Fix checkpoint panel visibility - CheckpointList not rendering items

[frankbria]

Problem

Checkpoint panel exists in Dashboard but CheckpointList component is not rendering checkpoint items, causing 8 E2E tests to fail.

Current Behavior

• ✅ CheckpointList component exists with correct data-testid attributes
• ✅ Panel is rendered in Dashboard (web-ui/src/components/Dashboard.tsx:511-516)
• ❌ No checkpoint items appearing in the list
• ❌ Tests timing out waiting for checkpoint-item-* elements

Failed Tests (8 total)

All in tests/e2e/test_checkpoint_ui.spec.ts:

• should display checkpoint panel (line 39)
• should list existing checkpoints (line 58)
• should open create checkpoint modal (line 94)
• should validate checkpoint name input (line 111)
• should show restore confirmation dialog (line 139)
• should display checkpoint diff preview (line 163)
• should display checkpoint metadata (line 187)
• should allow deleting checkpoint (line 206)

Root Cause Analysis Needed

1. Verify API endpoint returns data

curl http://localhost:8080/api/projects/1/checkpoints

Expected: Array of checkpoint objects
Actual: ?

2. Check test database seeding

sqlite3 tests/e2e/.codeframe/state.db "SELECT * FROM checkpoints;"

Expected: 3 checkpoints (per seed-test-data.py output: "✅ Seeded 3/3 checkpoints")
Actual: ?

3. Verify CheckpointList API call

Check browser console for:

• API request to /api/projects/1/checkpoints
• Response status and data
• Any JavaScript errors

4. Check component rendering logic

File: web-ui/src/components/checkpoints/CheckpointList.tsx:59-73

Does loadCheckpoints() successfully fetch and set state?

Debugging Steps

1. Check if data exists in database:

   sqlite3 tests/e2e/.codeframe/state.db "SELECT id, name, created_at FROM checkpoints WHERE project_id = 1;"

2. Test API endpoint manually:

   curl -v http://localhost:8080/api/projects/1/checkpoints

3. Add console logging to CheckpointList:

   // In loadCheckpoints() at line 59
   console.log('Fetching checkpoints for project:', projectId);
   const data = await listCheckpoints(projectId);
   console.log('Checkpoints received:', data);

4. Check for React errors:

   • Open browser dev tools during test run
   • Look for errors in Console tab
   • Check Network tab for failed API requests

Expected Fix

Once root cause identified, likely one of:

• API issue: Backend endpoint not returning data
• Database issue: Checkpoints not seeded properly
• Frontend issue: CheckpointList not handling data correctly
• Routing issue: API path mismatch

Impact

Blocks 8/12 failed E2E tests - highest impact issue after tab navigation.

Acceptance Criteria

• /api/projects/1/checkpoints returns 3 checkpoints
• CheckpointList renders 3 checkpoint items
• Each item has data-testid="checkpoint-item-{id}"
• Checkpoint name, timestamp, and git SHA visible
• Create checkpoint button visible
• All 8 checkpoint UI tests pass

Related Files

• web-ui/src/components/checkpoints/CheckpointList.tsx:59-73 - Data loading
• web-ui/src/api/checkpoints.ts - API client
• tests/e2e/seed-test-data.py - Database seeding
• codeframe/ui/server.py - Backend API endpoints
• tests/e2e/.codeframe/state.db - Test database

[traycerai]

Plan

Observations

The checkpoint panel exists in the Dashboard and the CheckpointList component is properly implemented with correct data-testid attributes. However, no checkpoint items are rendering because of an API port mismatch. The frontend checkpoint API client (file:web-ui/src/api/checkpoints.ts) defaults to http://localhost:8000, but the backend server runs on port 8080 (configured in file:tests/e2e/playwright.config.ts). This causes all API requests to /api/projects/1/checkpoints to fail silently, leaving the checkpoint list empty. Additionally, the E2E test seeding script (file:tests/e2e/seed-test-data.py) does not include checkpoint seeding code, though the global setup (file:tests/e2e/global-setup.ts) attempts to seed checkpoints via API.

Approach

Fix the API port mismatch by updating the default port in file:web-ui/src/api/checkpoints.ts from 8000 to 8080, ensuring consistency with other API clients (file:web-ui/src/api/reviews.ts, file:web-ui/src/lib/api.ts, file:web-ui/src/lib/websocket.ts) that already use the correct port. This is a targeted fix that addresses the root cause without introducing unnecessary complexity. The checkpoint seeding in file:tests/e2e/global-setup.ts already works correctly via API, so no database seeding changes are needed. This approach follows the pattern established in previous E2E test fixes documented in file:docs/archive/e2e-test-fixes-2025-12/REACT_COMPONENT_ANALYSIS.md.

Implementation Steps

1. Fix API Port Mismatch in Checkpoint Client

File: file:web-ui/src/api/checkpoints.ts

Update line 17 to use the correct backend port:

// Change from:
const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000';

// To:
const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8080';

Rationale: The backend FastAPI server runs on port 8080 (as configured in file:tests/e2e/playwright.config.ts line 89). This change aligns the checkpoint API client with other API clients that already use port 8080 (file:web-ui/src/api/reviews.ts, file:web-ui/src/lib/api.ts, file:web-ui/src/lib/websocket.ts).

2. Verify Consistency Across All API Clients

Check and update the following API client files to ensure they all use port 8080:

File	Current Port	Action Required
file:web-ui/src/api/checkpoints.ts	8000	✅ Fix to 8080
file:web-ui/src/api/context.ts	8000	✅ Fix to 8080
file:web-ui/src/api/lint.ts	8000	✅ Fix to 8080
file:web-ui/src/api/metrics.ts	8000	✅ Fix to 8080
file:web-ui/src/api/qualityGates.ts	8000	✅ Fix to 8080
file:web-ui/src/api/review.ts	8000	✅ Fix to 8080
file:web-ui/src/api/reviews.ts	8080	✓ Already correct
file:web-ui/src/lib/api.ts	8080	✓ Already correct
file:web-ui/src/lib/websocket.ts	8080	✓ Already correct

Pattern to apply:

const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8080';

3. Verify Checkpoint Seeding Works

File: file:tests/e2e/global-setup.ts

The seedCheckpoints function (lines 536-631) already correctly seeds 3 checkpoints via the API endpoint. Verify that:

1. The function is called at line 828: await seedCheckpoints(page, projectId);
2. The endpoint URL uses BACKEND_URL which defaults to http://localhost:8080
3. The checkpoint data includes proper metadata structure matching CheckpointResponse model

No changes needed - seeding logic is correct.

4. Test Data Flow Verification

After fixing the port mismatch, verify the complete data flow:

sequenceDiagram
    participant Test as E2E Test
    participant Setup as global-setup.ts
    participant Backend as FastAPI (8080)
    participant DB as SQLite Database
    participant Frontend as Next.js (3000)
    participant CheckpointList as CheckpointList Component

    Test->>Setup: Run global setup
    Setup->>Backend: POST /api/projects/1/checkpoints (3x)
    Backend->>DB: INSERT INTO checkpoints
    DB-->>Backend: Success
    Backend-->>Setup: 201 Created
    Setup-->>Test: Setup complete
    
    Test->>Frontend: Navigate to /projects/1
    Frontend->>CheckpointList: Render component
    CheckpointList->>Backend: GET /api/projects/1/checkpoints
    Backend->>DB: SELECT * FROM checkpoints
    DB-->>Backend: 3 checkpoints
    Backend-->>CheckpointList: 200 OK + checkpoint data
    CheckpointList->>CheckpointList: Render 3 checkpoint items
    CheckpointList-->>Test: Display checkpoint-item-1, -2, -3

Loading

5. Acceptance Criteria Validation

After implementing the fix, verify:

• /api/projects/1/checkpoints returns 3 checkpoints (check browser Network tab)
• CheckpointList renders 3 checkpoint items with data-testid="checkpoint-item-{id}"
• Each item displays checkpoint name (data-testid="checkpoint-name")
• Each item displays timestamp (data-testid="checkpoint-timestamp")
• Each item displays git SHA (data-testid="checkpoint-git-sha")
• Create checkpoint button is visible (data-testid="create-checkpoint-button")
• All 8 checkpoint UI tests pass in file:tests/e2e/test_checkpoint_ui.spec.ts

6. Related Files Reference

Component	File Path	Purpose
Frontend API Client	file:web-ui/src/api/checkpoints.ts	Checkpoint API calls
Backend Router	file:codeframe/ui/routers/checkpoints.py	Checkpoint endpoints
Component	file:web-ui/src/components/checkpoints/CheckpointList.tsx	UI rendering
Dashboard	file:web-ui/src/components/Dashboard.tsx	Panel integration (line 514)
E2E Tests	file:tests/e2e/test_checkpoint_ui.spec.ts	Test suite
Test Setup	file:tests/e2e/global-setup.ts	Checkpoint seeding (line 828)
Playwright Config	file:tests/e2e/playwright.config.ts	Backend port config (line 89)

7. Debugging Steps (If Issues Persist)

If checkpoint items still don't render after the port fix:

1. Check browser console for API errors:

   // Expected: 200 OK from http://localhost:8080/api/projects/1/checkpoints
   // If error: Check CORS, backend running, database seeded

2. Verify backend endpoint manually:

   curl http://localhost:8080/api/projects/1/checkpoints
   # Expected: {"checkpoints": [...]} with 3 items

3. Check database for seeded data:

   sqlite3 tests/e2e/.codeframe/state.db "SELECT id, name, created_at FROM checkpoints WHERE project_id = 1;"
   # Expected: 3 rows

4. Add console logging to CheckpointList component (line 62):

   const data = await listCheckpoints(projectId);
   console.log('Checkpoints received:', data); // Debug output

5. Verify environment variable is not overriding the default:

   echo $NEXT_PUBLIC_API_URL
   # Should be empty or http://localhost:8080

Import In IDE

🤖 Prompt for AI Agents

## Observations

The checkpoint panel exists in the Dashboard and the CheckpointList component is properly implemented with correct data-testid attributes. However, **no checkpoint items are rendering** because of an **API port mismatch**. The frontend checkpoint API client (`file:web-ui/src/api/checkpoints.ts`) defaults to `http://localhost:8000`, but the backend server runs on port `8080` (configured in `file:tests/e2e/playwright.config.ts`). This causes all API requests to `/api/projects/1/checkpoints` to fail silently, leaving the checkpoint list empty. Additionally, the E2E test seeding script (`file:tests/e2e/seed-test-data.py`) does not include checkpoint seeding code, though the global setup (`file:tests/e2e/global-setup.ts`) attempts to seed checkpoints via API.

## Approach

Fix the API port mismatch by updating the default port in `file:web-ui/src/api/checkpoints.ts` from 8000 to 8080, ensuring consistency with other API clients (`file:web-ui/src/api/reviews.ts`, `file:web-ui/src/lib/api.ts`, `file:web-ui/src/lib/websocket.ts`) that already use the correct port. This is a targeted fix that addresses the root cause without introducing unnecessary complexity. The checkpoint seeding in `file:tests/e2e/global-setup.ts` already works correctly via API, so no database seeding changes are needed. This approach follows the pattern established in previous E2E test fixes documented in `file:docs/archive/e2e-test-fixes-2025-12/REACT_COMPONENT_ANALYSIS.md`.

## Implementation Steps

### 1. Fix API Port Mismatch in Checkpoint Client

**File**: `file:web-ui/src/api/checkpoints.ts`

Update line 17 to use the correct backend port:

```typescript
// Change from:
const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000';

// To:
const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8080';
```

**Rationale**: The backend FastAPI server runs on port 8080 (as configured in `file:tests/e2e/playwright.config.ts` line 89). This change aligns the checkpoint API client with other API clients that already use port 8080 (`file:web-ui/src/api/reviews.ts`, `file:web-ui/src/lib/api.ts`, `file:web-ui/src/lib/websocket.ts`).

### 2. Verify Consistency Across All API Clients

Check and update the following API client files to ensure they all use port 8080:

| File | Current Port | Action Required |
|------|-------------|-----------------|
| `file:web-ui/src/api/checkpoints.ts` | 8000 | ✅ Fix to 8080 |
| `file:web-ui/src/api/context.ts` | 8000 | ✅ Fix to 8080 |
| `file:web-ui/src/api/lint.ts` | 8000 | ✅ Fix to 8080 |
| `file:web-ui/src/api/metrics.ts` | 8000 | ✅ Fix to 8080 |
| `file:web-ui/src/api/qualityGates.ts` | 8000 | ✅ Fix to 8080 |
| `file:web-ui/src/api/review.ts` | 8000 | ✅ Fix to 8080 |
| `file:web-ui/src/api/reviews.ts` | 8080 | ✓ Already correct |
| `file:web-ui/src/lib/api.ts` | 8080 | ✓ Already correct |
| `file:web-ui/src/lib/websocket.ts` | 8080 | ✓ Already correct |

**Pattern to apply**:
```typescript
const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8080';
```

### 3. Verify Checkpoint Seeding Works

**File**: `file:tests/e2e/global-setup.ts`

The `seedCheckpoints` function (lines 536-631) already correctly seeds 3 checkpoints via the API endpoint. Verify that:

1. The function is called at line 828: `await seedCheckpoints(page, projectId);`
2. The endpoint URL uses `BACKEND_URL` which defaults to `http://localhost:8080`
3. The checkpoint data includes proper metadata structure matching `CheckpointResponse` model

**No changes needed** - seeding logic is correct.

### 4. Test Data Flow Verification

After fixing the port mismatch, verify the complete data flow:

```mermaid
sequenceDiagram
    participant Test as E2E Test
    participant Setup as global-setup.ts
    participant Backend as FastAPI (8080)
    participant DB as SQLite Database
    participant Frontend as Next.js (3000)
    participant CheckpointList as CheckpointList Component

    Test->>Setup: Run global setup
    Setup->>Backend: POST /api/projects/1/checkpoints (3x)
    Backend->>DB: INSERT INTO checkpoints
    DB-->>Backend: Success
    Backend-->>Setup: 201 Created
    Setup-->>Test: Setup complete
    
    Test->>Frontend: Navigate to /projects/1
    Frontend->>CheckpointList: Render component
    CheckpointList->>Backend: GET /api/projects/1/checkpoints
    Backend->>DB: SELECT * FROM checkpoints
    DB-->>Backend: 3 checkpoints
    Backend-->>CheckpointList: 200 OK + checkpoint data
    CheckpointList->>CheckpointList: Render 3 checkpoint items
    CheckpointList-->>Test: Display checkpoint-item-1, -2, -3
```

### 5. Acceptance Criteria Validation

After implementing the fix, verify:

- [ ] `/api/projects/1/checkpoints` returns 3 checkpoints (check browser Network tab)
- [ ] CheckpointList renders 3 checkpoint items with `data-testid="checkpoint-item-{id}"`
- [ ] Each item displays checkpoint name (`data-testid="checkpoint-name"`)
- [ ] Each item displays timestamp (`data-testid="checkpoint-timestamp"`)
- [ ] Each item displays git SHA (`data-testid="checkpoint-git-sha"`)
- [ ] Create checkpoint button is visible (`data-testid="create-checkpoint-button"`)
- [ ] All 8 checkpoint UI tests pass in `file:tests/e2e/test_checkpoint_ui.spec.ts`

### 6. Related Files Reference

| Component | File Path | Purpose |
|-----------|-----------|---------|
| Frontend API Client | `file:web-ui/src/api/checkpoints.ts` | Checkpoint API calls |
| Backend Router | `file:codeframe/ui/routers/checkpoints.py` | Checkpoint endpoints |
| Component | `file:web-ui/src/components/checkpoints/CheckpointList.tsx` | UI rendering |
| Dashboard | `file:web-ui/src/components/Dashboard.tsx` | Panel integration (line 514) |
| E2E Tests | `file:tests/e2e/test_checkpoint_ui.spec.ts` | Test suite |
| Test Setup | `file:tests/e2e/global-setup.ts` | Checkpoint seeding (line 828) |
| Playwright Config | `file:tests/e2e/playwright.config.ts` | Backend port config (line 89) |

### 7. Debugging Steps (If Issues Persist)

If checkpoint items still don't render after the port fix:

1. **Check browser console** for API errors:
   ```javascript
   // Expected: 200 OK from http://localhost:8080/api/projects/1/checkpoints
   // If error: Check CORS, backend running, database seeded
   ```

2. **Verify backend endpoint** manually:
   ```bash
   curl http://localhost:8080/api/projects/1/checkpoints
   # Expected: {"checkpoints": [...]} with 3 items
   ```

3. **Check database** for seeded data:
   ```bash
   sqlite3 tests/e2e/.codeframe/state.db "SELECT id, name, created_at FROM checkpoints WHERE project_id = 1;"
   # Expected: 3 rows
   ```

4. **Add console logging** to CheckpointList component (line 62):
   ```typescript
   const data = await listCheckpoints(projectId);
   console.log('Checkpoints received:', data); // Debug output
   ```

5. **Verify environment variable** is not overriding the default:
   ```bash
   echo $NEXT_PUBLIC_API_URL
   # Should be empty or http://localhost:8080
   ```

---

Execution Information

Branch: main
Commit: 2d6aa65

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🔗 Similar Issues

Related Issues

• Add data-testid attributes to Dashboard tabs for E2E testing #84
• Implement Checkpoint diff preview and proper delete confirmation dialog #47
• Fix SWR timing/cache issues causing flaky frontend tests #41
• Implement Quality Gates Panel in Dashboard #43
• Add unit tests for Quality Gates Panel components #56

🔗 Related PRs

frankbria/auto-author#9 - feat: Complete E2E Test Infrastructure with Auth Bypass [merged]
#38 - fix(e2e): Improve Playwright test pass rate from 18% to 57% [merged]
#50 - feat: Implement Quality Gates Panel in Dashboard (#43) [merged]
#51 - feat: Add TaskStats component to Dashboard Overview tab [merged]
#78 - Add error boundary protection for Quality Gates Panel [merged]

👤 Suggested Assignees

• frankbria

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[frankbria]

Closed by PR #91