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/ 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/ 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/, DELETE /api/files/, 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/	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/	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/ 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/ 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)

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