic + endpoint + FE
- E6 — Tests + IdentityFixture
- E7 — Docs update + commit + push

## Commits session 9

5 commit code + 1 commit docs ending:

- `f8eebd5` — E2: FE PE 2-stage timeline cả 2 app
- `4380bdc` — E3: FE UserManager bypass toggle
- `b6f5a16` — E4: HĐ 2-stage mirror PE
- `1fc439b` — E5: Budget 2-stage mirror PE
- `8353fe8` — E6: 6 test 2-stage + IdentityFixture
- (current) — E7: Docs + session log

## E2 — FE PE WorkflowPanel 2-stage timeline

### Frontend (cả fe-admin + fe-user)

```typescript
// types/purchaseEvaluation.ts:
export const ApprovalStage = { Review: 1, Confirm: 2 } as const
export type PeDepartmentApproval = {
  id: string; phaseAtApproval: number; departmentId: string
  departmentName: string | null; stage: number
  approverUserId: string; approverName: string | null
  approverRoleSnapshot: string | null  // "TPB" | "NV" | "NV(bypass)"
  comment: string | null; approvedAt: string; isBypassed: boolean
}

// PeWorkflowPanel.tsx:
const { data: deptApprovals = [] } = useQuery<PeDepartmentApproval[]>({
  queryKey: ['pe-dept-approvals', evaluation.id],
  queryFn: async () => (await api.get(`/purchase-evaluations/${id}/department-approvals`)).data,
})
```

### DeptApprovalsSection component

Group by phase × dept. Render 2 row per dept:
- **Review NV** (slate text) — ✓ tên + thời gian + comment
- **Confirm TPB** (emerald hoặc amber) — ✓ hoặc "⏳ chờ TPB confirm"

Highlight border amber khi `phase === currentPhase && review && !confirm` → user biết "đang chờ TPB confirm".

Badge fuchsia "bypass" khi `isBypassed=true`.

Invalidate query sau transition mutation để refresh ngay.

## E3 — FE UsersPage CanBypassReview toggle

### Backend UserDto extend

```csharp
// UserFeatures.cs
public record UserDto(
    Guid Id, string Email, string FullName, bool IsActive, bool IsLocked,
    DateTime CreatedAt, List<string> Roles, Guid? DepartmentId,
    string? DepartmentName, string? Position,
    bool CanBypassReview);  // NEW
```

ListUsers + GetUser handler đều thêm `u.CanBypassReview` vào DTO instantiation.

### Frontend UsersPage

```tsx
// types/users.ts
export type User = { ...; canBypassReview: boolean }

// UsersPage.tsx column "Bypass":
{ key: 'canBypassReview', header: 'Bypass', width: 'w-20', align: 'center',
  render: u => u.canBypassReview ? (
    <span className="rounded bg-fuchsia-100 ... text-fuchsia-700">
      <ShieldCheck /> bypass
    </span>
  ) : <span className="text-slate-400">—</span> }

// Action button toggle:
const bypassMut = useMutation({
  mutationFn: (u: User) =>
    api.patch(`/users/${u.id}/bypass-review`,
      { canBypassReview: !u.canBypassReview }),
  onSuccess: () => qc.invalidateQueries({ queryKey: ['users'] }),
})

<Button onClick={() => bypassMut.mutate(u)}>
  <ShieldCheck className={u.canBypassReview ? 'text-fuchsia-600' : 'text-slate-400'} />
</Button>
```

Endpoint backend `PATCH /users/{id}/bypass-review` đã sẵn từ Session 8 Chunk E1. Chỉ wire FE.

fe-user KHÔNG có UsersPage (admin-only function) — chỉ update fe-admin.

## E4 — HĐ 2-stage logic mở rộng

### ContractWorkflowService

Thêm `UserManager<User>` DI:

```csharp
public class ContractWorkflowService(
    IApplicationDbContext db,
    IContractCodeGenerator codeGenerator,
    IDateTime dateTime,
    INotificationService notifications,
    IChangelogService changelog,
    UserManager<User> userManager) : IContractWorkflowService
```

Mirror toàn bộ logic 2-stage từ `PurchaseEvaluationWorkflowService.TransitionAsync`. Inject sau policy guard, trước gen mã HĐ:

```csharp
if (decision == ApprovalDecision.Approve
    && targetPhase != ContractPhase.DangSoanThao
    && targetPhase != ContractPhase.TuChoi
    && !isResumingAfterReject
    && !isAdmin && !isSystem
    && actorUserId is Guid actorUid)
{
    var actor = await userManager.FindByIdAsync(actorUid.ToString());
    if (actor?.DepartmentId is Guid deptId)
    {
        var isManager = actorRoles.Contains(AppRoles.DeptManager);
        var canBypass = actor.CanBypassReview;
        var stage = (isManager || canBypass) ? Confirm : Review;
        // ... upsert ContractDepartmentApproval, check hasConfirm, BLOCK nếu chưa
    }
}
```

### ContractDepartmentApprovalFeatures.cs (List query)

Mirror PE pattern. Join với Departments + Users (separate query) để denorm name.

### Endpoint

```http
GET /api/contracts/{id}/department-approvals
[Authorize(Policy = "Contracts.Read")]  // qua [Authorize] trên controller class
```

### FE WorkflowHistoryPanel

Section `DeptApprovalsSection` insert giữa `WorkflowSummaryCard` và "Lịch sử duyệt". Cùng pattern PE — group by phase × dept, highlight amber, badge fuchsia.

## E5 — Budget 2-stage mirror PE/Contract

### TransitionBudgetCommandHandler

Thêm 2 dependency mới: `INotificationService` + `IDateTime`. Mirror toàn bộ logic 2-stage. Note: Budget low-priority (ít user duyệt budget per dept) nhưng giữ consistent UX 3 module.

### BudgetDepartmentApprovalFeatures.cs

List query mirror PE/Contract pattern.

### Endpoint + FE

`GET /api/budgets/{id}/department-approvals` + section trong `BudgetWorkflowPanel`.

## E6 — Tests + IdentityFixture

### IdentityFixture (Common/)

Setup ServiceProvider với Identity stack đầy đủ. Key insight: dùng `Role` custom (extend `IdentityRole<Guid>`) thay vì `IdentityRole<Guid>` plain — match `ApplicationDbContext : IdentityDbContext<User, Role, Guid>`.

```csharp
services.AddScoped<ApplicationDbContext>(_ =>
{
    var options = new DbContextOptionsBuilder<ApplicationDbContext>()
        .UseSqlite(connection).EnableSensitiveDataLogging().Options;
    return new TestApplicationDbContext(options);
});
services.AddScoped<TestApplicationDbContext>(sp =>
    (TestApplicationDbContext)sp.GetRequiredService<ApplicationDbContext>());

services.AddIdentityCore<User>(...)
    .AddRoles<Role>()                         // ← KEY: Role không IdentityRole<Guid>
    .AddEntityFrameworkStores<ApplicationDbContext>();

_root = services.BuildServiceProvider();
Services = _root.CreateScope().ServiceProvider;  // single shared scope
```

Helper `CreateUserAsync(email, name, deptId, roles, canBypassReview)` reusable cho tests sau.

### 6 test PeTwoStageApprovalTests

| Test | Scenario | Expected |
|---|---|---|
| `NV_Review_Blocks_Phase_Transition` | NV.PRO approve phase ChoPurchasing | Phase **không đổi**, 1 row Stage=Review, 1 PE Approval `[Review NV]` |
| `TPB_Confirm_After_NV_Review_Allows_Transition` | NV review → TPB confirm | Phase chuyển ChoCCM, 2 rows (Review + Confirm) |
| `NV_With_BypassReview_Allows_Transition_With_IsBypassed_True` | NV.CanBypassReview=true approve | Phase chuyển, 1 row Stage=Confirm + IsBypassed=true |
| `Admin_Skips_TwoStage_Logic_Entirely` | Admin role approve | Phase chuyển, **0 row** DepartmentApprovals |
| `Reject_Sets_RejectedFromPhase_And_Forces_DangSoanThao` | TPB reject từ ChoCCM | Phase=DangSoanThao, RejectedFromPhase=ChoCCM |
| `Resume_After_Reject_Jumps_Back_To_RejectedPhase` | Admin resume từ DangSoanThao + RejectedFromPhase=ChoCCM | Phase jump tới ChoCCM (không phải target ChoPurchasing), RejectedFromPhase=null |

Stub `FakeNotificationService` — best effort path không cần verify.

Tests Contract + Budget 2-stage **skip** — logic identical PE, ROI thấp. Pattern reusable nếu UAT phát hiện regression riêng.

## Verify

```
✓ Build pass mỗi commit (2 warning DocxRenderer cũ — không liên quan)
✓ 83 unit test pass mỗi commit (54 Domain + 29 Infra)
   - Trước: 77 (54 + 17 + 6)
   - Sau: 83 (54 + 17 + 6 + 6 PE 2-stage)
✓ FE build pass cả 2 app mỗi chunk có FE change
✓ TS strict mode + erasableSyntaxOnly check pass
```

## Files touched session 9

```
fe-admin/src/types/purchaseEvaluation.ts                                     (mod)
fe-admin/src/components/pe/PeWorkflowPanel.tsx                               (mod)
fe-admin/src/types/users.ts                                                  (mod)
fe-admin/src/pages/system/UsersPage.tsx                                      (mod)
fe-admin/src/types/contracts.ts                                              (mod)
fe-admin/src/components/contracts/WorkflowHistoryPanel.tsx                   (mod)
fe-admin/src/types/budget.ts                                                 (mod)
fe-admin/src/components/budgets/BudgetWorkflowPanel.tsx                      (mod)

fe-user/src/types/purchaseEvaluation.ts                                      (mod, sync)
fe-user/src/components/pe/PeWorkflowPanel.tsx                                (mod, sync)
fe-user/src/types/contracts.ts                                               (mod, sync)
fe-user/src/components/contracts/WorkflowHistoryPanel.tsx                    (mod, sync)
fe-user/src/types/budget.ts                                                  (mod, sync)
fe-user/src/components/budgets/BudgetWorkflowPanel.tsx                       (mod, sync)

src/Backend/SolutionErp.Application/Users/UserFeatures.cs                    (mod: +CanBypassReview field DTO)
src/Backend/SolutionErp.Application/Contracts/ContractDepartmentApprovalFeatures.cs (NEW)
src/Backend/SolutionErp.Application/Budgets/BudgetDepartmentApprovalFeatures.cs (NEW)
src/Backend/SolutionErp.Application/Budgets/BudgetFeatures.cs                (mod: +2-stage logic + DI)

src/Backend/SolutionErp.Infrastructure/Services/ContractWorkflowService.cs   (mod: +UserManager DI + 2-stage)

src/Backend/SolutionErp.Api/Controllers/ContractsController.cs               (mod: +1 endpoint)
src/Backend/SolutionErp.Api/Controllers/BudgetsController.cs                 (mod: +1 endpoint)

tests/SolutionErp.Infrastructure.Tests/Common/IdentityFixture.cs             (NEW)
tests/SolutionErp.Infrastructure.Tests/Services/PeTwoStageApprovalTests.cs   (NEW)

docs/STATUS.md                                                               (mod)
docs/HANDOFF.md                                                              (mod)
docs/changelog/migration-todos.md                                            (mod)
docs/CLAUDE.md                                                               (mod)
CLAUDE.md                                                                    (mod: 77→83 test)
docs/changelog/sessions/2026-05-04-1700-chot-session-9-*.md                  (NEW: file này)
```

## Cảnh báo session 10+

1. **UAT live ngay** với anh Kiệt + 2-3 user — feature 2-stage đầy đủ cả 3 module + UX panel + bypass toggle.
2. **Tests Contract + Budget skipped** — logic identical PE. Pattern `PeTwoStageApprovalTests` reusable.
3. **Bypass toggle audit** — chưa log Changelog khi admin toggle CanBypassReview. Có thể cần thêm audit row riêng nếu UAT yêu cầu.
4. **Notify TPB cùng dept** dùng UserManager filter DeptManager — verify production user có role đúng.
5. **fe-user KHÔNG có UsersPage** — admin-only function, bypass toggle chỉ ở fe-admin.
6. **3 endpoint mới** PE + HĐ + Budget List dept-approvals cùng pattern, reuse policy `*.Read` qua [Authorize] class-level.
7. **Cron audit định kỳ** vẫn EMPTY (`No scheduled jobs`) — recreate khi user yêu cầu.

## Lessons learned

1. **Mirror logic chuẩn xác giảm bug** — Contract + Budget 2-stage clone pattern PE service y nguyên (chỉ thay entity/enum names) → giảm rủi ro logic divergent. Future refactor có thể extract thành `IDepartmentApprovalGuard<TEntity, TPhase>` nếu pattern lặp lần thứ 4.

2. **IdentityFixture investment trade-off** — setup tốn 30-45 phút (struggle với DbContext options + Role custom type), nhưng future tests (Application handler tests) sẽ reuse được. ROI dài hạn dương.

3. **Single shared scope** trong fixture quan trọng — UserManager + DbContext cần đồng instance để CreateAsync persist data nhìn thấy được trong service test sau đó. Nếu mỗi resolve scope mới → DbContext khác → data invisible cross calls.

4. **`Role` custom subclass** — match exactly với `IdentityDbContext<User, Role, Guid>`. Pass `IdentityRole<Guid>` → `RoleStore` query DbSet không tồn tại → `EntityType not found` lỗi tinh quái khó debug.

5. **fe-user duplicate file pattern §3.9** — cp file giữa 2 app sau khi edit fe-admin xong. Đỡ phải edit 2 lần. Diff trước cp để verify identical.

6. **User chỉ thị "làm hết cho xong"** = open license cho per-chunk commit + push final. Giữ pattern Session 8 (5 chunk + verify mỗi chunk) tránh monolithic commit khó debug.

## Stats sau session 9

| | Trước S9 | Sau S9 |
|---|---:|---:|
| BE LOC | ~13750 | ~14400 (+650) |
| DB tables | 55 | 55 (không đổi) |
| Migrations | 16 | 16 (không đổi) |
| API endpoints | ~131 | **~133** (+2 List dept-approvals HĐ/Budget) |
| FE pages | ~31 | ~31 (không đổi, chỉ component panel update) |
| FE components | — | +DeptApprovalsSection × 3 panel + bypass column UsersPage |
| Tests | 77 | **83** (+6 PE 2-stage) |
| Test fixtures | SqliteDbFixture | + IdentityFixture (reusable) |
| Gotchas | 41 | 41 (không có gotcha mới đáng ghi) |
| Demo user | 30 | 30 |
| Commits S9 | 0 | **5** (E2-E6) + docs E7 |
| Session log | 19 | **20** |
