---
phase: 02-data-persistence-file-management
verified: 2026-03-12T08:11:00Z
status: passed
score: 5/5 must-haves verified
re_verification: false
gaps: []
---

# Phase 2: Data Persistence & File Management Verification Report

**Phase Goal:** CSV data logging to flash memory with file management UI
**Verified:** 2026-03-12T08:11:00Z
**Status:** passed
**Re-verification:** No — initial verification

## Goal Achievement

### Observable Truths

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | User can view list of CSV files stored in flash memory | ✓ VERIFIED | GET /api/files endpoint returns JSON with files array (app.py:336-363). Files retrieved from /myvscada/logger or fallback src/data/logger |
| 2 | User can view contents of selected CSV files | ✓ VERIFIED | GET /api/files/<filename> endpoint returns file content (app.py:366-396). Limits preview to 100 lines |
| 3 | User can delete unwanted CSV files from flash memory | ✓ VERIFIED | DELETE /api/files/<filename> endpoint with path traversal protection (app.py:399-417) |
| 4 | User can navigate file list (scroll up/down) to find specific files | ✓ VERIFIED | CSS `.file-list-container` has overflow-y: auto with -webkit-overflow-scrolling: touch (files.html:66-76). File count display and search filter implemented |
| 5 | User can generate tidEDA formatted files for data transmission | ✓ VERIFIED | POST /api/files/export endpoint generates $STATION, $DATETIME, $DATA, $END structure (app.py:420-471). Download triggered via JavaScript |

**Score:** 5/5 truths verified

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `src/app.py` | File management API endpoints | ✓ VERIFIED | All 4 endpoints implemented: GET /api/files, GET /api/files/<filename>, DELETE /api/files/<filename>, POST /api/files/export |
| `src/templates/files.html` | File management UI page | ✓ VERIFIED | Full 469-line implementation with scrollable list, search/filter, view modal, export, delete |
| `src/templates/dashboard.html` | Files navigation link | ✓ VERIFIED | Line 273: `<a href="/files" class="nav-btn">` |
| `src/templates/settings.html` | Files navigation link | ✓ VERIFIED | Line 178: `<a href="/files" class="nav-btn">` |
| `src/templates/calibration.html` | Files navigation link | ✓ VERIFIED | Line 212: `<a href="/files" class="nav-btn">` |

### Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| files.html | /api/files | fetch GET | ✓ WIRED | Line 275: `await fetch('/api/files')` loads file list on page load |
| files.html | /api/files/<filename> | fetch GET | ✓ WIRED | Line 349: viewFile() fetches file content |
| files.html | /api/files/export | fetch POST | ✓ WIRED | Line 368-372: exportFile() POSTs with JSON body |
| files.html | /api/files/<filename> | fetch DELETE | ✓ WIRED | Line 407-409: deleteFile() sends DELETE request |
| dashboard.html | /files | href | ✓ WIRED | Navigation link present |
| settings.html | /files | href | ✓ WIRED | Navigation link present |
| calibration.html | /files | href | ✓ WIRED | Navigation link present |

### Requirements Coverage

| Requirement | Source Plan | Description | Status | Evidence |
|-------------|-------------|-------------|--------|----------|
| FILE-01 | 02-01 | List CSV files in flash memory | ✓ SATISFIED | GET /api/files returns files array with name, size, created, modified |
| FILE-02 | 02-01 | View CSV file contents | ✓ SATISFIED | GET /api/files/<filename> returns content (limited to 100 lines) |
| FILE-03 | 02-02 | Navigate file list (scroll up/down) | ✓ SATISFIED | CSS overflow-y: auto, -webkit-overflow-scrolling: touch, search/filter, file count |
| FILE-04 | 02-01 | Delete CSV files | ✓ SATISFIED | DELETE /api/files/<filename> with security validation |
| FILE-05 | 02-02 | Generate tidEDA formatted files | ✓ SATISFIED | POST /api/files/export returns $STATION, $DATETIME, $DATA, $END structure |
| BACK-04 | 02-01 | File management API | ✓ SATISFIED | All RESTful endpoints implemented with proper error handling |

**Note:** REQUIREMENTS.md marks FILE-03 and FILE-05 as "Pending" but implementation is complete. These should be updated to "Complete".

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| None | - | - | - | - |

No TODO/FIXME/HACK/PLACEHOLDER comments found in implementation files. No stub implementations detected. All endpoints have substantive logic with proper error handling.

### Human Verification Required

None — all verifiable items are complete.

### Gaps Summary

No gaps found. All must-haves verified, all artifacts exist and are substantive, all key links are wired, and all requirements are satisfied.

---

_Verified: 2026-03-12T08:11:00Z_
_Verifier: OpenCode (gsd-verifier)_